131 lines
3.9 KiB
C++
131 lines
3.9 KiB
C++
/* This file is part of Clementine.
|
|
Copyright 2010, David Sansome <me@davidsansome.com>
|
|
|
|
Clementine is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Clementine 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Clementine. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "tooltipactionwidget.h"
|
|
#include "core/logging.h"
|
|
|
|
#include <QAction>
|
|
#include <QMouseEvent>
|
|
#include <QPainter>
|
|
|
|
const int TooltipActionWidget::kBorder = 16;
|
|
const int TooltipActionWidget::kSpacing = 6;
|
|
const int TooltipActionWidget::kTopPadding = 3;
|
|
const int TooltipActionWidget::kFadeDurationMsec = 200;
|
|
|
|
TooltipActionWidget::TooltipActionWidget(QWidget* parent)
|
|
: QWidget(parent),
|
|
kTextHeight(fontMetrics().height()),
|
|
shortcut_width_(0),
|
|
description_width_(0)
|
|
{
|
|
setMouseTracking(true);
|
|
}
|
|
|
|
void TooltipActionWidget::SetActions(QList<QAction*> actions) {
|
|
actions_ = actions;
|
|
action_opacities_.clear();
|
|
|
|
int h = kTopPadding + kTextHeight * actions.count();
|
|
shortcut_width_ = 0;
|
|
description_width_ = 0;
|
|
|
|
foreach (const QAction* action, actions) {
|
|
shortcut_width_ =
|
|
qMax(shortcut_width_,
|
|
fontMetrics().width(action->shortcut().toString(QKeySequence::NativeText)));
|
|
description_width_ =
|
|
qMax(description_width_, fontMetrics().width(action->text()));
|
|
|
|
QTimeLine* timeline = new QTimeLine(kFadeDurationMsec, this);
|
|
connect(timeline, SIGNAL(valueChanged(qreal)), SLOT(update()));
|
|
action_opacities_ << timeline;
|
|
}
|
|
|
|
size_hint_ = QSize(
|
|
kBorder*2 + shortcut_width_ + kSpacing + description_width_, h);
|
|
|
|
updateGeometry();
|
|
update();
|
|
}
|
|
|
|
void TooltipActionWidget::paintEvent(QPaintEvent*) {
|
|
int y = kTopPadding;
|
|
|
|
QPainter p(this);
|
|
p.setPen(palette().color(QPalette::Text));
|
|
|
|
for (int i=0 ; i<actions_.count() ; ++i) {
|
|
const QAction* action = actions_[i];
|
|
const QTimeLine* timeline = action_opacities_[i];
|
|
|
|
const QRect shortcut_rect(kBorder, y, shortcut_width_, kTextHeight);
|
|
const QRect description_rect(shortcut_rect.right() + kSpacing, y,
|
|
description_width_, kTextHeight);
|
|
|
|
const qreal shortcut_opacity = 0.4 + 0.3 * timeline->currentValue();
|
|
const qreal description_opacity = 0.7 + 0.3 * timeline->currentValue();
|
|
|
|
p.setOpacity(shortcut_opacity);
|
|
p.drawText(shortcut_rect, Qt::AlignRight | Qt::AlignVCenter,
|
|
action->shortcut().toString(QKeySequence::NativeText));
|
|
|
|
p.setOpacity(description_opacity);
|
|
p.drawText(description_rect, Qt::AlignVCenter, action->text());
|
|
|
|
y += kTextHeight;
|
|
}
|
|
}
|
|
|
|
int TooltipActionWidget::ActionAt(const QPoint& pos) const {
|
|
return (pos.y() - kTopPadding) / kTextHeight;
|
|
}
|
|
|
|
void TooltipActionWidget::mouseMoveEvent(QMouseEvent* e) {
|
|
const int action = ActionAt(e->pos());
|
|
|
|
for (int i=0 ; i<actions_.count() ; ++i) {
|
|
if (i == action) {
|
|
StartAnimation(i, QTimeLine::Forward);
|
|
} else {
|
|
StartAnimation(i, QTimeLine::Backward);
|
|
}
|
|
}
|
|
}
|
|
|
|
void TooltipActionWidget::leaveEvent(QEvent* e) {
|
|
for (int i=0 ; i<actions_.count() ; ++i) {
|
|
StartAnimation(i, QTimeLine::Backward);
|
|
}
|
|
}
|
|
|
|
void TooltipActionWidget::StartAnimation(int i, QTimeLine::Direction direction) {
|
|
QTimeLine* timeline = action_opacities_[i];
|
|
if (timeline->direction() != direction) {
|
|
timeline->setDirection(direction);
|
|
if (timeline->state() != QTimeLine::Running)
|
|
timeline->resume();
|
|
}
|
|
}
|
|
|
|
void TooltipActionWidget::mousePressEvent(QMouseEvent* e) {
|
|
const int action = ActionAt(e->pos());
|
|
if (action >= 0 && action < actions_.count()) {
|
|
actions_[action]->trigger();
|
|
}
|
|
}
|