From ffab9df46c5f2cb411765f72ecd6f5dcdb62fbb4 Mon Sep 17 00:00:00 2001
From: Jan Grulich <jgrulich@redhat.com>
Date: Thu, 27 Jul 2023 11:54:44 +0200
Subject: [PATCH 06/15] Re-implement palette, standardPixmap, file icons, fonts
in QGtk3Theme
Read theme colors from GTK3 style context and build platform theme
palettes in Qt.
React to runtime theme changes.
Re-implement methods to retrieve GTK3 styled standardPixmaps, fonts
and file icons.
---
.../5.15.12/QtCore/private/qflatmap_p.h | 2 +
src/corelib/tools/qflatmap_p.h | 1107 +++++++++++++++++
src/plugins/platformthemes/gtk3/gtk3.pro | 6 +
.../platformthemes/gtk3/qgtk3interface.cpp | 558 +++++++++
.../platformthemes/gtk3/qgtk3interface_p.h | 170 +++
src/plugins/platformthemes/gtk3/qgtk3json.cpp | 475 +++++++
src/plugins/platformthemes/gtk3/qgtk3json_p.h | 102 ++
.../platformthemes/gtk3/qgtk3storage.cpp | 470 +++++++
.../platformthemes/gtk3/qgtk3storage_p.h | 234 ++++
.../platformthemes/gtk3/qgtk3theme.cpp | 23 +
src/plugins/platformthemes/gtk3/qgtk3theme.h | 8 +
11 files changed, 3155 insertions(+)
create mode 100644 include/QtCore/5.15.12/QtCore/private/qflatmap_p.h
create mode 100644 src/corelib/tools/qflatmap_p.h
create mode 100644 src/plugins/platformthemes/gtk3/qgtk3interface.cpp
create mode 100644 src/plugins/platformthemes/gtk3/qgtk3interface_p.h
create mode 100644 src/plugins/platformthemes/gtk3/qgtk3json.cpp
create mode 100644 src/plugins/platformthemes/gtk3/qgtk3json_p.h
create mode 100644 src/plugins/platformthemes/gtk3/qgtk3storage.cpp
create mode 100644 src/plugins/platformthemes/gtk3/qgtk3storage_p.h
diff --git a/include/QtCore/5.15.12/QtCore/private/qflatmap_p.h b/include/QtCore/5.15.12/QtCore/private/qflatmap_p.h
new file mode 100644
index 0000000000..e629799f72
--- /dev/null
+++ b/include/QtCore/5.15.12/QtCore/private/qflatmap_p.h
@@ -0,0 +1,2 @@
+#include "../../../../../src/corelib/tools/qflatmap_p.h"
+
diff --git a/src/corelib/tools/qflatmap_p.h b/src/corelib/tools/qflatmap_p.h
new file mode 100644
index 0000000000..45153e23db
--- /dev/null
+++ b/src/corelib/tools/qflatmap_p.h
@@ -0,0 +1,1107 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QFLATMAP_P_H
+#define QFLATMAP_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists for the convenience
+// of a number of Qt sources files. This header file may change from
+// version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qlist.h"
+#include "private/qglobal_p.h"
+
+#include <algorithm>
+#include <functional>
+#include <initializer_list>
+#include <iterator>
+#include <numeric>
+#include <type_traits>
+#include <utility>
+#include <vector>
+#include <optional>
+
+QT_BEGIN_NAMESPACE
+
+/*
+ QFlatMap provides an associative container backed by sorted sequential
+ containers. By default, QList is used.
+
+ Keys and values are stored in two separate containers. This provides improved
+ cache locality for key iteration and makes keys() and values() fast
+ operations.
+
+ One can customize the underlying container type by passing the KeyContainer
+ and MappedContainer template arguments:
+ QFlatMap<float, int, std::less<float>, std::vector<float>, std::vector<int>>
+*/
+
+// Qt 6.4:
+// - removed QFlatMap API which was incompatible with STL semantics
+// - will be released with said API disabled, to catch any out-of-tree users
+// - also allows opting in to the new API using QFLATMAP_ENABLE_STL_COMPATIBLE_INSERT
+// Qt 6.5
+// - will make QFLATMAP_ENABLE_STL_COMPATIBLE_INSERT the default:
+
+#ifndef QFLATMAP_ENABLE_STL_COMPATIBLE_INSERT
+# define QFLATMAP_ENABLE_STL_COMPATIBLE_INSERT
+#endif
+
+namespace Qt {
+
+struct OrderedUniqueRange_t {};
+constexpr OrderedUniqueRange_t OrderedUniqueRange = {};
+
+} // namespace Qt
+
+template <class Key, class T, class Compare>
+class QFlatMapValueCompare : protected Compare
+{
+public:
+ QFlatMapValueCompare() = default;
+ QFlatMapValueCompare(const Compare &key_compare)
+ : Compare(key_compare)
+ {
+ }
+
+ using value_type = std::pair<const Key, T>;
+ static constexpr bool is_comparator_noexcept = noexcept(
+ std::declval<Compare>()(std::declval<const Key &>(), std::declval<const Key &>()));
+
+ bool operator()(const value_type &lhs, const value_type &rhs) const
+ noexcept(is_comparator_noexcept)
+ {
+ return Compare::operator()(lhs.first, rhs.first);
+ }
+};
+
+namespace qflatmap {
+namespace detail {
+template <class T>
+class QFlatMapMockPointer
+{
+ T ref;
+public:
+ QFlatMapMockPointer(T r)
+ : ref(r)
+ {
+ }
+
+ T *operator->()
+ {
+ return &ref;
+ }
+};
+} // namespace detail
+} // namespace qflatmap
+
+template<class Key, class T, class Compare = std::less<Key>, class KeyContainer = QList<Key>,
+ class MappedContainer = QList<T>>
+class QFlatMap : private QFlatMapValueCompare<Key, T, Compare>
+{
+ static_assert(std::is_nothrow_destructible_v<T>, "Types with throwing destructors are not supported in Qt containers.");
+
+ template<class U>
+ using mock_pointer = qflatmap::detail::QFlatMapMockPointer<U>;
+
+public:
+ using key_type = Key;
+ using mapped_type = T;
+ using value_compare = QFlatMapValueCompare<Key, T, Compare>;
+ using value_type = typename value_compare::value_type;
+ using key_container_type = KeyContainer;
+ using mapped_container_type = MappedContainer;
+ using size_type = typename key_container_type::size_type;
+ using key_compare = Compare;
+
+ struct containers
+ {
+ key_container_type keys;
+ mapped_container_type values;
+ };
+
+ class iterator
+ {
+ public:
+ using difference_type = ptrdiff_t;
+ using value_type = std::pair<const Key, T>;
+ using reference = std::pair<const Key &, T &>;
+ using pointer = mock_pointer<reference>;
+ using iterator_category = std::random_access_iterator_tag;
+
+ iterator() = default;
+
+ iterator(containers *ac, size_type ai)
+ : c(ac), i(ai)
+ {
+ }
+
+ reference operator*() const
+ {
+ return { c->keys[i], c->values[i] };
+ }
+
+ pointer operator->() const
+ {
+ return { operator*() };
+ }
+
+ bool operator==(const iterator &o) const
+ {
+ return c == o.c && i == o.i;
+ }
+
+ bool operator!=(const iterator &o) const
+ {
+ return !operator==(o);
+ }
+
+ iterator &operator++()
+ {
+ ++i;
+ return *this;
+ }
+
+ iterator operator++(int)
+ {
+
+ iterator r = *this;
+ ++*this;
+ return r;
+ }
+
+ iterator &operator--()
+ {
+ --i;
+ return *this;
+ }
+
+ iterator operator--(int)
+ {
+ iterator r = *this;
+ --*this;
+ return r;
+ }
+
+ iterator &operator+=(size_type n)
+ {
+ i += n;
+ return *this;
+ }
+
+ friend iterator operator+(size_type n, const iterator a)
+ {
+ iterator ret = a;
+ return ret += n;
+ }
+
+ friend iterator operator+(const iterator a, size_type n)
+ {
+ return n + a;
+ }
+
+ iterator &operator-=(size_type n)
+ {
+ i -= n;
+ return *this;
+ }
+
+ friend iterator operator-(const iterator a, size_type n)
+ {
+ iterator ret = a;
+ return ret -= n;
+ }
+
+ friend difference_type operator-(const iterator b, const iterator a)
+ {
+ return b.i - a.i;
+ }
+
+ reference operator[](size_type n) const
+ {
+ size_type k = i + n;
+ return { c->keys[k], c->values[k] };
+ }
+
+ bool operator<(const iterator &other) const
+ {
+ return i < other.i;
+ }
+
+ bool operator>(const iterator &other) const
+ {
+ return i > other.i;
+ }
+
+ bool operator<=(const iterator &other) const
+ {
+ return i <= other.i;
+ }
+
+ bool operator>=(const iterator &other) const
+ {
+ return i >= other.i;
+ }
+
+ const Key &key() const { return c->keys[i]; }
+ T &value() const { return c->values[i]; }
+
+ private:
+ containers *c = nullptr;
+ size_type i = 0;
+ friend QFlatMap;
+ };
+
+ class const_iterator
+ {
+ public:
+ using difference_type = ptrdiff_t;
+ using value_type = std::pair<const Key, const T>;
+ using reference = std::pair<const Key &, const T &>;
+ using pointer = mock_pointer<reference>;
+ using iterator_category = std::random_access_iterator_tag;
+
+ const_iterator() = default;
+
+ const_iterator(const containers *ac, size_type ai)
+ : c(ac), i(ai)
+ {
+ }
+
+ const_iterator(iterator o)
+ : c(o.c), i(o.i)
+ {
+ }
+
+ reference operator*() const
+ {
+ return { c->keys[i], c->values[i] };
+ }
+
+ pointer operator->() const
+ {
+ return { operator*() };
+ }
+
+ bool operator==(const const_iterator &o) const
+ {
+ return c == o.c && i == o.i;
+ }
+
+ bool operator!=(const const_iterator &o) const
+ {
+ return !operator==(o);
+ }
+
+ const_iterator &operator++()
+ {
+ ++i;
+ return *this;
+ }
+
+ const_iterator operator++(int)
+ {
+
+ const_iterator r = *this;
+ ++*this;
+ return r;
+ }
+
+ const_iterator &operator--()
+ {
+ --i;
+ return *this;
+ }
+
+ const_iterator operator--(int)
+ {
+ const_iterator r = *this;
+ --*this;
+ return r;
+ }
+
+ const_iterator &operator+=(size_type n)
+ {
+ i += n;
+ return *this;
+ }
+
+ friend const_iterator operator+(size_type n, const const_iterator a)
+ {
+ const_iterator ret = a;
+ return ret += n;
+ }
+
+ friend const_iterator operator+(const const_iterator a, size_type n)
+ {
+ return n + a;
+ }
+
+ const_iterator &operator-=(size_type n)
+ {
+ i -= n;
+ return *this;
+ }
+
+ friend const_iterator operator-(const const_iterator a, size_type n)
+ {
+ const_iterator ret = a;
+ return ret -= n;
+ }
+
+ friend difference_type operator-(const const_iterator b, const const_iterator a)
+ {
+ return b.i - a.i;
+ }
+
+ reference operator[](size_type n) const
+ {
+ size_type k = i + n;
+ return { c->keys[k], c->values[k] };
+ }
+
+ bool operator<(const const_iterator &other) const
+ {
+ return i < other.i;
+ }
+
+ bool operator>(const const_iterator &other) const
+ {
+ return i > other.i;
+ }
+
+ bool operator<=(const const_iterator &other) const
+ {
+ return i <= other.i;
+ }
+
+ bool operator>=(const const_iterator &other) const
+ {
+ return i >= other.i;
+ }
+
+ const Key &key() const { return c->keys[i]; }
+ const T &value() const { return c->values[i]; }
+
+ private:
+ const containers *c = nullptr;
+ size_type i = 0;
+ friend QFlatMap;
+ };
+
+private:
+ template <class, class = void>
+ struct is_marked_transparent_type : std::false_type { };
+
+ template <class X>
+ struct is_marked_transparent_type<X, std::void_t<typename X::is_transparent>> : std::true_type { };
+
+ template <class X>
+ using is_marked_transparent = typename std::enable_if<
+ is_marked_transparent_type<X>::value>::type *;
+
+ template <typename It>
+ using is_compatible_iterator = typename std::enable_if<
+ std::is_same<value_type, typename std::iterator_traits<It>::value_type>::value>::type *;
+
+public:
+ QFlatMap() = default;
+
+#ifdef QFLATMAP_ENABLE_STL_COMPATIBLE_INSERT
+ explicit QFlatMap(const key_container_type &keys, const mapped_container_type &values)
+ : c{keys, values}
+ {
+ ensureOrderedUnique();
+ }
+
+ explicit QFlatMap(key_container_type &&keys, const mapped_container_type &values)
+ : c{std::move(keys), values}
+ {
+ ensureOrderedUnique();
+ }
+
+ explicit QFlatMap(const key_container_type &keys, mapped_container_type &&values)
+ : c{keys, std::move(values)}
+ {
+ ensureOrderedUnique();
+ }
+
+ explicit QFlatMap(key_container_type &&keys, mapped_container_type &&values)
+ : c{std::move(keys), std::move(values)}
+ {
+ ensureOrderedUnique();
+ }
+
+ explicit QFlatMap(std::initializer_list<value_type> lst)
+ : QFlatMap(lst.begin(), lst.end())
+ {
+ }
+
+ template <class InputIt, is_compatible_iterator<InputIt> = nullptr>
+ explicit QFlatMap(InputIt first, InputIt last)
+ {
+ initWithRange(first, last);
+ ensureOrderedUnique();
+ }
+#endif
+
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, const key_container_type &keys,
+ const mapped_container_type &values)
+ : c{keys, values}
+ {
+ }
+
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, key_container_type &&keys,
+ const mapped_container_type &values)
