238 lines
5.8 KiB
C++
238 lines
5.8 KiB
C++
/*
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* Copyright 2007 by Dan Meltzer <hydrogen@notyetimplemented.com>
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* Copyright (C) 2008 by Alexis Ménard <darktears31@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 "windowpreview_p.h"
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#include <QPainter>
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#include <QVarLengthArray>
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#include <QMouseEvent>
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#include <kwindowsystem.h>
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#include <kdebug.h>
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#include <plasma/framesvg.h>
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#include <plasma/windoweffects.h>
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#ifdef Q_WS_X11
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#include <QX11Info>
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#include <X11/Xlib.h>
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#include <fixx11h.h>
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#endif
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namespace Plasma {
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WindowPreview::WindowPreview(QWidget *parent)
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: QWidget(parent),
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m_highlightWindows(false)
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{
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m_background = new Plasma::FrameSvg(this);
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m_background->setImagePath("widgets/frame");
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m_background->setElementPrefix("raised");
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setMouseTracking(true);
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}
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void WindowPreview::setWindowIds(const QList<WId> wids)
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{
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if (!WindowEffects::isEffectAvailable(WindowEffects::WindowPreview)) {
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setMinimumSize(0,0);
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setMaximumSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX);
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ids.clear();
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return;
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}
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//FIXME: need to get rid of this 4 window maximum by using a smarter layout
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if (wids.count() < 5) {
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ids = wids;
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} else {
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ids = wids.mid(0, 4);
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}
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windowSizes = WindowEffects::windowSizes(ids);
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QSize s(sizeHint());
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if (s.isValid()) {
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setFixedSize(sizeHint());
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}
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}
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QList<WId> WindowPreview::windowIds() const
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{
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return ids;
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}
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QSize WindowPreview::sizeHint() const
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{
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if (ids.size() == 0) {
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return QSize();
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}
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if (!windowSizes.size() == 0) {
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windowSizes = WindowEffects::windowSizes(ids);
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}
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int maxHeight = 0;
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int totalWidth = 0;
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foreach (const QSize &s, windowSizes) {
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if (s.height() > maxHeight) {
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maxHeight = s.height();
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}
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totalWidth += s.width();
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}
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QSize s(totalWidth, maxHeight);
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qreal left, top, right, bottom;
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m_background->getMargins(left, top, right, bottom);
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s.scale(WINDOW_WIDTH*windowSizes.size(), WINDOW_HEIGHT, Qt::KeepAspectRatio);
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s = s + QSize(left+right+WINDOW_MARGIN*(windowSizes.size()-1), top+bottom);
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return s;
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}
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bool WindowPreview::isEmpty() const
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{
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foreach (WId id, ids) {
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if (id != 0) {
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return false;
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}
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}
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return true;
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}
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void WindowPreview::setHighlightWindows(const bool highlight)
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{
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m_highlightWindows = highlight;
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}
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bool WindowPreview::highlightWindows() const
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{
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return m_highlightWindows;
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}
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void WindowPreview::setInfo()
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{
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if (isEmpty()) {
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WindowEffects::showWindowThumbnails(parentWidget()->winId());
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return;
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}
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if (windowSizes.size() == 0) {
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windowSizes = WindowEffects::windowSizes(ids);
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}
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if (windowSizes.size() == 0) {
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WindowEffects::showWindowThumbnails(parentWidget()->winId());
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return;
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}
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Q_ASSERT(parentWidget()->isWindow()); // parent must be toplevel
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QSize thumbnailSize = sizeHint();
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thumbnailSize.scale(size(), Qt::KeepAspectRatio);
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m_background->resizeFrame(thumbnailSize);
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qreal left, top, right, bottom;
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m_background->getMargins(left, top, right, bottom);
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QRect thumbnailRect = geometry().adjusted(left, top, -right, -bottom);
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const int numWindows = ids.size();
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m_thumbnailRects.clear();
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int x = thumbnailRect.x();
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foreach (QSize s, windowSizes) {
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s.scale((qreal)(thumbnailRect.width()-WINDOW_MARGIN*(numWindows-1))/numWindows, thumbnailRect.height(), Qt::KeepAspectRatio);
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int y = thumbnailRect.y() + (thumbnailRect.height() - s.height())/2;
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m_thumbnailRects.append(QRect(QPoint(x,y), s));
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x += s.width() + WINDOW_MARGIN;
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}
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WindowEffects::showWindowThumbnails(parentWidget()->winId(), ids, m_thumbnailRects);
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}
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void WindowPreview::paintEvent(QPaintEvent *e)
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{
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Q_UNUSED(e)
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QPainter painter(this);
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qreal left, top, right, bottom;
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m_background->getMargins(left, top, right, bottom);
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foreach (const QRect &r, m_thumbnailRects) {
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//kWarning()<<r;
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m_background->resizeFrame(r.size()+QSize(left+right, top+bottom));
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m_background->paintFrame(&painter, r.topLeft()-pos()-QPoint(left,top));
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}
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}
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void WindowPreview::mousePressEvent(QMouseEvent *event)
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{
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QPoint p = event->pos();
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WId wid = 0;
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for (int i = 0; i < m_thumbnailRects.size(); ++i) {
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if (m_thumbnailRects[i].contains(p)) {
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wid = ids[i];
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break;
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}
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}
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if (wid) {
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emit windowPreviewClicked(wid, event->buttons(), event->modifiers(), event->globalPos());
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}
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}
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void WindowPreview::mouseMoveEvent(QMouseEvent *event)
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{
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if (!m_highlightWindows) {
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return;
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}
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int i = 0;
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foreach (QRect rect, m_thumbnailRects) {
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if (rect.contains(event->pos())) {
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WindowEffects::highlightWindows(effectiveWinId(), QList<WId>()<<effectiveWinId()<<ids[i]);
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return;
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}
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++i;
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}
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WindowEffects::highlightWindows(effectiveWinId(), QList<WId>());
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}
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void WindowPreview::leaveEvent(QEvent *event)
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{
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Q_UNUSED(event)
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if (!m_highlightWindows) {
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return;
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}
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WindowEffects::highlightWindows(effectiveWinId(), QList<WId>());
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}
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} // namespace Plasma
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#include "windowpreview_p.moc"
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