446 lines
12 KiB
C++
446 lines
12 KiB
C++
/*
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* Copyright 2008 Marco Martin <notmart@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (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 Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "toolbutton.h"
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#include <QStyleOptionGraphicsItem>
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#include <QPainter>
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#include <QDir>
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#include <QToolButton>
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#include <QApplication>
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#include <kicon.h>
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#include <kiconeffect.h>
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#include <kmimetype.h>
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#include <kcolorutils.h>
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#include "theme.h"
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#include "svg.h"
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#include "framesvg.h"
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#include "animator.h"
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#include "paintutils.h"
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#include "private/actionwidgetinterface_p.h"
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namespace Plasma
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{
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class ToolButtonPrivate : public ActionWidgetInterface<ToolButton>
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{
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public:
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ToolButtonPrivate(ToolButton *toolButton)
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: ActionWidgetInterface<ToolButton>(toolButton),
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q(toolButton),
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background(0),
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animId(0),
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fadeIn(false),
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svg(0),
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customFont(false),
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underMouse(false)
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{
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}
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~ToolButtonPrivate()
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{
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delete svg;
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}
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void setPixmap()
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{
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if (imagePath.isEmpty()) {
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delete svg;
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svg = 0;
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return;
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}
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KMimeType::Ptr mime = KMimeType::findByPath(absImagePath);
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QPixmap pm;
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if (mime->is("image/svg+xml") || mime->is("image/svg+xml-compressed")) {
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if (!svg || svg->imagePath() != absImagePath) {
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delete svg;
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svg = new Svg();
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svg->setImagePath(imagePath);
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QObject::connect(svg, SIGNAL(repaintNeeded()), q, SLOT(setPixmap()));
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if (!svgElement.isNull()) {
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svg->setContainsMultipleImages(true);
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}
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}
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//QPainter p(&pm);
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if (!svgElement.isNull() && svg->hasElement(svgElement)) {
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QSizeF elementSize = svg->elementSize(svgElement);
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float scale = pm.width() / qMax(elementSize.width(), elementSize.height());
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svg->resize(svg->size() * scale);
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pm = svg->pixmap(svgElement);
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} else {
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svg->resize(pm.size());
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pm = svg->pixmap();
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}
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} else {
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delete svg;
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svg = 0;
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pm = QPixmap(absImagePath);
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}
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static_cast<QToolButton*>(q->widget())->setIcon(KIcon(pm));
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}
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void syncActiveRect();
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void syncBorders();
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void animationUpdate(qreal progress);
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ToolButton *q;
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FrameSvg *background;
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int animId;
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bool fadeIn;
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qreal opacity;
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QRectF activeRect;
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QString imagePath;
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QString absImagePath;
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Svg *svg;
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QString svgElement;
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bool customFont;
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bool underMouse;
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};
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void ToolButtonPrivate::syncActiveRect()
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{
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background->setElementPrefix("normal");
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qreal left, top, right, bottom;
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background->getMargins(left, top, right, bottom);
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background->setElementPrefix("active");
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qreal activeLeft, activeTop, activeRight, activeBottom;
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background->getMargins(activeLeft, activeTop, activeRight, activeBottom);
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activeRect = QRectF(QPointF(0, 0), q->size());
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activeRect.adjust(left - activeLeft, top - activeTop,
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-(right - activeRight), -(bottom - activeBottom));
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background->setElementPrefix("normal");
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}
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void ToolButtonPrivate::syncBorders()
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{
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//set margins from the normal element
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qreal left, top, right, bottom;
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background->setElementPrefix("normal");
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background->getMargins(left, top, right, bottom);
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q->setContentsMargins(left, top, right, bottom);
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//calc the rect for the over effect
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syncActiveRect();
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}
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void ToolButtonPrivate::animationUpdate(qreal progress)
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{
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if (progress == 1) {
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animId = 0;
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fadeIn = true;
