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/* This file is part of the KDE project
Copyright (C) 2001, 2002, 2003 The Karbon Developers
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <tqcursor.h>
#include <tqevent.h>
#include <tqlabel.h>
#include "karbon_part.h"
#include "karbon_view.h"
#include "vcanvas.h"
#include "vcomposite.h"
#include "vglobal.h"
#include "vpainter.h"
#include "vpainterfactory.h"
#include "vshapecmd.h"
#include "vshapetool.h"
#include "vselection.h"
#include "vcursor.h"
VShapeTool::VShapeTool( KarbonView *view, const char *name, bool polar )
: VTool( view, name )
{
m_cursor = new TQCursor( VCursor::createCursor( VCursor::CrossHair ) );
m_isPolar = polar;
m_isSquare = false;
m_isCentered = false;
}
VShapeTool::~VShapeTool()
{
delete m_cursor;
}
TQString
VShapeTool::contextHelp()
{
TQString s = i18n( "<qt><b>Shape tool</b><br>" );
s += i18n( "<i>Click and drag</i> to place your own shape.<br>" );
s += i18n( "<i>Click</i> to place a shape using the tool properties values.</qt>" );
return s;
}
void
VShapeTool::activate()
{
VTool::activate();
view()->setCursor( *m_cursor );
view()->part()->document().selection()->showHandle( true );
}
TQString
VShapeTool::statusText()
{
return uiname();
}
void
VShapeTool::draw()
{
VPainter* painter = view()->painterFactory()->editpainter();
painter->setRasterOp( TQt::NotROP );
VPath* composite = shape();
composite->setState( VPath::edit );
composite->draw( painter, &composite->boundingBox() );
delete( composite );
}
void
VShapeTool::mouseButtonPress()
{
recalc();
// Draw new object:
draw();
}
void
VShapeTool::mouseButtonRelease()
{
draw();
recalc();
if( showDialog() )
{
VPath* composite = shape( true );
if( composite )
{
VShapeCmd* cmd = new VShapeCmd(
&view()->part()->document(),
uiname(), composite, icon() );
view()->part()->addCommand( cmd, true );
}
}
m_isSquare = false;
m_isCentered = false;
}
void
VShapeTool::mouseDrag()
{
// Erase old object:
draw();
recalc();
// Draw new object:
draw();
}
void
VShapeTool::mouseDragRelease()
{
//recalc();
VShapeCmd* cmd = new VShapeCmd(
&view()->part()->document(),
uiname(), shape(), icon() );
view()->part()->addCommand( cmd, true );
m_isSquare = false;
m_isCentered = false;
}
void
VShapeTool::mouseDragShiftPressed()
{
// Erase old object:
draw();
m_isSquare = true;
recalc();
// Draw new object:
draw();
}
void
VShapeTool::mouseDragCtrlPressed()
{
// Erase old object:
draw();
m_isCentered = true;
recalc();
// Draw new object:
draw();
}
void
VShapeTool::mouseDragShiftReleased()
{
// Erase old object:
draw();
m_isSquare = false;
recalc();
// Draw new object:
draw();
}
void
VShapeTool::mouseDragCtrlReleased()
{
// Erase old object:
draw();
m_isCentered = false;
recalc();
// Draw new object:
draw();
}
void
VShapeTool::cancel()
{
// Erase old object:
if ( isDragging() )
{
draw();
m_isSquare = false;
m_isCentered = false;
}
}
void
VShapeTool::recalc()
{
m_isSquare = shiftPressed();
m_isCentered = ctrlPressed();
KoPoint _first = view()->canvasWidget()->snapToGrid( first() );
KoPoint _last = view()->canvasWidget()->snapToGrid( last() );
// Calculate radius and angle:
if( m_isPolar )
{
// Radius:
m_d1 = sqrt(
( _last.x() - _first.x() ) * ( _last.x() - _first.x() ) +
( _last.y() - _first.y() ) * ( _last.y() - _first.y() ) );
// Angle:
m_d2 = atan2( _last.y() - _first.y(), _last.x() - _first.x() );
// Define pi/2 as "0.0":
m_d2 -= VGlobal::pi_2;
m_p = _first;
}
else
// Calculate width and height:
{
m_d1 = _last.x() - _first.x();
m_d2 = _last.y() - _first.y();
const int m_sign1 = VGlobal::sign( m_d1 );
// TODO: revert when we introduce y-mirroring:
const int m_sign2 = VGlobal::sign( -m_d2 );
// Make unsigned:
if( m_d1 < 0.0 )
m_d1 = -m_d1;
if( m_d2 < 0.0 )
m_d2 = -m_d2;
if ( m_isSquare )
{
if ( m_d1 > m_d2 )
m_d2 = m_d1;
else
m_d1 = m_d2;
}
m_p.setX(
_first.x() - ( m_sign1 == -1 ? m_d1 : 0.0 ) );
// TODO: revert when we introduce y-mirroring:
m_p.setY(
_first.y() + ( m_sign2 == -1 ? m_d2 : 0.0 ) );
if ( m_isCentered )
{
m_p.setX( m_p.x() - m_sign1 * tqRound( m_d1 * 0.5 ) );
m_p.setY( m_p.y() + m_sign2 * tqRound( m_d2 * 0.5 ) );
}
}
}
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