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/***************************************************************************
* *
* 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. *
* *
* copyright (C) 2004-2006 *
* Umbrello UML Modeller Authors <uml-devel@uml.sf.net> *
***************************************************************************/
// own header
#include "toolbarstate.h"
// qt includes
#include <qwmatrix.h> // need for inverseWorldMatrix.map
// app includes
#include "associationwidget.h"
#include "messagewidget.h"
#include "uml.h"
#include "umlview.h"
#include "umlwidget.h"
ToolBarState::~ToolBarState() {
delete m_pMouseEvent;
}
void ToolBarState::init() {
m_pUMLView->viewport()->setMouseTracking(false);
m_pMouseEvent = 0;
m_currentWidget = 0;
m_currentAssociation = 0;
connect(m_pUMLView, SIGNAL(sigAssociationRemoved(AssociationWidget*)),
this, SLOT(slotAssociationRemoved(AssociationWidget*)));
connect(m_pUMLView, SIGNAL(sigWidgetRemoved(UMLWidget*)),
this, SLOT(slotWidgetRemoved(UMLWidget*)));
}
void ToolBarState::cleanBeforeChange() {
disconnect(m_pUMLView, SIGNAL(sigAssociationRemoved(AssociationWidget*)),
this, SLOT(slotAssociationRemoved(AssociationWidget*)));
disconnect(m_pUMLView, SIGNAL(sigWidgetRemoved(UMLWidget*)),
this, SLOT(slotWidgetRemoved(UMLWidget*)));
}
void ToolBarState::mousePress(QMouseEvent* ome) {
setMouseEvent(ome, QEvent::MouseButtonPress);
m_pUMLView->viewport()->setMouseTracking(true);
//TODO Doesn't another way of emiting the signal exist? A method only for
//that seems a bit dirty.
m_pUMLView->emitRemovePopupMenu();
// TODO: Check who needs this.
m_pUMLView->setPos(m_pMouseEvent->pos());
//TODO check why
m_pUMLView->setPaste(false);
setCurrentElement();
if (getCurrentWidget()) {
mousePressWidget();
} else if (getCurrentAssociation()) {
mousePressAssociation();
} else {
mousePressEmpty();
}
}
void ToolBarState::mouseRelease(QMouseEvent* ome) {
setMouseEvent(ome, QEvent::MouseButtonRelease);
// Set the position of the mouse
// TODO, should only be available in this state?
m_pUMLView->setPos(m_pMouseEvent->pos());
m_pUMLView->viewport()->setMouseTracking(false);
if (getCurrentWidget()) {
mouseReleaseWidget();
setCurrentWidget(0);
} else if (getCurrentAssociation()) {
mouseReleaseAssociation();
setCurrentAssociation(0);
} else {
mouseReleaseEmpty();
}
// Default, rightbutton changes the tool.
// The arrow tool overrides the changeTool() function.
changeTool();
}
void ToolBarState::mouseDoubleClick(QMouseEvent* ome) {
setMouseEvent(ome, QEvent::MouseButtonDblClick);
UMLWidget* currentWidget = m_pUMLView->getWidgetAt(m_pMouseEvent->pos());
AssociationWidget* currentAssociation = getAssociationAt(m_pMouseEvent->pos());
if (currentWidget) {
setCurrentWidget(currentWidget);
mouseDoubleClickWidget();
setCurrentWidget(0);
} else if (currentAssociation) {
setCurrentAssociation(currentAssociation);
mouseDoubleClickAssociation();
setCurrentAssociation(0);
} else {
mouseDoubleClickEmpty();
}
}
void ToolBarState::mouseMove(QMouseEvent* ome) {
setMouseEvent(ome, QEvent::MouseMove);
if (getCurrentWidget()) {
mouseMoveWidget();
} else if (getCurrentAssociation()) {
mouseMoveAssociation();
} else {
mouseMoveEmpty();
}
//Scrolls the view
int vx = ome->x();
int vy = ome->y();
int contsX = m_pUMLView->contentsX();
int contsY = m_pUMLView->contentsY();
int visw = m_pUMLView->visibleWidth();
int vish = m_pUMLView->visibleHeight();
int dtr = visw - (vx-contsX);
int dtb = vish - (vy-contsY);
int dtt = (vy-contsY);
int dtl = (vx-contsX);
if (dtr < 30) m_pUMLView->scrollBy(30-dtr,0);
if (dtb < 30) m_pUMLView->scrollBy(0,30-dtb);
if (dtl < 30) m_pUMLView->scrollBy(-(30-dtl),0);
if (dtt < 30) m_pUMLView->scrollBy(0,-(30-dtt));
}
void ToolBarState::slotAssociationRemoved(AssociationWidget* association) {
if (association == getCurrentAssociation()) {
setCurrentAssociation(0);
}
}
void ToolBarState::slotWidgetRemoved(UMLWidget* widget) {
if (widget == getCurrentWidget()) {
setCurrentWidget(0);
}
}
ToolBarState::ToolBarState(UMLView *umlView) : QObject(umlView), m_pUMLView(umlView) {
m_pMouseEvent = NULL;
init();
}
void ToolBarState::setCurrentElement() {
// Check associations.
AssociationWidget* association = getAssociationAt(m_pMouseEvent->pos());
if (association) {
setCurrentAssociation(association);
return;
}
// Check messages.
//TODO check why message widgets are treated different
MessageWidget* message = getMessageAt(m_pMouseEvent->pos());
if (message) {
setCurrentWidget(message);
return;
}
// Check widgets.
UMLWidget *widget = m_pUMLView->getWidgetAt(m_pMouseEvent->pos());
if (widget) {
setCurrentWidget(widget);
return;
}
}
void ToolBarState::mousePressAssociation() {
}
void ToolBarState::mousePressWidget() {
}
void ToolBarState::mousePressEmpty() {
m_pUMLView->clearSelected();
}
void ToolBarState::mouseReleaseAssociation() {
}
void ToolBarState::mouseReleaseWidget() {
}
void ToolBarState::mouseReleaseEmpty() {
}
void ToolBarState::mouseDoubleClickAssociation() {
}
void ToolBarState::mouseDoubleClickWidget() {
}
void ToolBarState::mouseDoubleClickEmpty() {
m_pUMLView->clearSelected();
}
void ToolBarState::mouseMoveAssociation() {
}
void ToolBarState::mouseMoveWidget() {
}
void ToolBarState::mouseMoveEmpty() {
}
void ToolBarState::changeTool() {
if (m_pMouseEvent->state() == Qt::RightButton) {
UMLApp::app()->getWorkToolBar()->setDefaultTool();
}
}
void ToolBarState::setMouseEvent(QMouseEvent* ome, const QEvent::Type &type) {
if (m_pMouseEvent) delete m_pMouseEvent;
m_pMouseEvent = new QMouseEvent(type, m_pUMLView->inverseWorldMatrix().map(ome->pos()),
ome->button(),ome->state());
}
MessageWidget* ToolBarState::getMessageAt(const QPoint& pos) {
MessageWidget* message = 0;
for (MessageWidgetListIt it(m_pUMLView->getMessageList());
(message = it.current()) != 0; ++it) {
if (message->isVisible() && message->onWidget(pos)) {
return message;
}
}
return message;
}
AssociationWidget* ToolBarState::getAssociationAt(const QPoint& pos) {
AssociationWidget* association = 0;
for (AssociationWidgetListIt it(m_pUMLView->getAssociationList());
(association = it.current()) != 0; ++it) {
if (association->onAssociation(pos)) {
return association;
}
}
return association;
}
#include "toolbarstate.moc"
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