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#include "beamerwindow.h"
#include "viewer.h"
#include "canvas.h"
#include "config.h"
#include "resourcemanager.h"
#include "layout/presentationlayout.h"
#include <QResizeEvent>
#include <QApplication>
#include <iostream>
using namespace std;
BeamerWindow::BeamerWindow(Viewer *v, QWidget *parent) :
QWidget(parent),
viewer(v),
valid(false) {
setFocusPolicy(Qt::StrongFocus);
layout = new PresentationLayout(viewer);
CFG *config = CFG::get_instance();
mouse_wheel_factor = config->get_value("mouse_wheel_factor").toInt();
valid = true;
}
BeamerWindow::~BeamerWindow() {
delete layout;
}
bool BeamerWindow::is_valid() const {
return valid;
}
Layout *BeamerWindow::get_layout() const {
return layout;
}
void BeamerWindow::set_page(int page) {
// TODO calls itself if page != layout->get_page(), so once too often
if (layout->scroll_page(page, false)) {
update();
}
}
void BeamerWindow::toggle_fullscreen() {
setWindowState(windowState() ^ Qt::WindowFullScreen);
}
void BeamerWindow::paintEvent(QPaintEvent * /*event*/) {
#ifdef DEBUG
cerr << "redraw beamer" << endl;
#endif
QPainter painter(this);
painter.fillRect(rect(), QColor(0, 0, 0));
layout->render(&painter);
}
void BeamerWindow::mousePressEvent(QMouseEvent *event) {
if (event->button() == Qt::LeftButton) {
mx_down = event->x();
my_down = event->y();
}
}
void BeamerWindow::mouseReleaseEvent(QMouseEvent *event) {
if (event->button() == Qt::LeftButton) {
if (mx_down == event->x() && my_down == event->y()) {
int page = layout->get_page();
pair<int, QPointF> location = layout->get_location_at(mx_down, my_down);
if (layout->activate_link(location.first, location.second.x(), location.second.y())) {
if (viewer->get_canvas()->get_layout()->scroll_page(layout->get_page(), false)) {
viewer->get_canvas()->update();
}
viewer->get_res()->store_jump(page); // store old position if a clicked link moved the view
update();
}
}
}
}
void BeamerWindow::wheelEvent(QWheelEvent *event) {
int d = event->delta();
if (QApplication::keyboardModifiers() == Qt::NoModifier) {
if (event->orientation() == Qt::Vertical) {
if (viewer->get_canvas()->get_layout()->scroll_page(-d / mouse_wheel_factor)) {
viewer->get_canvas()->update();
}
}
}
}
void BeamerWindow::resizeEvent(QResizeEvent *event) {
layout->resize(event->size().width(), event->size().height());
update();
}
void BeamerWindow::page_rendered(int page) {
if (layout->page_visible(page)) {
update();
}
}
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