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koffice/chalk/plugins/tools/tool_crop/kis_tool_crop.cc

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/*
* kis_tool_crop.cc -- part of Chalk
*
* Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org>
* Copyright (c) 2005 Michael Thaler <michael.thaler@physik.tu-muenchen.de>
* Copyright (c) 2006 Cyrille Berger <cberger@cberger.net>
*
* 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.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <tqcheckbox.h>
#include <tqcombobox.h>
#include <tqobject.h>
#include <tqpainter.h>
#include <tqpen.h>
#include <tqpushbutton.h>
#include <tqrect.h>
#include <kdebug.h>
#include <kaction.h>
#include <kcommand.h>
#include <klocale.h>
#include <knuminput.h>
#include <kdebug.h>
#include <kis_global.h>
#include <kis_painter.h>
#include <kis_canvas_controller.h>
#include <kis_canvas_subject.h>
#include <kis_cursor.h>
#include <kis_image.h>
#include <kis_undo_adapter.h>
#include <kis_button_press_event.h>
#include <kis_button_release_event.h>
#include <kis_move_event.h>
#include <kis_selected_transaction.h>
#include <kis_selection.h>
#include <kis_layer.h>
#include <kis_crop_visitor.h>
#include "kis_tool_crop.h"
#include "wdg_tool_crop.h"
#include "kis_canvas.h"
#include "kis_canvas_painter.h"
KisToolCrop::KisToolCrop()
: super(i18n("Crop"))
{
setName("tool_crop");
m_cropCursor = KisCursor::load("tool_crop_cursor.png", 6, 6);
setCursor(m_cropCursor);
m_subject = 0;
m_selecting = false;
m_rectCrop = TQRect(0, 0, 0, 0);
m_handleSize = 13;
m_haveCropSelection = false;
m_optWidget = 0;
}
KisToolCrop::~KisToolCrop()
{
}
void KisToolCrop::update(KisCanvasSubject *subject)
{
m_subject = subject;
super::update(m_subject);
}
void KisToolCrop::activate()
{
super::activate();
// No current crop rectangle, try to use the selection of the device to make a rectangle
if (m_subject && m_subject->currentImg() && m_subject->currentImg()->activeDevice()) {
KisPaintDeviceSP device = m_subject->currentImg()->activeDevice();
if (!device->hasSelection()) {
//m_rectCrop = m_subject->currentImg()->bounds();
//validateSelection();
m_haveCropSelection = false;
m_selecting = false;
}
else {
m_rectCrop = device->selection()->selectedRect();
validateSelection();
crop();
}
}
}
void KisToolCrop::deactivate()
{
clearRect();
}
void KisToolCrop::paint(KisCanvasPainter& gc)
{
paintOutlineWithHandles(gc, TQRect());
}
void KisToolCrop::paint(KisCanvasPainter& gc, const TQRect& rc)
{
paintOutlineWithHandles(gc, rc);
}
void KisToolCrop::clearRect()
{
kdDebug() << "Clearing\n";
if (m_subject) {
KisCanvasController *controller = m_subject->canvasController();
KisImageSP img = m_subject->currentImg();
Q_ASSERT(controller);
controller->kiscanvas()->update();
m_rectCrop = TQRect(0,0,0,0);
updateWidgetValues();
m_selecting = false;
}
}
void KisToolCrop::buttonPress(KisButtonPressEvent *e)
{
if (m_subject) {
KisImageSP img = m_subject->currentImg();
if (img && img->activeDevice() && e->button() == Qt::LeftButton) {
TQPoint pos = e->pos().floorTQPoint();
TQRect b = img->bounds();
if (pos.x() < b.x())
pos.setX(b.x());
else if (pos.x() > b.x() + b.width())
pos.setX(b.x() + b.width());
if (pos.y() < b.y())
pos.setY(b.y());
else if (pos.y() > b.y() + b.height())
