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500 lines
17 KiB
500 lines
17 KiB
/*
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* kis_tool_perspectivegrid.cc - part of Chalk
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*
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* Copyright (c) 2006 Cyrille Berger <cberger@cberger.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <kis_tool_perspectivegrid.h>
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#include <tqapplication.h>
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#include <tqpainter.h>
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#include <tqregion.h>
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#include <tqwidget.h>
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#include <tqlayout.h>
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#include <kaction.h>
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#include <kdebug.h>
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#include <kcommand.h>
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#include <klocale.h>
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#include <kis_button_press_event.h>
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#include <kis_button_release_event.h>
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#include <kis_canvas_controller.h>
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#include <kis_canvas_painter.h>
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#include <kis_canvas_subject.h>
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#include <kis_cursor.h>
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#include <kis_image.h>
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#include <kis_move_event.h>
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#include <kis_perspective_grid_manager.h>
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#include <kis_selected_transaction.h>
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#include <kis_painter.h>
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#include <kis_paintop_registry.h>
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#include <kis_vec.h>
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#include <kis_canvas.h>
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KisToolPerspectiveGrid::KisToolPerspectiveGrid()
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: super(i18n("Perspective Grid")), m_handleSize(13), m_handleHalfSize(6)
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{
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setName("tool_perspectivegrid");
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m_subject = 0;
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m_dragging = false;
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}
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KisToolPerspectiveGrid::~KisToolPerspectiveGrid()
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{
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}
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void KisToolPerspectiveGrid::activate()
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{
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m_subject->perspectiveGridManager()->startEdition();
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if( ! m_subject->currentImg()->perspectiveGrid()->hasSubGrids() )
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{
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m_mode = MODE_CREATION;
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m_points.clear();
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} else {
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m_mode = MODE_EDITING;
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drawGrid();
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}
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super::activate();
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}
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void KisToolPerspectiveGrid::deactivate()
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{
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m_subject->perspectiveGridManager()->stopEdition();
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m_subject->perspectiveGridManager()->setGridVisible( true);
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if( m_mode == MODE_CREATION )
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{
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drawGridCreation();
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m_points.clear();
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m_dragging = false;
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} else {
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drawGrid();
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}
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}
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void KisToolPerspectiveGrid::update (KisCanvasSubject *subject)
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{
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m_subject = subject;
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super::update(m_subject);
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}
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bool KisToolPerspectiveGrid::mouseNear(const TQPoint& mousep, const TQPoint point)
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{
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return (TQRect( (point.x() - m_handleHalfSize), (point.y() - m_handleHalfSize), m_handleSize, m_handleSize).contains(mousep) );
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}
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void KisToolPerspectiveGrid::buttonPress(KisButtonPressEvent *event)
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{
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KisPerspectiveGrid* pGrid = m_subject->currentImg()->perspectiveGrid();
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if(!pGrid->hasSubGrids() && m_mode != MODE_CREATION)
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{ // it's possible that the perspectiv grid was cleared
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m_mode = MODE_CREATION;
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m_points.clear();
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}
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if( m_mode == MODE_CREATION && event->button() == Qt::LeftButton)
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{
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m_dragging = true;
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if (m_points.isEmpty())
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{
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m_dragStart = event->pos();
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m_dragEnd = event->pos();
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m_points.append(m_dragStart);
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} else {
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m_dragStart = m_dragEnd;
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m_dragEnd = event->pos();
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drawGridCreation();
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}
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} else if(m_mode == MODE_EDITING && event->button() == Qt::LeftButton){
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// Look for the handle which was pressed
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if (!m_subject)
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return;
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KisCanvasController *controller = m_subject->canvasController();
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Q_ASSERT(controller);
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TQPoint mousep = controller->windowToView( event->pos().roundTQPoint() );
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for( TQValueList<KisSubPerspectiveGrid*>::const_iterator it = pGrid->begin(); it != pGrid->end(); ++it)
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{
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KisSubPerspectiveGrid* grid = *it;
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if( mouseNear( mousep, controller->windowToView(grid->topLeft()->roundTQPoint() ) ) )
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{
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kdDebug() << " PRESS TOPLEFT HANDLE " << endl;
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m_mode = MODE_DRAGING_NODE;
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m_selectedNode1 = grid->topLeft();
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break;
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}
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else if( mouseNear( mousep, controller->windowToView(grid->topRight()->roundTQPoint() ) ) )
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{
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kdDebug() << " PRESS TOPRIGHT HANDLE " << endl;
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m_mode = MODE_DRAGING_NODE;
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m_selectedNode1 = grid->topRight();
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break;
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}
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else if( mouseNear( mousep, controller->windowToView(grid->bottomLeft()->roundTQPoint() ) ) )
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{
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kdDebug() << " PRESS BOTTOMLEFT HANDLE " << endl;
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m_mode = MODE_DRAGING_NODE;
