diff options
author | Dmitry Shachnev <mitya57@gmail.com> | 2015-11-04 00:06:19 +0300 |
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committer | Dmitry Shachnev <mitya57@gmail.com> | 2015-11-13 05:32:26 +0000 |
commit | e8763912068f4501240cea0b5ae53b25c3d0aa04 (patch) | |
tree | 3af530fa64b73c779349250add2f2cc60a88db9d /src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp | |
parent | f05c75a1b978336210175e80060d3083cff915c8 (diff) |
Port the Gtk platform theme to Gtk+ 3
The major changes compared to the Gtk+ 2 version are:
* Everything is ported to modern Gtk/Gdk API.
* GtkFontChooserDialog is used instead of deprecated GtkFontSelectionDialog.
* Hiding buttons on dialogs (like OK/Cancel) is no longer supported, as it is
impossible to do that with dialogs using GtkHeaderBars.
* Some workarounds were added to the QGtk3Theme constructor to correctly work
with Gtk+ 3.
[ChangeLog][Platform Specific Changes] The Gtk+ platform theme has been ported
to Gtk+ 3.
Change-Id: Iacb01279b6432e0901e3bb1353d5792543cc76e4
Done-with: J-P Nurmi <jpnurmi@theqtcompany.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Lisandro Damián Nicanor Pérez Meyer <perezmeyer@gmail.com>
Reviewed-by: J-P Nurmi <jpnurmi@theqtcompany.com>
Diffstat (limited to 'src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp')
-rw-r--r-- | src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp | 587 |
1 files changed, 587 insertions, 0 deletions
diff --git a/src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp b/src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp new file mode 100644 index 0000000000..2a3585464f --- /dev/null +++ b/src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp @@ -0,0 +1,587 @@ +/**************************************************************************** +** +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL21$ +** 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 The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qgtk3dialoghelpers.h" + +#include <qeventloop.h> +#include <qwindow.h> +#include <qcolor.h> +#include <qdebug.h> +#include <qfont.h> + +#include <private/qguiapplication_p.h> +#include <qpa/qplatformfontdatabase.h> + +#undef signals +#include <gtk/gtk.h> +#include <gdk/gdk.h> +#include <gdk/gdkx.h> +#include <pango/pango.h> + +QT_BEGIN_NAMESPACE + +class QGtk3Dialog : public QWindow +{ + Q_OBJECT + +public: + QGtk3Dialog(GtkWidget *gtkWidget); + ~QGtk3Dialog(); + + GtkDialog *gtkDialog() const; + + void exec(); + bool show(Qt::WindowFlags flags, Qt::WindowModality modality, QWindow *parent); + void hide(); + +Q_SIGNALS: + void accept(); + void reject(); + +protected: + static void onResponse(QGtk3Dialog *dialog, int response); + +private: + GtkWidget *gtkWidget; +}; + +QGtk3Dialog::QGtk3Dialog(GtkWidget *gtkWidget) : gtkWidget(gtkWidget) +{ + g_signal_connect_swapped(G_OBJECT(gtkWidget), "response", G_CALLBACK(onResponse), this); + g_signal_connect(G_OBJECT(gtkWidget), "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL); +} + +QGtk3Dialog::~QGtk3Dialog() +{ + gtk_clipboard_store(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD)); + gtk_widget_destroy(gtkWidget); +} + +GtkDialog *QGtk3Dialog::gtkDialog() const +{ + return GTK_DIALOG(gtkWidget); +} + +void QGtk3Dialog::exec() +{ + if (modality() == Qt::ApplicationModal) { + // block input to the whole app, including other GTK dialogs + gtk_dialog_run(gtkDialog()); + } else { + // block input to the window, allow input to other GTK dialogs + QEventLoop loop; + connect(this, SIGNAL(accept()), &loop, SLOT(quit())); + connect(this, SIGNAL(reject()), &loop, SLOT(quit())); + loop.exec(); + } +} + +bool QGtk3Dialog::show(Qt::WindowFlags flags, Qt::WindowModality modality, QWindow *parent) +{ + setParent(parent); + setFlags(flags); + setModality(modality); + + gtk_widget_realize(gtkWidget); // creates X window + + GdkWindow *gdkWindow = gtk_widget_get_window(gtkWidget); + if (parent) { + GdkDisplay *gdkDisplay = gdk_window_get_display(gdkWindow); + XSetTransientForHint(gdk_x11_display_get_xdisplay(gdkDisplay), + gdk_x11_window_get_xid(gdkWindow), + parent->winId()); + } + + if (modality != Qt::NonModal) { + gdk_window_set_modal_hint(gdkWindow, true); + QGuiApplicationPrivate::showModalWindow(this); + } + + gtk_widget_show(gtkWidget); + gdk_window_focus(gdkWindow, GDK_CURRENT_TIME); + return true; +} + +void QGtk3Dialog::hide() +{ + QGuiApplicationPrivate::hideModalWindow(this); + gtk_widget_hide(gtkWidget); +} + +void QGtk3Dialog::onResponse(QGtk3Dialog *dialog, int response) +{ + if (response == GTK_RESPONSE_OK) + emit dialog->accept(); + else + emit dialog->reject(); +} + +QGtk3ColorDialogHelper::QGtk3ColorDialogHelper() +{ + d.reset(new QGtk3Dialog(gtk_color_chooser_dialog_new("", 0))); + connect(d.data(), SIGNAL(accept()), this, SLOT(onAccepted())); + connect(d.data(), SIGNAL(reject()), this, SIGNAL(reject())); + + g_signal_connect_swapped(d->gtkDialog(), "color-activated", G_CALLBACK(onColorChanged), this); +} + +QGtk3ColorDialogHelper::~QGtk3ColorDialogHelper() +{ +} + +bool QGtk3ColorDialogHelper::show(Qt::WindowFlags flags, Qt::WindowModality modality, QWindow *parent) +{ + applyOptions(); + return d->show(flags, modality, parent); +} + +void QGtk3ColorDialogHelper::exec() +{ + d->exec(); +} + +void QGtk3ColorDialogHelper::hide() +{ + d->hide(); +} + +void QGtk3ColorDialogHelper::setCurrentColor(const QColor &color) +{ + GtkDialog *gtkDialog = d->gtkDialog(); + if (color.alpha() < 255) + gtk_color_chooser_set_use_alpha(GTK_COLOR_CHOOSER(gtkDialog), true); + GdkRGBA gdkColor; + gdkColor.red = color.redF(); + gdkColor.green = color.greenF(); + gdkColor.blue = color.blueF(); + gdkColor.alpha = color.alphaF(); + gtk_color_chooser_set_rgba(GTK_COLOR_CHOOSER(gtkDialog), &gdkColor); +} + +QColor QGtk3ColorDialogHelper::currentColor() const +{ + GtkDialog *gtkDialog = d->gtkDialog(); + GdkRGBA gdkColor; + gtk_color_chooser_get_rgba(GTK_COLOR_CHOOSER(gtkDialog), &gdkColor); + return QColor::fromRgbF(gdkColor.red, gdkColor.green, gdkColor.blue, gdkColor.alpha); +} + +void QGtk3ColorDialogHelper::onAccepted() +{ + emit accept(); + emit colorSelected(currentColor()); +} + +void QGtk3ColorDialogHelper::onColorChanged(QGtk3ColorDialogHelper *dialog) +{ + emit dialog->currentColorChanged(dialog->currentColor()); +} + +void QGtk3ColorDialogHelper::applyOptions() +{ + GtkDialog *gtkDialog = d->gtkDialog(); + gtk_window_set_title(GTK_WINDOW(gtkDialog), options()->windowTitle().toUtf8()); + + gtk_color_chooser_set_use_alpha(GTK_COLOR_CHOOSER(gtkDialog), options()->testOption(QColorDialogOptions::ShowAlphaChannel)); +} + +QGtk3FileDialogHelper::QGtk3FileDialogHelper() +{ + d.reset(new QGtk3Dialog(gtk_file_chooser_dialog_new("", 0, + GTK_FILE_CHOOSER_ACTION_OPEN, + GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, + GTK_STOCK_OK, GTK_RESPONSE_OK, NULL))); + connect(d.data(), SIGNAL(accept()), this, SLOT(onAccepted())); + connect(d.data(), SIGNAL(reject()), this, SIGNAL(reject())); + + g_signal_connect(GTK_FILE_CHOOSER(d->gtkDialog()), "selection-changed", G_CALLBACK(onSelectionChanged), this); + g_signal_connect_swapped(GTK_FILE_CHOOSER(d->gtkDialog()), "current-folder-changed", G_CALLBACK(onCurrentFolderChanged), this); +} + +QGtk3FileDialogHelper::~QGtk3FileDialogHelper() +{ +} + +bool QGtk3FileDialogHelper::show(Qt::WindowFlags flags, Qt::WindowModality modality, QWindow *parent) +{ + _dir.clear(); + _selection.clear(); + + applyOptions(); + return d->show(flags, modality, parent); +} + +void