pos.setY(b.y() + b.height());
m_selecting = true;
if( !m_haveCropSelection ) //if the selection is not set
{
m_rectCrop = TQRect( pos.x(), pos.y(), 0, 0);
paintOutlineWithHandles();
}
else
{
KisCanvasController *controller = m_subject->canvasController();
m_mouseOnHandleType = mouseOnHandle(controller ->windowToView(pos));
m_dragStart = pos;
}
updateWidgetValues();
}
}
}
void KisToolCrop::move(KisMoveEvent *e)
{
if ( m_subject && m_subject->currentImg())
{
if( m_selecting ) //if the user selects
{
if( !m_haveCropSelection ) //if the cropSelection is not yet set
{
paintOutlineWithHandles();
m_rectCrop.setBottomRight( e->pos().floorTQPoint());
KisImageSP image = m_subject->currentImg();
m_rectCrop.setRight( TQMIN(m_rectCrop.right(), image->width()));
m_rectCrop.setBottom( TQMIN(m_rectCrop.bottom(), image->width()));
m_rectCrop = m_rectCrop.normalize();
paintOutlineWithHandles();
}
else //if the crop selection is set
{
m_dragStop = e->pos().floorTQPoint();
if (m_mouseOnHandleType != None && m_dragStart != m_dragStop ) {
TQ_INT32 imageWidth = m_subject->currentImg()->width();
TQ_INT32 imageHeight = m_subject->currentImg()->height();
paintOutlineWithHandles();
TQPoint pos = e->pos().floorTQPoint();
if( m_mouseOnHandleType == Inside )
{
m_rectCrop.moveBy( ( m_dragStop.x() - m_dragStart.x() ), ( m_dragStop.y() - m_dragStart.y() ) );
if( m_rectCrop.left() < 0 )
{
m_rectCrop.moveLeft( 0 );
}
if( m_rectCrop.right() > imageWidth )
{
m_rectCrop.moveRight( imageWidth );
}
if( m_rectCrop.top() < 0 )
{
m_rectCrop.moveTop( 0 );
}
if( m_rectCrop.bottom() > imageHeight )
{
m_rectCrop.moveBottom( imageHeight );
}
} else if(m_optWidget->boolRatio->isChecked())
{
TQPoint drag = m_dragStop - m_dragStart;
if( ! m_optWidget->boolWidth->isChecked() && !m_optWidget->boolHeight->isChecked() )
{
switch (m_mouseOnHandleType)
{
case (UpperLeft):
{
TQ_INT32 dep = (drag.x() + drag.y()) / 2;
m_rectCrop.setTop( m_rectCrop.top() + dep );
m_rectCrop.setLeft( (int) ( m_rectCrop.right() - m_optWidget->doubleRatio->value() * m_rectCrop.height() ) );
}
break;
case (LowerRight):
{
TQ_INT32 dep = (drag.x() + drag.y()) / 2;
m_rectCrop.setBottom( m_rectCrop.bottom() + dep );
m_rectCrop.setWidth( (int) ( m_optWidget->doubleRatio->value() * m_rectCrop.height() ) );
break;
}
case (UpperRight):
{
TQ_INT32 dep = (drag.x() - drag.y()) / 2;
m_rectCrop.setTop( m_rectCrop.top() - dep );
m_rectCrop.setWidth( (int) ( m_optWidget->doubleRatio->value() * m_rectCrop.height() ) );
break;
}
case (LowerLeft):
{
TQ_INT32 dep = (drag.x() - drag.y()) / 2;
m_rectCrop.setBottom( m_rectCrop.bottom() - dep );
m_rectCrop.setLeft( (int) ( m_rectCrop.right() - m_optWidget->doubleRatio->value() * m_rectCrop.height() ) );
break;
}
case (Upper):
m_rectCrop.setTop( pos.y() + m_dy );
m_rectCrop.setWidth( (int) (m_rectCrop.height() * m_optWidget->doubleRatio->value()) );
break;
case (Lower):
m_rectCrop.setBottom( pos.y() + m_dy );
m_rectCrop.setWidth( (int) (m_rectCrop.height() * m_optWidget->doubleRatio->value()) );
break;
case (Left):
m_rectCrop.setLeft( pos.x() + m_dx );
m_rectCrop.setHeight( (int) (m_rectCrop.width() / m_optWidget->doubleRatio->value()) );
break;
case (Right):
m_rectCrop.setRight( pos.x() + m_dx );