+ : c{std::move(keys), values}
+ {
+ }
+
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, const key_container_type &keys,
+ mapped_container_type &&values)
+ : c{keys, std::move(values)}
+ {
+ }
+
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, key_container_type &&keys,
+ mapped_container_type &&values)
+ : c{std::move(keys), std::move(values)}
+ {
+ }
+
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, std::initializer_list<value_type> lst)
+ : QFlatMap(Qt::OrderedUniqueRange, lst.begin(), lst.end())
+ {
+ }
+
+ template <class InputIt, is_compatible_iterator<InputIt> = nullptr>
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, InputIt first, InputIt last)
+ {
+ initWithRange(first, last);
+ }
+
+ explicit QFlatMap(const Compare &compare)
+ : value_compare(compare)
+ {
+ }
+
+#ifdef QFLATMAP_ENABLE_STL_COMPATIBLE_INSERT
+ explicit QFlatMap(const key_container_type &keys, const mapped_container_type &values,
+ const Compare &compare)
+ : value_compare(compare), c{keys, values}
+ {
+ ensureOrderedUnique();
+ }
+
+ explicit QFlatMap(key_container_type &&keys, const mapped_container_type &values,
+ const Compare &compare)
+ : value_compare(compare), c{std::move(keys), values}
+ {
+ ensureOrderedUnique();
+ }
+
+ explicit QFlatMap(const key_container_type &keys, mapped_container_type &&values,
+ const Compare &compare)
+ : value_compare(compare), c{keys, std::move(values)}
+ {
+ ensureOrderedUnique();
+ }
+
+ explicit QFlatMap(key_container_type &&keys, mapped_container_type &&values,
+ const Compare &compare)
+ : value_compare(compare), c{std::move(keys), std::move(values)}
+ {
+ ensureOrderedUnique();
+ }
+
+ explicit QFlatMap(std::initializer_list<value_type> lst, const Compare &compare)
+ : QFlatMap(lst.begin(), lst.end(), compare)
+ {
+ }
+
+ template <class InputIt, is_compatible_iterator<InputIt> = nullptr>
+ explicit QFlatMap(InputIt first, InputIt last, const Compare &compare)
+ : value_compare(compare)
+ {
+ initWithRange(first, last);
+ ensureOrderedUnique();
+ }
+#endif
+
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, const key_container_type &keys,
+ const mapped_container_type &values, const Compare &compare)
+ : value_compare(compare), c{keys, values}
+ {
+ }
+
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, key_container_type &&keys,
+ const mapped_container_type &values, const Compare &compare)
+ : value_compare(compare), c{std::move(keys), values}
+ {
+ }
+
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, const key_container_type &keys,
+ mapped_container_type &&values, const Compare &compare)
+ : value_compare(compare), c{keys, std::move(values)}
+ {
+ }
+
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, key_container_type &&keys,
+ mapped_container_type &&values, const Compare &compare)
+ : value_compare(compare), c{std::move(keys), std::move(values)}
+ {
+ }
+
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, std::initializer_list<value_type> lst,
+ const Compare &compare)
+ : QFlatMap(Qt::OrderedUniqueRange, lst.begin(), lst.end(), compare)
+ {
+ }
+
+ template <class InputIt, is_compatible_iterator<InputIt> = nullptr>
+ explicit QFlatMap(Qt::OrderedUniqueRange_t, InputIt first, InputIt last, const Compare &compare)
+ : value_compare(compare)
+ {
+ initWithRange(first, last);
+ }
+
+ size_type count() const noexcept { return c.keys.size(); }
+ size_type size() const noexcept { return c.keys.size(); }
+ size_type capacity() const noexcept { return c.keys.capacity(); }
+ bool isEmpty() const noexcept { return c.keys.empty(); }
+ bool empty() const noexcept { return c.keys.empty(); }
+ containers extract() && { return std::move(c); }
+ const key_container_type &keys() const noexcept { return c.keys; }
+ const mapped_container_type &values() const noexcept { return c.values; }
+
+ void reserve(size_type s)
+ {
+ c.keys.reserve(s);
+ c.values.reserve(s);
+ }
+
+ void clear()
+ {
+ c.keys.clear();
+ c.values.clear();
+ }
+
+ bool remove(const Key &key)
+ {
+ return do_remove(find(key));
+ }
+
+ template <class X, class Y = Compare, is_marked_transparent<Y> = nullptr>
+ bool remove(const X &key)
+ {
+ return do_remove(find(key));
+ }
+
+ iterator erase(iterator it)
+ {
+ c.values.erase(toValuesIterator(it));
+ return fromKeysIterator(c.keys.erase(toKeysIterator(it)));
+ }
+
+ T take(const Key &key)
+ {
+ return do_take(find(key));
+ }
+
+ template <class X, class Y = Compare, is_marked_transparent<Y> = nullptr>
+ T take(const X &key)
+ {
+ return do_take(find(key));
+ }
+
+ bool contains(const Key &key) const
+ {
+ return find(key) != end();
+ }
+
+ template <class X, class Y = Compare, is_marked_transparent<Y> = nullptr>
+ bool contains(const X &key) const
+ {
+ return find(key) != end();
+ }
+
+ T value(const Key &key, const T &defaultValue) const
+ {
+ auto it = find(key);
+ return it == end() ? defaultValue : it.value();
+ }
+
+ template <class X, class Y = Compare, is_marked_transparent<Y> = nullptr>
+ T value(const X &key, const T &defaultValue) const
+ {
+ auto it = find(key);
+ return it == end() ? defaultValue : it.value();
+ }
+
+ T value(const Key &key) const
+ {
+ auto it = find(key);
+ return it == end() ? T() : it.value();
+ }
+
+ template <class X, class Y = Compare, is_marked_transparent<Y> = nullptr>
+ T value(const X &key) const
+ {
+ auto it = find(key);
+ return it == end() ? T() : it.value();
+ }
+
+ T &operator[](const Key &key)
+ {
+ return try_emplace(key).first.value();
+ }
+
+ T &operator[](Key &&key)
+ {
+ return try_emplace(std::move(key)).first.value();
+ }
+
+ T operator[](const Key &key) const
+ {
+ return value(key);
+ }
+
+#ifdef QFLATMAP_ENABLE_STL_COMPATIBLE_INSERT
+ std::pair<iterator, bool> insert(const Key &key, const T &value)
+ {
+ return try_emplace(key, value);
+ }
+
+ std::pair<iterator, bool> insert(Key &&key, const T &value)
+ {
+ return try_emplace(std::move(key), value);
+ }
+
+ std::pair<iterator, bool> insert(const Key &key, T &&value)
+ {
+ return try_emplace(key, std::move(value));
+ }
+
+ std::pair<iterator, bool> insert(Key &&key, T &&value)
+ {
+ return try_emplace(std::move(key), std::move(value));
+ }
+#endif
+
+ template <typename...Args>
+ std::pair<iterator, bool> try_emplace(const Key &key, Args&&...args)
+ {
+ auto it = lower_bound(key);
+ if (it == end() || key_compare::operator()(key, it.key())) {
+ c.values.insert(toValuesIterator(it), std::forward<Args>(args)...);
+ return { fromKeysIterator(c.keys.insert(toKeysIterator(it), key)), true };
+ } else {
+ return {it, false};
+ }
+ }
+
+ template <typename...Args>
+ std::pair<iterator, bool> try_emplace(Key &&key, Args&&...args)
+ {
+ auto it = lower_bound(key);
+ if (it == end() || key_compare::operator()(key, it.key())) {
+ c.values.insert(toValuesIterator(it), std::forward<Args>(args)...);
+ return { fromKeysIterator(c.keys.insert(toKeysIterator(it), std::move(key))), true };
+ } else {
+ return {it, false};
+ }
+ }
+
+ template <typename M>
+ std::pair<iterator, bool> insert_or_assign(const Key &key, M &&obj)
+ {
+ auto r = try_emplace(key, std::forward<M>(obj));
+ if (!r.second)
+ *toValuesIterator(r.first) = std::forward<M>(obj);
+ return r;
+ }
+
+ template <typename M>
+ std::pair<iterator, bool> insert_or_assign(Key &&key, M &&obj)
+ {
+ auto r = try_emplace(std::move(key), std::forward<M>(obj));
+ if (!r.second)
+ *toValuesIterator(r.first) = std::forward<M>(obj);
+ return r;
+ }
+
+#ifdef QFLATMAP_ENABLE_STL_COMPATIBLE_INSERT
+ template <class InputIt, is_compatible_iterator<InputIt> = nullptr>
+ void insert(InputIt first, InputIt last)
+ {
+ insertRange(first, last);
+ }
+
+ // ### Merge with the templated version above
+ // once we can use std::disjunction in is_compatible_iterator.
+ void insert(const value_type *first, const value_type *last)
+ {
+ insertRange(first, last);
+ }
+
+ template <class InputIt, is_compatible_iterator<InputIt> = nullptr>
+ void insert(Qt::OrderedUniqueRange_t, InputIt first, InputIt last)
+ {
+ insertOrderedUniqueRange(first, last);
+ }
+
+ // ### Merge with the templated version above
+ // once we can use std::disjunction in is_compatible_iterator.
+ void insert(Qt::OrderedUniqueRange_t, const value_type *first, const value_type *last)
+ {
+ insertOrderedUniqueRange(first, last);
+ }
+#endif
+
+ iterator begin() { return { &c, 0 }; }
+ const_iterator begin() const { return { &c, 0 }; }
+ const_iterator cbegin() const { return begin(); }
+ const_iterator constBegin() const { return cbegin(); }
+ iterator end() { return { &c, c.keys.size() }; }
+ const_iterator end() const { return { &c, c.keys.size() }; }
+ const_iterator cend() const { return end(); }
+ const_iterator constEnd() const { return cend(); }
+ std::reverse_iterator<iterator> rbegin() { return std::reverse_iterator<iterator>(end()); }
+ std::reverse_iterator<const_iterator> rbegin() const
+ {
+ return std::reverse_iterator<const_iterator>(end());
+ }
+ std::reverse_iterator<const_iterator> crbegin() const { return rbegin(); }
+ std::reverse_iterator<iterator> rend() {
+ return std::reverse_iterator<iterator>(begin());
+ }
+ std::reverse_iterator<const_iterator> rend() const
+ {
+ return std::reverse_iterator<const_iterator>(begin());
+ }
+ std::reverse_iterator<const_iterator> crend() const { return rend(); }
+
+ iterator lower_bound(const Key &key)
+ {
+ auto cit = std::as_const(*this).lower_bound(key);
+ return { &c, cit.i };
+ }
+
+ template <class X, class Y = Compare, is_marked_transparent<Y> = nullptr>
+ iterator lower_bound(const X &key)
+ {
+ auto cit = std::as_const(*this).lower_bound(key);
+ return { &c, cit.i };
+ }
+
+ const_iterator lower_bound(const Key &key) const
+ {
+ return fromKeysIterator(std::lower_bound(c.keys.begin(), c.keys.end(), key, key_comp()));
+ }
+
+ template <class X, class Y = Compare, is_marked_transparent<Y> = nullptr>
+ const_iterator lower_bound(const X &key) const
+ {
+ return fromKeysIterator(std::lower_bound(c.keys.begin(), c.keys.end(), key, key_comp()));
+ }
+
+ iterator find(const Key &key)
+ {
+ return { &c, std::as_const(*this).find(key).i };
+ }
+
+ template <class X, class Y = Compare, is_marked_transparent<Y> = nullptr>
+ iterator find(const X &key)
+ {
+ return { &c, std::as_const(*this).find(key).i };
+ }
+
+ const_iterator find(const Key &key) const
+ {
+ auto it = lower_bound(key);
+ if (it != end()) {
+ if (!key_compare::operator()(key, it.key()))
+ return it;
+ it = end();
+ }
+ return it;
+ }
+
+ template <class X, class Y = Compare, is_marked_transparent<Y> = nullptr>
+ const_iterator find(const X &key) const
+ {
+ auto it = lower_bound(key);
+ if (it != end()) {
+ if (!key_compare::operator()(key, it.key()))
+ return it;
+ it = end();
+ }
+ return it;
+ }
+
+ template <typename Predicate>
+ size_type remove_if(Predicate pred)
+ {
+ const auto indirect_call_to_pred = [pred = std::move(pred)](iterator it) {
+ using Pair = decltype(*it);
+ using K = decltype(it.key());
+ using V = decltype(it.value());
+ using P = Predicate;
+ if constexpr (std::is_invocable_v<P, K, V>) {
+ return pred(it.key(), it.value());
+ } else if constexpr (std::is_invocable_v<P, Pair> && !std::is_invocable_v<P, K>) {
+ return pred(*it);
+ } else if constexpr (std::is_invocable_v<P, K> && !std::is_invocable_v<P, Pair>) {
+ return pred(it.key());
+ } else {
+ static_assert(std::false_type(),
+ "Don't know how to call the predicate.\n"
+ "Options:\n"
+ "- pred(*it)\n"
+ "- pred(it.key(), it.value())\n"
+ "- pred(it.key())");
+ }
+ };
+
+ auto first = begin();
+ const auto last = end();
+
+ // find_if prefix loop
+ while (first != last && !indirect_call_to_pred(first))
+ ++first;
+
+ if (first == last)
