From 1191c504d000efc7bc3e7618e93117cbe6a15cd8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andrew=20Lee=20=28=E6=9D=8E=E5=81=A5=E7=A7=8B=29?= Date: Wed, 12 Aug 2015 05:22:41 +0800 Subject: [PATCH] Adding upstream version 0.9.0. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Andrew Lee (李健秋) --- AUTHORS | 11 + CMakeLists.txt | 29 +++ COPYING | 461 +++++++++++++++++++++++++++++++++++++ README | 12 + lxqt-qtplugin.kdev4 | 3 + src/CMakeLists.txt | 38 +++ src/lxqtplatformtheme.cpp | 317 +++++++++++++++++++++++++ src/lxqtplatformtheme.h | 98 ++++++++ src/lxqtplatformtheme.json | 3 + src/main.cpp | 50 ++++ src/qiconloader_p.h | 194 ++++++++++++++++ 11 files changed, 1216 insertions(+) create mode 100644 AUTHORS create mode 100644 CMakeLists.txt create mode 100644 COPYING create mode 100644 README create mode 100644 lxqt-qtplugin.kdev4 create mode 100644 src/CMakeLists.txt create mode 100644 src/lxqtplatformtheme.cpp create mode 100644 src/lxqtplatformtheme.h create mode 100644 src/lxqtplatformtheme.json create mode 100644 src/main.cpp create mode 100644 src/qiconloader_p.h diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..8e41b63 --- /dev/null +++ b/AUTHORS @@ -0,0 +1,11 @@ +Upstream Authors: + LXQt team: http://lxqt.org + Hong Jen Yee (PCMan) + +Copyright: + Copyright (c) 2013-2014 LXQt team + +License: GPL-2 and LGPL-2.1+ +The full text of the licenses can be found in the 'COPYING' file. + +Based on source code from the Qt 4.8 Project by Digia Plc diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 0000000..6bb3e57 --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,29 @@ +cmake_minimum_required(VERSION 2.8.11) +project(lxqt-qtplugin) + +set(CMAKE_INCLUDE_CURRENT_DIR ON) +set(CMAKE_POSITION_INDEPENDENT_CODE ON) +set(CMAKE_AUTOMOC ON) + +find_package(Qt5Widgets REQUIRED QUIET) +find_package(Qt5LinguistTools REQUIRED QUIET) + +find_package(lxqt REQUIRED QUIET) + +include(${LXQT_USE_FILE}) + +if(CMAKE_COMPILER_IS_GNUCXX) + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions -Wl,-no-undefined -Wall") +endif() + +add_subdirectory(src) + +# building tarball with CPack ------------------------------------------------- +include(InstallRequiredSystemLibraries) +set(CPACK_PACKAGE_VERSION_MAJOR ${LXQT_MAJOR_VERSION}) +set(CPACK_PACKAGE_VERSION_MINOR ${LXQT_MINOR_VERSION}) +set(CPACK_PACKAGE_VERSION_PATCH ${LXQT_PATCH_VERSION}) +set(CPACK_GENERATOR TBZ2) +set(CPACK_SOURCE_GENERATOR TBZ2) +set(CPACK_SOURCE_IGNORE_FILES /build/;.gitignore;.*~;.git;.kdev4;temp) +include(CPack) diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..a8dd823 --- /dev/null +++ b/COPYING @@ -0,0 +1,461 @@ + + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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Then every Qt5 program +can load the theme plugin. +If, for some unknown reasons, the plugin is not loaded, we can +debug the plugin by exporting QT_DEBUG_PLUGINS=1. +Then, Qt5 will print detailed information and error messages +about all plugins in the console when running any Qt5 programs. diff --git a/lxqt-qtplugin.kdev4 b/lxqt-qtplugin.kdev4 new file mode 100644 index 0000000..740812d --- /dev/null +++ b/lxqt-qtplugin.kdev4 @@ -0,0 +1,3 @@ +[Project] +Manager=KDevCMakeManager +Name=lxqt-qtplugin diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt new file mode 100644 index 0000000..d65d813 --- /dev/null +++ b/src/CMakeLists.txt @@ -0,0 +1,38 @@ +include_directories( + ${Qt5Gui_PRIVATE_INCLUDE_DIRS} + "${CMAKE_CURRENT_BINARY_DIR}" +) + +set(qtlxqt_SRCS + main.cpp + lxqtplatformtheme.cpp +) + +add_library(qtlxqt SHARED ${qtlxqt_SRCS}) + +target_link_libraries(qtlxqt + Qt5::Widgets +) + +# there is no standard way to get the plugin dir of Qt5 with cmake +# The best way is get_target_property(QT_PLUGINS_DIR