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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.
This file Copyright 2006 Martin Shepherd <mcs@astro.caltech.edu>.
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 "RosegardenParameterArea.h"
#include "RosegardenParameterBox.h"
#include <ktabwidget.h>
#include <qfont.h>
#include <qframe.h>
#include <qpoint.h>
#include <qscrollview.h>
#include <qstring.h>
#include <qvbox.h>
#include <qlayout.h>
#include <qvgroupbox.h>
#include <qwidget.h>
#include <qwidgetstack.h>
#include <iostream>
#include <set>
namespace Rosegarden
{
RosegardenParameterArea::RosegardenParameterArea(QWidget *parent,
const char *name, WFlags f)
: QWidgetStack(parent, name, f),
m_style(RosegardenParameterArea::CLASSIC_STYLE),
m_scrollView(new QScrollView(this, 0, Qt::WStaticContents)),
m_classic(new QVBox(m_scrollView->viewport())),
m_tabBox(new KTabWidget(this)),
m_active(0),
m_spacing(0)
{
m_scrollView->addChild(m_classic);
m_scrollView->setHScrollBarMode(QScrollView::AlwaysOff);
m_scrollView->setVScrollBarMode(QScrollView::Auto);
m_scrollView->setResizePolicy(QScrollView::AutoOneFit);
// Install the classic-style VBox widget in the widget-stack.
addWidget(m_scrollView, CLASSIC_STYLE);
// Install the widget that implements the tab-style to the widget-stack.
addWidget(m_tabBox, TAB_BOX_STYLE);
}
void RosegardenParameterArea::addRosegardenParameterBox(
RosegardenParameterBox *b)
{
// Check that the box hasn't been added before.
for (unsigned int i = 0; i < m_parameterBoxes.size(); i++) {
if (m_parameterBoxes[i] == b)
return ;
}
// Append the parameter box to the list to be displayed.
m_parameterBoxes.push_back(b);
m_scrollView->setMinimumWidth(std::max(m_scrollView->minimumWidth(),
b->sizeHint().width()) + 8);
// Create a titled group box for the parameter box, parented by the
// classic layout widget, so that it can be used to provide a title
// and outline, in classic mode. Add this container to an array that
// parallels the above array of parameter boxes.
QVGroupBox *box = new QVGroupBox(b->getLongLabel(), m_classic);
box->layout()->setMargin( 4 ); // about half the default value
QFont f;
f.setBold( true );
box->setFont( f );
m_groupBoxes.push_back(box);
if (m_spacing)
delete m_spacing;
m_spacing = new QFrame(m_classic);
m_classic->setStretchFactor(m_spacing, 100);
// Add the parameter box to the current container of the displayed
// widgets, unless the current container has been set up yet.
if (m_active)
moveWidget(0, m_active, b);
// Queue a redisplay of the parameter area, to incorporate the new box.
update();
}
void RosegardenParameterArea::setArrangement(Arrangement style)
{
// Lookup the container of the specified style.
QWidget *container;
switch (style) {
case CLASSIC_STYLE:
container = m_classic;
break;
case TAB_BOX_STYLE:
container = m_tabBox;
break;
default:
std::cerr << "setArrangement() was passed an unknown arrangement style."
<< std::endl;
return ;
}
// Does the current container of the parameter-box widgets differ
// from the one that is associated with the currently configured
// style?
if (container != m_active) {
// Move the parameter boxes from the old container to the new one.
std::vector<RosegardenParameterBox *> sorted;
std::set<RosegardenParameterBox *> unsorted;
for (unsigned int i = 0; i < m_parameterBoxes.size(); i++) {
unsorted.insert(m_parameterBoxes[i]);
}
QString previous = "";
while (!unsorted.empty()) {
std::set<RosegardenParameterBox *>::iterator i = unsorted.begin();
bool have = false;
while (i != unsorted.end()) {
if ((*i)->getPreviousBox(style) == previous) {
sorted.push_back(*i);
previous = (*i)->getShortLabel();
unsorted.erase(i);
have = true;
break;
}
++i;
}
if (!have) {
while (!unsorted.empty()) {
sorted.push_back(*unsorted.begin());
unsorted.erase(unsorted.begin());
}
break;
}
}
for (std::vector<RosegardenParameterBox *>::iterator i = sorted.begin();
i != sorted.end(); ++i) {
moveWidget(m_active, container, *i);
(*i)->showAdditionalControls(style == TAB_BOX_STYLE);
}
// Switch the widget stack to displaying the new container.
raiseWidget(style);
}
// Record the identity of the active container, and the associated
// arrangement style.
m_active = container;
m_style = style;
}
void RosegardenParameterArea::moveWidget(QWidget *old_container,
QWidget *new_container,
RosegardenParameterBox *box)
{
// Remove any state that is associated with the parameter boxes,
// from the active container.
if (old_container == m_classic) {
;
} else if (old_container == m_tabBox) {
m_tabBox->removePage(box);
}
// Reparent the parameter box, and perform any container-specific
// configuration.
if (new_container == m_classic) {
int index = 0;
while (index < m_parameterBoxes.size()) {
if (box == m_parameterBoxes[index])
break;
++index;
}
if (index < m_parameterBoxes.size()) {
box->reparent(m_groupBoxes[index], 0, QPoint(0, 0), FALSE);
}
} else if (new_container == m_tabBox) {
box->reparent(new_container, 0, QPoint(0, 0), FALSE);
m_tabBox->insertTab(box, box->getShortLabel());
}
}
}
#include "RosegardenParameterArea.moc"
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