m_rectCrop.setHeight( (int) (m_rectCrop.width() / m_optWidget->doubleRatio->value()) );
break;
case (Inside): // never happen
break;
}
}
} else {
if( m_optWidget->boolWidth->isChecked() )
{
m_rectCrop.setWidth( m_optWidget->intWidth->value() + 1 );
} else {
switch (m_mouseOnHandleType)
{
case (LowerLeft):
case (Left):
case (UpperLeft):
m_rectCrop.setLeft( pos.x() + m_dx );
break;
case (Right):
case (UpperRight):
case (LowerRight):
m_rectCrop.setRight( pos.x() + m_dx );
break;
default:
break;
}
}
if( m_optWidget->boolHeight->isChecked() )
{
m_rectCrop.setHeight( m_optWidget->intHeight->value() + 1 );
} else {
switch (m_mouseOnHandleType)
{
case (UpperLeft):
case (Upper):
case (UpperRight):
m_rectCrop.setTop( pos.y() + m_dy );
break;
case (LowerRight):
case (LowerLeft):
case (Lower):
m_rectCrop.setBottom( pos.y() + m_dy );
break;
default:
break;
}
}
}
if( m_rectCrop.height() < 0)
{
if( m_mouseOnHandleType == Lower)
m_mouseOnHandleType = Upper;
else if( m_mouseOnHandleType == LowerLeft)
m_mouseOnHandleType = UpperLeft;
else if( m_mouseOnHandleType == LowerRight)
m_mouseOnHandleType = UpperRight;
else if( m_mouseOnHandleType == Upper)
m_mouseOnHandleType = Lower;
else if( m_mouseOnHandleType == UpperLeft)
m_mouseOnHandleType = LowerLeft;
else if( m_mouseOnHandleType == UpperRight)
m_mouseOnHandleType = LowerRight;
}
if( m_rectCrop.width() < 0)
{
if( m_mouseOnHandleType == Right)
m_mouseOnHandleType = Left;
else if( m_mouseOnHandleType == UpperRight)
m_mouseOnHandleType = UpperLeft;
else if( m_mouseOnHandleType == LowerRight)
m_mouseOnHandleType = LowerLeft;
else if( m_mouseOnHandleType == Left)
m_mouseOnHandleType = Right;
else if( m_mouseOnHandleType == UpperLeft)
m_mouseOnHandleType = UpperRight;
else if( m_mouseOnHandleType == LowerLeft)
m_mouseOnHandleType = LowerRight;
}
m_rectCrop = m_rectCrop.normalize();
m_rectCrop = m_rectCrop.intersect( TQRect(0,0, imageWidth + 1, imageHeight + 1 ) );
m_dragStart = e->pos().floorTQPoint();
paintOutlineWithHandles();
}
}
updateWidgetValues();
}
else //if we are not selecting
{
if ( m_haveCropSelection ) //if the crop selection is set
{
KisCanvasController *controller = m_subject->canvasController();
TQ_INT32 type = mouseOnHandle(controller->windowToView(e->pos().floorTQPoint()));
//set resize cursor if we are on one of the handles
setMoveResizeCursor(type);
}
}
}
}
void KisToolCrop::updateWidgetValues(bool updateratio)
{
TQRect r = realRectCrop();
setOptionWidgetX(r.x());
setOptionWidgetY(r.y());
setOptionWidgetWidth(r.width() );
setOptionWidgetHeight(r.height() );
if(updateratio && !m_optWidget->boolRatio->isChecked() )
setOptionWidgetRatio((double)r.width() / (double)r.height() );
}
void KisToolCrop::buttonRelease(KisButtonReleaseEvent *e)
{
if (m_subject && m_subject->currentImg() && m_selecting && e->button() == Qt::LeftButton) {
m_selecting = false;
m_haveCropSelection = true;
paintOutlineWithHandles();
validateSelection();
paintOutlineWithHandles();
}
}
void KisToolCrop::doubleClick(KisDoubleClickEvent *)
{
if (m_haveCropSelection) crop();
}
void KisToolCrop::validateSelection(bool updateratio)
{
if (m_subject) {
KisImageSP image = m_subject->currentImg();
if (image) {
TQ_INT32 imageWidth = image->width();
TQ_INT32 imageHeight = image->height();
m_rectCrop.setLeft(TQMAX(0, m_rectCrop.left()));