Qt5::QGtk2ThemePlugin LOCATION). +# This directly returns the platformthemes dir. However, this does not work +# in some distros, such as ubuntu. +# Finally, I came up with a more reliable way by using qmake. +get_target_property(QT_QMAKE_EXECUTABLE ${Qt5Core_QMAKE_EXECUTABLE} IMPORTED_LOCATION) +if(NOT QT_QMAKE_EXECUTABLE) + message(FATAL_ERROR "qmake is not found.") +endif() + +# execute the command "qmake -query QT_INSTALL_PLUGINS" to get the path of plugins dir. +execute_process(COMMAND ${QT_QMAKE_EXECUTABLE} -query QT_INSTALL_PLUGINS + OUTPUT_VARIABLE QT_PLUGINS_DIR + OUTPUT_STRIP_TRAILING_WHITESPACE +) +if(QT_PLUGINS_DIR) + message(STATUS "Qt5 plugin directory:" "${QT_PLUGINS_DIR}") +else() + message(FATAL_ERROR "Qt5 plugin directory cannot be detected.") +endif() + +install(TARGETS qtlxqt LIBRARY DESTINATION "${QT_PLUGINS_DIR}/platformthemes") diff --git a/src/lxqtplatformtheme.cpp b/src/lxqtplatformtheme.cpp new file mode 100644 index 0000000..a7b5edc --- /dev/null +++ b/src/lxqtplatformtheme.cpp @@ -0,0 +1,317 @@ +/* BEGIN_COMMON_COPYRIGHT_HEADER + * (c)LGPL2+ + * + * LXDE-Qt - a lightweight, Qt based, desktop toolset + * http://lxde.org/ + * + * Copyright: 2014 LXQt team + * Authors: + * Hong Jen Yee (PCMan) + * + * This program or library is free software; you can redistribute it + * and/or modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + + * You should have received a copy of the GNU Lesser General + * Public License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301 USA + * + * END_COMMON_COPYRIGHT_HEADER */ + +#include "lxqtplatformtheme.h" +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "qiconloader_p.h" + +LXQtPlatformTheme::LXQtPlatformTheme(): + settingsWatcher_(NULL) +{ + // qDebug() << "LXQT Platform Theme loaded"; + // When the plugin is loaded, it seems that the app is not yet running and + // QThread environment is not completely set up. So creating filesystem watcher + // does not work since it uses QSocketNotifier internally which can only be + // created within QThread thread. So let's schedule a idle handler to initialize + // the watcher in the main event loop. + loadSettings(); + QTimer::singleShot(0, this, SLOT(initWatch())); +} + +LXQtPlatformTheme::~LXQtPlatformTheme() { + if(settingsWatcher_) + delete settingsWatcher_; +} + +void LXQtPlatformTheme::initWatch() +{ + settingsWatcher_ = new QFileSystemWatcher(); + settingsWatcher_->addPath(settingsFile_); + connect(settingsWatcher_, &QFileSystemWatcher::fileChanged, this, &LXQtPlatformTheme::onSettingsChanged); +} + +void LXQtPlatformTheme::loadSettings() { + // QSettings is really handy. It tries to read from /etc/xdg/lxqt/lxqt.conf + // as a fallback if a key is missing from the user config file ~/.config/lxqt/lxqt.conf. + // So we can customize the default values in /etc/xdg/lxqt/lxqt.conf and does + // not necessarily to hard code the default values here. + QSettings settings(QSettings::UserScope, "lxqt", "lxqt"); + settingsFile_ = settings.fileName(); + + // icon theme + iconTheme_ = settings.value("icon_theme", "oxygen").toString(); + + // read other widget related settings form LxQt settings. + QByteArray tb_style = settings.value("tool_button_style").toByteArray(); + // convert toolbar style name to value + QMetaEnum me = QToolBar::staticMetaObject.property(QToolBar::staticMetaObject.indexOfProperty("toolButtonStyle")).enumerator(); + int value = me.keyToValue(tb_style.constData()); + if(value == -1) + toolButtonStyle_ = Qt::ToolButtonTextBesideIcon; + else + toolButtonStyle_ = static_cast(value); + + // single click activation + singleClickActivate_ = settings.value("single_click_activate").toBool(); + + // load Qt settings + settings.beginGroup(QLatin1String("Qt")); + + // widget style + style_ = settings.value(QLatin1String("style"), QLatin1String("fusion")).toString(); + + // SystemFont + fontStr_ = settings.value(QLatin1String("font")).toString(); + if(!fontStr_.isEmpty()) { + if(font_.fromString(fontStr_)) + QApplication::setFont(font_); // it seems that we need to do this manually. + // qDebug() << "font: " << font_.toString(); + } + + // FixedFont + fixedFontStr_ = settings.value(QLatin1String("fixedFont")).toString(); + if(!fixedFontStr_.isEmpty()) { + fixedFont_.fromString(fixedFontStr_); + // qDebug() << "fixedFont: " << fixedFont_.toString(); + } + + // mouse + doubleClickInterval_ = settings.value(QLatin1String("doubleClickInterval")); + wheelScrollLines_ = settings.value(QLatin1String("wheelScrollLines")); + + // keyboard + cursorFlashTime_ = settings.value(QLatin1String("cursorFlashTime")); + settings.endGroup(); +} + +// this is called whenever the config file is changed. +void LXQtPlatformTheme::onSettingsChanged() { + // D*mn! yet another Qt 5.4 regression!!! + // See the bug report: https://github.com/lxde/lxqt/issues/441 + // Since Qt 5.4, QSettings uses QSaveFile to save the config files. + // https://github.com/qtproject/qtbase/commit/8d15068911d7c0ba05732e2796aaa7a90e34a6a1#diff-e691c0405f02f3478f4f50a27bdaecde + // QSaveFile will save the content to a new temp file, and replace the old file later. + // Hence the existing config file is not changed. Instead, it's deleted and then replaced. + // This new behaviour unfortunately breaks QFileSystemWatcher. + // After file deletion, we can no longer receive any new change notifications. + // The most ridiculous thing is, QFileSystemWatcher does not provide a + // way for us to know if a file is deleted. WT*? + // Luckily, I found a workaround: If the file path no longer exists + // in the watcher's files(), this file is deleted. + bool file_deleted = !settingsWatcher_->files().contains(settingsFile_); + if(file_deleted) // if our config file is already deleted, reinstall a new watcher + settingsWatcher_->addPath(settingsFile_); + + // NOTE: in Qt4, Qt monitors the change of _QT_SETTINGS_TIMESTAMP root property and + // reload Trolltech.conf when the value is changed. Then, it automatically + // applies the new settings. + // Unfortunately, this is no longer the case in Qt5. Yes, yet another regression. + // We're free to provide our own platform plugin, but Qt5 does not + // update the settings and repaint the UI. We need to do it ourselves + // through dirty hacks and private Qt internal APIs. + QString oldStyle = style_; + QString oldIconTheme = iconTheme_; + QString oldFont = fontStr_; + QString oldFixedFont = fixedFontStr_; + + loadSettings(); // reload the config file + + if(style_ != oldStyle) // the widget style is changed + qApp->setStyle(style_); // ask Qt5 to apply the new style + + if(iconTheme_ != oldIconTheme) { // the icon theme is changed + QIconLoader::instance()->updateSystemTheme(); // this is a private internal API of Qt5. + } + + // if font is changed + if(oldFont != fontStr_ || oldFixedFont != fixedFontStr_){ + // FIXME: to my knowledge there is no way to ask Qt to reload the fonts. + // Should we call QApplication::setFont() to override the font? + // This does not work with QSS, though. + // + // After reading the source code of Qt, I think the right method to call + // here is QApplicationPrivate::setSystemFont(). However, this is an + // internal API and should not be used. Let's call QApplication::setFont() + // instead since it approximately does the same thing. + // Internally, QApplication will emit QEvent::ApplicationFontChange so + // all of the widgets will update their fonts. + // FIXME: should we call the internal API: QApplicationPrivate::setFont() instead? + // QGtkStyle does this