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//===========================================
// Lumina-desktop source code
// Copyright (c) 2017, Ken Moore
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
#include "glw-widget.h"
#include <QDebug>
// --- PUBLIC ---
GLW_Widget::GLW_Widget(QWidget *parent, Qt::WindowFlags f) : QWidget(parent, f){
glw_base = 0;
draggable = false;
drag_offset = QPoint();
}
GLW_Widget::~GLW_Widget(){
}
QRect GLW_Widget::widgetRect(){
QPoint pos = this->mapTo(glw_base, QPoint(0,0));
return QRect(pos, this->size());
}
bool GLW_Widget::mouseOverWidget(){
return (glw_base->mouseOverWidget()==this);
}
void GLW_Widget::setGLBase(GLW_Base *base){
if(glw_base!=0){ this->disconnect(glw_base, SLOT(repaintArea(QRect))); }
glw_base=base;
connect(this, SIGNAL(repaintArea(QRect)), glw_base, SLOT(repaintArea(QRect)) );
}
void GLW_Widget::paintYourself(QStylePainter *painter, const QRect *prect){
QRect rect = widgetRect();
rect = prect->intersected(rect);
QColor color( mouseOverWidget() ? Qt::gray : Qt::yellow);
//if(this->windowOpacity()!=1.0){ qDebug() << "Opacity:" << this->windowOpacity(); }
//color.setAlpha( qRound(this->windowOpacity()*255) );
color.setAlpha( 125);
painter->fillRect(rect, color);
}
void GLW_Widget::paintChildren(QStylePainter *painter, const QRect *prect){
QObjectList child = this->children(); //Note: This is returned in stacking order (lowest -> highest)
for(int i=0; i<child.length(); i++){
if( !child[i]->isWidgetType() ){ continue; } //not a widget
GLW_Widget *glww = qobject_cast<GLW_Widget*>(child[i]);
if(glww!=0){
if( !prect->intersected(glww->widgetRect()).isNull() ){
glww->paintYourself(painter, prect);
glww->paintChildren(painter,prect);
}
}
}
}
// --- PROTECTED ---
void GLW_Widget::enterEvent(QEvent*){
if(!mouseOverWidget()){ glw_base->setMouseOverWidget(this); }
this->update();
}
void GLW_Widget::leaveEvent(QEvent*){
if(mouseOverWidget()){ glw_base->setMouseOverWidget(0); }
this->update();
}
void GLW_Widget::mousePressEvent(QMouseEvent *ev){
if(!draggable){ QWidget::mousePressEvent(ev); return; }
if(ev->button()==Qt::LeftButton){
drag_offset = ev->pos();
}
}
void GLW_Widget::mouseReleaseEvent(QMouseEvent *ev){
if(!draggable){ QWidget::mouseReleaseEvent(ev); return; }
if(ev->button()==Qt::LeftButton){
if(drag_offset!=ev->pos()){ emit doneDragging(); }
drag_offset = QPoint(); } //reset offset
}
void GLW_Widget::mouseMoveEvent(QMouseEvent *ev){
if(!mouseOverWidget()){ glw_base->setMouseOverWidget(this); }
if(!draggable){ QWidget::mouseMoveEvent(ev); return; }
if(!drag_offset.isNull()){
this->move( this->mapTo(glw_base, ev->pos()-drag_offset) );
}
}
void GLW_Widget::moveEvent(QMoveEvent *ev){
QRect oldgeom = QRect(ev->oldPos(), this->size());
QRect newgeom = QRect(ev->pos(), this->size());
emit repaintArea( oldgeom.united(newgeom) );
}
void GLW_Widget::resizeEvent(QResizeEvent *ev){
if(glw_base==0){ return; }
QPoint pos = this->mapTo(glw_base, QPoint(0,0));
QSize sz = ev->oldSize();
if(ev->size().width() > sz.width()){ sz.setWidth(ev->size().width()); }
if(ev->size().height() > sz.height()){ sz.setHeight(ev->size().height()); }
emit repaintArea(QRect(pos, sz));
}
void GLW_Widget::paintEvent(QPaintEvent *ev){
//qDebug() << "Got paint event:" << ev->rect();
QPoint pos = this->mapTo(glw_base, ev->rect().topLeft());
emit repaintArea(QRect(pos, ev->rect().size()) );
return;
}
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