QGtk3FileDialogHelper::exec() +{ + d->exec(); +} + +void QGtk3FileDialogHelper::hide() +{ + // After GtkFileChooserDialog has been hidden, gtk_file_chooser_get_current_folder() + // & gtk_file_chooser_get_filenames() will return bogus values -> cache the actual + // values before hiding the dialog + _dir = directory(); + _selection = selectedFiles(); + + d->hide(); +} + +bool QGtk3FileDialogHelper::defaultNameFilterDisables() const +{ + return false; +} + +void QGtk3FileDialogHelper::setDirectory(const QUrl &directory) +{ + GtkDialog *gtkDialog = d->gtkDialog(); + gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(gtkDialog), directory.toLocalFile().toUtf8()); +} + +QUrl QGtk3FileDialogHelper::directory() const +{ + // While GtkFileChooserDialog is hidden, gtk_file_chooser_get_current_folder() + // returns a bogus value -> return the cached value before hiding + if (!_dir.isEmpty()) + return _dir; + + QString ret; + GtkDialog *gtkDialog = d->gtkDialog(); + gchar *folder = gtk_file_chooser_get_current_folder(GTK_FILE_CHOOSER(gtkDialog)); + if (folder) { + ret = QString::fromUtf8(folder); + g_free(folder); + } + return QUrl::fromLocalFile(ret); +} + +void QGtk3FileDialogHelper::selectFile(const QUrl &filename) +{ + GtkDialog *gtkDialog = d->gtkDialog(); + if (options()->acceptMode() == QFileDialogOptions::AcceptSave) { + QFileInfo fi(filename.toLocalFile()); + gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(gtkDialog), fi.path().toUtf8()); + gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(gtkDialog), fi.fileName().toUtf8()); + } else { + gtk_file_chooser_select_filename(GTK_FILE_CHOOSER(gtkDialog), filename.toLocalFile().toUtf8()); + } +} + +QList<QUrl> QGtk3FileDialogHelper::selectedFiles() const +{ + // While GtkFileChooserDialog is hidden, gtk_file_chooser_get_filenames() + // returns a bogus value -> return the cached value before hiding + if (!_selection.isEmpty()) + return _selection; + + QList<QUrl> selection; + GtkDialog *gtkDialog = d->gtkDialog(); + GSList *filenames = gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(gtkDialog)); + for (GSList *it = filenames; it; it = it->next) + selection += QUrl::fromLocalFile(QString::fromUtf8((const char*)it->data)); + g_slist_free(filenames); + return selection; +} + +void QGtk3FileDialogHelper::setFilter() +{ + applyOptions(); +} + +void QGtk3FileDialogHelper::selectNameFilter(const QString &filter) +{ + GtkFileFilter *gtkFilter = _filters.value(filter); + if (gtkFilter) { + GtkDialog *gtkDialog = d->gtkDialog(); + gtk_file_chooser_set_filter(GTK_FILE_CHOOSER(gtkDialog), gtkFilter); + } +} + +QString QGtk3FileDialogHelper::selectedNameFilter() const +{ + GtkDialog *gtkDialog = d->gtkDialog(); + GtkFileFilter *gtkFilter = gtk_file_chooser_get_filter(GTK_FILE_CHOOSER(gtkDialog)); + return _filterNames.value(gtkFilter); +} + +void QGtk3FileDialogHelper::onAccepted() +{ + emit accept(); + + QString filter = selectedNameFilter(); + if (filter.isEmpty()) + emit filterSelected(filter); + + QList<QUrl> files = selectedFiles(); + emit filesSelected(files); + if (files.count() == 1) + emit fileSelected(files.first()); +} + +void QGtk3FileDialogHelper::onSelectionChanged(GtkDialog *gtkDialog, QGtk3FileDialogHelper *helper) +{ + QString selection; + gchar *filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(gtkDialog)); + if (filename) { + selection = QString::fromUtf8(filename); + g_free(filename); + } + emit helper->currentChanged(QUrl::fromLocalFile(selection)); +} + +void QGtk3FileDialogHelper::onCurrentFolderChanged(QGtk3FileDialogHelper *dialog) +{ + emit dialog->directoryEntered(dialog->directory()); +} + +static GtkFileChooserAction gtkFileChooserAction(const QSharedPointer<QFileDialogOptions> &options) +{ + switch (options->fileMode()) { + case