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/***************************************************************************
wpushbutton.cpp - description
-------------------
begin : Fri Jun 21 2002
copyright : (C) 2002 by Tue & Ken Haste Andersen
email : haste@diku.dk
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "wpushbutton.h"
#include "wpixmapstore.h"
#include "controlobject.h"
#include "controlpushbutton.h"
#include "control/controlbehavior.h"
//Added by qt3to4:
#include <QPixmap>
#include <QtDebug>
#include <QMouseEvent>
#include <QPaintEvent>
#include <QApplication>
const int PB_SHORTKLICKTIME = 200;
WPushButton::WPushButton(QWidget * parent) :
WWidget(parent),
m_pPixmaps(NULL),
m_pPixmapBack(NULL),
m_leftButtonMode(ControlPushButton::PUSH),
m_rightButtonMode(ControlPushButton::PUSH) {
setStates(0);
//setBackgroundMode(Qt::NoBackground); //obsolete? removal doesn't seem to change anything on the GUI --kousu 2009/03
}
WPushButton::~WPushButton() {
for (int i = 0; i < 2*m_iNoStates; i++) {
WPixmapStore::deletePixmap(m_pPixmaps[i]);
}
delete [] m_pPixmaps;
WPixmapStore::deletePixmap(m_pPixmapBack);
}
void WPushButton::setup(QDomNode node) {
// Number of states
int iNumStates = selectNodeInt(node, "NumberStates");
setStates(iNumStates);
// Set background pixmap if available
if (!selectNode(node, "BackPath").isNull()) {
setPixmapBackground(getPath(selectNodeQString(node, "BackPath")));
}
// Load pixmaps for associated states
QDomNode state = selectNode(node, "State");
while (!state.isNull()) {
if (state.isElement() && state.nodeName() == "State") {
setPixmap(selectNodeInt(state, "Number"), true, getPath(selectNodeQString(state, "Pressed")));
setPixmap(selectNodeInt(state, "Number"), false, getPath(selectNodeQString(state, "Unpressed")));
}
state = state.nextSibling();
}
m_bLeftClickForcePush = selectNodeQString(node, "LeftClickIsPushButton")
.contains("true", Qt::CaseInsensitive);
m_bRightClickForcePush = selectNodeQString(node, "RightClickIsPushButton")
.contains("true", Qt::CaseInsensitive);
QDomNode con = selectNode(node, "Connection");
while (!con.isNull()) {
// Get ConfigKey
QString key = selectNodeQString(con, "ConfigKey");
ConfigKey configKey;
configKey.group = key.left(key.indexOf(","));
configKey.item = key.mid(key.indexOf(",")+1);
ControlPushButton* p = dynamic_cast<ControlPushButton*>(
ControlObject::getControl(configKey));
if (p == NULL) {
// A NULL here either means that this control is not a
// ControlPushButton or it does not exist. This logic is
// specific to push-buttons, so skip it either way.
con = con.nextSibling();
continue;
}
bool isLeftButton = false;
bool isRightButton = false;
if (!selectNode(con, "ButtonState").isNull()) {
if (selectNodeQString(con, "ButtonState").contains("LeftButton", Qt::CaseInsensitive)) {
isLeftButton = true;
} else if (selectNodeQString(con, "ButtonState").contains("RightButton", Qt::CaseInsensitive)) {
isRightButton = true;
}
}
// Based on whether the control is mapped to the left or right button,
// record the button mode.