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m_selectedNode1 = grid->bottomLeft();
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break;
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}
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else if( mouseNear( mousep, controller->windowToView(grid->bottomRight()->roundTQPoint() ) ) )
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{
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kdDebug() << " PRESS BOTTOMRIGHT HANDLE " << endl;
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m_mode = MODE_DRAGING_NODE;
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m_selectedNode1 = grid->bottomRight();
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break;
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}
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else if( !grid->leftGrid() && mouseNear( mousep, controller->windowToView( ((*grid->topLeft() + *grid->bottomLeft() )*0.5) ).roundTQPoint() ) )
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{
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kdDebug() << " PRESS LEFT HANDLE " << endl;
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m_mode = MODE_DRAGING_TRANSLATING_TWONODES;
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drawGrid();
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m_selectedNode1 = new KisPerspectiveGridNode( *grid->topLeft() );
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m_selectedNode2 = new KisPerspectiveGridNode( *grid->bottomLeft() );
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KisSubPerspectiveGrid* newsubgrid = new KisSubPerspectiveGrid( m_selectedNode1, grid->topLeft() , grid->bottomLeft(), m_selectedNode2);
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m_dragEnd = event->pos();
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newsubgrid->setRightGrid( grid);
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grid->setLeftGrid( newsubgrid);
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pGrid->addNewSubGrid( newsubgrid);
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drawGrid();
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break;
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}
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else if( !grid->rightGrid() && mouseNear( mousep, controller->windowToView( ((*grid->topRight() + *grid->bottomRight() )*0.5) ).roundTQPoint() ) )
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{
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kdDebug() << " PRESS RIGHT HANDLE " << endl;
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m_mode = MODE_DRAGING_TRANSLATING_TWONODES;
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drawGrid();
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m_selectedNode1 = new KisPerspectiveGridNode( *grid->topRight() );
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m_selectedNode2 = new KisPerspectiveGridNode( *grid->bottomRight() );
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KisSubPerspectiveGrid* newsubgrid = new KisSubPerspectiveGrid( grid->topRight(), m_selectedNode1, m_selectedNode2, grid->bottomRight());
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m_dragEnd = event->pos();
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newsubgrid->setLeftGrid( grid);
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grid->setRightGrid( newsubgrid);
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pGrid->addNewSubGrid( newsubgrid);
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drawGrid();
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break;
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}
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else if( !grid->topGrid() && mouseNear( mousep, controller->windowToView( ((*grid->topLeft() + *grid->topRight() )*0.5) ).roundTQPoint() ) )
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{
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kdDebug() << " PRESS TOP HANDLE " << endl;
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m_mode = MODE_DRAGING_TRANSLATING_TWONODES;
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drawGrid();
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m_selectedNode1 = new KisPerspectiveGridNode( *grid->topLeft() );
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m_selectedNode2 = new KisPerspectiveGridNode( *grid->topRight() );
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KisSubPerspectiveGrid* newsubgrid = new KisSubPerspectiveGrid( m_selectedNode1, m_selectedNode2, grid->topRight(), grid->topLeft() );
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m_dragEnd = event->pos();
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newsubgrid->setBottomGrid( grid);
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grid->setTopGrid( newsubgrid);
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pGrid->addNewSubGrid( newsubgrid);
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drawGrid();
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break;
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}
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else if( !grid->bottomGrid() && mouseNear( mousep, controller->windowToView( ((*grid->bottomLeft() + *grid->bottomRight() )*0.5) ).roundTQPoint() ) )
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{
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kdDebug() << " PRESS BOTTOM HANDLE " << endl;
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m_mode = MODE_DRAGING_TRANSLATING_TWONODES;
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drawGrid();
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m_selectedNode1 = new KisPerspectiveGridNode( *grid->bottomLeft() );
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m_selectedNode2 = new KisPerspectiveGridNode( *grid->bottomRight() );
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KisSubPerspectiveGrid* newsubgrid = new KisSubPerspectiveGrid( grid->bottomLeft(), grid->bottomRight(), m_selectedNode2, m_selectedNode1);
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m_dragEnd = event->pos();
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newsubgrid->setTopGrid( grid);
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grid->setBottomGrid( newsubgrid);
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pGrid->addNewSubGrid( newsubgrid);
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drawGrid();
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break;
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}
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}
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}
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}
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void KisToolPerspectiveGrid::move(KisMoveEvent *event)
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{
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if( m_mode == MODE_CREATION )
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{
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if (m_dragging) {
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// erase old lines on canvas
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drawGridCreation();
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// get current mouse position
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m_dragEnd = event->pos();
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// draw new lines on canvas
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drawGridCreation();
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}
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} else {
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if( m_mode == MODE_DRAGING_NODE)
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{
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drawGrid();
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m_selectedNode1->setX( event->pos().x() );
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m_selectedNode1->setY( event->pos().y() );
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drawGrid();
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}
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if( m_mode == MODE_DRAGING_TRANSLATING_TWONODES)
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{
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drawGrid();
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KisPoint translate = event->pos() - m_dragEnd;
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m_dragEnd = event->pos();
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*m_selectedNode1 += translate;;
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*m_selectedNode2 += translate;;
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drawGrid();
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}
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}
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}
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void KisToolPerspectiveGrid::buttonRelease(KisButtonReleaseEvent *event)
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{
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if (!m_subject)
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return;
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if( m_mode == MODE_CREATION )
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{
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if (m_dragging && event->button() == Qt::LeftButton) {
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m_dragging = false;
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m_points.append (m_dragEnd);
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if( m_points.size() == 4)
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{ // wow we have a grid, isn't that cool ?