m_rectCrop.setTop(TQMAX(0, m_rectCrop.top()));
m_rectCrop.setRight(TQMIN(imageWidth, m_rectCrop.right()));
m_rectCrop.setBottom(TQMIN(imageHeight, m_rectCrop.bottom()));
updateWidgetValues(updateratio);
}
}
}
void KisToolCrop::paintOutlineWithHandles()
{
if (m_subject) {
KisCanvasController *controller = m_subject->canvasController();
KisCanvas *canvas = controller->kiscanvas();
KisCanvasPainter gc(canvas);
TQRect rc;
paintOutlineWithHandles(gc, rc);
}
}
void KisToolCrop::paintOutlineWithHandles(KisCanvasPainter& gc, const TQRect&)
{
if (m_subject && (m_selecting || m_haveCropSelection)) {
KisCanvasController *controller = m_subject->canvasController();
RasterOp op = gc.rasterOp();
TQPen old = gc.pen();
TQPen pen(TQt::SolidLine);
pen.setWidth(1);
TQPoint start;
TQPoint end;
Q_ASSERT(controller);
start = controller->windowToView(m_rectCrop.topLeft());
end = controller->windowToView(m_rectCrop.bottomRight());
gc.setRasterOp(TQt::NotROP);
gc.setPen(pen);
//draw handles
m_handlesRegion = handles(TQRect(start, end));
TQ_INT32 startx;
TQ_INT32 starty;
TQ_INT32 endx;
TQ_INT32 endy;
if(start.x()<=end.x())
{
startx=start.x();
endx=end.x();
}
else
{
startx=end.x();
endx=start.x();
}
if(start.y()<=end.y())
{
starty=start.y();
endy=end.y();
}
else
{
starty=end.y();
endy=start.y();
}
//draw upper line of selection
gc.drawLine(startx + m_handleSize / 2 + 1, starty, startx + (endx - startx - m_handleSize) / 2 + 1, starty);
gc.drawLine(startx + (endx - startx + m_handleSize) / 2 + 1, starty, endx - m_handleSize / 2, starty);
//draw lower line of selection
gc.drawLine(startx + m_handleSize / 2 + 1, endy, startx + (endx - startx - m_handleSize) / 2 + 1, endy);
gc.drawLine(startx + (endx - startx + m_handleSize) / 2 + 1, endy, endx - m_handleSize / 2 , endy);
//draw right line of selection
gc.drawLine(startx, starty + m_handleSize / 2 + 1, startx, starty + (endy - starty - m_handleSize) / 2 + 1);
gc.drawLine(startx, starty + (endy - starty + m_handleSize) / 2 + 1, startx, endy - m_handleSize / 2);
//draw left line of selection
gc.drawLine(endx, starty + m_handleSize / 2 + 1, endx, starty + (endy - starty - m_handleSize) / 2 + 1);
gc.drawLine(endx, starty + (endy - starty + m_handleSize) / 2 + 1, endx, endy - m_handleSize / 2);
//draw guides
gc.drawLine(0,endy,startx - m_handleSize / 2,endy);
gc.drawLine(startx,endy + m_handleSize / 2 + 1, startx, controller->kiscanvas()->height());
gc.drawLine(endx,0,endx,starty - m_handleSize / 2);
gc.drawLine(endx + m_handleSize / 2 + 1,starty, controller->kiscanvas()->width(), starty);
TQMemArray <TQRect> rects = m_handlesRegion.rects ();
for (TQMemArray <TQRect>::ConstIterator it = rects.begin (); it != rects.end (); ++it)
{
gc.fillRect (*it, TQt::black);
}
gc.setRasterOp(op);
gc.setPen(old);
}
}
void KisToolCrop::crop() {
// XXX: Should cropping be part of KisImage/KisPaintDevice's API?
m_haveCropSelection = false;
setCursor(m_cropCursor);
KisImageSP img = m_subject->currentImg();
if (!img)
return;
TQRect rc = realRectCrop().normalize();
// The visitor adds the undo steps to the macro
if (m_optWidget->cmbType->currentItem() == 0) {
TQRect dirty = img->bounds();
// The layer(s) under the current layer will take care of adding
// undo information to the Crop macro.
