248 lines
6.7 KiB
C++
248 lines
6.7 KiB
C++
#include <QEvent>
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#include <QPainter>
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#include <QMouseEvent>
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#include "gui/rollupwidget.h"
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#include "ui_glspectrumgui.h"
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RollupWidget::RollupWidget(QWidget* parent) :
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QWidget(parent)
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{
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setMinimumSize(250, 150);
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setMaximumSize(400, 200);
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setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
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setBackgroundRole(QPalette::Window);
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setAutoFillBackground(false);
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setAttribute(Qt::WA_OpaquePaintEvent, true);
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}
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int RollupWidget::arrangeRollups()
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{
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QFontMetrics fm(font());
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int pos = fm.height() + 4;
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for(int i = 0; i < children().count(); ++i) {
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QWidget* r = qobject_cast<QWidget*>(children()[i]);
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if(r != NULL) {
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pos += fm.height() + 2;
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if(!r->isHidden()) {
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r->move(2, pos + 3);
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int h = 0;
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if(r->hasHeightForWidth())
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h = r->heightForWidth(width() - 4);
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else h = r->sizeHint().height();
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r->resize(width() - 4, h);
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pos += r->height() + 5;
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}
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}
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}
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setMinimumHeight(pos);
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setMaximumHeight(pos);
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return pos;
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}
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void RollupWidget::paintEvent(QPaintEvent*)
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{
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QPainter p(this);
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QColor frame = palette().highlight().color();
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// Eigenbau
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QFontMetrics fm(font());
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p.setRenderHint(QPainter::Antialiasing, true);
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// Ecken
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p.setPen(Qt::NoPen);
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p.setBrush(palette().base());
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p.drawRect(0, 0, 5, 5);
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p.drawRect(width() - 5, 0, 5, 5);
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p.drawRect(0, height() - 5, 5, 5);
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p.drawRect(width() - 5, height() - 5, 5, 5);
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// Rahmen
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p.setPen(frame);
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p.setBrush(palette().window());
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QRectF r(rect());
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r.adjust(0.5, 0.5, -0.5, -0.5);
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p.drawRoundedRect(r, 3.0, 3.0, Qt::AbsoluteSize);
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// Titel-Hintergrund
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p.setPen(Qt::NoPen);
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p.setBrush(palette().highlight());
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QPainterPath path;
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path.moveTo(1.5, fm.height() + 2.5);
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path.lineTo(width() - 1.5, fm.height() + 2.5);
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path.lineTo(width() - 1.5, 3.5);
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path.arcTo(QRectF(width() - 3.5, 0, 2.5, 2.5), 270, -90);
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path.lineTo(3.5, 1.5);
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path.arcTo(QRectF(1.5, 2.5, 2.5, 2.5), 90, 90);
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p.drawPath(path);
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// Titel-Abschlusslinie
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p.setPen(frame);
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p.drawLine(QPointF(0.5, 2 + fm.height() + 1.5), QPointF(width() - 1.5, 2 + fm.height() + 1.5));
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// Aktiv-Button links
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p.setPen(QPen(palette().windowText().color(), 1.0));
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p.setBrush(palette().light());
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p.drawRoundedRect(QRectF(3.5, 3.5, fm.ascent(), fm.ascent()), 2.0, 2.0, Qt::AbsoluteSize);
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// Schließen-Button rechts
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p.setRenderHint(QPainter::Antialiasing, true);
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p.setPen(QPen(palette().windowText().color(), 1.0));
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p.setBrush(palette().light());
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r = QRectF(width() - 3.5 - fm.ascent(), 3.5, fm.ascent(), fm.ascent());
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p.drawRoundedRect(r, 2.0, 2.0, Qt::AbsoluteSize);
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p.setPen(QPen(palette().windowText().color(), 1.5));
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p.drawLine(r.topLeft() + QPointF(1, 1), r.bottomRight() + QPointF(-1, -1));
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p.drawLine(r.bottomLeft() + QPointF(1, -1), r.topRight() + QPointF(-1, 1));
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// Titel
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p.setPen(palette().highlightedText().color());
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p.drawText(QRect(2 + fm.height(), 2, width() - 4 - 2 * fm.height(), fm.height()),
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fm.elidedText(windowTitle(), Qt::ElideMiddle, width() - 4 - 2 * fm.height(), 0));
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// Rollups
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int pos = fm.height() + 4;
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const QObjectList& c = children();
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QObjectList::ConstIterator w = c.begin();
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QObjectList::ConstIterator n = c.begin();
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for(n = c.begin(); n != c.end(); ++n) {
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if(qobject_cast<QWidget*>(*n) != NULL)
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break;
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}
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for(w = n; w != c.end(); w = n) {
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if(n != c.end())
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++n;
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for(; n != c.end(); ++n) {
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if(qobject_cast<QWidget*>(*n) != NULL)
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break;
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}
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pos += paintRollup(qobject_cast<QWidget*>(*w), pos, &p, n == c.end(), frame);
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}
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}