internally. + fixedFont_.fromString(fixedFontStr_); // FIXME: how to set this to the app? + if(font_.fromString(fontStr_)) + QApplication::setFont(font_); + } + + // emit a ThemeChange event to all widgets + Q_FOREACH(QWidget* widget, QApplication::allWidgets()) { + // Qt5 added a QEvent::ThemeChange event. + QEvent event(QEvent::ThemeChange); + QApplication::sendEvent(widget, &event); + } +} + +bool LXQtPlatformTheme::usePlatformNativeDialog(DialogType type) const { + return false; +} + +#if 0 +QPlatformDialogHelper *LXQtPlatformTheme::createPlatformDialogHelper(DialogType type) const { + return 0; +} + +const QPalette *LXQtPlatformTheme::palette(Palette type) const { + return new QPalette(); +} + +#endif + +const QFont *LXQtPlatformTheme::font(Font type) const { + // qDebug() << "font()" << type << SystemFont; + if(type == SystemFont && !fontStr_.isEmpty()) { + // NOTE: for some reason, this is not called by Qt when program startup. + // So we do QApplication::setFont() manually. + return &font_; + } + else if(type == FixedFont && !fixedFontStr_.isEmpty()) { + return &fixedFont_; + } + return QPlatformTheme::font(type); +} + +QVariant LXQtPlatformTheme::themeHint(ThemeHint hint) const { + // qDebug() << "themeHint" << hint; + switch (hint) { + case CursorFlashTime: + return cursorFlashTime_; + case KeyboardInputInterval: + break; + case MouseDoubleClickInterval: + return doubleClickInterval_; + case StartDragDistance: + break; + case StartDragTime: + break; + case KeyboardAutoRepeatRate: + break; + case PasswordMaskDelay: + break; + case StartDragVelocity: + break; + case TextCursorWidth: + break; + case DropShadow: + return QVariant(true); + case MaximumScrollBarDragDistance: + break; + case ToolButtonStyle: + return QVariant(toolButtonStyle_); + case ToolBarIconSize: + break; + case ItemViewActivateItemOnSingleClick: + return QVariant(singleClickActivate_); + case SystemIconThemeName: + qDebug() << "iconTheme" << iconTheme_; + return iconTheme_; + case SystemIconFallbackThemeName: + return "hicolor"; + case IconThemeSearchPaths: + return xdgIconThemePaths(); + case StyleNames: + // qDebug() << "StyleNames"; + return QStringList() << style_; + case WindowAutoPlacement: + break; + case DialogButtonBoxLayout: + break; + case DialogButtonBoxButtonsHaveIcons: + return QVariant(true); + case UseFullScreenForPopupMenu: + break; + case KeyboardScheme: + return QVariant(X11KeyboardScheme); + case UiEffects: + break; + case SpellCheckUnderlineStyle: + break; + case TabAllWidgets: + break; + case IconPixmapSizes: + break; + case PasswordMaskCharacter: + break; + case DialogSnapToDefaultButton: + break; + case ContextMenuOnMouseRelease: + break; +#if QT_VERSION >= QT_VERSION_CHECK(5, 3, 0) + // this was introduced in Qt 5.3. + case MousePressAndHoldInterval: + break; + case MouseDoubleClickDistance: + break; +#endif + default: + break; + } + return QPlatformTheme::themeHint(hint); +} + +// Helper to return the icon theme paths from XDG. +QStringList LXQtPlatformTheme::xdgIconThemePaths() const +{ + QStringList paths; + // Add home directory first in search path + const QFileInfo homeIconDir(QDir::homePath() + QStringLiteral("/.icons")); + if (homeIconDir.isDir()) + paths.prepend(homeIconDir.absoluteFilePath()); + + QString xdgDirString = QFile::decodeName(qgetenv("XDG_DATA_DIRS")); + if (xdgDirString.isEmpty()) + xdgDirString = QLatin1String("/usr/local/share/:/usr/share/"); + foreach (const QString &xdgDir, xdgDirString.split(QLatin1Char(':'))) { + const QFileInfo xdgIconsDir(xdgDir + QStringLiteral("/icons")); + if (xdgIconsDir.isDir()) + paths.append(xdgIconsDir.absoluteFilePath()); + } + return paths; +} diff --git a/src/lxqtplatformtheme.h b/src/lxqtplatformtheme.h new file mode 100644 index 0000000..abba806 --- /dev/null +++ b/src/lxqtplatformtheme.h @@ -0,0 +1,98 @@ +/* BEGIN_COMMON_COPYRIGHT_HEADER + * (c)LGPL2+ + * + * LXDE-Qt - a lightweight, Qt based, desktop toolset + * http://lxde.org/ + * + * Copyright: 2014 LXQt team + * Authors: + * Hong Jen Yee (PCMan) + * + * This program or library is free software; you can redistribute it + * and/or modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + + * You should have received a copy of the GNU Lesser General + * Public License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301 USA + * + * END_COMMON_COPYRIGHT_HEADER */ + +#ifndef LXQTPLATFORMTHEME_H +#define LXQTPLATFORMTHEME_H + +#include // this private header is subject to changes +#include +#include +#include +#include +#include + +class Q_GUI_EXPORT LXQtPlatformTheme : public QObject, public QPlatformTheme { + Q_OBJECT +public: + LXQtPlatformTheme(); + ~LXQtPlatformTheme(); + + // virtual QPlatformMenuItem* createPlatformMenuItem() const; + // virtual QPlatformMenu* createPlatformMenu() const; + // virtual QPlatformMenuBar* createPlatformMenuBar() const; + + virtual bool usePlatformNativeDialog(DialogType type) const; + // virtual QPlatformDialogHelper *createPlatformDialogHelper(DialogType type) const; + + // virtual const QPalette *palette(Palette type = SystemPalette) const; + + virtual const QFont *font(Font type = SystemFont) const; + + virtual QVariant themeHint(ThemeHint hint) const; + + // virtual QPixmap standardPixmap(StandardPixmap sp, const QSizeF &size) const; + // virtual QPixmap fileIconPixmap(const QFileInfo &fileInfo, const QSizeF &size, + // QPlatformTheme::IconOptions iconOptions = 0) const; + + // virtual QIconEngine *createIconEngine(const QString &iconName) const; + + // virtual QList keyBindings(QKeySequence::StandardKey key) const; + + // virtual QString standardButtonText(int button) const; + +private: + void loadSettings(); + +private Q_SLOTS: + void initWatch(); + void onSettingsChanged(); + +private: + // LXQt settings + QString iconTheme_; + Qt::ToolButtonStyle toolButtonStyle_; + bool singleClickActivate_; + + // other Qt settings + // widget + QString style_; + QString fontStr_; + QFont font_; + QString fixedFontStr_; + QFont fixedFont_; + // mouse + QVariant doubleClickInterval_; + QVariant wheelScrollLines_; + // keyboard + QVariant cursorFlashTime_; + QFileSystemWatcher *settingsWatcher_; + QString settingsFile_; + + QStringList xdgIconThemePaths() const; +}; + +#endif // LXQTPLATFORMTHEME_H diff --git a/src/lxqtplatformtheme.json b/src/lxqtplatformtheme.json new file mode 100644 index 0000000..976ed97 --- /dev/null +++ b/src/lxqtplatformtheme.json @@ -0,0 +1,3 @@ +{ + "Keys": [ "lxqt" ] +} diff --git a/src/main.cpp b/src/main.cpp new file mode 100644 index 0000000..d1d21c9 --- /dev/null +++ b/src/main.cpp @@ -0,0 +1,50 @@ +/* BEGIN_COMMON_COPYRIGHT_HEADER + * (c)LGPL2+ + * + * LXDE-Qt - a lightweight, Qt based, desktop toolset + * http://lxde.org/ + * + * Copyright: 2014 LXQt team + * Authors: + * Hong Jen Yee (PCMan) + * + * This program or library is free software; you can redistribute it + * and/or modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + + * You should have received a copy of the GNU Lesser General + * Public License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301 USA + * + * END_COMMON_COPYRIGHT_HEADER */ + +// NOTE: To load the plugin, we can set environment variable QT_QPA_PLATFORMTHEME=lxqt + +#include +#include "lxqtplatformtheme.h" + +QT_BEGIN_NAMESPACE + +class LXQtPlatformThemePlugin: public QPlatformThemePlugin { + Q_OBJECT + Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QPA.QPlatformThemeFactoryInterface.5.1" FILE "lxqtplatformtheme.json") +public: + QPlatformTheme *create(const QString &key, const QStringList ¶ms); +}; + +QPlatformTheme *LXQtPlatformThemePlugin::create(const QString &key, const QStringList ¶ms) { + if (!key.compare(QLatin1String("lxqt"), Qt::CaseInsensitive)) + return new LXQtPlatformTheme(); + return NULL; +} + +QT_END_NAMESPACE + +#include "main.moc" diff --git a/src/qiconloader_p.h b/src/qiconloader_p.h new file mode 100644 index 0000000..419d93d --- /dev/null +++ b/src/qiconloader_p.h @@ -0,0 +1,194 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QICONLOADER_P_H +#define QICONLOADER_P_H + +#include + +#ifndef QT_NO_ICON +// +// 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 +#include +#include +#include +#include +#include + +QT_BEGIN_NAMESPACE + +class QIconLoader; + +struct QIconDirInfo +{ + enum Type { Fixed, Scalable, Threshold }; + QIconDirInfo(const QString &_path = QString()) : + path(_path), + size(0), + maxSize(0), + minSize(0), + threshold(0), + type(Threshold) {} + QString path; + short size; + short maxSize; + short minSize; + short threshold; + Type type : 4; +}; + +class QIconLoaderEngineEntry + { +public: + virtual ~QIconLoaderEngineEntry() {} + virtual QPixmap pixmap(const QSize &size, + QIcon::Mode mode, + QIcon::State state) = 0; + QString filename; + QIconDirInfo dir; + static int count; +}; + +struct ScalableEntry : public QIconLoaderEngineEntry +{ + QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state); + QIcon svgIcon; +}; + +struct PixmapEntry : public QIconLoaderEngineEntry +{ + QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state); + QPixmap basePixmap; +}; + +typedef QList QThemeIconEntries; + +class QIconLoaderEngine : public QIconEngine +{ +public: + QIconLoaderEngine(const QString& iconName = QString()); + ~QIconLoaderEngine(); + + void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state); + QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state); + QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state); + QIconEngine *clone() const; + bool read(QDataStream &in); + bool write(QDataStream &out) const; + +private: + QString key() const; + bool hasIcon() const; + void ensureLoaded(); + void virtual_hook(int id, void *data); + QIconLoaderEngineEntry *entryForSize(const QSize &size); + QIconLoaderEngine(const QIconLoaderEngine &other); + QThemeIconEntries m_entries; + QString m_iconName; + uint m_key; + + friend class QIconLoader; +}; + +class QIconTheme +{ +public: + QIconTheme(const QString &name); + QIconTheme() : m_valid(false) {} + QStringList parents() { return m_parents; } + QList keyList() { return m_keyList; } + QString contentDir() { return m_contentDir; } + bool isValid() { return m_valid; } + +private: + QString m_contentDir; + QList m_keyList; + QStringList m_parents; + bool m_valid; +}; + +class Q_GUI_EXPORT QIconLoader : public QObject +{ +public: + QIconLoader(); + QThemeIconEntries loadIcon(const QString &iconName) const; + uint themeKey() const { return m_themeKey; } + + QString themeName() const { return m_userTheme.isEmpty() ? m_systemTheme : m_userTheme; } + void setThemeName(const QString &themeName); + QIconTheme theme() { return themeList.value(themeName()); } + void setThemeSearchPath(const QStringList &searchPaths); + QStringList themeSearchPaths() const; + QIconDirInfo dirInfo(int dirindex); + static QIconLoader *instance(); + void updateSystemTheme(); + void invalidateKey() { m_themeKey++; } + void ensureInitialized(); + +private: + QThemeIconEntries findIconHelper(const QString &themeName, + const QString &iconName, + QStringList &visited) const; + uint m_themeKey; + bool m_supportsSvg; + bool m_initialized; + + mutable QString m_userTheme; + mutable QString m_systemTheme; + mutable QStringList m_iconDirs; + mutable QHash themeList; +}; + +QT_END_NAMESPACE + +#endif // QT_NO_ICON + +#endif // QICONLOADER_P_H