if (img->undo())
img->undoAdapter()->beginMacro(i18n("Crop"));
KisCropVisitor v(rc, false);
KisLayerSP layer = img->activeLayer();
layer->accept(v);
layer->setDirty( dirty );
if (img->undo())
img->undoAdapter()->endMacro();
}
else {
// Resize creates the undo macro itself
img->resize(rc, true);
}
m_rectCrop = TQRect(0,0,0,0);
updateWidgetValues();
}
void KisToolCrop::setCropX(int x)
{
if (!m_haveCropSelection) {
m_haveCropSelection = true;
}
else {
paintOutlineWithHandles(); // remove outlines
}
m_rectCrop.setX(x);
validateSelection();
paintOutlineWithHandles();
}
void KisToolCrop::setCropY(int y)
{
if (!m_haveCropSelection) {
m_haveCropSelection = true;
}
else {
paintOutlineWithHandles(); // remove outlines
}
m_rectCrop.setY(y);
validateSelection();
paintOutlineWithHandles();
}
void KisToolCrop::setCropWidth(int w)
{
if (!m_haveCropSelection) {
m_haveCropSelection = true;
}
else {
paintOutlineWithHandles(); // remove outlines
}
m_rectCrop.setWidth(w + 1);
if( m_optWidget->boolRatio->isChecked() )
{
m_rectCrop.setHeight( (int) ( w / m_optWidget->doubleRatio->value() ) );
} else {
setOptionWidgetRatio((double)m_rectCrop.width() / (double)m_rectCrop.height() );
}
validateSelection();
paintOutlineWithHandles();
}
void KisToolCrop::setCropHeight(int h)
{
if (!m_haveCropSelection) {
m_haveCropSelection = true;
}
else {
paintOutlineWithHandles(); // remove outlines
}
m_rectCrop.setHeight(h + 1);
if( m_optWidget->boolRatio->isChecked() )
{
m_rectCrop.setWidth( (int) ( h * m_optWidget->doubleRatio->value() ) );
} else {
setOptionWidgetRatio((double)m_rectCrop.width() / (double)m_rectCrop.height() );
}
validateSelection();
paintOutlineWithHandles();
}
void KisToolCrop::setRatio(double )
{
if( ! (m_optWidget->boolWidth->isChecked() && m_optWidget->boolHeight->isChecked() ))
{
if (!m_haveCropSelection) {
m_haveCropSelection = true;
}
else {
paintOutlineWithHandles(); // remove outlines
}
if( m_optWidget->boolWidth->isChecked() )
{
m_rectCrop.setHeight( (int) ( m_rectCrop.width() / m_optWidget->doubleRatio->value()) );
setOptionWidgetHeight( m_rectCrop.height() );
} else if(m_optWidget->boolHeight->isChecked()) {
m_rectCrop.setWidth( (int) (m_rectCrop.height() * m_optWidget->doubleRatio->value()) );
setOptionWidgetWidth( m_rectCrop.width() );
} else {
int newwidth = (int) (m_optWidget->doubleRatio->value() * m_rectCrop.height());
newwidth = (newwidth + m_rectCrop.width()) / 2;
m_rectCrop.setWidth( newwidth + 1);
setOptionWidgetWidth( newwidth );
m_rectCrop.setHeight( (int) (newwidth / m_optWidget->doubleRatio->value()) + 1 );
setOptionWidgetHeight( m_rectCrop.height() - 1 );
}
validateSelection(false);
paintOutlineWithHandles();
}
}
void KisToolCrop::setOptionWidgetX(TQ_INT32 x)
{
// Disable signals otherwise we get the valueChanged signal, which we don't want
// to go through the logic for setting values that way.
