qtreechangeview.cpp #1

// Implementation of QTreeChangeView. 

#include <clientapi.h>
#include <qbitmap.h>
#include <qcanvas.h>
#include <qcursor.h>
#include <qlabel.h>
#include <qdragobject.h>
#include <qmenubar.h>
#include <qmessagebox.h>
#include <qtooltip.h>

#include "qtreeitem.h"

#include "changesorter.h"
#include "filehead.h"
#include "filelogcache.h"

#include "clientchangeuser.h"
#include "qtreechangenum.h"
#include "qtreechangebar.h"

#include "clientjobdescuser.h"
#include "qtreejobtext.h"
#include "qtreejobbar.h"

#include "qtreerevtext.h"
#include "qtreerevball.h"
#include "qtreefiletext.h"
#include "qtreefilestripe.h"
#include "qtreearrow.h"
#include "qtreecanvas.h"

#include "qtreetooltip.h"

#define QTREEWINDOW_H
#include "qtreewindow.h"

#include "img/qembed.h"

#include "qtreechangeview.h"


QTreeChangeView::QTreeChangeView( QTreeCanvas* canvas, QTreeWindow* parent )
:QCanvasView ( canvas, parent, "changeview", WStyle_NoBorder ), 
 qtw( parent ), qtcanvas( canvas ), tips( QTreeToolTip( this ) )
{
	maxheight = canvas->ChangeSize().height() + 4;
	realheight = maxheight; // start with jobs visible 

	setMargins( TREE_ICONWIDTH, 0, 0, 0 );
	InitIcons();

	AdjustGeometry();

	// We don't need no stinking scrollbars! 
	setVScrollBarMode( AlwaysOff );
	setHScrollBarMode( AlwaysOff );
}

QTreeChangeView::~QTreeChangeView()
{

}

void QTreeChangeView::InitIcons()
{
	QPixmap cicon = QPixmap( qembed_findData( "subchng.bmp" ) );
	cicon.setMask( cicon.createHeuristicMask() );
	changelabel = new QLabel( this );
	changelabel->setGeometry( 1, 1, 
		TREE_ICONWIDTH, TREE_BARHEIGHT + 1 );
	changelabel->setAlignment( Qt::AlignHCenter | Qt::AlignVCenter );
	changelabel->setPixmap( cicon );
	changelabel->setFrameStyle( QFrame::Panel | QFrame::Plain );
	changelabel->setBackgroundColor( TREE_COLCBAR );

	QPixmap jicon = QPixmap( qembed_findData( "jobs.bmp" ) );
	jicon.setMask( jicon.createHeuristicMask() );
	joblabel = new QLabel( this );
	joblabel->setGeometry( 1, 1 + TREE_BARHEIGHT, 
		TREE_ICONWIDTH, maxheight - TREE_BARHEIGHT - 3 );
	joblabel->setAlignment( Qt::AlignHCenter | Qt::AlignVCenter );
	joblabel->setPixmap( jicon );
	joblabel->setFrameStyle( QFrame::Panel | QFrame::Plain );
    joblabel->setBackgroundColor( TREE_COLCBAR );
}

void QTreeChangeView::AdjustGeometry()
{
	setGeometry
		(
		0, 
		qtw->menubar->height(), 
		qtw->visibleWidth() + TREE_ICONWIDTH + 3,
		realheight
		);
}


void QTreeChangeView::contentsWheelEvent( QWheelEvent* e )
{
	// Yes, to ignore the event, you call accept().  Not ignore().  
	e->accept();
}

void QTreeChangeView::contentsMouseDoubleClickEvent(QMouseEvent* e)
{
	// Only left clicks.  Right clicks might one day do somethin' else. 
	if ( e->button() == LeftButton )
		e->accept();
	else
	{
		e->ignore();
		return;
	}

	// Do collision detection on the clicked point, and figure out which
	// CanvasItem, if any, is one that we're interested in. 
	QCanvasItemList items = canvas()->collisions( e->pos() );
	QCanvasItem* item = NULL;
	while ( !items.empty() )
	{
		item = items.front();
		if ( item->rtti() == RTTI_CHANGE || item->rtti() == RTTI_JOB ) break;
		items.pop_front();
	}
	if ( item == NULL ) return;

	QCursor myc = cursor();
	setCursor( QCursor( WaitCursor ) );

	// Cast the pointer and spawn the appropriate dialog. 
	switch ( item->rtti() )
	{
	case RTTI_CHANGE:

		( (QTreeChangeNum*)item )->InfoDialog( qtw, qtw->client, qtw->error );
		break;
	case RTTI_JOB:
		( (QTreeJobText*)item )->InfoDialog( qtw, qtw->client, qtw->error );
		break;
	}

	setCursor( myc );
}

// Drag 'n drop support. 
void QTreeChangeView::contentsMousePressEvent( QMouseEvent* e )
{
	// The first half of this method looks a lot like 
	// contentsMouseDoubleClickEvent(), doens't it? 

	// Only drag with left button. 
	if ( e->button() == LeftButton )
		e->accept();
	else
	{
		e->ignore();
		return;
	}

	// Do collision detection. 
	QCanvasItemList items = canvas()->collisions( e->pos() );
	QCanvasItem* item = NULL;
	while ( !items.empty() )
	{
		item = items.front();
		if ( item->rtti() == RTTI_CHANGE || 
			 item->rtti() == RTTI_JOB ) break;
		items.pop_front();
	}
	if ( item == NULL || 
		( item->rtti() != RTTI_CHANGE && item->rtti() != RTTI_JOB )	)
	{
		// no object hit - do a gridline instead!
		qtcanvas->GridLine( e->pos().x() );
		qtcanvas->update();
		return;
	}

	// start a dragging action
	QTextDrag* d;
	switch ( item->rtti() )
	{
	case RTTI_CHANGE:
		d = new QTextDrag(
			( (QTreeChangeNum*)item )->text(), this );
		d->drag();
		break;
	case RTTI_JOB:
		d = new QTextDrag(
			( (QTreeJobText*)item )->jobname, this );
		d->drag();
		break;
	}
}