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}
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opacity = fadeIn ? progress : 1 - progress;
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// explicit update
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q->update();
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}
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ToolButton::ToolButton(QGraphicsWidget *parent)
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: QGraphicsProxyWidget(parent),
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d(new ToolButtonPrivate(this))
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{
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d->background = new FrameSvg(this);
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d->background->setImagePath("widgets/button");
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d->background->setCacheAllRenderedFrames(true);
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d->background->setElementPrefix("normal");
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QToolButton *native = new QToolButton;
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connect(native, SIGNAL(clicked()), this, SIGNAL(clicked()));
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connect(native, SIGNAL(pressed()), this, SIGNAL(pressed()));
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connect(native, SIGNAL(released()), this, SIGNAL(released()));
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setWidget(native);
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native->setAttribute(Qt::WA_NoSystemBackground);
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native->setAutoRaise(true);
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d->syncBorders();
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setAcceptHoverEvents(true);
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connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()), SLOT(syncBorders()));
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}
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ToolButton::~ToolButton()
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{
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delete d;
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}
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void ToolButton::setAction(QAction *action)
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{
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d->setAction(action);
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}
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QAction *ToolButton::action() const
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{
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return d->action;
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}
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void ToolButton::setAutoRaise(bool raise)
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{
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nativeWidget()->setAutoRaise(raise);
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}
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bool ToolButton::autoRaise() const
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{
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return nativeWidget()->autoRaise();
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}
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void ToolButton::setText(const QString &text)
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{
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static_cast<QToolButton*>(widget())->setText(text);
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updateGeometry();
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}
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QString ToolButton::text() const
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{
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return static_cast<QToolButton*>(widget())->text();
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}
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void ToolButton::setImage(const QString &path)
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{
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if (d->imagePath == path) {
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return;
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}
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delete d->svg;
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d->svg = 0;
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d->imagePath = path;
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bool absolutePath = !path.isEmpty() &&
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#ifdef Q_WS_WIN
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!QDir::isRelativePath(path)
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#else
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(path[0] == '/' || path.startsWith(QLatin1String(":/")))
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#endif
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;
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if (absolutePath) {
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d->absImagePath = path;
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} else {
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//TODO: package support
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d->absImagePath = Theme::defaultTheme()->imagePath(path);
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}
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d->setPixmap();
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}
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void ToolButton::setImage(const QString &path, const QString &elementid)
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{
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d->svgElement = elementid;
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setImage(path);
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}
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void ToolButton::setIcon(const QIcon &icon)
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{
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nativeWidget()->setIcon(icon);
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}
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QIcon ToolButton::icon() const
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{
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return nativeWidget()->icon();
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}
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QString ToolButton::image() const
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{
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return d->imagePath;
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}
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bool ToolButton::isDown() const
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{
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return nativeWidget()->isDown();
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}
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void ToolButton::setStyleSheet(const QString &stylesheet)
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{
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widget()->setStyleSheet(stylesheet);
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}
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QString ToolButton::styleSheet()
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{
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return widget()->styleSheet();
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}
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QToolButton *ToolButton::nativeWidget() const
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{
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return static_cast<QToolButton*>(widget());
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}
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void ToolButton::resizeEvent(QGraphicsSceneResizeEvent *event)
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{
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d->setPixmap();
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if (d->background) {
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//resize all four panels
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d->background->setElementPrefix("pressed");
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d->background->resizeFrame(size());
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d->background->setElementPrefix("focus");
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d->background->resizeFrame(size());
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d->syncActiveRect();
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d->background->setElementPrefix("active");
