genode/repos/libports/src/lib/qt5/qnitpickerviewwidget/qnitpickerviewwidget.cpp

334 lines
11 KiB
C++

/*
* \brief A Qt Widget that shows a nitpicker view
* \author Christian Prochaska
* \date 2010-08-26
*/
#include <base/ipc.h>
#include <string.h>
#include <QtGui>
#if 0
#include <private/qwindowsurface_qws_p.h>
#include <private/qwindowsurface_nitpicker_qws_p.h>
#endif
#include <qnitpickerplatformwindow.h>
#include <qnitpickerviewwidget/qnitpickerviewwidget.h>
QNitpickerViewWidget::QNitpickerViewWidget(QWidget *parent)
: QWidget(parent), nitpicker(0), orig_w(0), orig_h(0), orig_buf_x(0), orig_buf_y(0)
{
}
void QNitpickerViewWidget::setNitpickerView(Nitpicker::Session_client *new_nitpicker,
Nitpicker::Session::View_handle new_view_handle,
int buf_x, int buf_y, int w, int h)
{
orig_buf_x = buf_x;
orig_buf_y = buf_y;
orig_w = w;
orig_h = h;
// PDBG("orig_w = %d, orig_h = %d", orig_w, orig_h);
nitpicker = new_nitpicker;
view_handle = new_view_handle;
setFixedSize(orig_w, orig_h);
}
QNitpickerViewWidget::~QNitpickerViewWidget()
{
}
void QNitpickerViewWidget::showEvent(QShowEvent *event)
{
// qDebug() << "showEvent()";
#if 0
connect(qwsServer, SIGNAL(windowEvent(QWSWindow*, QWSServer::WindowEvent)),
this, SLOT(windowEvent(QWSWindow*, QWSServer::WindowEvent)));
#endif
QWidget::showEvent(event);
}
void QNitpickerViewWidget::hideEvent(QHideEvent *event)
{
// qDebug() << "hideEvent()";
#if 0
disconnect(this, SLOT(windowEvent(QWSWindow*, QWSServer::WindowEvent)));
#endif
QWidget::hideEvent(event);
if (nitpicker) {
typedef Nitpicker::Session::Command Command;
Nitpicker::Rect geometry(Nitpicker::Point(mapToGlobal(pos()).x(),
mapToGlobal(pos()).y()),
Nitpicker::Area(0, 0));
nitpicker->enqueue<Command::Geometry>(view_handle, geometry);
Nitpicker::Point offset(orig_buf_x, orig_buf_y);
nitpicker->enqueue<Command::Offset>(view_handle, offset);
nitpicker->execute();
}
}
void QNitpickerViewWidget::paintEvent(QPaintEvent *event)
{
QWidget::paintEvent(event);
if (!nitpicker)
return;
/* mark all sliders as unchecked */
QHashIterator<QScrollBar*, bool> i(_scrollbars);
while(i.hasNext()) {
i.next();
_scrollbars.insert(i.key(), false);
}
#if 0
// qDebug() << "paintEvent()";
qDebug() << "geometry: " << geometry(); /* widget relative to parent widget */
qDebug() << "rect: " << rect(); /* (0, 0, width(), height()) without frames */
qDebug() << "event->rect(): " << event->rect();
qDebug() << "event->region(): " << event->region();
qDebug() << "global(0, 0): " << mapToGlobal(QPoint(0, 0));
qDebug() << "x(): " << x() << "y(): " << y();
qDebug() << "global(x, y): " << mapToGlobal(QPoint(x(), y()));
qDebug() << "window =" << window();
// qDebug() << "window->geometry() =" << window()->geometry();
// qDebug() << "mapToGlobal(window->geometry().topLeft()) =" <<
mapToGlobal(window()->geometry().topLeft());
qDebug() << "window->rect().topLeft() =" << window()->rect().topLeft();
qDebug() << "mapToGlobal(window->rect().topLeft()) =" <<
mapToGlobal(window()->rect().topLeft());
qDebug() << "mapToGlobal(window->childrenRect().topLeft()) =" <<
mapToGlobal(window()->childrenRect().topLeft());
qDebug() << "mapToGlobal(window->contentsRect().topLeft()) =" <<
mapToGlobal(window()->contentsRect().topLeft());
qDebug() << "mapToGlobal(mask().boundingRect().bottomRight()) =" <<
mapToGlobal(mask().boundingRect().bottomRight());
#endif
// QPainter painter(this);
// painter.fillRect(rect(), Qt::black);
QWidget *parent = parentWidget();
