#include <KApplication>
#include <KIcon>
+#include <KDebug>
#include <KLocalizedString>
#ifdef Q_WS_X11
#include <X11/Xutil.h>
#include <fixx11h.h>
+#endif
-class KCDPickerFilter: public QWidget
+MyFrame::MyFrame(QWidget* parent) :
+ QFrame(parent)
{
-public:
- KCDPickerFilter(QWidget* parent): QWidget(parent) {}
-
- virtual bool x11Event(XEvent* event) {
- if (event->type == ButtonRelease) {
- QMouseEvent e(QEvent::MouseButtonRelease, QPoint(),
- QPoint(event->xmotion.x_root, event->xmotion.y_root) , Qt::NoButton, Qt::NoButton, Qt::NoModifier);
- QApplication::sendEvent(parentWidget(), &e);
- return true;
- }
- return false;
- }
-};
-#endif
+ setFrameStyle(QFrame::Box | QFrame::Plain);
+ setWindowOpacity(0.5);
+ setWindowFlags(Qt::FramelessWindowHint);
+}
+
+// virtual
+void MyFrame::hideEvent ( QHideEvent * event )
+{
+ QFrame::hideEvent(event);
+ // We need a timer here since hiding the frame will trigger a monitor refresh timer that will
+ // repaint the monitor after 70 ms.
+ QTimer::singleShot(250, this, SIGNAL(getColor()));
+}
ColorPickerWidget::ColorPickerWidget(QWidget *parent) :
m_filterActive(false)
{
#ifdef Q_WS_X11
- m_filter = 0;
m_image = NULL;
#endif
QToolButton *button = new QToolButton(this);
button->setIcon(KIcon("color-picker"));
- // TODO: make translatable after 0.8.2 release
- button->setToolTip(i18n("Pick a color on the screen") + QString("\nBy pressing the mouse button and then moving your mouse you can select a section of the screen from which to get an average color."));
+ button->setToolTip("<p>" + i18n("Pick a color on the screen. By pressing the mouse button and then moving your mouse you can select a section of the screen from which to get an average color.") + "</p>");
button->setAutoRaise(true);
connect(button, SIGNAL(clicked()), this, SLOT(slotSetupEventFilter()));
layout->addWidget(button);
+ setFocusPolicy(Qt::StrongFocus);
- m_grabRectFrame = new QFrame();
- m_grabRectFrame->setFrameStyle(QFrame::Box | QFrame::Plain);
- m_grabRectFrame->setWindowOpacity(0.5);
- m_grabRectFrame->setWindowFlags(Qt::FramelessWindowHint);
+ m_grabRectFrame = new MyFrame();
m_grabRectFrame->hide();
}
ColorPickerWidget::~ColorPickerWidget()
{
delete m_grabRectFrame;
-#ifdef Q_WS_X11
- if (m_filterActive && kapp)
- kapp->removeX11EventFilter(m_filter);
-#endif
+ if (m_filterActive) removeEventFilter(this);
}
void ColorPickerWidget::slotGetAverageColor()
{
+ disconnect(m_grabRectFrame, SIGNAL(getColor()), this, SLOT(slotGetAverageColor()));
m_grabRect = m_grabRect.normalized();
int numPixel = m_grabRect.width() * m_grabRect.height();
emit displayMessage(i18n("Calculated average color for rectangle."), -1);
emit colorPicked(QColor(sumR / numPixel, sumG / numPixel, sumB / numPixel));
+ emit disableCurrentFilter(false);
}
void ColorPickerWidget::mousePressEvent(QMouseEvent* event)
{
if (event->button() != Qt::LeftButton) {
closeEventFilter();
+ emit disableCurrentFilter(false);
event->accept();
return;
}
void ColorPickerWidget::mouseReleaseEvent(QMouseEvent *event)
{
if (m_filterActive) {
- m_grabRectFrame->hide();
-
closeEventFilter();
m_grabRect.setWidth(event->globalX() - m_grabRect.x());
m_grabRect.setHeight(event->globalY() - m_grabRect.y());
if (m_grabRect.width() * m_grabRect.height() == 0) {
+ m_grabRectFrame->hide();
emit colorPicked(grabColor(event->globalPos()));
+ emit disableCurrentFilter(false);
} else {
// delay because m_grabRectFrame does not hide immediately
- QTimer::singleShot(50, this, SLOT(slotGetAverageColor()));
+ connect(m_grabRectFrame, SIGNAL(getColor()), this, SLOT(slotGetAverageColor()));
+ m_grabRectFrame->hide();
}
-
return;
}
QWidget::mouseReleaseEvent(event);
QWidget::mouseMoveEvent(event);
}
-void ColorPickerWidget::keyPressEvent(QKeyEvent *event)
-{
- if (m_filterActive) {
- // "special keys" (non letter, numeral) do not work, so close for every key
- //if (event->key() == Qt::Key_Escape)
- closeEventFilter();
- event->accept();
- return;
- }
- QWidget::keyPressEvent(event);
-}
-
void ColorPickerWidget::slotSetupEventFilter()
{
+ emit disableCurrentFilter(true);
m_filterActive = true;
-#ifdef Q_WS_X11
- m_filter = new KCDPickerFilter(this);
- kapp->installX11EventFilter(m_filter);
-#endif
+ setFocus();
+ installEventFilter(this);
grabMouse(QCursor(KIcon("color-picker").pixmap(22, 22), 0, 21));
grabKeyboard();
}
void ColorPickerWidget::closeEventFilter()
{
m_filterActive = false;
-#ifdef Q_WS_X11
- kapp->removeX11EventFilter(m_filter);
- delete m_filter;
- m_filter = 0;
-#endif
releaseMouse();
releaseKeyboard();
+ removeEventFilter(this);
+}
+
+bool ColorPickerWidget::eventFilter(QObject *object, QEvent *event)
+{
+ // Close color picker on any key press
+ if (event->type() == QEvent::KeyPress || event->type() == QEvent::ShortcutOverride) {
+ closeEventFilter();
+ emit disableCurrentFilter(false);
+ event->setAccepted(true);
+ return true;
+ }
+ return QObject::eventFilter(object, event);
+
}
QColor ColorPickerWidget::grabColor(const QPoint &p, bool destroyImage)