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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Rosegarden
A MIDI and audio sequencer and musical notation editor.
This program is Copyright 2000-2008
Guillaume Laurent <glaurent@telegraph-road.org>,
Chris Cannam <cannam@all-day-breakfast.com>,
Richard Bown <richard.bown@ferventsoftware.com>
The moral rights of Guillaume Laurent, Chris Cannam, and Richard
Bown to claim authorship of this work have been asserted.
Other copyrights also apply to some parts of this work. Please
see the AUTHORS file and individual file headers for details.
This program 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. See the file
COPYING included with this distribution for more information.
*/
#include "ControlItem.h"
#include "ControlRuler.h"
#include "ElementAdapter.h"
#include "misc/Debug.h"
namespace Rosegarden {
const unsigned int ControlItem::BorderThickness = 1;
const unsigned int ControlItem::DefaultWidth = 20;
static int _canvasItemZ = 30;
ControlItem::ControlItem(ControlRuler* ruler, ElementAdapter* elementAdapter,
int xx, int width)
: TQCanvasRectangle(ruler->canvas()),
m_value(0),
m_controlRuler(ruler),
m_elementAdapter(elementAdapter)
{
if (width < DefaultWidth/4) {
width = DefaultWidth/4; // avoid invisible zero-duration items
}
setWidth(width);
setPen(TQPen(Qt::black, BorderThickness));
setBrush(Qt::blue);
setX(xx);
setY(canvas()->height());
setZ(_canvasItemZ++); // we should make this work against controlruler
updateFromValue();
setEnabled(false);
//RG_DEBUG << "ControlItem x = " << x() << " - y = " << y() << " - width = " << width << endl;
show();
}
ControlItem::~ControlItem()
{
delete m_elementAdapter;
}
void ControlItem::setValue(long v)
{
// RG_DEBUG << "ControlItem::setValue(" << v << ") x = " << x() << endl;
m_value = v;
}
void ControlItem::updateValue()
{
m_elementAdapter->setValue(m_value);
}
void ControlItem::updateFromValue()
{
// RG_DEBUG << "ControlItem::updateFromValue() : " << this << endl;
if (m_elementAdapter->getValue(m_value)) {
// RG_DEBUG << "ControlItem::updateFromValue() : value = " << m_value << endl;
setHeight(m_controlRuler->valueToHeight(m_value));
}
}
typedef std::pair<int, TQCanvasItem*> ItemPair;
struct ItemCmp
{
bool operator()(const ItemPair &i1, const ItemPair &i2)
{
return i1.first > i2.first;
}
};
void ControlItem::draw(TQPainter &painter)
{
if (!isEnabled())
updateFromValue();
setBrush(m_controlRuler->valueToColour(m_controlRuler->getMaxItemValue(), m_value));
TQCanvasRectangle::draw(painter);
/*
// Attempt to get overlapping rectangles ordered automatically -
// probably best not to do this here - rwb
// calculate collisions and assign Z values accordingly
//
TQCanvasItemList l = collisions(false);
std::vector<ItemPair> sortList;
for (TQCanvasItemList::Iterator it=l.begin(); it!=l.end(); ++it) {
// skip all but rectangles
if ((*it)->rtti() != TQCanvasItem::Rtti_Rectangle) continue;
if (TQCanvasRectangle *rect = dynamic_cast<TQCanvasRectangle*>(*it))
sortList.push_back(ItemPair(rect->height(), *it));
}
// sort the list by height
std::sort(sortList.begin(), sortList.end(), ItemCmp());
int z = 20;
for (std::vector<ItemPair>::iterator it = sortList.begin();
it != sortList.end(); ++it)
{
RG_DEBUG << "HEIGHT = " << (*it).first << endl;
(*it).second->setZ(z++);
}
RG_DEBUG << endl << endl;
canvas()->update();
*/
}
void ControlItem::handleMouseButtonPress(TQMouseEvent*)
{
// RG_DEBUG << "ControlItem::handleMouseButtonPress()" << this << endl;
setEnabled(true);
}
void ControlItem::handleMouseButtonRelease(TQMouseEvent*)
{
// RG_DEBUG << "ControlItem::handleMouseButtonRelease()" << this << endl;
setEnabled(false);
}
void ControlItem::handleMouseMove(TQMouseEvent*, int /*deltaX*/, int deltaY)
{
// RG_DEBUG << "ControlItem::handleMouseMove()" << this << endl;
// height is always negative
//
m_controlRuler->applyTool(x(), deltaY);
int absNewHeight = -(getHeight() + deltaY);
// Make sure height is within bounds
if (absNewHeight > ControlRuler::MaxItemHeight)
absNewHeight = ControlRuler::MaxItemHeight;
else if (absNewHeight < ControlRuler::MinItemHeight)
absNewHeight = ControlRuler::MinItemHeight;
setHeight(-absNewHeight);
setValue(m_controlRuler->heightToValue(getHeight()));
}
void ControlItem::handleMouseWheel(TQWheelEvent *)
{
// RG_DEBUG << "ControlItem::handleMouseWheel - got wheel event" << endl;
}
void ControlItem::setSelected(bool s)
{
TQCanvasItem::setSelected(s);
if (s) setPen(TQPen(Qt::red, BorderThickness));
else setPen(TQPen(Qt::black, BorderThickness));
canvas()->update();
}
}
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