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Improve visual appearance of DetailsWidget

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* Make toolswidget appear on hover.
 * Use a cached gradient in the background.
 * Remove layout fixup as that does not help on Linux and Windows
   anymore. Reevaluate after testing on Mac.

Reviewed-by: dt
This commit is contained in:
Tobias Hunger
2009-11-30 15:16:05 +01:00
parent 7c7ce13ac0
commit 7d50367ba4
2 changed files with 135 additions and 109 deletions
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212
src/libs/utils/detailswidget.cpp
View File

@@ -9,31 +9,41 @@
using namespace Utils;
DetailsWidget::DetailsWidget(QWidget *parent)
: QWidget(parent),
m_summaryLabel(new QLabel(this)),
m_detailsButton(new DetailsButton(this)),
m_widget(0),
m_toolWidget(0),
m_grid(new QGridLayout(this))
namespace {
const int MARGIN=8;
}
// This widget is using a grid layout and places the items
// in the following way:
//
// +------------+-------------------------+---------------+
// + toolWidget | summaryLabel | detailsButton |
// +------------+-------------------------+---------------+
// | | widget |
// +------------+-------------------------+---------------+
DetailsWidget::DetailsWidget(QWidget *parent) :
QWidget(parent),
m_detailsButton(new DetailsButton(this)),
m_grid(new QGridLayout(this)),
m_summaryLabel(new QLabel(this)),
m_toolWidget(0),
m_widget(0),
m_hovered(false)
{
m_grid->setContentsMargins(4, 3, 4, 3);
m_summaryLabel->setTextInteractionFlags(Qt::TextSelectableByMouse);
m_summaryLabel->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
m_summaryLabel->setContentsMargins(MARGIN, MARGIN, MARGIN, MARGIN);
m_grid->addWidget(m_summaryLabel, 0, 0);
m_grid->addWidget(m_detailsButton, 0, 2, 1, 1, Qt::AlignBottom);
m_grid->setContentsMargins(0, 0, 0, 0);
m_grid->setSpacing(0);
m_grid->addWidget(m_summaryLabel, 0, 1);
m_grid->addWidget(m_detailsButton, 0, 2, 1, 1, Qt::AlignCenter);
m_dummyWidget = new QWidget(this);
m_dummyWidget->setMaximumHeight(4);
m_dummyWidget->setMaximumHeight(4);
m_dummyWidget->setVisible(false);
m_grid->addWidget(m_dummyWidget, 2, 0, 1, 1);
m_detailsButton->setEnabled(false);
connect(m_detailsButton, SIGNAL(clicked()),
this, SLOT(detailsButtonClicked()));
connect(m_detailsButton, SIGNAL(toggled(bool)),
this, SLOT(setExpanded(bool)));
}
DetailsWidget::~DetailsWidget()
@@ -43,53 +53,36 @@ DetailsWidget::~DetailsWidget()
void DetailsWidget::paintEvent(QPaintEvent *paintEvent)
{
//TL--> ___________ <-- TR
// | |
//ML-> ______________| <--MM | <--MR
// | |
//BL-> |_________________________| <-- BR
QWidget::paintEvent(paintEvent);
if (!m_detailsButton->isToggled())
return;
const QRect detailsGeometry = m_detailsButton->geometry();
const QRect widgetGeometry = m_widget ? m_widget->geometry() : QRect(x(), y() + height(), width(), 0);
QPoint tl(detailsGeometry.topLeft());
tl += QPoint(-3, -3);
QPoint tr(detailsGeometry.topRight());
tr += QPoint(3, -3);
QPoint mm(detailsGeometry.left() - 3, widgetGeometry.top() - 3);
QPoint ml(1, mm.y());
QPoint mr(tr.x(), mm.y());
int bottom = geometry().height() - 3;
QPoint bl(1, bottom);
QPoint br(tr.x(), bottom);
QPainter p(this);
p.setRenderHint(QPainter::Antialiasing);
p.setPen(Qt::NoPen);
p.setBrush(palette().dark());
p.drawRoundedRect(QRect(tl, br), 5, 5);
p.drawRoundedRect(QRect(ml, br), 5, 5);
const QRect paintArea(m_summaryLabel->geometry().topLeft(),
contentsRect().bottomRight());
if (!isExpanded()) {
if (m_collapsedPixmap.isNull() ||
m_collapsedPixmap.size() != size())
m_collapsedPixmap = cacheBackground(paintArea.size(), false);
p.drawPixmap(paintArea, m_collapsedPixmap);
} else {
if (m_expandedPixmap.isNull() ||
m_expandedPixmap.size() != size())
m_expandedPixmap = cacheBackground(paintArea.size(), true);
p.drawPixmap(paintArea, m_expandedPixmap);
}
}
void DetailsWidget::detailsButtonClicked()
void DetailsWidget::enterEvent(QEvent * event)
{
bool visible = m_detailsButton->isToggled();
if (m_widget)
m_widget->setVisible(visible);
m_dummyWidget->setVisible(visible);
fixUpLayout();
QWidget::enterEvent(event);
changeHoverState(true);
}
void DetailsWidget::leaveEvent(QEvent * event)
{
QWidget::leaveEvent(event);
changeHoverState(false);
}
void DetailsWidget::setSummaryText(const QString &text)
@@ -102,15 +95,21 @@ QString DetailsWidget::summaryText() const
return m_summaryLabel->text();
}
bool DetailsWidget::expanded() const
bool DetailsWidget::isExpanded() const
{
return m_detailsButton->isToggled();
if (!m_widget)
return false;
return m_widget->isVisible();
}
void DetailsWidget::setExpanded(bool v)
void DetailsWidget::setExpanded(bool visible)
{
if (expanded() != v)
m_detailsButton->animateClick();
if (!m_widget)
return;
m_summaryLabel->setEnabled(!visible);
m_widget->setVisible(visible);
m_detailsButton->setChecked(visible);
}
QWidget *DetailsWidget::widget() const
@@ -122,31 +121,40 @@ void DetailsWidget::setWidget(QWidget *widget)
{
if (m_widget == widget)
return;
if (m_widget) {
const bool wasExpanded(isExpanded());
if (m_widget)
m_grid->removeWidget(m_widget);
m_widget = 0;
}
m_widget = widget;
if (widget) {
m_grid->addWidget(widget, 1, 0, 1, 3);
m_widget = widget;
bool visible = m_detailsButton->isToggled();
m_widget->setVisible(visible);
m_dummyWidget->setVisible(visible);
m_widget->setContentsMargins(MARGIN, MARGIN, MARGIN, MARGIN);
m_grid->addWidget(widget, 1, 1, 1, 2);
setExpanded(wasExpanded);
} else {
m_detailsButton->setEnabled(false);
}
m_detailsButton->setEnabled(0 != m_widget);
}
void DetailsWidget::setToolWidget(QWidget *widget)
{
if (m_toolWidget == widget)
return;
if (m_toolWidget) {
m_grid->removeWidget(m_toolWidget);
m_toolWidget = 0;
}
if (widget) {
m_grid->addWidget(widget, 0, 1, 1, 1, Qt::AlignBottom);
m_toolWidget = widget;
}
m_toolWidget = widget;
if (!m_toolWidget)
return;
m_toolWidget->adjustSize();
m_grid->addWidget(m_toolWidget, 0, 0, 1, 1, Qt::AlignCenter);
m_grid->setColumnMinimumWidth(0, m_toolWidget->width());
m_grid->setRowMinimumHeight(0, m_toolWidget->height());
changeHoverState(m_hovered);
}
QWidget *DetailsWidget::toolWidget() const
@@ -154,25 +162,35 @@ QWidget *DetailsWidget::toolWidget() const
return m_toolWidget;
}
// This function works around a qt limitation.
// In a deeply nested widget structure, nested layouts
// tell their parents per a delayed invocation that they
// need to repaint. Thus hiding a widget triggers
// one relayout (and repaint) for each level of widget
// nesting. We circumvent that, by forcing a update()
// activate() on the widget after hiding.
void DetailsWidget::fixUpLayout()
QPixmap DetailsWidget::cacheBackground(const QSize &size, bool expanded)
{
if (!m_widget)
return;
QWidget *parent = m_widget;
QStack<QWidget *> widgets;
while((parent = parent->parentWidget()) && parent && parent->layout()) {
widgets.push(parent);
parent->layout()->update();
QLinearGradient lg;
lg.setCoordinateMode(QGradient::ObjectBoundingMode);
lg.setFinalStop(0, 1);
lg.setColorAt(0, palette().color(QPalette::Midlight));
lg.setColorAt(1, palette().color(QPalette::Button));
QPixmap pixmap(size);
QPainter p(&pixmap);
p.setBrush(lg);
p.setPen(QPen(palette().color(QPalette::Mid)));
p.drawRect(0, 0, size.width() - 1, size.height() - 1);
if (expanded) {
p.drawLine(0, m_summaryLabel->height(),
size.width(), m_summaryLabel->height());
}
while(!widgets.isEmpty()) {
widgets.pop()->layout()->activate();
}
return pixmap;
}
void DetailsWidget::changeHoverState(bool hovered)
{
m_hovered = hovered;
if (!m_toolWidget)
return;
m_toolWidget->setVisible(m_hovered);
}