QFileDialogOptions::AnyFile: + case QFileDialogOptions::ExistingFile: + case QFileDialogOptions::ExistingFiles: + if (options->acceptMode() == QFileDialogOptions::AcceptOpen) + return GTK_FILE_CHOOSER_ACTION_OPEN; + else + return GTK_FILE_CHOOSER_ACTION_SAVE; + case QFileDialogOptions::Directory: + case QFileDialogOptions::DirectoryOnly: + default: + if (options->acceptMode() == QFileDialogOptions::AcceptOpen) + return GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER; + else + return GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER; + } +} + +void QGtk3FileDialogHelper::applyOptions() +{ + GtkDialog *gtkDialog = d->gtkDialog(); + const QSharedPointer<QFileDialogOptions> &opts = options(); + + gtk_window_set_title(GTK_WINDOW(gtkDialog), opts->windowTitle().toUtf8()); + gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(gtkDialog), true); + + const GtkFileChooserAction action = gtkFileChooserAction(opts); + gtk_file_chooser_set_action(GTK_FILE_CHOOSER(gtkDialog), action); + + const bool selectMultiple = opts->fileMode() == QFileDialogOptions::ExistingFiles; + gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(gtkDialog), selectMultiple); + + const bool confirmOverwrite = !opts->testOption(QFileDialogOptions::DontConfirmOverwrite); + gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(gtkDialog), confirmOverwrite); + + const QStringList nameFilters = opts->nameFilters(); + if (!nameFilters.isEmpty()) + setNameFilters(nameFilters); + + if (opts->initialDirectory().isLocalFile()) + setDirectory(opts->initialDirectory()); + + foreach (const QUrl &filename, opts->initiallySelectedFiles()) + selectFile(filename); + + const QString initialNameFilter = opts->initiallySelectedNameFilter(); + if (!initialNameFilter.isEmpty()) + selectNameFilter(initialNameFilter); + + GtkWidget *acceptButton = gtk_dialog_get_widget_for_response(gtkDialog, GTK_RESPONSE_OK); + if (acceptButton) { + if (opts->isLabelExplicitlySet(QFileDialogOptions::Accept)) + gtk_button_set_label(GTK_BUTTON(acceptButton), opts->labelText(QFileDialogOptions::Accept).toUtf8()); + else if (opts->acceptMode() == QFileDialogOptions::AcceptOpen) + gtk_button_set_label(GTK_BUTTON(acceptButton), GTK_STOCK_OPEN); + else + gtk_button_set_label(GTK_BUTTON(acceptButton), GTK_STOCK_SAVE); + } + + GtkWidget *rejectButton = gtk_dialog_get_widget_for_response(gtkDialog, GTK_RESPONSE_CANCEL); + if (rejectButton) { + if (opts->isLabelExplicitlySet(QFileDialogOptions::Reject)) + gtk_button_set_label(GTK_BUTTON(rejectButton), opts->labelText(QFileDialogOptions::Reject).toUtf8()); + else + gtk_button_set_label(GTK_BUTTON(rejectButton), GTK_STOCK_CANCEL); + } +} + +void QGtk3FileDialogHelper::setNameFilters(const QStringList &filters) +{ + GtkDialog *gtkDialog = d->gtkDialog(); + foreach (GtkFileFilter *filter, _filters) + gtk_file_chooser_remove_filter(GTK_FILE_CHOOSER(gtkDialog), filter); + + _filters.clear(); + _filterNames.clear(); + + foreach (const QString &filter, filters) { + GtkFileFilter *gtkFilter = gtk_file_filter_new(); + const QString name = filter.left(filter.indexOf(QLatin1Char('('))); + const QStringList extensions = cleanFilterList(filter); + + gtk_file_filter_set_name(gtkFilter, name.isEmpty() ? extensions.join(QStringLiteral(", ")).toUtf8() : name.toUtf8()); + foreach (const QString &ext, extensions) + gtk_file_filter_add_pattern(gtkFilter, ext.toUtf8()); + + gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(gtkDialog), gtkFilter); + + _filters.insert(filter, gtkFilter); + _filterNames.insert(gtkFilter, filter); + } +} + +QGtk3FontDialogHelper::QGtk3FontDialogHelper() +{ + d.reset(new QGtk3Dialog(gtk_font_chooser_dialog_new("", 