/* * Copyright 2008 Aaron Seigo * Copyright 2008 Marco Martin * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Library General Public License as * published by the Free Software Foundation; either version 2, or * (at your option) any later version. * * This program 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 Library General Public * License along with this program; if not, write to the * Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include "pushbutton.h" #include #include #include #include #include #include #include #include #include "animator.h" #include "animations/animation.h" #include "framesvg.h" #include "paintutils.h" #include "private/actionwidgetinterface_p.h" #include "graphicsview/private/focusindicator_p.h" #include "private/themedwidgetinterface_p.h" #include "theme.h" namespace Plasma { class PushButtonPrivate : public ActionWidgetInterface { public: PushButtonPrivate(PushButton *pushButton) : ActionWidgetInterface(pushButton), background(0), fadeIn(false), svg(0) { } ~PushButtonPrivate() { delete svg; } void setPixmap() { if (imagePath.isEmpty()) { delete svg; svg = 0; return; } QMimeDatabase db; QMimeType mime = db.mimeTypeForFile(absImagePath); QPixmap pm; if (mime.inherits("image/svg+xml") || mime.inherits("image/svg+xml-compressed")) { if (!svg || svg->imagePath() != absImagePath) { delete svg; svg = new Svg(); svg->setImagePath(imagePath); QObject::connect(svg, SIGNAL(repaintNeeded()), q, SLOT(setPixmap())); if (!svgElement.isNull()) { svg->setContainsMultipleImages(true); } } //QPainter p(&pm); if (!svgElement.isEmpty() && svg->hasElement(svgElement)) { svg->resize(); QSizeF elementSize = svg->elementSize(svgElement); float scale = q->nativeWidget()->iconSize().width() / qMax(elementSize.width(), elementSize.height()); svg->resize(elementSize * scale); pm = svg->pixmap(svgElement); } else { svg->resize(q->nativeWidget()->iconSize()); pm = svg->pixmap(); } } else { delete svg; svg = 0; pm = QPixmap(absImagePath); } static_cast(q->widget())->setIcon(QIcon(pm)); } void pressedChanged() { if (q->nativeWidget()->isDown() || q->nativeWidget()->isChecked()) { focusIndicator->animateVisibility(false); } else { focusIndicator->animateVisibility(true); } } void syncFrame() { if (background) { //resize all panels background->setElementPrefix("pressed"); background->resizeFrame(q->size()); syncActiveRect(); background->setElementPrefix("normal"); background->resizeFrame(q->size()); hoverAnimation->setProperty("startPixmap", background->framePixmap()); background->setElementPrefix("active"); background->resizeFrame(activeRect.size()); hoverAnimation->setProperty("targetPixmap", background->framePixmap()); } } void syncActiveRect(); void syncBorders(); FrameSvg *background; bool fadeIn; qreal opacity; QRectF activeRect; Animation *hoverAnimation; FocusIndicator *focusIndicator; QString imagePath; QString absImagePath; Svg *svg; QString svgElement; }; void PushButtonPrivate::syncActiveRect() { background->setElementPrefix("normal"); qreal left, top, right, bottom; background->getMargins(left, top, right, bottom); background->setElementPrefix("active"); qreal activeLeft, activeTop, activeRight, activeBottom; background->getMargins(activeLeft, activeTop, activeRight, activeBottom); activeRect = QRectF(QPointF(0, 0), q->size()); activeRect.adjust(left - activeLeft, top - activeTop, -(right - activeRight), -(bottom - activeBottom)); background->setElementPrefix("normal"); } void PushButtonPrivate::syncBorders() { //set margins from the normal element qreal left, top, right, bottom; background->setElementPrefix("normal"); background->getMargins(left, top, right, bottom); q->setContentsMargins(left, top, right, bottom); //calc the rect for the over effect syncActiveRect(); } PushButton::PushButton(QGraphicsWidget *parent) : QGraphicsProxyWidget(parent), d(new PushButtonPrivate(this)) { d->background = new FrameSvg(this); d->background->setImagePath("widgets/button"); d->background->setCacheAllRenderedFrames(true); d->background->setElementPrefix("normal"); d->hoverAnimation = Animator::create(Animator::PixmapTransitionAnimation); d->hoverAnimation->setTargetWidget(this); KPushButton *native = new