int w = 0;
int h = 0;
int diff_x = 0;
int diff_y = 0;
int x0 = mapToGlobal(QPoint(0, 0)).x();
// qDebug() << "x0 = " << x0;
int x1 = mapToGlobal(QPoint(orig_w - 1, 0)).x();
// qDebug() << "x1 = " << x1;
int y0 = mapToGlobal(QPoint(0, 0)).y();
// qDebug() << "y0 = " << y0;
int y1 = mapToGlobal(QPoint(0, orig_h - 1)).y();
// qDebug() << "y1 = " << y1;
while(parent) {
#if 0
qDebug() << "parent =" << parent;
qDebug() << "parent's rect: " << parent->rect();
qDebug() << "parent's children rect:" << parent->childrenRect();
qDebug() << "parent's contents rect:" << parent->contentsRect();
/* start of view = most right window start position */
// qDebug() << "parent->geometry() =" << parent->geometry();
// qDebug() << "parent->frameGeometry() =" << parent->frameGeometry();
// qDebug() << "mapToGlobal(parent->frameGeometry().topLeft()) =" <<
parent->mapToGlobal(parent->frameGeometry().topLeft());
qDebug() << "mapToGlobal(parent->geometry().bottomRight()) =" <<
parent->mapToGlobal(parent->geometry().bottomRight());
qDebug() << "mapToGlobal(parent->rect().topLeft()) =" <<
parent->mapToGlobal(parent->rect().topLeft());
qDebug() << "mapToGlobal(parent->rect().bottomRight()) =" <<
parent->mapToGlobal(parent->rect().bottomRight());
qDebug() << "mapToGlobal(parent->childrenRect().topLeft()) =" <<
parent->mapToGlobal(parent->childrenRect().topLeft());
qDebug() << "mapToGlobal(parent->childrenRect().bottomRight()) =" <<
parent->mapToGlobal(parent->childrenRect().bottomRight());
qDebug() << "mapToGlobal(parent->contentsRect().topLeft()) =" <<
parent->mapToGlobal(parent->contentsRect().topLeft());
qDebug() << "mapToGlobal(parent->contentsRect().bottomRight()) =" <<
parent->mapToGlobal(parent->contentsRect().bottomRight());
qDebug() << "parentWidget()->childAt(" << geometry().topRight() << ") = " <<
parentWidget()->childAt(geometry().topRight());
qDebug() << "visibleRegion() = " << visibleRegion();
qDebug() << "geometry().contains(" << geometry().topRight() << ") = " <<
geometry().contains(geometry().topRight());
qDebug() << "mask() = " << mask();
#endif
if (parent->inherits("QAbstractScrollArea")) {
QAbstractScrollArea *scrollarea = qobject_cast<QAbstractScrollArea*>(parent);
QScrollBar *scrollbar;
scrollbar = scrollarea->horizontalScrollBar();
if (!_scrollbars.contains(scrollbar)) {
connect(scrollbar, SIGNAL(valueChanged(int)), this, SLOT(valueChanged()));
connect(scrollbar, SIGNAL(destroyed(QObject*)), this, SLOT(destroyed(QObject*)));
}
/* update/insert value */
_scrollbars.insert(scrollbar, true);
scrollbar = scrollarea->verticalScrollBar();
if (!_scrollbars.contains(scrollbar)) {
connect(scrollbar, SIGNAL(valueChanged(int)), this, SLOT(valueChanged()));
connect(scrollbar, SIGNAL(destroyed(QObject*)), this, SLOT(destroyed(QObject*)));
}
/* update/insert value */
_scrollbars.insert(scrollbar, true);
// w = qMin(w, parent->contentsRect().width() + parent->childrenRect().x());
/* qDebug() << "mapToGlobal(viewport->rect().topLeft()) =" <<
scrollarea->viewport()->mapToGlobal(scrollarea->viewport()->rect().topLeft()); */
/* qDebug() << "mapToGlobal(viewport->rect().bottomRight()) =" <<
scrollarea->viewport()->mapToGlobal(scrollarea->viewport()->rect().bottomRight()); */
}
x0 = qMax(x0, parent->mapToGlobal(parent->contentsRect().topLeft()).x());
// qDebug() << "x0 = " << x0;
x1 = qMin(x1, parent->mapToGlobal(parent->contentsRect().bottomRight()).x());
// qDebug() << "x1 = " << x1;