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drawGridCreation(); // Clean
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m_subject->currentImg()->perspectiveGrid()->addNewSubGrid( new KisSubPerspectiveGrid( new KisPerspectiveGridNode(m_points[0]), new KisPerspectiveGridNode(m_points[1]), new KisPerspectiveGridNode(m_points[2]), new KisPerspectiveGridNode(m_points[3]) ) );
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drawGrid();
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m_mode = MODE_EDITING;
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}
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}
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} else {
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m_mode = MODE_EDITING;
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m_selectedNode1 = 0;
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m_selectedNode2 = 0;
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}
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/* if (m_dragging && event->button() == RightButton) {
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}*/
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}
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void KisToolPerspectiveGrid::paint(KisCanvasPainter& gc)
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{
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if( m_mode == MODE_CREATION )
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{
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drawGridCreation(gc);
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} else {
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drawGrid(gc);
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}
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}
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void KisToolPerspectiveGrid::paint(KisCanvasPainter& gc, const TQRect&)
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{
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if( m_mode == MODE_CREATION )
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{
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drawGridCreation(gc);
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} else {
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drawGrid(gc);
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}
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}
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void KisToolPerspectiveGrid::drawGridCreation()
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{
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if (m_subject) {
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KisCanvasController *controller = m_subject->canvasController();
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KisCanvas *canvas = controller->kiscanvas();
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KisCanvasPainter gc(canvas);
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drawGridCreation(gc);
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}
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}
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void KisToolPerspectiveGrid::drawGridCreation(KisCanvasPainter& gc)
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{
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if (!m_subject)
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return;
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TQPen pen(TQt::white);
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gc.setPen(pen);
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gc.setRasterOp(TQt::XorROP);
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KisCanvasController *controller = m_subject->canvasController();
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KisPoint start, end;
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TQPoint startPos;
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TQPoint endPos;
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if (m_dragging) {
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startPos = controller->windowToView(m_dragStart.floorTQPoint());
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endPos = controller->windowToView(m_dragEnd.floorTQPoint());
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gc.drawLine(startPos, endPos);
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} else {
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for (KisPointVector::iterator it = m_points.begin(); it != m_points.end(); ++it) {
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if (it == m_points.begin())
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{
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start = (*it);
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} else {
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end = (*it);
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startPos = controller->windowToView(start.floorTQPoint());
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endPos = controller->windowToView(end.floorTQPoint());
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gc.drawLine(startPos, endPos);
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start = end;
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}
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}
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}
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}
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void KisToolPerspectiveGrid::drawSmallRectangle(KisCanvasPainter& gc, TQPoint p)
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{
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gc.drawRect( p.x() - m_handleHalfSize - 1, p.y() - m_handleHalfSize - 1, m_handleSize, m_handleSize);
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}
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void KisToolPerspectiveGrid::drawGrid(KisCanvasPainter& gc)
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{
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if (!m_subject)
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return;
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KisCanvasController *controller = m_subject->canvasController();
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TQPen pen(TQt::white);
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TQPoint startPos;
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TQPoint endPos;
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gc.setPen(pen);
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gc.setRasterOp(TQt::XorROP);
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KisPerspectiveGrid* pGrid = m_subject->currentImg()->perspectiveGrid();
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for( TQValueList<KisSubPerspectiveGrid*>::const_iterator it = pGrid->begin(); it != pGrid->end(); ++it)
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{
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KisSubPerspectiveGrid* grid = *it;
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int index = grid->index();
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bool drawLeft = !(grid->leftGrid() && (index > grid->leftGrid()->index() ) );
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bool drawRight = !(grid->rightGrid() && (index > grid->rightGrid()->index() ) );
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bool drawTop = !(grid->topGrid() && (index > grid->topGrid()->index() ) );