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int RollupWidget::paintRollup(QWidget* rollup, int pos, QPainter* p, bool last, const QColor& frame)
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{
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QFontMetrics fm(font());
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int height = 1;
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// Titel-Abschlusslinie
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if(!rollup->isHidden()) {
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p->setPen(palette().dark().color());
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p->drawLine(QPointF(1.5, pos + fm.height() + 1.5), QPointF(width() - 1.5, pos + fm.height() + 1.5));
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p->setPen(palette().light().color());
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p->drawLine(QPointF(1.5, pos + fm.height() + 2.5), QPointF(width() - 1.5, pos + fm.height() + 2.5));
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height += 2;
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} else {
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if(!last) {
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p->setPen(frame);
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p->drawLine(QPointF(1.5, pos + fm.height() + 1.5), QPointF(width() - 1.5, pos + fm.height() + 1.5));
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height++;
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}
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}
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// Titel
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p->setPen(palette().windowText().color());
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p->drawText(QRect(2 + fm.height(), pos, width() - 4 - fm.height(), fm.height()),
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fm.elidedText(rollup->windowTitle(), Qt::ElideMiddle, width() - 4 - fm.height(), 0));
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height += fm.height();
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// Ausklapp-Icon
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p->setPen(palette().windowText().color());
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p->setBrush(palette().windowText());
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if(!rollup->isHidden()) {
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QPolygonF a;
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a.append(QPointF(3.5, pos + 2));
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a.append(QPointF(3.5 + fm.ascent(), pos + 2));
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a.append(QPointF(3.5 + fm.ascent() / 2.0, pos + fm.height() - 2));
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p->drawPolygon(a);
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} else {
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QPolygonF a;
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a.append(QPointF(3.5, pos + 2));
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a.append(QPointF(3.5, pos + fm.height() - 2));
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a.append(QPointF(3.5 + fm.ascent(), pos + fm.height() / 2));
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p->drawPolygon(a);
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}
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// Inhalt
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if(!rollup->isHidden() && (!last)) {
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// Rollup-Abschlusslinie
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p->setPen(frame);
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p->drawLine(QPointF(1.5, pos + fm.height() + rollup->height() + 6.5),
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QPointF(width() - 1.5, pos + fm.height() + rollup->height() + 6.5));
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height += rollup->height() + 4;
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}
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return height;
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}
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void RollupWidget::resizeEvent(QResizeEvent* size)
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{
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arrangeRollups();
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QWidget::resizeEvent(size);
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}
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void RollupWidget::mousePressEvent(QMouseEvent* event)
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{
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QFontMetrics fm(font());
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// menu box left
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if(QRectF(3.5, 3.5, fm.ascent(), fm.ascent()).contains(event->pos())) {
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emit customContextMenuRequested(event->pos());
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return;
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}
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// close button right
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if(QRectF(width() - 3.5 - fm.ascent(), 3.5, fm.ascent(), fm.ascent()).contains(event->pos())) {
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close();
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return;
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}
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// check if we need to change a rollup widget
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int pos = fm.height() + 4;
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for(int i = 0; i < children().count(); ++i) {
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QWidget* r = qobject_cast<QWidget*>(children()[i]);
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if(r != NULL) {
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if((event->y() >= pos) && (event->y() < (pos + fm.height() + 3))) {
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if(r->isHidden())
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r->show();
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else r->hide();
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arrangeRollups();
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repaint();
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return;
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} else {
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pos += fm.height() + 2;
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if(!r->isHidden())
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pos += r->height() + 5;
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}
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}
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}
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}
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bool RollupWidget::event(QEvent* event)
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{
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if(event->type() == QEvent::ChildAdded) {
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((QChildEvent*)event)->child()->installEventFilter(this);
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arrangeRollups();
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} else if(event->type() == QEvent::ChildRemoved) {
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((QChildEvent*)event)->child()->removeEventFilter(this);
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arrangeRollups();
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}
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return QWidget::event(event);
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}
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bool RollupWidget::eventFilter(QObject* object, QEvent* event)
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{
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if((event->type() == QEvent::Show) || (event->type() == QEvent::Hide)) {
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if(children().contains(object))
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arrangeRollups();
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} else if(event->type() == QEvent::WindowTitleChange) {
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if(children().contains(object))
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repaint();
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}
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return QWidget::eventFilter(object, event);
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}
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