y0 = qMax(y0, parent->mapToGlobal(parent->contentsRect().topLeft()).y());
// qDebug() << "y0 = " << y0;
y1 = qMin(y1, parent->mapToGlobal(parent->contentsRect().bottomRight()).y());
// qDebug() << "y1 = " << y1;
//w = qMin(w, parent->contentsRect().width() /*+ parent->childrenRect().x()*/);
w = x1 - x0 + 1;
// qDebug() << "w = " << w;
h = y1 - y0 + 1;
// qDebug() << "h = " << h;
if (parent->childrenRect().x() < 0) {
diff_x += parent->childrenRect().x();
}
if (parent->childrenRect().y() < 0) {
diff_y += parent->childrenRect().y();
}
parent = parent->parentWidget();
}
/* disconnect and remove any scrollbar that is not in the hierarchy anymore */
i.toBack();
while(i.hasNext()) {
i.next();
if (_scrollbars.value(i.key()) == false) {
disconnect(i.key(), SIGNAL(valueChanged(int)), this, SLOT(valueChanged()));
disconnect(i.key(), SIGNAL(destroyed(QObject*)), this, SLOT(destroyed(QObject*)));
_scrollbars.remove(i.key());
}
}
typedef Nitpicker::Session::Command Command;
/* argument to mapToGlobal() is relative to the Widget's origin
* the plugin view starts at (0, 0)
*/
if (mask().isEmpty()) {
// PDBG("x0 = %d, y0 = %d, w = %d, h = %d, buf_x = %d, buf_y = %d",
// x0, y0, w, h, orig_buf_x + diff_x, orig_buf_y + diff_y);
Nitpicker::Rect geometry(Nitpicker::Point(x0, y0),
Nitpicker::Area(w, h));
nitpicker->enqueue<Command::Geometry>(view_handle, geometry);
Nitpicker::Point offset(orig_buf_x + diff_x, orig_buf_y + diff_y);
nitpicker->enqueue<Command::Offset>(view_handle, offset);
} else {
/* PDBG("x = %d, y = %d, w = %d, h = %d, buf_x = %d, buf_y = %d",
mapToGlobal(mask().boundingRect().topLeft()).x(),
mapToGlobal(mask().boundingRect().topLeft()).y(),
mask().boundingRect().width(),
mask().boundingRect().height(),
orig_buf_x + diff_x, orig_buf_y + diff_y); */
Nitpicker::Rect const
geometry(Nitpicker::Point(mapToGlobal(mask().boundingRect().topLeft()).x(),
mapToGlobal(mask().boundingRect().topLeft()).y()),
Nitpicker::Area(mask().boundingRect().width(),
mask().boundingRect().height()));
nitpicker->enqueue<Command::Geometry>(view_handle, geometry);
Nitpicker::Point offset(orig_buf_x + diff_x, orig_buf_y + diff_y);
nitpicker->enqueue<Command::Offset>(view_handle, offset);
}
/* bring the plugin view to the front of the Qt window */
QNitpickerPlatformWindow *platform_window =
dynamic_cast<QNitpickerPlatformWindow*>(window()->windowHandle()->handle());
Nitpicker::Session::View_handle neighbor_handle =
nitpicker->view_handle(platform_window->view_cap());
nitpicker->enqueue<Command::To_front>(view_handle, neighbor_handle);
nitpicker->execute();
nitpicker->release_view_handle(neighbor_handle);
}
#if 0
void QNitpickerViewWidget::windowEvent(QWSWindow *window,
QWSServer::WindowEvent eventType)
{
if (this->window()->windowSurface() && (window->winId() == static_cast<QWSWindowSurface*>(this->window()->windowSurface())->winId())) {
switch (eventType) {
/* the window has changed its geometry */
case QWSServer::Geometry:
{
if (isVisible()) {
QPaintEvent e(rect());
paintEvent(&e);
}
break;
}
case QWSServer::Raise:
{
if (vc) {
try {
vc->stack(Nitpicker::View_capability(), true, true);
} catch (Genode::Ipc_error) {
delete vc;
vc = 0;
}
}
break;
}
default:
break;
}
}
}
#endif
void QNitpickerViewWidget::valueChanged()
{
// qDebug() << "valueChanged()";
if (isVisible()) {
QPaintEvent e(rect());
paintEvent(&e);
}
}
void QNitpickerViewWidget::destroyed(QObject *obj)
{
_scrollbars.remove(qobject_cast<QScrollBar*>(obj));
}