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bool drawBottom = !(grid->bottomGrid() && (index > grid->bottomGrid()->index() ) );
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if(drawTop) {
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startPos = controller->windowToView(grid->topLeft()->roundTQPoint());
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endPos = controller->windowToView(grid->topRight()->roundTQPoint());
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gc.drawLine( startPos, endPos );
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if( !grid->topGrid() )
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{
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drawSmallRectangle(gc, (endPos + startPos) / 2);
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}
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if(drawLeft) {
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drawSmallRectangle(gc, startPos);
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}
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if(drawRight) {
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drawSmallRectangle(gc, endPos);
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}
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}
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if(drawRight) {
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startPos = controller->windowToView(grid->topRight()->roundTQPoint());
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endPos = controller->windowToView(grid->bottomRight()->roundTQPoint());
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gc.drawLine( startPos, endPos );
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if( !grid->rightGrid() )
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{
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drawSmallRectangle(gc, (endPos + startPos) / 2);
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}
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}
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if(drawBottom) {
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startPos = controller->windowToView(grid->bottomRight()->roundTQPoint());
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endPos = controller->windowToView(grid->bottomLeft()->roundTQPoint());
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gc.drawLine( startPos, endPos );
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if( !grid->bottomGrid() )
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{
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drawSmallRectangle(gc, (endPos + startPos) / 2);
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}
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if(drawLeft) {
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drawSmallRectangle(gc, endPos);
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}
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if(drawRight) {
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drawSmallRectangle(gc, startPos);
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}
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}
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if(drawLeft) {
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startPos = controller->windowToView(grid->bottomLeft()->roundTQPoint());
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endPos = controller->windowToView(grid->topLeft()->roundTQPoint());
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gc.drawLine( startPos, endPos );
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if( !grid->leftGrid() )
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{
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drawSmallRectangle(gc, (endPos + startPos) / 2);
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}
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}
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KisPoint tbVpf = grid->topBottomVanishingPoint();
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if( fabs(tbVpf.x()) < 30000000. && fabs(tbVpf.y()) < 30000000.)
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{
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TQPoint tbVp = controller->windowToView(tbVpf.roundTQPoint());
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gc.drawLine( tbVp.x() - m_handleHalfSize, tbVp.y() - m_handleHalfSize, tbVp.x() + m_handleHalfSize, tbVp.y() + m_handleHalfSize);
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gc.drawLine( tbVp.x() - m_handleHalfSize, tbVp.y() + m_handleHalfSize, tbVp.x() + m_handleHalfSize, tbVp.y() - m_handleHalfSize);
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}
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KisPoint lrVpf = grid->leftRightVanishingPoint();
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if( fabs(lrVpf.x()) < 30000000. && fabs(lrVpf.y()) < 30000000.)
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{ // Don't display it, if it is too far, or you get funny results
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TQPoint lrVp = controller->windowToView(lrVpf.roundTQPoint());
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gc.drawLine( lrVp.x() - m_handleHalfSize, lrVp.y() - m_handleHalfSize, lrVp.x() + m_handleHalfSize, lrVp.y() + m_handleHalfSize);
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gc.drawLine( lrVp.x() - m_handleHalfSize, lrVp.y() + m_handleHalfSize, lrVp.x() + m_handleHalfSize, lrVp.y() - m_handleHalfSize);
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}
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}
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}
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void KisToolPerspectiveGrid::drawGrid()
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{
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if (m_subject) {
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KisCanvasController *controller = m_subject->canvasController();
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KisCanvas *canvas = controller->kiscanvas();
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KisCanvasPainter gc(canvas);
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drawGrid(gc);
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}
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}
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void KisToolPerspectiveGrid::setup(KActionCollection *collection)
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{
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m_action = static_cast<KRadioAction *>(collection->action(name()));
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if (m_action == 0) {
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m_action = new KRadioAction(i18n("&Perspective Grid"),
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"tool_perspectivegrid" ,
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0,
|
|
this,
|
|
TQT_SLOT(activate()),
|
|
collection,
|
|
name());
|
|
Q_CHECK_PTR(m_action);
|
|
m_action->setExclusiveGroup("tools");
|
|
m_action->setToolTip(i18n("Edit the perspective grid"));
|
|
m_ownAction = true;
|
|
}
|
|
}
|
|
|
|
|
|
// TQWidget* KisToolPerspectiveGrid::createOptionWidget(TQWidget* tqparent)
|
|
// {
|
|
// return 0;
|
|
// }
|
|
//
|
|
// TQWidget* KisToolPerspectiveGrid::optionWidget()
|
|
// {
|
|
// return 0;
|
|
// }
|
|
|
|
|
|
#include "kis_tool_perspectivegrid.moc"
|