0))); + connect(d.data(), SIGNAL(accept()), this, SLOT(onAccepted())); + connect(d.data(), SIGNAL(reject()), this, SIGNAL(reject())); +} + +QGtk3FontDialogHelper::~QGtk3FontDialogHelper() +{ +} + +bool QGtk3FontDialogHelper::show(Qt::WindowFlags flags, Qt::WindowModality modality, QWindow *parent) +{ + applyOptions(); + return d->show(flags, modality, parent); +} + +void QGtk3FontDialogHelper::exec() +{ + d->exec(); +} + +void QGtk3FontDialogHelper::hide() +{ + d->hide(); +} + +static QString qt_fontToString(const QFont &font) +{ + PangoFontDescription *desc = pango_font_description_new(); + pango_font_description_set_size(desc, font.pointSizeF() * PANGO_SCALE); + pango_font_description_set_family(desc, font.family().toUtf8()); + + int weight = font.weight(); + if (weight >= QFont::Black) + pango_font_description_set_weight(desc, PANGO_WEIGHT_HEAVY); + else if (weight >= QFont::ExtraBold) + pango_font_description_set_weight(desc, PANGO_WEIGHT_ULTRABOLD); + else if (weight >= QFont::Bold) + pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD); + else if (weight >= QFont::DemiBold) + pango_font_description_set_weight(desc, PANGO_WEIGHT_SEMIBOLD); + else if (weight >= QFont::Medium) + pango_font_description_set_weight(desc, PANGO_WEIGHT_MEDIUM); + else if (weight >= QFont::Normal) + pango_font_description_set_weight(desc, PANGO_WEIGHT_NORMAL); + else if (weight >= QFont::Light) + pango_font_description_set_weight(desc, PANGO_WEIGHT_LIGHT); + else if (weight >= QFont::ExtraLight) + pango_font_description_set_weight(desc, PANGO_WEIGHT_ULTRALIGHT); + else + pango_font_description_set_weight(desc, PANGO_WEIGHT_THIN); + + int style = font.style(); + if (style == QFont::StyleItalic) + pango_font_description_set_style(desc, PANGO_STYLE_ITALIC); + else if (style == QFont::StyleOblique) + pango_font_description_set_style(desc, PANGO_STYLE_OBLIQUE); + else + pango_font_description_set_style(desc, PANGO_STYLE_NORMAL); + + char *str = pango_font_description_to_string(desc); + QString name = QString::fromUtf8(str); + pango_font_description_free(desc); + g_free(str); + return name; +} + +static QFont qt_fontFromString(const QString &name) +{ + QFont font; + PangoFontDescription *desc = pango_font_description_from_string(name.toUtf8()); + font.setPointSizeF(static_cast<float>(pango_font_description_get_size(desc)) / PANGO_SCALE); + + QString family = QString::fromUtf8(pango_font_description_get_family(desc)); + if (!family.isEmpty()) + font.setFamily(family); + + const int weight = pango_font_description_get_weight(desc); + font.setWeight(QPlatformFontDatabase::weightFromInteger(weight)); + + PangoStyle style = pango_font_description_get_style(desc); + if (style == PANGO_STYLE_ITALIC) + font.setStyle(QFont::StyleItalic); + else if (style == PANGO_STYLE_OBLIQUE) + font.setStyle(QFont::StyleOblique); + else + font.setStyle(QFont::StyleNormal); + + pango_font_description_free(desc); + return font; +} + +void QGtk3FontDialogHelper::setCurrentFont(const QFont &font) +{ + GtkFontChooser *gtkDialog = GTK_FONT_CHOOSER(d->gtkDialog()); + gtk_font_chooser_set_font(gtkDialog, qt_fontToString(font).toUtf8()); +} + +QFont QGtk3FontDialogHelper::currentFont() const +{ + GtkFontChooser *gtkDialog = GTK_FONT_CHOOSER(d->gtkDialog()); + gchar *name = gtk_font_chooser_get_font(gtkDialog); + QFont font = qt_fontFromString(QString::fromUtf8(name)); + g_free(name); + return font; +} + +void QGtk3FontDialogHelper::onAccepted() +{ + emit currentFontChanged(currentFont()); + emit accept(); + emit fontSelected(currentFont()); +} + +void QGtk3FontDialogHelper::applyOptions() +{ + GtkDialog *gtkDialog = d->gtkDialog(); + const QSharedPointer<QFontDialogOptions> &opts = options(); + + gtk_window_set_title(GTK_WINDOW(gtkDialog), opts->windowTitle().toUtf8()); +} + +QT_END_NAMESPACE + +#include "qgtk3dialoghelpers.moc" |