forked from osmocom/wireshark
125 lines
3.9 KiB
C++
125 lines
3.9 KiB
C++
/* stock_icon_tool_button.cpp
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "stock_icon_tool_button.h"
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#include "stock_icon.h"
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#include <QApplication>
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#include <QEvent>
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#include <QMenu>
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#include <QMouseEvent>
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// We want nice icons that render correctly, and that are responsive
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// when the user hovers and clicks them.
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// Using setIcon renders correctly on normal and retina displays. It is
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// not completely responsive, particularly on macOS.
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// Calling setStyleSheet is responsive, but does not render correctly on
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// retina displays: https://bugreports.qt.io/browse/QTBUG-36825
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// Subclass QToolButton, which lets us catch events and set icons as needed.
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StockIconToolButton::StockIconToolButton(QWidget * parent, QString stock_icon_name) :
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QToolButton(parent),
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leave_timer_(0)
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{
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if (!stock_icon_name.isEmpty()) {
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setStockIcon(stock_icon_name);
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}
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}
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void StockIconToolButton::setIconMode(QIcon::Mode mode)
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{
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QIcon mode_icon;
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QList<QIcon::State> states = QList<QIcon::State>() << QIcon::Off << QIcon::On;
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foreach (QIcon::State state, states) {
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foreach (QSize size, base_icon_.availableSizes(mode, state)) {
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mode_icon.addPixmap(base_icon_.pixmap(size, mode, state), mode, state);
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}
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}
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setIcon(mode_icon);
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}
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void StockIconToolButton::setStockIcon(QString icon_name)
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{
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base_icon_ = StockIcon(icon_name);
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setIconMode();
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}
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bool StockIconToolButton::event(QEvent *event)
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{
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switch (event->type()) {
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case QEvent::Enter:
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if (isEnabled()) {
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setIconMode(QIcon::Active);
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if (leave_timer_ > 0) killTimer(leave_timer_);
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leave_timer_ = startTimer(leave_interval_);
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}
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break;
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case QEvent::MouseButtonPress:
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if (isEnabled()) {
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setIconMode(QIcon::Selected);
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}
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break;
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case QEvent::Leave:
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if (leave_timer_ > 0) killTimer(leave_timer_);
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leave_timer_ = 0;
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// Fall through
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case QEvent::MouseButtonRelease:
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setIconMode();
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break;
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case QEvent::Timer:
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{
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// We can lose QEvent::Leave, QEvent::HoverLeave and underMouse()
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// on macOS if a tooltip appears:
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// https://bugreports.qt.io/browse/QTBUG-46379
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// Work around the issue by periodically checking the mouse
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// position and scheduling a fake leave event when the mouse
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// moves away.
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QTimerEvent *te = (QTimerEvent *) event;
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bool under_mouse = rect().contains(mapFromGlobal(QCursor::pos()));
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if (te->timerId() == leave_timer_ && !under_mouse) {
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killTimer(leave_timer_);
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leave_timer_ = 0;
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QMouseEvent *me = new QMouseEvent(QEvent::Leave, mapFromGlobal(QCursor::pos()), Qt::NoButton, Qt::NoButton, Qt::NoModifier);
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QApplication::postEvent(this, me);
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}
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break;
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}
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default:
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break;
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}
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return QToolButton::event(event);
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}
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/*
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* Editor modelines
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*
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* Local Variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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