+ return 0; // nothing to do
+
+ // we know that we need to remove *first
+
+ auto kdest = toKeysIterator(first);
+ auto vdest = toValuesIterator(first);
+
+ ++first;
+
+ auto k = std::next(kdest);
+ auto v = std::next(vdest);
+
+ // Main Loop
+ // - first is used only for indirect_call_to_pred
+ // - operations are done on k, v
+ // Loop invariants:
+ // - first, k, v are pointing to the same element
+ // - [begin(), first[, [c.keys.begin(), k[, [c.values.begin(), v[: already processed
+ // - [first, end()[, [k, c.keys.end()[, [v, c.values.end()[: still to be processed
+ // - [c.keys.begin(), kdest[ and [c.values.begin(), vdest[ are keepers
+ // - [kdest, k[, [vdest, v[ are considered removed
+ // - kdest is not c.keys.end()
+ // - vdest is not v.values.end()
+ while (first != last) {
+ if (!indirect_call_to_pred(first)) {
+ // keep *first, aka {*k, *v}
+ *kdest = std::move(*k);
+ *vdest = std::move(*v);
+ ++kdest;
+ ++vdest;
+ }
+ ++k;
+ ++v;
+ ++first;
+ }
+
+ const size_type r = std::distance(kdest, c.keys.end());
+ c.keys.erase(kdest, c.keys.end());
+ c.values.erase(vdest, c.values.end());
+ return r;
+ }
+
+ key_compare key_comp() const noexcept
+ {
+ return static_cast<key_compare>(*this);
+ }
+
+ value_compare value_comp() const noexcept
+ {
+ return static_cast<value_compare>(*this);
+ }
+
+private:
+ bool do_remove(iterator it)
+ {
+ if (it != end()) {
+ erase(it);
+ return true;
+ }
+ return false;
+ }
+
+ T do_take(iterator it)
+ {
+ if (it != end()) {
+ T result = std::move(it.value());
+ erase(it);
+ return result;
+ }
+ return {};
+ }
+
+ template <class InputIt, is_compatible_iterator<InputIt> = nullptr>
+ void initWithRange(InputIt first, InputIt last)
+ {
+ QtPrivate::reserveIfForwardIterator(this, first, last);
+ while (first != last) {
+ c.keys.push_back(first->first);
+ c.values.push_back(first->second);
+ ++first;
+ }
+ }
+
+ iterator fromKeysIterator(typename key_container_type::iterator kit)
+ {
+ return { &c, static_cast<size_type>(std::distance(c.keys.begin(), kit)) };
+ }
+
+ const_iterator fromKeysIterator(typename key_container_type::const_iterator kit) const
+ {
+ return { &c, static_cast<size_type>(std::distance(c.keys.begin(), kit)) };
+ }
+
+ typename key_container_type::iterator toKeysIterator(iterator it)
+ {
+ return c.keys.begin() + it.i;
+ }
+
+ typename mapped_container_type::iterator toValuesIterator(iterator it)
+ {
+ return c.values.begin() + it.i;
+ }
+
+ template <class InputIt>
+ void insertRange(InputIt first, InputIt last)
+ {
+ size_type i = c.keys.size();
+ c.keys.resize(i + std::distance(first, last));
+ c.values.resize(c.keys.size());
+ for (; first != last; ++first, ++i) {
+ c.keys[i] = first->first;
+ c.values[i] = first->second;
+ }
+ ensureOrderedUnique();
+ }
+
+ class IndexedKeyComparator
+ {
+ public:
+ IndexedKeyComparator(const QFlatMap *am)
+ : m(am)
+ {
+ }
+
+ bool operator()(size_type i, size_type k) const
+ {
+ return m->key_comp()(m->c.keys[i], m->c.keys[k]);
+ }
+
+ private:
+ const QFlatMap *m;
+ };
+
+ template <class InputIt>
+ void insertOrderedUniqueRange(InputIt first, InputIt last)
+ {
+ const size_type s = c.keys.size();
+ c.keys.resize(s + std::distance(first, last));
+ c.values.resize(c.keys.size());
+ for (size_type i = s; first != last; ++first, ++i) {
+ c.keys[i] = first->first;
+ c.values[i] = first->second;
+ }
+
+ std::vector<size_type> p(size_t(c.keys.size()));
+ std::iota(p.begin(), p.end(), 0);
+ std::inplace_merge(p.begin(), p.begin() + s, p.end(), IndexedKeyComparator(this));
+ applyPermutation(p);
+ makeUnique();
+ }
+
+ void ensureOrderedUnique()
+ {
+ std::vector<size_type> p(size_t(c.keys.size()));
+ std::iota(p.begin(), p.end(), 0);
+ std::stable_sort(p.begin(), p.end(), IndexedKeyComparator(this));
+ applyPermutation(p);
+ makeUnique();
+ }
+
+ void applyPermutation(const std::vector<size_type> &p)
+ {
+ const size_type s = c.keys.size();
+ std::vector<bool> done(s);
+ for (size_type i = 0; i < s; ++i) {
+ if (done[i])
+ continue;
+ done[i] = true;
+ size_type j = i;
+ size_type k = p[i];
+ while (i != k) {
+ qSwap(c.keys[j], c.keys[k]);
+ qSwap(c.values[j], c.values[k]);
+ done[k] = true;
+ j = k;
+ k = p[j];
+ }
+ }
+ }
+
+ void makeUnique()
+ {
+ // std::unique, but over two ranges
+ auto equivalent = [this](const auto &lhs, const auto &rhs) {
+ return !key_compare::operator()(lhs, rhs) && !key_compare::operator()(rhs, lhs);
+ };
+ const auto kb = c.keys.begin();
+ const auto ke = c.keys.end();
+ auto k = std::adjacent_find(kb, ke, equivalent);
+ if (k == ke)
+ return;
+
+ // equivalent keys found, we need to do actual work:
+ auto v = std::next(c.values.begin(), std::distance(kb, k));
+
+ auto kdest = k;
+ auto vdest = v;
+
+ ++k;
+ ++v;
+
+ // Loop Invariants:
+ //
+ // - [keys.begin(), kdest] and [values.begin(), vdest] are unique
+ // - k is not keys.end(), v is not values.end()
+ // - [next(k), keys.end()[ and [next(v), values.end()[ still need to be checked
+ while ((++v, ++k) != ke) {
+ if (!equivalent(*kdest, *k)) {
+ *++kdest = std::move(*k);
+ *++vdest = std::move(*v);
+ }
+ }
+
+ c.keys.erase(std::next(kdest), ke);
+ c.values.erase(std::next(vdest), c.values.end());
+ }
+
+ containers c;
+};
+
+template<class Key, class T, qsizetype N = 256, class Compare = std::less<Key>>
+using QVarLengthFlatMap = QFlatMap<Key, T, Compare, QVarLengthArray<Key, N>, QVarLengthArray<T, N>>;
+
+QT_END_NAMESPACE
+
+#endif // QFLATMAP_P_H
+
diff --git a/src/plugins/platformthemes/gtk3/gtk3.pro b/src/plugins/platformthemes/gtk3/gtk3.pro
index 8d217396d3..c442b24a0a 100644
--- a/src/plugins/platformthemes/gtk3/gtk3.pro
+++ b/src/plugins/platformthemes/gtk3/gtk3.pro
@@ -15,11 +15,17 @@ QMAKE_CXXFLAGS_WARN_ON += -Wno-error=parentheses
HEADERS += \
qgtk3dialoghelpers.h \
+ qgtk3interface_p.h \
+ qgtk3json_p.h \
qgtk3menu.h \
+ qgtk3storage_p.h \
qgtk3theme.h
SOURCES += \
main.cpp \
qgtk3dialoghelpers.cpp \
+ qgtk3interface.cpp \
+ qgtk3json.cpp \
qgtk3menu.cpp \
+ qgtk3storage.cpp \
qgtk3theme.cpp
diff --git a/src/plugins/platformthemes/gtk3/qgtk3interface.cpp b/src/plugins/platformthemes/gtk3/qgtk3interface.cpp
new file mode 100644
index 0000000000..d932b250a5
--- /dev/null
+++ b/src/plugins/platformthemes/gtk3/qgtk3interface.cpp
@@ -0,0 +1,558 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+
+#include "qgtk3interface_p.h"
+#include "qgtk3storage_p.h"
+#include <QtCore/QMetaEnum>
+#include <QtCore/QSettings>
+#include <QtCore/QFileInfo>
+#include <QtGui/QFontDatabase>
+#include <QtGui/QIcon>
+
+QT_BEGIN_NAMESPACE
+Q_LOGGING_CATEGORY(lcQGtk3Interface, "qt.qpa.gtk");
+
+
+// Callback for gnome event loop has to be static
+static QGtk3Storage *m_storage = nullptr;
+
+QGtk3Interface::QGtk3Interface(QGtk3Storage *s)
+{
+ initColorMap();
+
+ if (!s) {
+ qCDebug(lcQGtk3Interface) << "QGtk3Interface instantiated without QGtk3Storage."
+ << "No reaction to runtime theme changes.";
+ return;
+ }
+
+ // Connect to the GTK settings changed signal
+ auto handleThemeChange = [] {
+ if (m_storage)
+ m_storage->handleThemeChange();
+ };
+
+ GtkSettings *settings = gtk_settings_get_default();
+ const gboolean success = g_signal_connect(settings, "notify::gtk-theme-name",
+ G_CALLBACK(handleThemeChange), nullptr);
+ if (success == FALSE) {
+ qCDebug(lcQGtk3Interface) << "Connection to theme change signal failed."
+ << "No reaction to runtime theme changes.";
+ } else {
+ m_storage = s;
+ }
+}
+
+QGtk3Interface::~QGtk3Interface()
+{
+ // Ignore theme changes when destructor is reached
+ m_storage = nullptr;
+
+ // QGtkWidgets have to be destroyed manually
+ for (auto v : cache)
+ gtk_widget_destroy(v.second);
+}
+
+int QGtk3Interface::toGtkState(const QString &state)
+{
+#define CASE(x) \
+ if (QLatin1String(QByteArray(state.toLatin1())) == #x) \
+ return GTK_STATE_FLAG_ ##x
+
+#define CONVERT\
+ CASE(NORMAL);\
+ CASE(ACTIVE);\
+ CASE(PRELIGHT);\
+ CASE(SELECTED);\
+ CASE(INSENSITIVE);\
+ CASE(INCONSISTENT);\
+ CASE(FOCUSED);\
+ CASE(BACKDROP);\
+ CASE(DIR_LTR);\
+ CASE(DIR_RTL);\
+ CASE(LINK);\
+ CASE(VISITED);\
+ CASE(CHECKED);\
+ CASE(DROP_ACTIVE)
+
+ CONVERT;
+ return -1;
+#undef CASE
+}
+
+const QLatin1String QGtk3Interface::fromGtkState(GtkStateFlags state)
+{
+#define CASE(x) case GTK_STATE_FLAG_ ##x: return QLatin1String(#x)
+ switch (state) {
+ CONVERT;
+ }
+ Q_UNREACHABLE();
+#undef CASE
+#undef CONVERT
+}
+
+void QGtk3Interface::initColorMap()
+{
+ // Populate map with default values
+ #define SAVE(src, state, prop, def)\
+ {ColorKey({QGtkColorSource::src, GTK_STATE_FLAG_ ##state}), ColorValue({#prop, QGtkColorDefault::def})}
+
+ gtkColorMap = ColorMap {
+ SAVE(Foreground, NORMAL, theme_fg_color, Foreground),
+ SAVE(Foreground, BACKDROP, theme_unfocused_selected_fg_color, Foreground),
+ SAVE(Foreground, INSENSITIVE, insensitive_fg_color, Foreground),
+ SAVE(Foreground, SELECTED, theme_selected_fg_color, Foreground),
+ SAVE(Foreground, ACTIVE, theme_unfocused_fg_color, Foreground),
+ SAVE(Text, NORMAL, theme_text_color, Foreground),
+ SAVE(Text, ACTIVE, theme_unfocused_text_color, Foreground),
+ SAVE(Base, NORMAL, theme_base_color, Background),
+ SAVE(Base, INSENSITIVE, insensitive_base_color, Background),
+ SAVE(Background, NORMAL, theme_bg_color, Background),
+ SAVE(Background, SELECTED, theme_selected_bg_color, Background),
+ SAVE(Background, INSENSITIVE, insensitive_bg_color, Background),
+ SAVE(Background, ACTIVE, theme_unfocused_bg_color, Background),
+ SAVE(Background, BACKDROP, theme_unfocused_selected_bg_color, Background),
+ SAVE(Border, NORMAL, borders, Border),
+ SAVE(Border, ACTIVE, unfocused_borders, Border)
+ };
+#undef SAVE
+
+ qCDebug(lcQGtk3Interface) << "Color map populated from defaults.";
+}
+
+// Return an image rather than an icon or a pixmap:
+// Image can be cached and re-scaled to different sizes if requested multiple times
+QImage QGtk3Interface::standardPixmap(QPlatformTheme::StandardPixmap standardPixmap) const
+{
+ switch (standardPixmap) {
+ case QPlatformTheme::DialogDiscardButton:
+ return qt_gtk_get_icon(GTK_STOCK_DELETE);
+ case QPlatformTheme::DialogOkButton:
+ return qt_gtk_get_icon(GTK_STOCK_OK);
+ case QPlatformTheme::DialogCancelButton:
+ return qt_gtk_get_icon(GTK_STOCK_CANCEL);
+ case QPlatformTheme::DialogYesButton:
+ return qt_gtk_get_icon(GTK_STOCK_YES);
+ case QPlatformTheme::DialogNoButton:
+ return qt_gtk_get_icon(GTK_STOCK_NO);
+ case QPlatformTheme::DialogOpenButton:
+ return qt_gtk_get_icon(GTK_STOCK_OPEN);
+ case QPlatformTheme::DialogCloseButton:
+ return qt_gtk_get_icon(GTK_STOCK_CLOSE);
+ case QPlatformTheme::DialogApplyButton:
+ return qt_gtk_get_icon(GTK_STOCK_APPLY);
+ case QPlatformTheme::DialogSaveButton:
+ return qt_gtk_get_icon(GTK_STOCK_SAVE);
+ case QPlatformTheme::MessageBoxWarning:
+ return qt_gtk_get_icon(GTK_STOCK_DIALOG_WARNING);
+ case QPlatformTheme::MessageBoxQuestion:
+ return qt_gtk_get_icon(GTK_STOCK_DIALOG_QUESTION);
+ case QPlatformTheme::MessageBoxInformation:
+ return qt_gtk_get_icon(GTK_STOCK_DIALOG_INFO);
+ case QPlatformTheme::MessageBoxCritical:
+ return qt_gtk_get_icon(GTK_STOCK_DIALOG_ERROR);
+ case QPlatformTheme::CustomBase:
+ case QPlatformTheme::TitleBarMenuButton:
+ case QPlatformTheme::TitleBarMinButton:
+ case QPlatformTheme::TitleBarMaxButton:
+ case QPlatformTheme::TitleBarCloseButton:
+ case QPlatformTheme::TitleBarNormalButton:
+ case QPlatformTheme::TitleBarShadeButton:
+ case QPlatformTheme::TitleBarUnshadeButton:
+ case QPlatformTheme::TitleBarContextHelpButton:
+ case QPlatformTheme::DockWidgetCloseButton:
+ case QPlatformTheme::DesktopIcon:
+ case QPlatformTheme::TrashIcon:
+ case QPlatformTheme::ComputerIcon:
+ case QPlatformTheme::DriveFDIcon:
+ case QPlatformTheme::DriveHDIcon:
+ case QPlatformTheme::DriveCDIcon:
+ case QPlatformTheme::DriveDVDIcon:
+ case QPlatformTheme::DriveNetIcon:
+ case QPlatformTheme::DirOpenIcon:
+ case QPlatformTheme::DirClosedIcon:
+ case QPlatformTheme::DirLinkIcon:
+ case QPlatformTheme::DirLinkOpenIcon:
+ case QPlatformTheme::FileIcon:
+ case QPlatformTheme::FileLinkIcon:
+ case QPlatformTheme::ToolBarHorizontalExtensionButton:
+ case QPlatformTheme::ToolBarVerticalExtensionButton:
+ case QPlatformTheme::FileDialogStart:
+ case QPlatformTheme::FileDialogEnd:
+ case QPlatformTheme::FileDialogToParent:
+ case QPlatformTheme::FileDialogNewFolder:
+ case QPlatformTheme::FileDialogDetailedView:
+ case QPlatformTheme::FileDialogInfoView:
+ case QPlatformTheme::FileDialogContentsView:
+ case QPlatformTheme::FileDialogListView:
+ case QPlatformTheme::FileDialogBack:
+ case QPlatformTheme::DirIcon:
+ case QPlatformTheme::DialogHelpButton:
+ case QPlatformTheme::DialogResetButton:
+ case QPlatformTheme::ArrowUp:
+ case QPlatformTheme::ArrowDown:
+ case QPlatformTheme::ArrowLeft:
+ case QPlatformTheme::ArrowRight:
+ case QPlatformTheme::ArrowBack:
+ case QPlatformTheme::ArrowForward:
+ case QPlatformTheme::DirHomeIcon:
+ case QPlatformTheme::CommandLink:
+ case QPlatformTheme::VistaShield:
+ case QPlatformTheme::BrowserReload:
+ case QPlatformTheme::BrowserStop:
+ case QPlatformTheme::MediaPlay:
+ case QPlatformTheme::MediaStop:
+ case QPlatformTheme::MediaPause:
+ case QPlatformTheme::MediaSkipForward:
+ case QPlatformTheme::MediaSkipBackward:
+ case QPlatformTheme::MediaSeekForward:
+ case QPlatformTheme::MediaSeekBackward:
+ case QPlatformTheme::MediaVolume:
+ case QPlatformTheme::MediaVolumeMuted:
+ case QPlatformTheme::LineEditClearButton:
+ case QPlatformTheme::DialogYesToAllButton:
+ case QPlatformTheme::DialogNoToAllButton:
+ case QPlatformTheme::DialogSaveAllButton:
+ case QPlatformTheme::DialogAbortButton:
+ case QPlatformTheme::DialogRetryButton:
+ case QPlatformTheme::DialogIgnoreButton:
+ case QPlatformTheme::RestoreDefaultsButton:
+ case QPlatformTheme::NStandardPixmap:
+ return QImage();
+ }
+ Q_UNREACHABLE();
+}
+
+QImage QGtk3Interface::qt_gtk_get_icon(const char* iconName) const
+{
+ GtkIconSet* iconSet = gtk_icon_factory_lookup_default (iconName);
+ GdkPixbuf* icon = gtk_icon_set_render_icon_pixbuf(iconSet, context(), GTK_ICON_SIZE_DIALOG);
+ return qt_convert_gdk_pixbuf(icon);
+}
+
+QImage QGtk3Interface::qt_convert_gdk_pixbuf(GdkPixbuf *buf) const
+{
+ if (!buf)
+ return QImage();
+
+ // Ability to convert GdkPixbuf to QImage relies on the assumptions, that
+ // - QImage uses uchar as a data container
+ // - the types guint8 and uchar are identical
+ const guint8 *gdata = gdk_pixbuf_read_pixels(buf);
+ static_assert(std::is_same<decltype(gdata), const uchar *>::value,
+ "guint8 has diverted from uchar. Code needs fixing.");
+ Q_ASSUME(gdk_pixbuf_get_bits_per_sample(buf) == 8);
+ Q_ASSUME(gdk_pixbuf_get_n_channels(buf) == 4);
+ const uchar *data = static_cast<const uchar *>(gdata);
+
+ const int width = gdk_pixbuf_get_width(buf);
+ const int height = gdk_pixbuf_get_height(buf);
+ const int bpl = gdk_pixbuf_get_rowstride(buf);
+ QImage converted(data, width, height, bpl, QImage::Format_ARGB32);
+ return converted.copy(); // detatch to survive lifetime of buf
+}
+
+GtkWidget *QGtk3Interface::qt_new_gtkWidget(QGtkWidget type) const
+{
+#define CASE(Type)\
+ case QGtkWidget::Type: return Type ##_new();
+#define CASEN(Type)\
+ case QGtkWidget::Type: return Type ##_new(nullptr);
+
+ switch (type) {
+ CASE(gtk_menu_bar)
+ CASE(gtk_menu)
+ CASE(gtk_button)
+ case QGtkWidget::gtk_button_box: return gtk_button_box_new(GtkOrientation::GTK_ORIENTATION_HORIZONTAL);
+ CASE(gtk_check_button)
+ CASEN(gtk_radio_button)
+ CASEN(gtk_frame)
+ CASE(gtk_statusbar)
+ CASE(gtk_entry)
+ case QGtkWidget::gtk_popup: return gtk_window_new(GTK_WINDOW_POPUP);
+ CASE(gtk_notebook)
+ CASE(gtk_toolbar)
+ CASE(gtk_tree_view)
+ CASE(gtk_combo_box)
+ CASE(gtk_combo_box_text)
+ CASE(gtk_progress_bar)
+ CASE(gtk_fixed)
+ CASE(gtk_separator_menu_item)
+ CASE(gtk_offscreen_window)
+ case QGtkWidget::gtk_Default: return nullptr;
+ }
+#undef CASE
+#undef CASEN
+ Q_UNREACHABLE();
+}
+
+GdkRGBA QGtk3Interface::genericColor(GtkStyleContext *con, GtkStateFlags state, QGtkColorDefault def) const
+{
+ GdkRGBA color;
+
+#define CASE(def, call)\
+ case QGtkColorDefault::def:\
+ gtk_style_context_get_ ##call(con, state, &color);\
+ break;
+
+ switch (def) {
+ CASE(Foreground, color)
+ CASE(Background, background_color)
+ CASE(Border, border_color)
+ }
+ return color;
+#undef CASE
+}
+
+// Deliver a QColor from a GTK widget, a source type and a GTK widget state
+// Fall back to the generic color getter of source/state if the property name does not exist
+// Fall back to a hard coded generic color getter of source/state are not mapped
+QColor QGtk3Interface::color(GtkWidget *widget, QGtkColorSource source, GtkStateFlags state) const
+{
+ GdkRGBA col;
+ GtkStyleContext *con = context(widget);
+
+#define CASE(src, def)\
+ case QGtkColorSource::src: {\
+ const ColorKey key = ColorKey({QGtkColorSource::src, state});\
+ if (gtkColorMap.contains(key)) {\
+ const ColorValue val = gtkColorMap.value(key);\
+ if (!gtk_style_context_lookup_color(con, val.propertyName.toUtf8().constData(), &col)) {\
+ col = genericColor(con, state, val.genericSource);\
+ qCDebug(lcQGtk3Interface) << "Property name" << val.propertyName << "not found.\n"\
+ << "Falling back to " << val.genericSource;\
+ }\
+ } else {\
+ col = genericColor(con, state, QGtkColorDefault::def);\
+ qCDebug(lcQGtk3Interface) << "No color source found for" << QGtkColorSource::src\
+ << fromGtkState(state) << "\n Falling back to"\
+ << QGtkColorDefault::def;\
+ }\
+ }\
+ break;
+
+ switch (source) {
+ CASE(Foreground, Foreground)
+ CASE(Background, Background)
+ CASE(Text, Foreground)
+ CASE(Base, Background)
+ CASE(Border, Border)
+ }
+
+ return fromGdkColor(col);
+#undef CASE
+}
+
+// Deliver a widget pointer
+GtkWidget *QGtk3Interface::widget(QGtkWidget type) const
+{
+ if (type == QGtkWidget::gtk_Default)
+ return nullptr;
+
+ // Return from cache
+ if (GtkWidget *w = cache.value(type))
+ return w;
+
+ // Create new item and cache it
+ GtkWidget *w = qt_new_gtkWidget(type);
+ cache.insert(type, w);
+ return w;
+}
+
+// Return widget syle context or default style
+GtkStyleContext *QGtk3Interface::context(GtkWidget *w) const
+{
+ if (w)
+ return gtk_widget_get_style_context(w);
+
+ return gtk_widget_get_style_context(widget(QGtkWidget::gtk_entry));
+}
+
+// FIXME
+// Brush assets (e.g. 9-patches) can't be accessed by the GTK API.
+// => brush height and width from GTK will be ignored for the time being,
+// because it is unknown if they relate to a plain brush or an image brush.
+QBrush QGtk3Interface::brush(QGtkWidget wtype, QGtkColorSource source, GtkStateFlags state) const
+{
+ return QBrush(color(widget(wtype), source, state));
+}
+
+const QString QGtk3Interface::themeName() const
+{
+ gchar *theme_name;
+ GtkSettings *settings = gtk_settings_get_default();
+ if (!settings)
+ return QString();
+
+ g_object_get(settings, "gtk-theme-name", &theme_name, nullptr);
+ return QLatin1String(theme_name);
+}
+
+inline constexpr QGtk3Interface::QGtkWidget QGtk3Interface::toWidgetType(QPlatformTheme::Font type)
+{
+ switch (type) {
+ case QPlatformTheme::SystemFont: return QGtkWidget::gtk_Default;
+ case QPlatformTheme::MenuFont: return QGtkWidget::gtk_menu;
+ case QPlatformTheme::MenuBarFont: return QGtkWidget::gtk_menu_bar;
+ case QPlatformTheme::MenuItemFont: return QGtkWidget::gtk_menu;
+ case QPlatformTheme::MessageBoxFont: return QGtkWidget::gtk_popup;
+ case QPlatformTheme::LabelFont: return QGtkWidget::gtk_popup;
+ case QPlatformTheme::TipLabelFont: return QGtkWidget::gtk_Default;
+ case QPlatformTheme::StatusBarFont: return QGtkWidget::gtk_statusbar;
+ case QPlatformTheme::TitleBarFont: return QGtkWidget::gtk_Default;
+ case QPlatformTheme::MdiSubWindowTitleFont: return QGtkWidget::gtk_Default;
+ case QPlatformTheme::DockWidgetTitleFont: return QGtkWidget::gtk_Default;
+ case QPlatformTheme::PushButtonFont: return QGtkWidget::gtk_button;
+ case QPlatformTheme::CheckBoxFont: return QGtkWidget::gtk_check_button;
+ case QPlatformTheme::RadioButtonFont: return QGtkWidget::gtk_radio_button;
+ case QPlatformTheme::ToolButtonFont: return QGtkWidget::gtk_button;
+ case QPlatformTheme::ItemViewFont: return QGtkWidget::gtk_entry;
+ case QPlatformTheme::ListViewFont: return QGtkWidget::gtk_tree_view;
+ case QPlatformTheme::HeaderViewFont: return QGtkWidget::gtk_fixed;
+ case QPlatformTheme::ListBoxFont: return QGtkWidget::gtk_Default;
+ case QPlatformTheme::ComboMenuItemFont: return QGtkWidget::gtk_combo_box;
+ case QPlatformTheme::ComboLineEditFont: return QGtkWidget::gtk_combo_box_text;
+ case QPlatformTheme::SmallFont: return QGtkWidget::gtk_Default;
+ case QPlatformTheme::MiniFont: return QGtkWidget::gtk_Default;
+ case QPlatformTheme::FixedFont: return QGtkWidget::gtk_fixed;
+ case QPlatformTheme::GroupBoxTitleFont: return QGtkWidget::gtk_Default;
+ case QPlatformTheme::TabButtonFont: return QGtkWidget::gtk_button;
+ case QPlatformTheme::EditorFont: return QGtkWidget::gtk_entry;
+ case QPlatformTheme::NFonts: return QGtkWidget::gtk_Default;
+ }
+ Q_UNREACHABLE();
+}
+
+inline constexpr QFont::Style QGtk3Interface::toFontStyle(PangoStyle style)
+{
+ switch (style) {
+ case PANGO_STYLE_ITALIC: return QFont::StyleItalic;
+ case PANGO_STYLE_OBLIQUE: return QFont::StyleOblique;
+ case PANGO_STYLE_NORMAL: return QFont::StyleNormal;
+ }
+ // This is reached when GTK has introduced a new font style
+ Q_UNREACHABLE();
+}
+
+inline constexpr int QGtk3Interface::toFontWeight(PangoWeight weight)
+{
+ // GTK PangoWeight can be directly converted to QFont::Weight
+ // unless one of the enums changes.
+ static_assert(PANGO_WEIGHT_THIN == 100 && PANGO_WEIGHT_ULTRAHEAVY == 1000,
+ "Pango font weight enum changed. Fix conversion.");
+
+ return qBound(1, static_cast<int>(weight), 1000);
+}
+
+inline constexpr QFont::Weight QGtk3Interface::toQFontWeight(int weight)
+{
+ if (weight <= 100)
+ return QFont::Thin;
+ else if (weight <= 200)
+ return QFont::ExtraLight;
+ else if (weight <= 300)
+ return QFont::Light;
+ else if (weight <= 400)
+ return QFont::Normal;
+ else if (weight <= 500)
+ return QFont::Medium;
+ else if (weight <= 600)
+ return QFont::DemiBold;
+ else if (weight <= 700)
+ return QFont::Bold;
+ else if (weight <= 800)
+ return QFont::ExtraBold;
+ else
+ return QFont::Black;
+}
+
+QFont QGtk3Interface::font(QPlatformTheme::Font type) const
+{
+ GtkStyleContext *con = context(widget(toWidgetType(type)));
+ if (!con)
+ return QFont();
+
+ const PangoFontDescription *gtkFont = gtk_style_context_get_font(con, GTK_STATE_FLAG_NORMAL);
+ if (!gtkFont)
+ return QFont();
+
+ const QString family = QString::fromLatin1(pango_font_description_get_family(gtkFont));
+ if (family.isEmpty())
+ return QFont();
+
+ const int weight = toFontWeight(pango_font_description_get_weight(gtkFont));
+
+ // Creating a QFont() creates a futex lockup on a theme change
+ // QFont doesn't have a constructor with float point size
+ // => create a dummy point size and set it later.
+ QFont font(family, 1, toQFontWeight(weight));
+ font.setPointSizeF(static_cast<float>(pango_font_description_get_size(gtkFont)/PANGO_SCALE));
+ font.setStyle(toFontStyle(pango_font_description_get_style(gtkFont)));
+
+ // fix pixel pitch if fixed font is requested
+ // NOTE: GTK allows to specify a non fixed font as the system's fixed font.
+ // => the returned font may still not be a fixed font.
