wireshark/ui/qt/widgets/stock_icon_tool_button.cpp

82 lines
2.1 KiB
C++

/* stock_icon_tool_button.cpp
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <ui/qt/widgets/stock_icon_tool_button.h>
#include <ui/qt/utils/stock_icon.h>
#include <QApplication>
#include <QEvent>
#include <QMenu>
#include <QMouseEvent>
// We want nice icons that render correctly, and that are responsive
// when the user hovers and clicks them.
// Using setIcon renders correctly on normal and retina displays. It is
// not completely responsive, particularly on macOS.
// Calling setStyleSheet is responsive, but does not render correctly on
// retina displays: https://bugreports.qt.io/browse/QTBUG-36825
// Subclass QToolButton, which lets us catch events and set icons as needed.
StockIconToolButton::StockIconToolButton(QWidget * parent, QString stock_icon_name) :
QToolButton(parent)
{
setStockIcon(stock_icon_name);
}
void StockIconToolButton::setIconMode(QIcon::Mode mode)
{
QIcon mode_icon;
QList<QIcon::State> states = QList<QIcon::State>() << QIcon::Off << QIcon::On;
foreach (QIcon::State state, states) {
foreach (QSize size, base_icon_.availableSizes(mode, state)) {
mode_icon.addPixmap(base_icon_.pixmap(size, mode, state), mode, state);
}
}
setIcon(mode_icon);
}
void StockIconToolButton::setStockIcon(QString icon_name)
{
if (!icon_name.isEmpty()) {
icon_name_ = icon_name;
}
if (icon_name_.isEmpty()) {
return;
}
base_icon_ = StockIcon(icon_name_);
setIconMode();
}
bool StockIconToolButton::event(QEvent *event)
{
switch (event->type()) {
case QEvent::Enter:
if (isEnabled()) {
setIconMode(QIcon::Active);
}
break;
case QEvent::MouseButtonPress:
if (isEnabled()) {
setIconMode(QIcon::Selected);
}
break;
case QEvent::MouseButtonRelease:
setIconMode();
break;
case QEvent::ApplicationPaletteChange:
setStockIcon();
break;
default:
break;
}
return QToolButton::event(event);
}