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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* widget.cc
*
* Sun Oct 9 13:01:44 CEST 2011
* Copyright 2011 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of CamSync.
*
* CamSync is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* CamSync is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CamSync; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "widget.h"
#include "painter.h"
#include "window.h"
#include <stdio.h>
namespace GUI {
Widget::Widget(Widget *parent)
: pixbuf(1, 1)
{
_width = _height = 10;
this->parent = parent;
if(parent) {
parent->addChild(this);
_window = parent->window();
}
_width = _height = 0;
_visible = true;
}
Widget::~Widget()
{
if(parent) parent->removeChild(this);
}
void Widget::show()
{
setVisible(true);
}
void Widget::hide()
{
setVisible(false);
}
void Widget::setVisible(bool v)
{
_visible = v;
repaintEvent(NULL);
}
bool Widget::visible()
{
return _visible;
}
void Widget::addChild(Widget *widget)
{
children.push_back(widget);
}
void Widget::removeChild(Widget *widget)
{
std::vector<Widget *>::iterator i = children.begin();
while(i != children.end()) {
if(*i == widget) {
children.erase(i);
return;
}
i++;
}
}
void Widget::resize(int width, int height)
{
if(width < 1 || height < 1) return;
_width = width;
_height = height;
pixbuf.realloc(width, height);
}
void Widget::move(size_t x, size_t y)
{
_x = x;
_y = y;
}
size_t Widget::x() { return _x; }
size_t Widget::y() { return _y; }
size_t Widget::width() { return _width; }
size_t Widget::height() { return _height; }
size_t Widget::windowX()
{
size_t window_x = x();
if(parent) window_x += parent->windowX();
return window_x;
}
size_t Widget::windowY()
{
size_t window_y = y();
if(parent) window_y += parent->windowY();
return window_y;
}
Widget *Widget::find(size_t x, size_t y)
{
std::vector<Widget*>::reverse_iterator i = children.rbegin();
while(i != children.rend()) {
Widget *w = *i;
if(w->visible()) {
if(w->x() <= x && (w->x() + w->width()) >= x &&
w->y() <= y && w->y() + w->height() >= y)
return w->find(x - w->x(), y - w->y());
}
i++;
}
if(x > width() || x < 0 || y > height() || y < 0) return NULL;
return this;
}
Window *Widget::window()
{
return _window;
}
void Widget::repaint_r(RepaintEvent *e)
{
Painter p(this); // make sure pixbuf refcount is incremented.
repaintEvent(e);
std::vector<Widget*>::iterator i = children.begin();
while(i != children.end()) {
Widget *w = *i;
w->repaint_r(e);
i++;
}
}
std::vector<PixelBufferAlpha *> Widget::getPixelBuffers()
{
std::vector<PixelBufferAlpha *> pbs;
pixbuf.x = windowX();
pixbuf.y = windowY();
pbs.push_back(&pixbuf);
std::vector<Widget*>::iterator i = children.begin();
while(i != children.end()) {
Widget *w = *i;
if(w->visible()) {
std::vector<PixelBufferAlpha *> pbs0 = w->getPixelBuffers();
pbs.insert(pbs.end(), pbs0.begin(), pbs0.end());
}
i++;
}
return pbs;
}
bool Widget::hasKeyboardFocus()
{
return window()->keyboardFocus() == this;
}
} // GUI::
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