+ if (type == QPlatformTheme::FixedFont) {
+ font.setFixedPitch(true);
+ if (!QFontInfo(font).fixedPitch()) {
+ qCDebug(lcQGtk3Interface) << "No fixed pitch font found in font family"
+ << font.family() << ". falling back to a default"
+ << "fixed pitch font";
+ font.setFamily("monospace");
+ }
+ }
+ return font;
+}
+
+QIcon QGtk3Interface::fileIcon(const QFileInfo &fileInfo) const
+{
+ GFile *file = g_file_new_for_path(fileInfo.absoluteFilePath().toLatin1().constData());
+ if (!file)
+ return QIcon();
+
+ GFileInfo *info = g_file_query_info (file, G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
+ G_FILE_QUERY_INFO_NONE, nullptr, nullptr);
+ if (!info) {
+ g_object_unref(file);
+ return QIcon();
+ }
+
+ GIcon *icon = g_file_info_get_icon(info);
+ if (!icon) {
+ g_object_unref(file);
+ g_object_unref(info);
+ return QIcon();
+ }
+
+ GtkIconTheme *theme = gtk_icon_theme_get_default();
+ GtkIconInfo *iconInfo = gtk_icon_theme_lookup_by_gicon(theme, icon, GTK_ICON_SIZE_BUTTON,
+ GTK_ICON_LOOKUP_FORCE_SIZE);
+ if (!iconInfo) {
+ g_object_unref(file);
+ g_object_unref(info);
+ g_object_unref(icon);
+ return QIcon();
+ }
+
+ GdkPixbuf *buf = gtk_icon_info_load_icon(iconInfo, nullptr);
+ QImage image = qt_convert_gdk_pixbuf(buf);
+ g_object_unref(file);
+ g_object_unref(info);
+ g_object_unref(icon);
+ g_object_unref(buf);
+ return QIcon(QPixmap::fromImage(image));
+}
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platformthemes/gtk3/qgtk3interface_p.h b/src/plugins/platformthemes/gtk3/qgtk3interface_p.h
new file mode 100644
index 0000000000..8997a64e76
--- /dev/null
+++ b/src/plugins/platformthemes/gtk3/qgtk3interface_p.h
@@ -0,0 +1,170 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QGTK3INTERFACE_H
+#define QGTK3INTERFACE_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/QString>
+#include <QtCore/QLibrary>
+#include <QtCore/QCache>
+#include <private/qflatmap_p.h>
+#include <QtCore/QObject>
+#include <QtGui/QPalette>
+#include <QtWidgets/QWidget>
+#include <QtCore/QLoggingCategory>
+#include <QtGui/QPixmap>
+#include <qpa/qplatformtheme.h>
+
+#undef signals // Collides with GTK symbols
+#include <gtk/gtk.h>
+#include <gdk/gdk.h>
+#include <glib.h>
+
+QT_BEGIN_NAMESPACE
+
+Q_DECLARE_LOGGING_CATEGORY(lcQGtk3Interface);
+
+class QGtk3Storage;
+class QGtk3Interface
+{
+ Q_GADGET
+public:
+ QGtk3Interface(QGtk3Storage *);
+ ~QGtk3Interface();
+
+ // Enum representing GTK widget types
+ enum class QGtkWidget {
+ gtk_menu_bar,
+ gtk_menu,
+ gtk_button,
+ gtk_button_box,
+ gtk_check_button,
+ gtk_radio_button,
+ gtk_frame,
+ gtk_statusbar,
+ gtk_entry,
+ gtk_popup,
+ gtk_notebook,
+ gtk_toolbar,
+ gtk_tree_view,
+ gtk_combo_box,
+ gtk_combo_box_text,
+ gtk_progress_bar,
+ gtk_fixed,
+ gtk_separator_menu_item,
+ gtk_Default,
+ gtk_offscreen_window
+ };
+ Q_ENUM(QGtkWidget)
+
+ // Enum representing color sources of a GTK theme
+ enum class QGtkColorSource {
+ Foreground,
+ Background,
+ Text,
+ Base,
+ Border
+ };
+ Q_ENUM(QGtkColorSource)
+
+ // Enum for default color getter
+ enum class QGtkColorDefault {
+ Foreground,
+ Background,
+ Border
+ };
+ Q_ENUM(QGtkColorDefault)
+
+ // Create a brush from GTK widget type, color source and color state
+ QBrush brush(QGtkWidget wtype, QGtkColorSource source, GtkStateFlags state) const;
+
+ // Font & icon getters
+ QImage standardPixmap(QPlatformTheme::StandardPixmap standardPixmap) const;
+ QFont font(QPlatformTheme::Font type) const;
+ QIcon fileIcon(const QFileInfo &fileInfo) const;
+
+ // Return current GTK theme name
+ const QString themeName() const;
+
+ // Convert GTK state to/from string
+ static int toGtkState(const QString &state);
+ static const QLatin1String fromGtkState(GtkStateFlags state);
+
+private:
+
+ // Map colors to GTK property names and default to generic color getters
+ struct ColorKey {
+ QGtkColorSource colorSource = QGtkColorSource::Background;
+ GtkStateFlags state = GTK_STATE_FLAG_NORMAL;
+
+ // struct becomes key of a map, so operator< is needed
+ bool operator<(const ColorKey& other) const {
+ return std::tie(colorSource, state) <
+ std::tie(other.colorSource, other.state);
+ }
+
+ QDebug operator<<(QDebug dbg)
+ {
+ return dbg << "QGtk3Interface::ColorKey(colorSource=" << colorSource << ", GTK state=" << fromGtkState(state) << ")";
+ }
+ };
+
+ struct ColorValue {
+ QString propertyName = QString();
+ QGtkColorDefault genericSource = QGtkColorDefault::Background;
+
+ QDebug operator<<(QDebug dbg)
+ {
+ return dbg << "QGtk3Interface::ColorValue(propertyName=" << propertyName << ", genericSource=" << genericSource << ")";
+ }
+ };
+
+ typedef QFlatMap<ColorKey, ColorValue> ColorMap;
+ ColorMap gtkColorMap;
+ void initColorMap();
+
+ GdkRGBA genericColor(GtkStyleContext *con, GtkStateFlags state, QGtkColorDefault def) const;
+
+ // Cache for GTK widgets
+ mutable QFlatMap<QGtkWidget, GtkWidget *> cache;
+
+ // Converters for GTK icon and GDK pixbuf
+ QImage qt_gtk_get_icon(const char *iconName) const;
+ QImage qt_convert_gdk_pixbuf(GdkPixbuf *buf) const;
+
+ // Create new GTK widget object
+ GtkWidget *qt_new_gtkWidget(QGtkWidget type) const;
+
+ // Deliver GTK Widget from cache or create new
+ GtkWidget *widget(QGtkWidget type) const;
+
+ // Get a GTK widget's style context. Default settings style context if nullptr
+ GtkStyleContext *context(GtkWidget *widget = nullptr) const;
+
+ // Convert GTK color into QColor
+ static inline QColor fromGdkColor (const GdkRGBA &c)
+ { return QColor::fromRgbF(c.red, c.green, c.blue, c.alpha); }
+
+ // get a QColor of a GTK widget (default settings style if nullptr)
+ QColor color (GtkWidget *widget, QGtkColorSource source, GtkStateFlags state) const;
+
+ // Mappings for GTK fonts
+ inline static constexpr QGtkWidget toWidgetType(QPlatformTheme::Font);
+ inline static constexpr QFont::Style toFontStyle(PangoStyle style);
+ inline static constexpr int toFontWeight(PangoWeight weight);
+ inline static constexpr QFont::Weight toQFontWeight(int weight);
+
+};
+QT_END_NAMESPACE
+#endif // QGTK3INTERFACE_H
diff --git a/src/plugins/platformthemes/gtk3/qgtk3json.cpp b/src/plugins/platformthemes/gtk3/qgtk3json.cpp
new file mode 100644
index 0000000000..f4d5b50ec5
--- /dev/null
+++ b/src/plugins/platformthemes/gtk3/qgtk3json.cpp
@@ -0,0 +1,475 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qgtk3json_p.h"
+#include <QtCore/QFile>
+#include <QMetaEnum>
+
+QT_BEGIN_NAMESPACE
+
+QLatin1String QGtk3Json::fromPalette(QPlatformTheme::Palette palette)
+{
+ switch (palette) {
+ case QPlatformTheme::SystemPalette:
+ return QLatin1String("SystemPalette");
+ case QPlatformTheme::ToolTipPalette:
+ return QLatin1String("ToolTipPalette");
+ case QPlatformTheme::ToolButtonPalette:
+ return QLatin1String("ToolButtonPalette");
+ case QPlatformTheme::ButtonPalette:
+ return QLatin1String("ButtonPalette");
+ case QPlatformTheme::CheckBoxPalette:
+ return QLatin1String("CheckBoxPalette");
+ case QPlatformTheme::RadioButtonPalette:
+ return QLatin1String("RadioButtonPalette");
+ case QPlatformTheme::HeaderPalette:
+ return QLatin1String("HeaderPalette");
+ case QPlatformTheme::ComboBoxPalette:
+ return QLatin1String("ComboBoxPalette");
+ case QPlatformTheme::ItemViewPalette:
+ return QLatin1String("ItemViewPalette");
+ case QPlatformTheme::MessageBoxLabelPalette:
+ return QLatin1String("MessageBoxLabelPalette");
+ case QPlatformTheme::TabBarPalette:
+ return QLatin1String("TabBarPalette");
+ case QPlatformTheme::LabelPalette:
+ return QLatin1String("LabelPalette");
+ case QPlatformTheme::GroupBoxPalette:
+ return QLatin1String("GroupBoxPalette");
+ case QPlatformTheme::MenuPalette:
+ return QLatin1String("MenuPalette");
+ case QPlatformTheme::MenuBarPalette:
+ return QLatin1String("MenuBarPalette");
+ case QPlatformTheme::TextEditPalette:
+ return QLatin1String("TextEditPalette");
+ case QPlatformTheme::TextLineEditPalette:
+ return QLatin1String("TextLineEditPalette");
+ default:
+ return QLatin1String();
+ }
+ return QLatin1String();
+}
+
+QLatin1String QGtk3Json::fromGtkState(GtkStateFlags state)
+{
+ return QGtk3Interface::fromGtkState(state);
+}
+
+QLatin1String fromColor(const QColor &color)
+{
+ return QLatin1String(QByteArray(color.name(QColor::HexRgb).toLatin1()));
+}
+
+QLatin1String QGtk3Json::fromColorRole(QPalette::ColorRole role)
+{
+ return QLatin1String(QMetaEnum::fromType<QPalette::ColorRole>().valueToKey(static_cast<int>(role)));
+}
+
+QLatin1String QGtk3Json::fromColorGroup(QPalette::ColorGroup group)
+{
+ return QLatin1String(QMetaEnum::fromType<QPalette::ColorGroup>().valueToKey(static_cast<int>(group)));
+}
+
+QLatin1String QGtk3Json::fromGdkSource(QGtk3Interface::QGtkColorSource source)
+{
+ return QLatin1String(QMetaEnum::fromType<QGtk3Interface::QGtkColorSource>().valueToKey(static_cast<int>(source)));
+}
+
+QLatin1String QGtk3Json::fromWidgetType(QGtk3Interface::QGtkWidget widgetType)
+{
+ return QLatin1String(QMetaEnum::fromType<QGtk3Interface::QGtkWidget>().valueToKey(static_cast<int>(widgetType)));
+}
+
+QLatin1String QGtk3Json::fromAppearance(Qt::Appearance app)
+{
+ return QLatin1String(QMetaEnum::fromType<Qt::Appearance>().valueToKey(static_cast<int>(app)));
+}
+
+#define CONVERT(type, key, def)\
+ bool ok;\
+ const int intVal = QMetaEnum::fromType<type>().keyToValue(key.toLatin1().constData(), &ok);\
+ return ok ? static_cast<type>(intVal) : type::def
+
+Qt::Appearance QGtk3Json::toAppearance(const QString &appearance)
+{
+ CONVERT(Qt::Appearance, appearance, Unknown);
+}
+
+QPlatformTheme::Palette QGtk3Json::toPalette(const QString &palette)
+{
+ if (palette == QLatin1String("SystemPalette"))
+ return QPlatformTheme::SystemPalette;
+ else if (palette == QLatin1String("ToolTipPalette"))
+ return QPlatformTheme::ToolTipPalette;
+ else if (palette == QLatin1String("ToolButtonPalette"))
+ return QPlatformTheme::ToolButtonPalette;
+ else if (palette == QLatin1String("ButtonPalette"))
+ return QPlatformTheme::ButtonPalette;
+ else if (palette == QLatin1String("CheckBoxPalette"))
+ return QPlatformTheme::CheckBoxPalette;
+ else if (palette == QLatin1String("RadioButtonPalette"))
+ return QPlatformTheme::RadioButtonPalette;
+ else if (palette == QLatin1String("HeaderPalette"))
+ return QPlatformTheme::HeaderPalette;
+ else if (palette == QLatin1String("ComboBoxPalette"))
+ return QPlatformTheme::ComboBoxPalette;
+ else if (palette == QLatin1String("ItemViewPalette"))
+ return QPlatformTheme::ItemViewPalette;
+ else if (palette == QLatin1String("MessageBoxLabelPelette"))
+ return QPlatformTheme::MessageBoxLabelPelette;
+ else if (palette == QLatin1String("TabBarPalette"))
+ return QPlatformTheme::TabBarPalette;
+ else if (palette == QLatin1String("LabelPalette"))
+ return QPlatformTheme::LabelPalette;
+ else if (palette == QLatin1String("GroupBoxPalette"))
+ return QPlatformTheme::GroupBoxPalette;
+ else if (palette == QLatin1String("MenuPalette"))
+ return QPlatformTheme::MenuPalette;
+ else if (palette == QLatin1String("MenuBarPalette"))
+ return QPlatformTheme::MenuBarPalette;
+ else if (palette == QLatin1String("TextEditPalette"))
+ return QPlatformTheme::TextEditPalette;
+ else if (palette == QLatin1String("TextLineEditPalette"))
+ return QPlatformTheme::TextLineEditPalette;
+
+ return QPlatformTheme::NPalettes;
+}
+
+GtkStateFlags QGtk3Json::toGtkState(const QString &type)
+{
+ int i = QGtk3Interface::toGtkState(type);
+ if (i < 0)
+ return GTK_STATE_FLAG_NORMAL;
+ return static_cast<GtkStateFlags>(i);
+}
+
+QColor toColor(const QStringView &color)
+{
+ return QColor(color);
+}
+
+QPalette::ColorRole QGtk3Json::toColorRole(const QString &role)
+{
+ CONVERT(QPalette::ColorRole, role, NColorRoles);
+}
+
+QPalette::ColorGroup QGtk3Json::toColorGroup(const QString &group)
+{
+ CONVERT(QPalette::ColorGroup, group, NColorGroups);
+}
+
+QGtk3Interface::QGtkColorSource QGtk3Json::toGdkSource(const QString &source)
+{
+ CONVERT(QGtk3Interface::QGtkColorSource, source, Background);
+}
+
+QLatin1String QGtk3Json::fromSourceType(QGtk3Storage::SourceType sourceType)
+{
+ return QLatin1String(QMetaEnum::fromType<QGtk3Storage::SourceType>().valueToKey(static_cast<int>(sourceType)));
+}
+
+QGtk3Storage::SourceType QGtk3Json::toSourceType(const QString &sourceType)
+{
+ CONVERT(QGtk3Storage::SourceType, sourceType, Invalid);
+}
+
+QGtk3Interface::QGtkWidget QGtk3Json::toWidgetType(const QString &widgetType)
+{
+ CONVERT(QGtk3Interface::QGtkWidget, widgetType, gtk_offscreen_window);
+}
+
+#undef CONVERT
+
+bool QGtk3Json::save(const QGtk3Storage::PaletteMap &map, const QString &fileName,