32
src/libs/utils/detailswidget.h
View File

@@ -3,6 +3,7 @@
#include "utils_global.h"
#include <QtGui/QPixmap>
#include <QtGui/QWidget>
QT_BEGIN_NAMESPACE
@@ -17,7 +18,8 @@ class QTCREATOR_UTILS_EXPORT DetailsWidget : public QWidget
{
Q_OBJECT
Q_PROPERTY(QString summaryText READ summaryText WRITE setSummaryText DESIGNABLE true)
Q_PROPERTY(bool expanded READ expanded WRITE setExpanded DESIGNABLE true)
Q_PROPERTY(bool expanded READ isExpanded WRITE setExpanded DESIGNABLE true)
public:
DetailsWidget(QWidget *parent = 0);
~DetailsWidget();
@@ -25,8 +27,7 @@ public:
void setSummaryText(const QString &text);
QString summaryText() const;
bool expanded() const;
void setExpanded(bool);
bool isExpanded() const;
void setWidget(QWidget *widget);
QWidget *widget() const;
@@ -34,21 +35,28 @@ public:
void setToolWidget(QWidget *widget);
QWidget *toolWidget() const;
public slots:
void setExpanded(bool);
protected:
void paintEvent(QPaintEvent *paintEvent);
private slots:
void detailsButtonClicked();
void enterEvent(QEvent *event);
void leaveEvent(QEvent *event);
private:
void fixUpLayout();
QLabel *m_summaryLabel;
DetailsButton *m_detailsButton;
QPixmap cacheBackground(const QSize &size, bool expanded);
void changeHoverState(bool hovered);
QWidget *m_widget;
QWidget *m_toolWidget;
QWidget *m_dummyWidget;
DetailsButton *m_detailsButton;
QGridLayout *m_grid;
QLabel *m_summaryLabel;
QWidget *m_toolWidget;
QWidget *m_widget;
QPixmap m_collapsedPixmap;
QPixmap m_expandedPixmap;
bool m_hovered;
};
}