if (isLeftButton) {
m_leftButtonMode = p->getButtonMode();
} else if (isRightButton) {
m_rightButtonMode = p->getButtonMode();
}
con = con.nextSibling();
}
}
void WPushButton::setStates(int iStates) {
m_iNoStates = iStates;
m_fValue = 0.;
m_bPressed = false;
// If pixmap array is already allocated, delete it
delete [] m_pPixmaps;
m_pPixmaps = NULL;
if (iStates > 0) {
m_pPixmaps = new QPixmap*[2 * m_iNoStates];
for (int i = 0; i < (2 * m_iNoStates); ++i) {
m_pPixmaps[i] = NULL;
}
}
}
void WPushButton::setPixmap(int iState, bool bPressed, const QString &filename) {
int pixIdx = (iState * 2) + (bPressed ? 1 : 0);
if (pixIdx < 2 * m_iNoStates) {
m_pPixmaps[pixIdx] = WPixmapStore::getPixmap(filename);
if (!m_pPixmaps[pixIdx]) {
qDebug() << "WPushButton: Error loading pixmap:" << filename;
} else {
// Set size of widget equal to pixmap size
setFixedSize(m_pPixmaps[pixIdx]->size());
}
}
}
void WPushButton::setPixmapBackground(const QString &filename) {
// Load background pixmap
m_pPixmapBack = WPixmapStore::getPixmap(filename);
if (!m_pPixmapBack) {
qDebug() << "WPushButton: Error loading background pixmap:" << filename;
}
}
void WPushButton::setValue(double v) {
m_fValue = v;
if (m_iNoStates==1) {
if (m_fValue==1.) {
m_bPressed = true;
} else {
m_bPressed = false;
}
}
update();
}
void WPushButton::paintEvent(QPaintEvent *) {
if (m_iNoStates>0) {
int idx = (((int)m_fValue % m_iNoStates) * 2) + m_bPressed;
if (m_pPixmaps[idx]) {
QPainter p(this);
if(m_pPixmapBack) {
p.drawPixmap(0, 0, *m_pPixmapBack);
}
p.drawPixmap(0, 0, *m_pPixmaps[idx]);
}
}
}
void WPushButton::mousePressEvent(QMouseEvent * e) {
const bool leftClick = e->button() == Qt::LeftButton;
const bool rightClick = e->button() == Qt::RightButton;
const bool leftPowerWindowStyle = m_leftButtonMode == ControlPushButton::POWERWINDOW;
if (leftPowerWindowStyle && m_iNoStates == 2) {
if (leftClick) {
if (m_fValue == 0.0f) {
m_clickTimer.setSingleShot(true);
m_clickTimer.start(ControlPushButtonBehavior::kPowerWindowTimeMillis);
}
m_fValue = 1.0f;
m_bPressed = true;
emit(valueChangedLeftDown(1.0f));
update();
}
return;
}
if (rightClick) {
// This is the secondary button function, it does not change m_fValue
// due the leak of visual feedback we do not allow a toggle function
if (m_bRightClickForcePush) {
m_bPressed = true;
emit(valueChangedRightDown(1.0f));
update();
} else if (m_iNoStates == 1) {
// This is a Pushbutton
m_fValue = 1.0f;
m_bPressed = true;
emit(valueChangedRightDown(1.0f));
update();
}
// Do not allow right-clicks to change button state other than when
// forced to be a push button. This is how Mixxx <1.8.0 worked so
// keep it that way. For a multi-state button, really only one click
// type (left/right) should be able to change the state. One problem
// with this is that you can get the button out of sync with its
// underlying control. For example the PFL buttons on Jus's skins
// could get out of sync with the button state. rryan 9/2010
return;
}
if (leftClick) {
double emitValue;
if (m_bLeftClickForcePush) {
// This may a button with different functions on each mouse button
// m_fValue is changed by a separate feedback connection
emitValue = 1.0f;
} else if (m_iNoStates == 1) {
// This is a Pushbutton
m_fValue = emitValue = 1.0f;
} else {
// Toggle thru the states
m_fValue = emitValue = (int)(m_fValue+1.)%m_iNoStates;
}
m_bPressed = true;
emit(valueChangedLeftDown(emitValue));
update();
}
}
void WPushButton::focusOutEvent(QFocusEvent* e) {
Q_UNUSED(e);
m_bPressed = false;
update();
}
void WPushButton::mouseReleaseEvent(QMouseEvent * e) {
const bool leftClick = e->button() == Qt
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