+ QJsonDocument::JsonFormat format)
+{
+ QJsonDocument doc = save(map);
+ if (doc.isEmpty()) {
+ qWarning() << "Nothing to save to" << fileName;
+ return false;
+ }
+
+ QFile file(fileName);
+ if (!file.open(QIODevice::WriteOnly)) {
+ qWarning() << "Unable to open file" << fileName << "for writing.";
+ return false;
+ }
+
+ if (!file.write(doc.toJson(format))) {
+ qWarning() << "Unable to serialize Json document.";
+ return false;
+ }
+
+ file.close();
+ qInfo() << "Saved mapping data to" << fileName;
+ return true;
+}
+
+const QJsonDocument QGtk3Json::save(const QGtk3Storage::PaletteMap &map)
+{
+ QJsonObject paletteObject;
+ for (auto paletteIterator = map.constBegin(); paletteIterator != map.constEnd();
+ ++paletteIterator) {
+ const QGtk3Storage::BrushMap &bm = paletteIterator.value();
+ QFlatMap<QPalette::ColorRole, QGtk3Storage::BrushMap> brushMaps;
+ for (auto brushIterator = bm.constBegin(); brushIterator != bm.constEnd();
+ ++brushIterator) {
+ const QPalette::ColorRole role = brushIterator.key().colorRole;
+ if (brushMaps.contains(role)) {
+ brushMaps.value(role).insert(brushIterator.key(), brushIterator.value());
+ } else {
+ QGtk3Storage::BrushMap newMap;
+ newMap.insert(brushIterator.key(), brushIterator.value());
+ brushMaps.insert(role, newMap);
+ }
+ }
+
+ QJsonObject brushArrayObject;
+ for (auto brushMapIterator = brushMaps.constBegin();
+ brushMapIterator != brushMaps.constEnd(); ++brushMapIterator) {
+
+ QJsonArray brushArray;
+ int brushIndex = 0;
+ const QGtk3Storage::BrushMap &bm = brushMapIterator.value();
+ for (auto brushIterator = bm.constBegin(); brushIterator != bm.constEnd();
+ ++brushIterator) {
+ QJsonObject brushObject;
+ const QGtk3Storage::TargetBrush tb = brushIterator.key();
+ QGtk3Storage::Source s = brushIterator.value();
+ brushObject.insert(ceColorGroup, fromColorGroup(tb.colorGroup));
+ brushObject.insert(ceAppearance, fromAppearance(tb.appearance));
+ brushObject.insert(ceSourceType, fromSourceType(s.sourceType));
+
+ QJsonObject sourceObject;
+ switch (s.sourceType) {
+ case QGtk3Storage::SourceType::Gtk: {
+ sourceObject.insert(ceGtkWidget, fromWidgetType(s.gtk3.gtkWidgetType));
+ sourceObject.insert(ceGdkSource, fromGdkSource(s.gtk3.source));
+ sourceObject.insert(ceGtkState, fromGtkState(s.gtk3.state));
+ sourceObject.insert(ceWidth, s.gtk3.width);
+ sourceObject.insert(ceHeight, s.gtk3.height);
+ }
+ break;
+
+ case QGtk3Storage::SourceType::Fixed: {
+ QJsonObject fixedObject;
+ fixedObject.insert(ceColor, s.fix.fixedBrush.color().name());
+ fixedObject.insert(ceWidth, s.fix.fixedBrush.texture().width());
+ fixedObject.insert(ceHeight, s.fix.fixedBrush.texture().height());
+ sourceObject.insert(ceBrush, fixedObject);
+ }
+ break;
+
+ case QGtk3Storage::SourceType::Modified:{
+ sourceObject.insert(ceColorGroup, fromColorGroup(s.rec.colorGroup));
+ sourceObject.insert(ceColorRole, fromColorRole(s.rec.colorRole));
+ sourceObject.insert(ceAppearance, fromAppearance(s.rec.appearance));
+ sourceObject.insert(ceRed, s.rec.deltaRed);
+ sourceObject.insert(ceGreen, s.rec.deltaGreen);
+ sourceObject.insert(ceBlue, s.rec.deltaBlue);
+ sourceObject.insert(ceWidth, s.rec.width);
+ sourceObject.insert(ceHeight, s.rec.height);
+ sourceObject.insert(ceLighter, s.rec.lighter);
+ }
+ break;
+
+ case QGtk3Storage::SourceType::Invalid:
+ break;
+ }
+
+ brushObject.insert(ceData, sourceObject);
+ brushArray.insert(brushIndex, brushObject);
+ ++brushIndex;
+ }
+ brushArrayObject.insert(fromColorRole(brushMapIterator.key()), brushArray);
+ }
+ paletteObject.insert(fromPalette(paletteIterator.key()), brushArrayObject);
+ }
+
+ QJsonObject top;
+ top.insert(cePalettes, paletteObject);
+ return paletteObject.keys().isEmpty() ? QJsonDocument() : QJsonDocument(top);
+}
+
+bool QGtk3Json::load(QGtk3Storage::PaletteMap &map, const QString &fileName)
+{
+ QFile file(fileName);
+ if (!file.open(QIODevice::ReadOnly)) {
+ qCWarning(lcQGtk3Interface) << "Unable to open file:" << fileName;
+ return false;
+ }
+
+ QJsonParseError err;
+ QJsonDocument doc = QJsonDocument::fromJson(file.readAll(), &err);
+ if (err.error != QJsonParseError::NoError) {
+ qWarning(lcQGtk3Interface) << "Unable to parse Json document from" << fileName
+ << err.error << err.errorString();
+ return false;
+ }
+
+ if (Q_LIKELY(load(map, doc))) {
+ qInfo() << "GTK mapping successfully imported from" << fileName;
+ return true;
+ }
+
+ qWarning() << "File" << fileName << "could not be loaded.";
+ return false;
+}
+
+bool QGtk3Json::load(QGtk3Storage::PaletteMap &map, const QJsonDocument &doc)
+{
+#define GETSTR(obj, key)\
+ if (!obj.contains(key)) {\
+ qCDebug(lcQGtk3Interface) << key << "missing for palette" << paletteName\
+ << ", Brush" << colorRoleName;\
+ return false;\
+ }\
+ value = obj[key].toString()
+
+#define GETINT(obj, key, var) GETSTR(obj, key);\
+ if (!obj[key].isDouble()) {\
+ qCDebug(lcQGtk3Interface) << key << "type mismatch" << value\
+ << "is not an integer!"\
+ << "(Palette" << paletteName << "), Brush" << colorRoleName;\
+ return false;\
+ }\
+ const int var = obj[key].toInt()
+
+ map.clear();
+ const QJsonObject top(doc.object());
+ if (doc.isEmpty() || top.isEmpty() || !top.contains(cePalettes)) {
+ qCDebug(lcQGtk3Interface) << "Document does not contain Palettes.";
+ return false;
+ }
+
+ const QStringList &paletteList = top[cePalettes].toObject().keys();
+ for (const QString &paletteName : paletteList) {
+ bool ok;
+ const QPlatformTheme::Palette paletteType = toPalette(paletteName);
+ if (paletteType == QPlatformTheme::NPalettes) {
+ qCDebug(lcQGtk3Interface) << "Invalid Palette name:" << paletteName;
+ return false;
+ }
+ const QJsonObject &paletteObject = top[cePalettes][paletteName].toObject();
+ const QStringList &brushList = paletteObject.keys();
+ if (brushList.isEmpty()) {
+ qCDebug(lcQGtk3Interface) << "Palette" << paletteName << "does not contain brushes";
+ return false;
+ }
+
+ QGtk3Storage::BrushMap brushes;
+ const QStringList &colorRoles = paletteObject.keys();
+ for (const QString &colorRoleName : colorRoles) {
+ const int intVal = QMetaEnum::fromType<QPalette::ColorRole>().keyToValue(colorRoleName
+ .toLatin1().constData(), &ok);
+ if (!ok) {
+ qCDebug(lcQGtk3Interface) << "Palette" << paletteName
+ << "contains invalid color role" << colorRoleName;
+ return false;
+ }
+ const QPalette::ColorRole colorRole = static_cast<QPalette::ColorRole>(intVal);
+ const QJsonArray &brushArray = paletteObject[colorRoleName].toArray();
+ for (int brushIndex = 0; brushIndex < brushArray.size(); ++brushIndex) {
+ const QJsonObject brushObject = brushArray.at(brushIndex).toObject();
+ if (brushObject.isEmpty()) {
+ qCDebug(lcQGtk3Interface) << "Brush specification missing at for palette"
+ << paletteName << ", Brush" << colorRoleName;
+ return false;
+ }
+
+ QString value;
+ GETSTR(brushObject, ceSourceType);
+ const QGtk3Storage::SourceType sourceType = toSourceType(value);
+ GETSTR(brushObject, ceColorGroup);
+ const QPalette::ColorGroup colorGroup = toColorGroup(value);
+ GETSTR(brushObject, ceAppearance);
+ const Qt::Appearance appearance = toAppearance(value);
+ QGtk3Storage::TargetBrush tb(colorGroup, colorRole, appearance);
+ QGtk3Storage::Source s;
+
+ if (!brushObject.contains(ceData) || !brushObject[ceData].isObject()) {
+ qCDebug(lcQGtk3Interface) << "Source specification missing for palette" << paletteName
+ << "Brush" << colorRoleName;
+ return false;
+ }
+ const QJsonObject &sourceObject = brushObject[ceData].toObject();
+
+ switch (sourceType) {
+ case QGtk3Storage::SourceType::Gtk: {
+ GETSTR(sourceObject, ceGdkSource);
+ const QGtk3Interface::QGtkColorSource gtkSource = toGdkSource(value);
+ GETSTR(sourceObject, ceGtkState);
+ const GtkStateFlags gtkState = toGtkState(value);
+ GETSTR(sourceObject, ceGtkWidget);
+ const QGtk3Interface::QGtkWidget widgetType = toWidgetType(value);
+ GETINT(sourceObject, ceHeight, height);
+ GETINT(sourceObject, ceWidth, width);
+ s = QGtk3Storage::Source(widgetType, gtkSource, gtkState, width, height);
+ }
+ break;
+
+ case QGtk3Storage::SourceType::Fixed: {
+ if (!sourceObject.contains(ceBrush)) {
+ qCDebug(lcQGtk3Interface) << "Fixed brush specification missing for palette" << paletteName
+ << "Brush" << colorRoleName;
+ return false;
+ }
+ const QJsonObject &fixedSource = sourceObject[ceBrush].toObject();
+ GETINT(fixedSource, ceWidth, width);
+ GETINT(fixedSource, ceHeight, height);
+ GETSTR(fixedSource, ceColor);
+ const QColor color(value);
+ if (!color.isValid()) {
+ qCDebug(lcQGtk3Interface) << "Color" << value << "can't be parsed for:" << paletteName
+ << "Brush" << colorRoleName;
+ return false;
+ }
+ const QBrush fixedBrush = (width < 0 && height < 0)
+ ? QBrush(color, QPixmap(width, height))
+ : QBrush(color);
+ s = QGtk3Storage::Source(fixedBrush);
+ }
+ break;
+
+ case QGtk3Storage::SourceType::Modified: {
+ GETSTR(sourceObject, ceColorGroup);
+ const QPalette::ColorGroup colorGroup = toColorGroup(value);
+ GETSTR(sourceObject, ceColorRole);
+ const QPalette::ColorRole colorRole = toColorRole(value);
+ GETSTR(sourceObject, ceAppearance);
+ const Qt::Appearance appearance = toAppearance(value);
+ GETINT(sourceObject, ceLighter, lighter);
+ GETINT(sourceObject, ceRed, red);
+ GETINT(sourceObject, ceBlue, blue);
+ GETINT(sourceObject, ceGreen, green);
+ s = QGtk3Storage::Source(colorGroup, colorRole, appearance,
+ lighter, red, green, blue);
+ }
+ break;
+
+ case QGtk3Storage::SourceType::Invalid:
+ qCDebug(lcQGtk3Interface) << "Invalid source type for palette" << paletteName
+ << "Brush." << colorRoleName;
+ return false;
+ }
+ brushes.insert(tb, s);
+ }
+ }
+ map.insert(paletteType, brushes);
+ }
+ return true;
+}
+
+QT_END_NAMESPACE
+
diff --git a/src/plugins/platformthemes/gtk3/qgtk3json_p.h b/src/plugins/platformthemes/gtk3/qgtk3json_p.h
new file mode 100644
index 0000000000..b3680eb7dc
--- /dev/null
+++ b/src/plugins/platformthemes/gtk3/qgtk3json_p.h
@@ -0,0 +1,102 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+#ifndef QGTK3JSON_P_H
+#define QGTK3JSON_P_H
+
+#include <QtCore/QCache>
+#include <QtCore/QJsonArray>
+#include <QtCore/QJsonDocument>
+#include <QtCore/QJsonObject>
+#include <QtCore/QMap>
+#include <QtCore/QString>
+#include <QtGui/QGuiApplication>
+#include <QtGui/QPalette>
+
+#include <qpa/qplatformtheme.h>
+#include "qgtk3interface_p.h"
+#include "qgtk3storage_p.h"
+
+#undef signals // Collides with GTK symbols
+#include <gtk/gtk.h>
+#include <gdk/gdk.h>
+#include <glib.h>
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+QT_BEGIN_NAMESPACE
+
+class QGtk3Json
+{
+ Q_GADGET
+private:
+ QGtk3Json(){};
+
+public:
+ // Convert enums to strings
+ static QLatin1String fromPalette(QPlatformTheme::Palette palette);
+ static QLatin1String fromGtkState(GtkStateFlags type);
+ static QLatin1String fromColor(const QColor &Color);
+ static QLatin1String fromColorRole(QPalette::ColorRole role);
+ static QLatin1String fromColorGroup(QPalette::ColorGroup group);
+ static QLatin1String fromGdkSource(QGtk3Interface::QGtkColorSource source);
+ static QLatin1String fromSourceType(QGtk3Storage::SourceType sourceType);
+ static QLatin1String fromWidgetType(QGtk3Interface::QGtkWidget widgetType);
+ static QLatin1String fromAppearance(Qt::Appearance app);
+
+ // Convert strings to enums
+ static QPlatformTheme::Palette toPalette(const QString &palette);
+ static GtkStateFlags toGtkState(const QString &type);
+ static QColor toColor(const QString &Color);
+ static QPalette::ColorRole toColorRole(const QString &role);
+ static QPalette::ColorGroup toColorGroup(const QString &group);
+ static QGtk3Interface::QGtkColorSource toGdkSource(const QString &source);
+ static QGtk3Storage::SourceType toSourceType(const QString &sourceType);
+ static QGtk3Interface::QGtkWidget toWidgetType(const QString &widgetType);
+ static Qt::Appearance toAppearance(const QString &appearance);
+
+ // Json keys
+ static constexpr QStringView cePalettes = u"QtGtk3Palettes";
+ static constexpr QStringView cePalette = u"PaletteType";
+ static constexpr QStringView ceGtkState = u"GtkStateType";
+ static constexpr QStringView ceGtkWidget = u"GtkWidgetType";
+ static constexpr QStringView ceColor = u"Color";
+ static constexpr QStringView ceColorRole = u"ColorRole";
+ static constexpr QStringView ceColorGroup = u"ColorGroup";
+ static constexpr QStringView ceGdkSource = u"GdkSource";
+ static constexpr QStringView ceSourceType = u"SourceType";
+ static constexpr QStringView ceLighter = u"Lighter";