m_optWidget->intX->blockSignals(true);
m_optWidget->intX->setValue(x);
m_optWidget->intX->blockSignals(false);
}
void KisToolCrop::setOptionWidgetY(TQ_INT32 y)
{
m_optWidget->intY->blockSignals(true);
m_optWidget->intY->setValue(y);
m_optWidget->intY->blockSignals(false);
}
void KisToolCrop::setOptionWidgetWidth(TQ_INT32 x)
{
m_optWidget->intWidth->blockSignals(true);
m_optWidget->intWidth->setValue(x);
m_optWidget->intWidth->blockSignals(false);
}
void KisToolCrop::setOptionWidgetHeight(TQ_INT32 y)
{
m_optWidget->intHeight->blockSignals(true);
m_optWidget->intHeight->setValue(y);
m_optWidget->intHeight->blockSignals(false);
}
void KisToolCrop::setOptionWidgetRatio(double ratio)
{
m_optWidget->doubleRatio->blockSignals(true);
m_optWidget->doubleRatio->setValue(ratio);
m_optWidget->doubleRatio->blockSignals(false);
}
TQWidget* KisToolCrop::createOptionWidget(TQWidget* parent)
{
m_optWidget = new WdgToolCrop(parent);
TQ_CHECK_PTR(m_optWidget);
connect(m_optWidget->bnCrop, TQT_SIGNAL(clicked()), this, TQT_SLOT(crop()));
connect(m_optWidget->intX, TQT_SIGNAL(valueChanged(int)), this, TQT_SLOT(setCropX(int)));
connect(m_optWidget->intY, TQT_SIGNAL(valueChanged(int)), this, TQT_SLOT(setCropY(int)));
connect(m_optWidget->intWidth, TQT_SIGNAL(valueChanged(int)), this, TQT_SLOT(setCropWidth(int)));
connect(m_optWidget->intHeight, TQT_SIGNAL(valueChanged(int)), this, TQT_SLOT(setCropHeight(int)));
connect(m_optWidget->doubleRatio, TQT_SIGNAL(valueChanged(double)), this, TQT_SLOT(setRatio( double )));
return m_optWidget;
}
TQWidget* KisToolCrop::optionWidget()
{
return m_optWidget;
}
void KisToolCrop::setup(KActionCollection *collection)
{
m_action = static_cast<KRadioAction *>(collection->action(name()));
if (m_action == 0) {
m_action = new KRadioAction(i18n("&Crop"),
"tool_crop",
0,
this,
TQT_SLOT(activate()),
collection,
name());
TQ_CHECK_PTR(m_action);
m_action->setToolTip(i18n("Crop an area"));
m_action->setExclusiveGroup("tools");
m_ownAction = true;
}
}
TQRect toTQRect(double x, double y, int w, int h)
{
return TQRect(int(x), int(y), w, h);
}
TQRegion KisToolCrop::handles(TQRect rect)
{
TQRegion handlesRegion;
//add handle at the lower right corner
handlesRegion += toTQRect( TQABS( rect.width() ) - m_handleSize / 2.0, TQABS( rect.height() ) - m_handleSize / 2.0, m_handleSize, m_handleSize );
//add handle at the upper right corner
handlesRegion += toTQRect( TQABS( rect.width() ) - m_handleSize / 2.0 , 0 - m_handleSize / 2.0, m_handleSize, m_handleSize );
//add rectangle at the lower left corner
handlesRegion += toTQRect( 0 - m_handleSize / 2.0 , TQABS( rect.height() ) - m_handleSize / 2.0, m_handleSize, m_handleSize );
//add rectangle at the upper left corner
handlesRegion += toTQRect( 0 - m_handleSize / 2.0, 0 - m_handleSize / 2.0, m_handleSize, m_handleSize );
//add handle at the lower edge of the rectangle
handlesRegion += toTQRect( ( TQABS( rect.width() ) - m_handleSize ) / 2.0 , TQABS( rect.height() ) - m_handleSize / 2.0, m_handleSize, m_handleSize );
//add handle at the right edge of the rectangle
handlesRegion += toTQRect( TQABS( rect.width() ) - m_handleSize / 2.0 , ( TQABS( rect.height() ) - m_handleSize ) / 2.0, m_handleSize, m_handleSize );
//add handle at the upper edge of the rectangle
handlesRegion += toTQRect( ( TQABS( rect.width() ) - m_handleSize ) / 2.0 , 0 - m_handleSize / 2.0, m_handleSize, m_handleSize );
//add handle at the left edge of the rectangle
handlesRegion += toTQRect( 0 - m_handleSize / 2.0, ( TQABS( rect.height() ) - m_handleSize ) / 2.0, m_handleSize, m_handleSize );
//move the handles to the correct position
if( rect.width() >= 0 && rect.height() >= 0)
{
handlesRegion.translate ( rect.x(), rect.y() );
}
else if( rect.width() < 0 && rect.height() >= 0)
{