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d->background->resizeFrame(d->activeRect.size());
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d->background->setElementPrefix("normal");
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d->background->resizeFrame(size());
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}
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QGraphicsProxyWidget::resizeEvent(event);
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}
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void ToolButton::paint(QPainter *painter,
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const QStyleOptionGraphicsItem *option,
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QWidget *widget)
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{
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if (!styleSheet().isNull()) {
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QGraphicsProxyWidget::paint(painter, option, widget);
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return;
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}
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QToolButton *button = nativeWidget();
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QStyleOptionToolButton buttonOpt;
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buttonOpt.initFrom(button);
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buttonOpt.icon = button->icon();
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buttonOpt.text = button->text();
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buttonOpt.iconSize = button->iconSize();
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buttonOpt.toolButtonStyle = button->toolButtonStyle();
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if (button->isEnabled() && (d->animId || !button->autoRaise() || d->underMouse || (buttonOpt.state & QStyle::State_On) || button->isChecked())) {
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if (button->isDown() || (buttonOpt.state & QStyle::State_On) || button->isChecked()) {
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d->background->setElementPrefix("pressed");
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} else {
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d->background->setElementPrefix("normal");
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}
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d->background->resizeFrame(size());
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if (d->animId) {
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QPixmap buffer = d->background->framePixmap();
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QPainter bufferPainter(&buffer);
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bufferPainter.setCompositionMode(QPainter::CompositionMode_DestinationIn);
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QColor alphaColor(Qt::black);
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alphaColor.setAlphaF(qMin(qreal(0.95), d->opacity));
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bufferPainter.fillRect(buffer.rect(), alphaColor);
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bufferPainter.end();
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painter->drawPixmap(QPoint(0,0), buffer);
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buttonOpt.palette.setColor(QPalette::ButtonText, KColorUtils::mix(Plasma::Theme::defaultTheme()->color(Plasma::Theme::ButtonTextColor), Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor), 1-d->opacity));
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} else {
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d->background->paintFrame(painter);
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buttonOpt.palette.setColor(QPalette::ButtonText, Plasma::Theme::defaultTheme()->color(Plasma::Theme::ButtonTextColor));
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}
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} else {
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buttonOpt.palette.setColor(QPalette::ButtonText, Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor));
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}
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QFont widgetFont;
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if (d->customFont) {
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widgetFont = font();
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} else {
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widgetFont = Plasma::Theme::defaultTheme()->font(Plasma::Theme::DefaultFont);
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}
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buttonOpt.font = widgetFont;
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painter->setFont(widgetFont);
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button->style()->drawControl(QStyle::CE_ToolButtonLabel, &buttonOpt, painter, button);
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}
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void ToolButton::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
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{
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d->underMouse = true;
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if (nativeWidget()->isDown() || !nativeWidget()->autoRaise()) {
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return;
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}
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const int FadeInDuration = 75;
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if (d->animId) {
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Plasma::Animator::self()->stopCustomAnimation(d->animId);
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}
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d->animId = Plasma::Animator::self()->customAnimation(
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40 / (1000 / FadeInDuration), FadeInDuration,
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Plasma::Animator::LinearCurve, this, "animationUpdate");
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d->background->setElementPrefix("active");
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QGraphicsProxyWidget::hoverEnterEvent(event);
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}
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void ToolButton::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
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{
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d->underMouse = false;
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if (nativeWidget()->isDown() || !nativeWidget()->autoRaise()) {
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return;
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}
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const int FadeOutDuration = 150;
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if (d->animId) {
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Plasma::Animator::self()->stopCustomAnimation(d->animId);
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}
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d->fadeIn = false;
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d->animId = Plasma::Animator::self()->customAnimation(
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40 / (1000 / FadeOutDuration), FadeOutDuration,
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Plasma::Animator::LinearCurve, this, "animationUpdate");
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d->background->setElementPrefix("active");
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QGraphicsProxyWidget::hoverLeaveEvent(event);
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}
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void ToolButton::changeEvent(QEvent *event)
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{
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if (event->type() == QEvent::FontChange) {
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d->customFont = true;
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} else if (event->type() == QEvent::EnabledChange && !isEnabled()) {
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d->underMouse = false;
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}
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QGraphicsProxyWidget::changeEvent(event);
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}
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QSizeF ToolButton::sizeHint(Qt::SizeHint which, const QSizeF & constraint) const
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{
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QSizeF hint = QGraphicsProxyWidget::sizeHint(which, constraint);
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return hint;
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}
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} // namespace Plasma
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#include <toolbutton.moc>
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