+ static constexpr QStringView ceRed = u"DeltaRed";
+ static constexpr QStringView ceGreen = u"DeltaGreen";
+ static constexpr QStringView ceBlue = u"DeltaBlue";
+ static constexpr QStringView ceWidth = u"Width";
+ static constexpr QStringView ceHeight = u"Height";
+ static constexpr QStringView ceBrush = u"FixedBrush";
+ static constexpr QStringView ceData = u"SourceData";
+ static constexpr QStringView ceBrushes = u"Brushes";
+ static constexpr QStringView ceAppearance = u"Appearance";
+
+ // Save to a file
+ static bool save(const QGtk3Storage::PaletteMap &map, const QString &fileName,
+ QJsonDocument::JsonFormat format = QJsonDocument::Indented);
+
+ // Save to a Json document
+ static const QJsonDocument save(const QGtk3Storage::PaletteMap &map);
+
+ // Load from a file
+ static bool load(QGtk3Storage::PaletteMap &map, const QString &fileName);
+
+ // Load from a Json document
+ static bool load(QGtk3Storage::PaletteMap &map, const QJsonDocument &doc);
+};
+
+QT_END_NAMESPACE
+#endif // QGTK3JSON_P_H
diff --git a/src/plugins/platformthemes/gtk3/qgtk3storage.cpp b/src/plugins/platformthemes/gtk3/qgtk3storage.cpp
new file mode 100644
index 0000000000..0a1fa6ef97
--- /dev/null
+++ b/src/plugins/platformthemes/gtk3/qgtk3storage.cpp
@@ -0,0 +1,470 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qgtk3json_p.h"
+#include "qgtk3storage_p.h"
+#include <qpa/qwindowsysteminterface.h>
+
+QT_BEGIN_NAMESPACE
+
+QGtk3Storage::QGtk3Storage()
+{
+ m_interface.reset(new QGtk3Interface(this));
+ populateMap();
+}
+
+// Set a brush from a source and resolve recursions
+QBrush QGtk3Storage::brush(const Source &source, const BrushMap &map) const
+{
+ switch (source.sourceType) {
+ case SourceType::Gtk:
+ return m_interface ? QBrush(m_interface->brush(source.gtk3.gtkWidgetType,
+ source.gtk3.source, source.gtk3.state))
+ : QBrush();
+
+ case SourceType::Modified: {
+ // don't loop through modified sources, break if modified source not found
+ Source recSource = brush(TargetBrush(source.rec.colorGroup, source.rec.colorRole,
+ source.rec.appearance), map);
+
+ if (!recSource.isValid() || (recSource.sourceType == SourceType::Modified))
+ return QBrush();
+
+ // Set brush and alter color
+ QBrush b = brush(recSource, map);
+ if (source.rec.width > 0 && source.rec.height > 0)
+ b.setTexture(QPixmap(source.rec.width, source.rec.height));
+ QColor c = b.color().lighter(source.rec.lighter);
+ c = QColor((c.red() + source.rec.deltaRed),
+ (c.green() + source.rec.deltaGreen),
+ (c.blue() + source.rec.deltaBlue));
+ b.setColor(c);
+ return b;
+ }
+
+ case SourceType::Fixed:
+ return source.fix.fixedBrush;
+
+ case SourceType::Invalid:
+ return QBrush();
+ }
+
+ // needed because of the scope after recursive
+ Q_UNREACHABLE();
+}
+
+// Find source for a recursion and take dark/light/unknown into consideration
+QGtk3Storage::Source QGtk3Storage::brush(const TargetBrush &b, const BrushMap &map) const
+{
+#define FIND(brush) if (map.contains(brush))\
+ return map.value(brush)
+
+ // Return exact match
+ FIND(b);
+
+ // unknown appearance can find anything
+ if (b.appearance == Qt::Appearance::Unknown) {
+ FIND(TargetBrush(b, Qt::Appearance::Dark));
+ FIND(TargetBrush(b, Qt::Appearance::Light));
+ }
+
+ // Color group All can always be found
+ if (b.colorGroup != QPalette::All)
+ return brush(TargetBrush(QPalette::All, b.colorRole, b.appearance), map);
+
+ // Brush not found
+ return Source();
+#undef FIND
+}
+
+// Create a simple standard palette
+QPalette QGtk3Storage::standardPalette()
+{
+ QColor backgroundColor(0xd4, 0xd0, 0xc8);
+ QColor lightColor(backgroundColor.lighter());
+ QColor darkColor(backgroundColor.darker());
+ const QBrush darkBrush(darkColor);
+ QColor midColor(Qt::gray);
+ QPalette palette(Qt::black, backgroundColor, lightColor, darkColor,
+ midColor, Qt::black, Qt::white);
+ palette.setBrush(QPalette::Disabled, QPalette::WindowText, darkBrush);
+ palette.setBrush(QPalette::Disabled, QPalette::Text, darkBrush);
+ palette.setBrush(QPalette::Disabled, QPalette::ButtonText, darkBrush);
+ palette.setBrush(QPalette::Disabled, QPalette::Base, QBrush(backgroundColor));
+ return palette;
+}
+
+// Deliver a palette styled according to the current GTK Theme
+const QPalette *QGtk3Storage::palette(QPlatformTheme::Palette type) const
+{
+ if (type >= QPlatformTheme::NPalettes)
+ return nullptr;
+
+ if (m_paletteCache[type].has_value()) {
+ qCDebug(lcQGtk3Interface) << "Returning palette from cache:"
+ << QGtk3Json::fromPalette(type);
+
+ return &m_paletteCache[type].value();
+ }
+
+ // Read system palette as a baseline first
+ if (!m_paletteCache[QPlatformTheme::SystemPalette].has_value() && type != QPlatformTheme::SystemPalette)
+ palette();
+
+ // Fall back to system palette for unknown types
+ if (!m_palettes.contains(type) && type != QPlatformTheme::SystemPalette) {
+ qCDebug(lcQGtk3Interface) << "Returning system palette for unknown type"
+ << QGtk3Json::fromPalette(type);
+ return palette();
+ }
+
+ BrushMap brushes = m_palettes.value(type);
+
+ // Standard palette is base for system palette. System palette is base for all others.
+ QPalette p = QPalette( type == QPlatformTheme::SystemPalette ? standardPalette()
+ : m_paletteCache[QPlatformTheme::SystemPalette].value());
+
+ qCDebug(lcQGtk3Interface) << "Creating palette:" << QGtk3Json::fromPalette(type);
+ for (auto i = brushes.begin(); i != brushes.end(); ++i) {
+ Source source = i.value();
+
+ // Brush is set if
+ // - theme and source appearance match
+ // - or either of them is unknown
+ const auto appSource = i.key().appearance;
+ const auto appTheme = appearance();
+ const bool setBrush = (appSource == appTheme) ||
+ (appSource == Qt::Appearance::Unknown) ||
+ (appTheme == Qt::Appearance::Unknown);
+
+ if (setBrush) {
+ p.setBrush(i.key().colorGroup, i.key().colorRole, brush(source, brushes));
+ }
+ }
+
+ m_paletteCache[type].emplace(p);
+ if (type == QPlatformTheme::SystemPalette)
+ qCDebug(lcQGtk3Interface) << "System Palette defined" << themeName() << appearance() << p;
+
+ return &m_paletteCache[type].value();
+}
+
+const QFont *QGtk3Storage::font(QPlatformTheme::Font type) const
+{
+ if (m_fontCache[type].has_value())
+ return &m_fontCache[type].value();
+
+ m_fontCache[type].emplace(m_interface->font(type));
+ return &m_fontCache[type].value();
+}
+
+QPixmap QGtk3Storage::standardPixmap(QPlatformTheme::StandardPixmap standardPixmap,
+ const QSizeF &size) const
+{
+ if (m_pixmapCache.contains(standardPixmap))
+ return QPixmap::fromImage(m_pixmapCache.object(standardPixmap)->scaled(size.toSize()));
+
+ if (!m_interface)
+ return QPixmap();
+
+ QImage image = m_interface->standardPixmap(standardPixmap);
+ if (image.isNull())
+ return QPixmap();
+
+ m_pixmapCache.insert(standardPixmap, new QImage(image));
+ return QPixmap::fromImage(image.scaled(size.toSize()));
+}
+
+QIcon QGtk3Storage::fileIcon(const QFileInfo &fileInfo) const
+{
+ return m_interface ? m_interface->fileIcon(fileInfo) : QIcon();
+}
+
+void QGtk3Storage::clear()
+{
+ m_appearance = Qt::Appearance::Unknown;
+ m_palettes.clear();
+ for (auto &cache : m_paletteCache)
+ cache.reset();
+
+ for (auto &cache : m_fontCache)
+ cache.reset();
+}
+
+void QGtk3Storage::handleThemeChange()
+{
+ clear();
+ populateMap();
+ QWindowSystemInterface::handleThemeChange(nullptr);
+}
+
+void QGtk3Storage::populateMap()
+{
+ static QString m_themeName;
+
+ // Distiguish initialization, theme change or call without theme change
+ const QString newThemeName = themeName();
+ if (m_themeName == newThemeName)
+ return;
+
+ clear();
+
+ // Derive appearance from theme name
+ m_appearance = newThemeName.contains("dark", Qt::CaseInsensitive)
+ ? Qt::Appearance::Dark : Qt::Appearance::Light;
+
+ if (m_themeName.isEmpty()) {
+ qCDebug(lcQGtk3Interface) << "GTK theme initialized:" << newThemeName << m_appearance;
+ } else {
+ qCDebug(lcQGtk3Interface) << "GTK theme changed to:" << newThemeName << m_appearance;
+ }
+ m_themeName = newThemeName;
+
+ // create standard mapping or load from Json file?
+ const QString jsonInput = qEnvironmentVariable("QT_GUI_GTK_JSON");
+ if (!jsonInput.isEmpty()) {
+ if (load(jsonInput)) {
+ return;
+ } else {
+ qWarning() << "Falling back to standard GTK mapping.";
+ }
+ }
+
+ createMapping();
+
+ const QString jsonOutput = qEnvironmentVariable("QT_GUI_GTK_JSON_SAVE");
+ if (!jsonOutput.isEmpty() && !save(jsonOutput))
+ qWarning() << "File" << jsonOutput << "could not be saved.\n";
+}
+
+const QGtk3Storage::PaletteMap QGtk3Storage::savePalettes() const
+{
+ const QString hard = qEnvironmentVariable("QT_GUI_GTK_JSON_HARDCODED");
+ if (!hard.contains("true", Qt::CaseInsensitive))
+ return m_palettes;
+
+ // Json output is supposed to be readable without GTK connection
+ // convert palette map into hard coded brushes
+ PaletteMap map = m_palettes;
+ for (auto paletteIterator = map.begin(); paletteIterator != map.end();
+ ++paletteIterator) {
+ QGtk3Storage::BrushMap &bm = paletteIterator.value();
+ for (auto brushIterator = bm.begin(); brushIterator != bm.end();
+ ++brushIterator) {
+ QGtk3Storage::Source &s = brushIterator.value();
+ switch (s.sourceType) {
+
+ // Read the brush and convert it into a fixed brush
+ case SourceType::Gtk: {
+ const QBrush fixedBrush = brush(s, bm);
+ s.fix.fixedBrush = fixedBrush;
+ s.sourceType = SourceType::Fixed;
+ }
+ break;
+ case SourceType::Fixed:
+ case SourceType::Modified:
+ case SourceType::Invalid:
+ break;
+ }
+ }
+ }
+ return map;
+}
+
+bool QGtk3Storage::save(const QString &filename, QJsonDocument::JsonFormat f) const
+{
+ return QGtk3Json::save(savePalettes(), filename, f);
+}
+
+QJsonDocument QGtk3Storage::save() const
+{
+ return QGtk3Json::save(savePalettes());
+}
+
+bool QGtk3Storage::load(const QString &filename)
+{
+ return QGtk3Json::load(m_palettes, filename);
+}
+
+void QGtk3Storage::createMapping()
+{
+ // Hard code standard mapping
+ BrushMap map;
+ Source source;
+
+ // Define a GTK source
+#define GTK(wtype, colorSource, state)\
+ source = Source(QGtk3Interface::QGtkWidget::gtk_ ##wtype,\
+ QGtk3Interface::QGtkColorSource::colorSource, GTK_STATE_FLAG_ ##state)
+
+ // Define a modified source
+#define LIGHTER(group, role, lighter)\
+ source = Source(QPalette::group, QPalette::role,\
+ Qt::Appearance::Unknown, lighter)
+#define MODIFY(group, role, red, green, blue)\
+ source = Source(QPalette::group, QPalette::role,\
+ Qt::Appearance::Unknown, red, green, blue)
+
+ // Define fixed source
+#define FIX(color) source = FixedSource(color);
+
+ // Add the source to a target brush
+ // Use default Qt::Appearance::Unknown, if no appearance was specified
+#define ADD_2(group, role) map.insert(TargetBrush(QPalette::group, QPalette::role), source);
+#define ADD_3(group, role, app) map.insert(TargetBrush(QPalette::group, QPalette::role,\
+ Qt::Appearance::app), source);
+#define ADD_X(x, group, role, app, FUNC, ...) FUNC
+#define ADD(...) ADD_X(,##__VA_ARGS__, ADD_3(__VA_ARGS__), ADD_2(__VA_ARGS__))
+ // Save target brushes to a palette type
+#define SAVE(palette) m_palettes.insert(QPlatformTheme::palette, map)
+ // Clear brushes to start next palette
+#define CLEAR map.clear()
+
+ /*
+ * Macro ussage:
+ *
+ * 1. Define a source
+ *
+ * GTK(QGtkWidget, QGtkColorSource, GTK_STATE_FLAG)
+ * Fetch the color from a GtkWidget, related to a source and a state.
+ *
+ * LIGHTER(ColorGroup, ColorROle, lighter)
+ * Use a color of the same QPalette related to ColorGroup and ColorRole.
+ * Make the color lighter (if lighter >100) or darker (if lighter < 100)
+ *
+ * MODIFY(ColorGroup, ColorRole, red, green, blue)
+ * Use a color of the same QPalette related to ColorGroup and ColorRole.
+ * Modify it by adding red, green, blue.
+ *
+ * FIX(const QBrush &)
+ * Use a fixed brush without querying GTK
+ *
+ * 2. Define the target
+ *
+ * Use ADD(ColorGroup, ColorRole) to use the defined source for the
+ * color group / role in the current palette.
+ *
+ * Use ADD(ColorGroup, ColorRole, Appearance) to use the defined source
+ * only for a specific appearance
+ *
+ * 3. Save mapping
+ * Save the defined mappings for a specific palette.
+ * If a mapping entry does not cover all color groups and roles of a palette,
+ * the system palette will be used for the remaining values.
+ * If the system palette does not have all combination of color groups and roles,
+ * the remaining ones will be populated by a hard coded fusion-style like palette.
+ *
+ * 4. Clear mapping
+ * Use CLEAR to clear the mapping and begin a new one.
