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//===========================================
// Lumina-DE source code
// Copyright (c) 2013-2016, Ken Moore
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
#include "ResizeMenu.h"
#include <QDebug>
// =======================
// RESIZEMENU CLASS
// =======================
ResizeMenu::ResizeMenu(QWidget *parent) : QMenu(parent){
this->setContentsMargins(1,1,1,1);
this->setMouseTracking(true);
resizeSide = NONE;
cAct = new QWidgetAction(this);
contents = 0;
connect(this, SIGNAL(aboutToShow()), this, SLOT(clearFlags()) );
connect(this, SIGNAL(aboutToHide()), this, SLOT(clearFlags()) );
connect(cAct, SIGNAL(hovered()), this, SLOT(clearFlags()) );
}
ResizeMenu::~ResizeMenu(){
}
void ResizeMenu::setContents(QWidget *con){
this->clear();
cAct->setDefaultWidget(con);
this->addAction(cAct);
contents = con; //save for later
contents->setCursor(Qt::ArrowCursor);
resyncSize();
}
void ResizeMenu::resyncSize(){
if(contents==0){ return; }
qDebug() << "Resync Size:" << this->size() << contents->size();
this->resize(contents->size());
qDebug() << " - after menu resize:" << this->size() << contents->size();
emit MenuResized(this->size());
}
void ResizeMenu::mouseMoveEvent(QMouseEvent *ev){
QRect geom = this->geometry();
//Note: The exact position does not matter as much as the size
// since the window will be moved again the next time it is shown
// The "-2" in the sizing below accounts for the menu margins
QPoint gpos = this->mapToGlobal(ev->pos());
bool handled = false;
switch(resizeSide){
case TOP:
if(gpos.y() >= geom.bottom()-1){ break; }
geom.setTop(gpos.y());
this->setGeometry(geom);
if(contents!=0){ contents->setFixedSize(QSize(geom.width()-2, geom.height()-2));}
handled = true;
break;
case BOTTOM:
if(gpos.y() <= geom.top()+1){ break; }
geom.setBottom( gpos.y());
this->setGeometry(geom);
if(contents!=0){ contents->setFixedSize(QSize(geom.width()-2, geom.height()-2));}
handled = true;
break;
case LEFT:
if(gpos.x() >= geom.right()-1){ break; }
geom.setLeft(gpos.x());
this->setGeometry(geom);
if(contents!=0){ contents->setFixedSize(QSize(geom.width()-2, geom.height()-2));}
handled = true;
break;
case RIGHT:
if(gpos.x() <= geom.left()+1){ break; }
geom.setRight(gpos.x());
this->setGeometry(geom);
if(contents!=0){ contents->setFixedSize(QSize(geom.width()-2, geom.height()-2));}
handled = true;
break;
default: //NONE
//qDebug() << " - Mouse At:" << ev->pos();
//Just adjust the mouse cursor which is shown
if(ev->pos().x()<=1 && ev->pos().x() >= -1){ this->setCursor(Qt::SizeHorCursor); }
else if(ev->pos().x() >= this->width()-1 && ev->pos().x() <= this->width()+1){ this->setCursor(Qt::SizeHorCursor); }
else if(ev->pos().y()<=1 && ev->pos().y() >= -1){ this->setCursor(Qt::SizeVerCursor); }
else if(ev->pos().y() >= this->height()-1 && ev->pos().y() <= this->height()+1){ this->setCursor(Qt::SizeVerCursor); }
else{ this->setCursor(Qt::ArrowCursor); }
}
if(!handled){ QMenu::mouseMoveEvent(ev); } //do normal processing as well
}
void ResizeMenu::mousePressEvent(QMouseEvent *ev){
bool used = false;
if(ev->buttons().testFlag(Qt::LeftButton) && resizeSide==NONE){
//qDebug() << "Mouse Press Event:" << ev->pos() << resizeSide;
if(ev->pos().x()<=1 && ev->pos().x() >= -1){resizeSide = LEFT; used = true;}
else if(ev->pos().x() >= this->width()-1 && ev->pos().x() <= this->width()+1){ resizeSide = RIGHT; used = true;}
else if(ev->pos().y()<=1 && ev->pos().y() >= -1){ resizeSide = TOP; used = true; }
else if(ev->pos().y() >= this->height()-1 && ev->pos().y() <= this->height()+1){ resizeSide = BOTTOM; used = true; }
}
if(used){ ev->accept(); this->grabMouse(); }
else{ QMenu::mousePressEvent(ev); } //do normal processing
}
void ResizeMenu::mouseReleaseEvent(QMouseEvent *ev){
this->releaseMouse();
if(ev->button() == Qt::LeftButton && resizeSide!=NONE ){
//qDebug() << "Mouse Release Event:" << ev->pos() << resizeSide;
resizeSide = NONE;
emit MenuResized(contents->size());
ev->accept();
}else{
QMenu::mouseReleaseEvent(ev); //do normal processing
}
}
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