KPushButton; connect(native, SIGNAL(pressed()), this, SIGNAL(pressed())); connect(native, SIGNAL(pressed()), this, SLOT(pressedChanged())); connect(native, SIGNAL(released()), this, SIGNAL(released())); connect(native, SIGNAL(released()), this, SLOT(pressedChanged())); connect(native, SIGNAL(clicked()), this, SIGNAL(clicked())); connect(native, SIGNAL(toggled(bool)), this, SIGNAL(toggled(bool))); setWidget(native); native->setAttribute(Qt::WA_NoSystemBackground); native->setWindowIcon(QIcon()); setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum); d->focusIndicator = new FocusIndicator(this, d->background); d->syncBorders(); setAcceptHoverEvents(true); connect(d->background, SIGNAL(repaintNeeded()), SLOT(syncBorders())); d->initTheming(); d->syncFrame(); } PushButton::~PushButton() { delete d; } void PushButton::setText(const QString &text) { static_cast(widget())->setText(text); updateGeometry(); } QString PushButton::text() const { return static_cast(widget())->text(); } void PushButton::setImage(const QString &path) { if (d->imagePath == path) { return; } delete d->svg; d->svg = 0; d->imagePath = path; bool absolutePath = !path.isEmpty() && #ifdef Q_WS_WIN !QDir::isRelativePath(path) #else (path[0] == '/' || path.startsWith(QLatin1String(":/"))) #endif ; if (absolutePath) { d->absImagePath = path; } else { //TODO: package support d->absImagePath = Theme::defaultTheme()->imagePath(path); } d->setPixmap(); } void PushButton::setImage(const QString &path, const QString &elementid) { d->svgElement = elementid; setImage(path); } QString PushButton::image() const { return d->imagePath; } void PushButton::setStyleSheet(const QString &stylesheet) { d->focusIndicator->setVisible(stylesheet.isEmpty()); widget()->setStyleSheet(stylesheet); } QString PushButton::styleSheet() { return widget()->styleSheet(); } void PushButton::setAction(QAction *action) { d->setAction(action); } QAction *PushButton::action() const { return d->action; } void PushButton::setIcon(const QIcon &icon) { nativeWidget()->setIcon(icon); } QIcon PushButton::icon() const { return nativeWidget()->icon(); } void PushButton::setCheckable(bool checkable) { nativeWidget()->setCheckable(checkable); } bool PushButton::isCheckable() const { return nativeWidget()->isCheckable(); } void PushButton::setChecked(bool checked) { nativeWidget()->setChecked(checked); } void PushButton::click() { nativeWidget()->animateClick(); } bool PushButton::isChecked() const { return nativeWidget()->isChecked(); } bool PushButton::isDown() const { return nativeWidget()->isDown(); } KPushButton *PushButton::nativeWidget() const { return static_cast(widget()); } void PushButton::resizeEvent(QGraphicsSceneResizeEvent *event) { d->setPixmap(); d->syncFrame(); QGraphicsProxyWidget::resizeEvent(event); } void PushButton::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) { if (!styleSheet().isNull() || Theme::defaultTheme()->useNativeWidgetStyle()) { QGraphicsProxyWidget::paint(painter, option, widget); return; } QPixmap bufferPixmap; //Normal button, pressed or not if (isEnabled()) { if (nativeWidget()->isDown() || nativeWidget()->isChecked()) { d->background->setElementPrefix("pressed"); } else { d->background->setElementPrefix("normal"); } //flat or disabled } else if (!isEnabled() || nativeWidget()->isFlat()) { bufferPixmap = QPixmap(rect().size().toSize()); bufferPixmap.fill(Qt::transparent); QPainter buffPainter(&bufferPixmap); d->background->paintFrame(&buffPainter); buffPainter.setCompositionMode(QPainter::CompositionMode_DestinationIn); buffPainter.fillRect(bufferPixmap.rect(), QColor(0, 0, 0, 128)); painter->drawPixmap(0, 0, bufferPixmap); } //if is under mouse draw the animated glow overlay if (!nativeWidget()->isDown() && !nativeWidget()->isChecked() && isEnabled() && acceptHoverEvents() && d->background->hasElementPrefix("active")) { if (d->hoverAnimation->state() == QAbstractAnimation::Running && !isUnderMouse() && !nativeWidget()->isDefault()) { d->background->setElementPrefix("active"); d->background->paintFrame(painter, d->activeRect.topLeft()); } else { painter->drawPixmap( d->activeRect.topLeft(), d->hoverAnimation->property("currentPixmap").value()); } } else if (isEnabled()) { d->background->paintFrame(painter); } painter->setPen(Plasma::Theme::defaultTheme()->color(Theme::ButtonTextColor)); if (nativeWidget()->isDown()) { painter->translate(QPoint(1, 1)); } QRectF rect = contentsRect(); if (!nativeWidget()->icon().isNull()) { const qreal iconSize = qMin(rect.width(), rect.height()); QPixmap iconPix = nativeWidget()->icon().pixmap(iconSize); if (!isEnabled()) { KIconEffect *effect = KIconLoader::global()->iconEffect(); iconPix = effect->apply(iconPix, KIconLoader::Toolbar, KIconLoader::DisabledState); } QRect pixmapRect; if (nativeWidget()->text().isEmpty()) { pixmapRect = nativeWidget()->style()->alignedRect(option->direction, Qt::AlignCenter, iconPix.size(), rect.toRect()); } else { pixmapRect = nativeWidget()->style()->alignedRect(option->direction, Qt::AlignLeft|Qt::AlignVCenter, iconPix.size(), rect.toRect()); } painter->drawPixmap(pixmapRect.topLeft(), iconPix); if (option->direction == Qt::LeftToRight) { rect.adjust(rect.height(), 0, 0, 0); } else { rect.adjust(0, 0, -rect.height(), 0); } } QFontMetricsF fm(font()); // If the height is too small increase the Height of the button to shall the whole text #192988 if (rect.height() < fm.height()) { rect.setHeight(fm.height()); rect.moveTop(boundingRect().center().y() - rect.height() / 2); } // If there is not enough room for the text make it to fade out if (rect.width() < fm.width(nativeWidget()->text())) { if (bufferPixmap.isNull()) { bufferPixmap = QPixmap(rect.size().toSize()); } bufferPixmap.fill(Qt::transparent); QPainter p(&bufferPixmap); p.setPen(painter->pen()); p.setFont(font()); // Create the alpha gradient for the fade out effect QLinearGradient alphaGradient(0, 0, 1, 0); alphaGradient.setCoordinateMode(QGradient::ObjectBoundingMode); if (option->direction == Qt::LeftToRight) { alphaGradient.setColorAt(0, QColor(0, 0, 0, 255)); alphaGradient.setColorAt(1, QColor(0, 0, 0, 0)); p.drawText(bufferPixmap.rect(), Qt::AlignLeft|Qt::AlignVCenter|Qt::TextShowMnemonic, nativeWidget()->text()); } else { alphaGradient.setColorAt(0, QColor(0, 0, 0, 0)); alphaGradient.setColorAt(1, QColor(0, 0, 0, 255)); p.drawText(bufferPixmap.rect(), Qt::AlignRight|Qt::AlignVCenter|Qt::TextShowMnemonic, nativeWidget()->text()); } p.setCompositionMode(QPainter::CompositionMode_DestinationIn); p.fillRect(bufferPixmap.rect(), alphaGradient); painter->drawPixmap(rect.topLeft(), bufferPixmap); } else { painter->setFont(font()); painter->drawText(rect, Qt::AlignCenter|Qt::TextShowMnemonic, nativeWidget()->text()); } } void PushButton::hoverEnterEvent(QGraphicsSceneHoverEvent *event) { if (nativeWidget()->isDown() || d->background->hasElementPrefix("hover")) { return; } d->hoverAnimation->setProperty("duration", 75); d->background->setElementPrefix("normal"); d->hoverAnimation->setProperty("startPixmap", d->background->framePixmap()); d->background->setElementPrefix("active"); d->hoverAnimation->setProperty("targetPixmap", d->background->framePixmap()); d->hoverAnimation->start(); QGraphicsProxyWidget::hoverEnterEvent(event); } void PushButton::changeEvent(QEvent *event) { d->changeEvent(event); QGraphicsProxyWidget::changeEvent(event); } void PushButton::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) { if (nativeWidget()->isDown() || d->background->hasElementPrefix("hover")) { return; } d->hoverAnimation->setProperty("duration", 150); d->background->setElementPrefix("active"); d->hoverAnimation->setProperty("startPixmap", d->background->framePixmap()); d->background->setElementPrefix("normal"); d->hoverAnimation->setProperty("targetPixmap", d->background->framePixmap()); d->hoverAnimation->start(); QGraphicsProxyWidget::hoverLeaveEvent(event); } QSizeF PushButton::sizeHint(Qt::SizeHint which, const QSizeF & constraint) const { QSizeF hint = QGraphicsProxyWidget::sizeHint(which, constraint); if (hint.isEmpty()) { return hint; } //replace the native margin with the Svg one QStyleOption option; option.initFrom(nativeWidget()); int nativeMargin = nativeWidget()->style()->pixelMetric(QStyle::PM_ButtonMargin, &option, nativeWidget()); qreal left, top, right, bottom; d->background->getMargins(left, top, right, bottom); hint = hint - QSize(nativeMargin, nativeMargin) + QSize(left+right, top+bottom); return hint; } } // namespace Plasma #include "moc_pushbutton.cpp"