handlesRegion.translate ( rect.x() - TQABS( rect.width() ), rect.y() );
}
else if( rect.width() >= 0 && rect.height() < 0)
{
handlesRegion.translate ( rect.x(), rect.y() - TQABS( rect.height() ) );
}
else if( rect.width() < 0 && rect.height() < 0)
{
handlesRegion.translate ( rect.x() - TQABS( rect.width() ), rect.y() - TQABS( rect.height() ) );
}
return handlesRegion;
}
TQ_INT32 KisToolCrop::mouseOnHandle(TQPoint currentViewPoint)
{
KisCanvasController *controller = m_subject->canvasController();
Q_ASSERT(controller);
TQPoint start = controller->windowToView(m_rectCrop.topLeft());
TQPoint end = controller->windowToView(m_rectCrop.bottomRight());
TQ_INT32 startx;
TQ_INT32 starty;
TQ_INT32 endx;
TQ_INT32 endy;
if(start.x()<=end.x())
{
startx=start.x();
endx=end.x();
}
else
{
startx=end.x();
endx=start.x();
}
if(start.y()<=end.y())
{
starty=start.y();
endy=end.y();
}
else
{
starty=end.y();
endy=start.y();
}
if ( toTQRect ( startx - m_handleSize / 2.0, starty - m_handleSize / 2.0, m_handleSize, m_handleSize ).contains( currentViewPoint ) )
{
if( !m_selecting )
{
m_dx= startx-currentViewPoint.x();
m_dy = starty - currentViewPoint.y();
}
return UpperLeft;
}
else if ( toTQRect ( startx - m_handleSize / 2.0, endy - m_handleSize / 2.0, m_handleSize, m_handleSize ).contains( currentViewPoint ) )
{
if( !m_selecting )
{
m_dx = startx-currentViewPoint.x();
m_dy = endy-currentViewPoint.y();
}
return LowerLeft;
}
else if ( toTQRect ( endx - m_handleSize / 2.0, starty - m_handleSize / 2.0, m_handleSize, m_handleSize ).contains( currentViewPoint ) )
{
if( !m_selecting )
{
m_dx = endx - currentViewPoint.x();
m_dy = starty - currentViewPoint.y() ;
}
return UpperRight;
}
else if ( toTQRect ( endx - m_handleSize / 2.0, endy - m_handleSize / 2.0, m_handleSize, m_handleSize ).contains( currentViewPoint ) )
{
if( !m_selecting )
{
m_dx = endx - currentViewPoint.x();
m_dy= endy - currentViewPoint.y();
}
return LowerRight;
}
else if ( toTQRect ( startx + ( endx - startx - m_handleSize ) / 2.0, starty - m_handleSize / 2.0, m_handleSize, m_handleSize ).contains( currentViewPoint ) )
{
if( !m_selecting )
{
m_dy = starty - currentViewPoint.y() ;
}
return Upper;
}
else if ( toTQRect ( startx + ( endx - startx - m_handleSize ) / 2.0, endy - m_handleSize / 2, m_handleSize, m_handleSize ).contains( currentViewPoint ) )
{
if( !m_selecting )
{
m_dy = endy - currentViewPoint.y();
}
return Lower;
}
else if ( toTQRect ( startx - m_handleSize / 2.0, starty + ( endy - starty - m_handleSize ) / 2.0, m_handleSize, m_handleSize ).contains( currentViewPoint ) )
{
if( !m_selecting )
{
m_dx = startx - currentViewPoint.x() ;
}
return Left;
}
else if ( toTQRect ( endx - m_handleSize / 2.0 , starty + ( endy - starty - m_handleSize ) / 2.0, m_handleSize, m_handleSize ).contains( currentViewPoint ) )
{
if( !m_selecting )
{
m_dx = endx-currentViewPoint.x();
}
return Right;
}
else if ( toTQRect ( startx , starty, endx - startx , endy - starty ).contains( currentViewPoint ) )
{
return Inside;
}
else return None;
}
void KisToolCrop::setMoveResizeCursor (TQ_INT32 handle)
{
switch (handle)
{
case (UpperLeft):
case (LowerRight):
m_subject->canvasController()->setCanvasCursor(KisCursor::sizeFDiagCursor());
return;
case (LowerLeft):
case (UpperRight):
m_subject->canvasController()->setCanvasCursor(KisCursor::sizeBDiagCursor());
return;
case (Upper):
case (Lower):
m_subject->canvasController()->setCanvasCursor(KisCursor::sizeVerCursor());
return;
case (Left):
case (Right):
m_subject->canvasController()->setCanvasCursor(KisCursor::sizeHorCursor());
return;
case (Inside):
m_subject->canvasController()->setCanvasCursor(KisCursor::sizeAllCursor());
return;
}
m_subject->canvasController()->setCanvasCursor(KisCursor::arrowCursor());
return;
}
#include "kis_tool_crop.moc"