+ */
+
+
+ // System palette
+ // background color and calculate derivates
+ GTK(Default, Background, INSENSITIVE);
+ ADD(Normal, Window);
+ ADD(Normal, Button);
+ ADD(Normal, Base);
+ ADD(Inactive, Base);
+ ADD(Normal, Window); // redundant
+ ADD(Inactive, Window);
+ LIGHTER(Normal, Window, 125);
+ ADD(Normal, Light);
+ LIGHTER(Normal, Window, 70);
+ ADD(Normal, Shadow);
+ LIGHTER(Normal, Window, 80);
+ ADD(Normal, Dark);
+ GTK(button, Foreground, ACTIVE);
+ ADD(Normal, WindowText);
+ ADD(Inactive, WindowText);
+ LIGHTER(Normal, WindowText, 50);
+ ADD(Disabled, Text);
+ ADD(Disabled, WindowText);
+ //ADD(Normal, ButtonText);
+ ADD(Inactive, ButtonText);
+ GTK(button, Text, NORMAL);
+ ADD(Disabled, ButtonText);
+ // special background colors
+ GTK(Default, Background, SELECTED);
+ ADD(Disabled, Highlight);
+ ADD(Normal, Highlight);
+ GTK(entry, Foreground, SELECTED);
+ ADD(Normal, HighlightedText);
+ GTK(entry, Background, ACTIVE);
+ ADD(Inactive, HighlightedText);
+ // text color and friends
+ GTK(entry, Text, NORMAL);
+ ADD(Normal, ButtonText);
+ ADD(Normal, WindowText);
+ ADD(Disabled, WindowText);
+ ADD(Disabled, HighlightedText);
+ GTK(Default, Text, NORMAL);
+ ADD(Normal, Text);
+ ADD(Inactive, Text);
+ ADD(Normal, HighlightedText);
+ LIGHTER(Normal, Base, 93);
+ ADD(All, AlternateBase);
+ GTK(Default, Foreground, NORMAL);
+ ADD(All, ToolTipText);
+ MODIFY(Normal, Text, 100, 100, 100);
+ ADD(All, PlaceholderText, Light);
+ MODIFY(Normal, Text, -100, -100, -100);
+ ADD(All, PlaceholderText, Dark);
+ SAVE(SystemPalette);
+ CLEAR;
+
+ // Checkbox and Radio Button
+ GTK(button, Text, ACTIVE);
+ ADD(Normal, Base, Dark);
+ GTK(button, Text, NORMAL);
+ ADD(Normal, Base, Light);
+ SAVE(CheckBoxPalette);
+ SAVE(RadioButtonPalette);
+ CLEAR;
+
+ // ComboBox, GroupBox, Frame
+ GTK(combo_box, Text, NORMAL);
+ ADD(Normal, ButtonText, Dark);
+ ADD(Normal, Text, Dark);
+ GTK(combo_box, Text, ACTIVE);
+ ADD(Normal, ButtonText, Light);
+ ADD(Normal, Text, Light);
+ SAVE(ComboBoxPalette);
+ SAVE(GroupBoxPalette);
+ CLEAR;
+
+ // Menu bar
+ GTK(Default, Text, ACTIVE);
+ ADD(Normal, ButtonText);
+ SAVE(MenuPalette);
+ CLEAR;
+
+ // LineEdit
+ GTK(Default, Background, NORMAL);
+ ADD(All, Base);
+ SAVE(TextLineEditPalette);
+ CLEAR;
+
+#undef GTK
+#undef REC
+#undef FIX
+#undef ADD
+#undef ADD_2
+#undef ADD_3
+#undef ADD_X
+#undef SAVE
+#undef LOAD
+}
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platformthemes/gtk3/qgtk3storage_p.h b/src/plugins/platformthemes/gtk3/qgtk3storage_p.h
new file mode 100644
index 0000000000..57f6aeea96
--- /dev/null
+++ b/src/plugins/platformthemes/gtk3/qgtk3storage_p.h
@@ -0,0 +1,234 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QGTK3STORAGE_P_H
+#define QGTK3STORAGE_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qgtk3interface_p.h"
+
+#include <QtCore/QJsonDocument>
+#include <QtCore/QCache>
+#include <QtCore/QString>
+#include <QtGui/QGuiApplication>
+#include <QtGui/QPalette>
+
+#include <qpa/qplatformtheme.h>
+#include <private/qflatmap_p.h>
+
+QT_BEGIN_NAMESPACE
+class QGtk3Storage
+{
+ Q_GADGET
+public:
+ QGtk3Storage();
+
+ enum class SourceType {
+ Gtk,
+ Fixed,
+ Modified,
+ Invalid
+ };
+ Q_ENUM(SourceType)
+
+ // Standard GTK source: Populate a brush from GTK
+ struct Gtk3Source {
+ QGtk3Interface::QGtkWidget gtkWidgetType;
+ QGtk3Interface::QGtkColorSource source;
+ GtkStateFlags state;
+ int width = -1;
+ int height = -1;
+ QDebug operator<<(QDebug dbg)
+ {
+ return dbg << "QGtkStorage::Gtk3Source(gtkwidgetType=" << gtkWidgetType << ", source="
+ << source << ", state=" << state << ", width=" << width << ", height="
+ << height << ")";
+ }
+ };
+
+ // Recursive source: Populate a brush by altering another source
+ struct RecursiveSource {
+ QPalette::ColorGroup colorGroup;
+ QPalette::ColorRole colorRole;
+ Qt::Appearance appearance;
+ int lighter = 100;
+ int deltaRed = 0;
+ int deltaGreen = 0;
+ int deltaBlue = 0;
+ int width = -1;
+ int height = -1;
+ QDebug operator<<(QDebug dbg)
+ {
+ return dbg << "QGtkStorage::RecursiceSource(colorGroup=" << colorGroup << ", colorRole="
+ << colorRole << ", appearance=" << appearance << ", lighter=" << lighter
+ << ", deltaRed="<< deltaRed << "deltaBlue =" << deltaBlue << "deltaGreen="
+ << deltaGreen << ", width=" << width << ", height=" << height << ")";
+ }
+ };
+
+ // Fixed source: Populate a brush with fixed values rather than reading GTK
+ struct FixedSource {
+ QBrush fixedBrush;
+ QDebug operator<<(QDebug dbg)
+ {
+ return dbg << "QGtkStorage::FixedSource(" << fixedBrush << ")";
+ }
+ };
+
+ // Data source for brushes
+ struct Source {
+ SourceType sourceType = SourceType::Invalid;
+ Gtk3Source gtk3;
+ RecursiveSource rec;
+ FixedSource fix;
+
+ // GTK constructor
+ Source(QGtk3Interface::QGtkWidget wtype, QGtk3Interface::QGtkColorSource csource,
+ GtkStateFlags cstate, int bwidth = -1, int bheight = -1) : sourceType(SourceType::Gtk)
+ {
+ gtk3.gtkWidgetType = wtype;
+ gtk3.source = csource;
+ gtk3.state = cstate;
+ gtk3.width = bwidth;
+ gtk3.height = bheight;
+ }
+
+ // Recursive constructor for darker/lighter colors
+ Source(QPalette::ColorGroup group, QPalette::ColorRole role,
+ Qt::Appearance app, int p_lighter = 100)
+ : sourceType(SourceType::Modified)
+ {
+ rec.colorGroup = group;
+ rec.colorRole = role;
+ rec.appearance = app;
+ rec.lighter = p_lighter;
+ }
+
+ // Recursive ocnstructor for color modification
+ Source(QPalette::ColorGroup group, QPalette::ColorRole role,
+ Qt::Appearance app, int p_red, int p_green, int p_blue)
+ : sourceType(SourceType::Modified)
+ {
+ rec.colorGroup = group;
+ rec.colorRole = role;
+ rec.appearance = app;
+ rec.deltaRed = p_red;
+ rec.deltaGreen = p_green;
+ rec.deltaBlue = p_blue;
+ }
+
+ // Recursive constructor for all: color modification and darker/lighter
+ Source(QPalette::ColorGroup group, QPalette::ColorRole role,
+ Qt::Appearance app, int p_lighter,
+ int p_red, int p_green, int p_blue) : sourceType(SourceType::Modified)
+ {
+ rec.colorGroup = group;
+ rec.colorRole = role;
+ rec.appearance = app;
+ rec.lighter = p_lighter;
+ rec.deltaRed = p_red;
+ rec.deltaGreen = p_green;
+ rec.deltaBlue = p_blue;
+ }
+
+ // Fixed Source constructor
+ Source(const QBrush &brush) : sourceType(SourceType::Fixed)
+ {
+ fix.fixedBrush = brush;
+ };
+
+ // Invalid constructor and getter
+ Source() : sourceType(SourceType::Invalid) {};
+ bool isValid() const { return sourceType != SourceType::Invalid; }
+
+ // Debug
+ QDebug operator<<(QDebug dbg)
+ {
+ return dbg << "QGtk3Storage::Source(sourceType=" << sourceType << ")";
+ }
+ };
+
+ // Struct with key attributes to identify a brush: color group, color role and appearance
+ struct TargetBrush {
+ QPalette::ColorGroup colorGroup;
+ QPalette::ColorRole colorRole;
+ Qt::Appearance appearance;
+
+ // Generic constructor
+ TargetBrush(QPalette::ColorGroup group, QPalette::ColorRole role,
+ Qt::Appearance app = Qt::Appearance::Unknown) :
+ colorGroup(group), colorRole(role), appearance(app) {};
+
+ // Copy constructor with appearance modifier for dark/light aware search
+ TargetBrush(const TargetBrush &other, Qt::Appearance app) :
+ colorGroup(other.colorGroup), colorRole(other.colorRole), appearance(app) {};
+
+ // struct becomes key of a map, so operator< is needed
+ bool operator<(const TargetBrush& other) const {
+ return std::tie(colorGroup, colorRole, appearance) <
+ std::tie(other.colorGroup, other.colorRole, other.appearance);
+ }
+ };
+
+ // Mapping a palette's brushes to their GTK sources
+ typedef QFlatMap<TargetBrush, Source> BrushMap;
+
+ // Storage of palettes and their GTK sources
+ typedef QFlatMap<QPlatformTheme::Palette, BrushMap> PaletteMap;
+
+ // Public getters
+ const QPalette *palette(QPlatformTheme::Palette = QPlatformTheme::SystemPalette) const;
+ QPixmap standardPixmap(QPlatformTheme::StandardPixmap standardPixmap, const QSizeF &size) const;
+ Qt::Appearance appearance() const { return m_appearance; };
+ static QPalette standardPalette();
+ const QString themeName() const { return m_interface ? m_interface->themeName() : QString(); };
+ const QFont *font(QPlatformTheme::Font type) const;
+ QIcon fileIcon(const QFileInfo &fileInfo) const;
+
+ // Initialization
+ void populateMap();
+ void handleThemeChange();
+
+private:
+ // Storage for palettes and their brushes
+ PaletteMap m_palettes;
+
+ std::unique_ptr<QGtk3Interface> m_interface;
+
+
+ Qt::Appearance m_appearance = Qt::Appearance::Unknown;
+
+ // Caches for Pixmaps, fonts and palettes
+ mutable QCache<QPlatformTheme::StandardPixmap, QImage> m_pixmapCache;
+ mutable std::array<std::optional<QPalette>, QPlatformTheme::Palette::NPalettes> m_paletteCache;
+ mutable std::array<std::optional<QFont>, QPlatformTheme::NFonts> m_fontCache;
+
+ // Search brush with a given GTK3 source
+ QBrush brush(const Source &source, const BrushMap &map) const;
+
+ // Get GTK3 source for a target brush
+ Source brush (const TargetBrush &brush, const BrushMap &map) const;
+
+ // clear cache, palettes and appearance
+ void clear();
+
+ // Data creation, import & export
+ void createMapping ();
+ const PaletteMap savePalettes() const;
+ bool save(const QString &filename, const QJsonDocument::JsonFormat f = QJsonDocument::Indented) const;
+ QJsonDocument save() const;
+ bool load(const QString &filename);
+};
+
+QT_END_NAMESPACE
+#endif // QGTK3STORAGE_H
diff --git a/src/plugins/platformthemes/gtk3/qgtk3theme.cpp b/src/plugins/platformthemes/gtk3/qgtk3theme.cpp
index aceacda4b8..ee6e0f3dd9 100644
--- a/src/plugins/platformthemes/gtk3/qgtk3theme.cpp
+++ b/src/plugins/platformthemes/gtk3/qgtk3theme.cpp
@@ -135,6 +135,8 @@ QGtk3Theme::QGtk3Theme()
qputenv("XCURSOR_THEME", cursorTheme.toUtf8());
}
}
+
+ m_storage.reset(new QGtk3Storage);
}
static inline QVariant gtkGetLongPressTime()
@@ -235,4 +237,25 @@ bool QGtk3Theme::useNativeFileDialog()
return gtk_check_version(3, 15, 5) == nullptr;
}
+const QPalette *QGtk3Theme::palette(Palette type) const
+{
+ return m_storage ? m_storage->palette(type) : QPlatformTheme::palette(type);
+}
+
+QPixmap QGtk3Theme::standardPixmap(StandardPixmap sp, const QSizeF &size) const
+{
+ return m_storage ? m_storage->standardPixmap(sp, size) : QPlatformTheme::standardPixmap(sp, size);
+}
+
+const QFont *QGtk3Theme::font(Font type) const
+{
+ return m_storage ? m_storage->font(type) : QGnomeTheme::font(type);
+}
+
+QIcon QGtk3Theme::fileIcon(const QFileInfo &fileInfo,
+ QPlatformTheme::IconOptions iconOptions) const
+{
+ return m_storage ? m_storage->fileIcon(fileInfo) : QGnomeTheme::fileIcon(fileInfo, iconOptions);
+}
+
QT_END_NAMESPACE
diff --git a/src/plugins/platformthemes/gtk3/qgtk3theme.h b/src/plugins/platformthemes/gtk3/qgtk3theme.h
index 54296d2ff1..99e896c020 100644
--- a/src/plugins/platformthemes/gtk3/qgtk3theme.h
+++ b/src/plugins/platformthemes/gtk3/qgtk3theme.h
@@ -41,6 +41,7 @@
#define QGTK3THEME_H
#include <private/qgenericunixthemes_p.h>
+#include "qgtk3storage_p.h"
QT_BEGIN_NAMESPACE
@@ -58,9 +59,16 @@ public:
QPlatformMenu* createPlatformMenu() const override;
QPlatformMenuItem* createPlatformMenuItem() const override;
+ const QPalette *palette(Palette type = SystemPalette) const override;
+ const QFont *font(Font type = SystemFont) const override;
+ QPixmap standardPixmap(StandardPixmap sp, const QSizeF &size) const override;
+ QIcon fileIcon(const QFileInfo &fileInfo,
+ QPlatformTheme::IconOptions iconOptions = { }) const override;
+
static const char *name;
private:
static bool useNativeFileDialog();
+ std::unique_ptr<QGtk3Storage> m_storage;
};
QT_END_NAMESPACE
--
2.41.0