1 files changed, 159 insertions, 0 deletions
diff --git a/krita/ui/kis_perspective_grid_manager.cpp b/krita/ui/kis_perspective_grid_manager.cpp
new file mode 100644
index 00000000..13c5cb13
--- /dev/null
+++ b/krita/ui/kis_perspective_grid_manager.cpp
@@ -0,0 +1,159 @@
+/*
+ * This file is part of Krita
+ *
+ *  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 "kis_perspective_grid_manager.h"
+
+#include <kaction.h>
+#include <klocale.h>
+#include <kmessagebox.h>
+
+#include "kis_image.h"
+#include "kis_grid_drawer.h"
+#include "kis_perspective_grid.h"
+#include "kis_view.h"
+
+KisPerspectiveGridManager::KisPerspectiveGridManager(KisView * parent)
+    : QObject()
+    , m_toggleEdition(false)
+    , m_view(parent)
+{
+    
+}
+
+
+KisPerspectiveGridManager::~KisPerspectiveGridManager()
+{
+    
+}
+
+void KisPerspectiveGridManager::updateGUI()
+{
+    KisImageSP image = m_view->canvasSubject()->currentImg();
+
+    
+    if (image ) {
+        KisPerspectiveGrid* pGrid = image->perspectiveGrid();
+        m_toggleGrid->setEnabled( pGrid->hasSubGrids());
+    }
+}
+
+void KisPerspectiveGridManager::setup(KActionCollection * collection)
+{
+    kdDebug() << "KisPerspectiveGridManager::setup(KActionCollection * collection)" << endl;
+    m_toggleGrid = new KToggleAction(i18n("Show Perspective Grid"), "", this, SLOT(toggleGrid()), collection, "view_toggle_perspective_grid");
+    m_toggleGrid->setCheckedState(KGuiItem(i18n("Hide Perspective Grid")));
+    m_toggleGrid->setChecked(false);
+    m_gridClear = new KAction(i18n("Clear Perspective Grid"), 0, "", this, SLOT(clearPerspectiveGrid()), collection, "view_clear_perspective_grid");
+}
+
+void KisPerspectiveGridManager::setGridVisible(bool t)
+{
+    KisImageSP image = m_view->canvasSubject()->currentImg();
+
+    
+    if (t && image ) {
+        KisPerspectiveGrid* pGrid = image->perspectiveGrid();
+        if( pGrid->hasSubGrids())
+        {
+            m_toggleGrid->setChecked(true);
+        }
+    } else {
+        m_toggleGrid->setChecked(false);
+    }
+    m_view->refreshKisCanvas();
+}
+
+
+void KisPerspectiveGridManager::toggleGrid()
+{
+    KisImageSP image = m_view->canvasSubject()->currentImg();
+
+    
+    if (image && m_toggleGrid->isChecked()) {
+        KisPerspectiveGrid* pGrid = image->perspectiveGrid();
+
+        if(!pGrid->hasSubGrids())
+        {
+            KMessageBox::error(0, i18n("Before displaying the perspective grid, you need to initialize it with the perspective grid tool"), i18n("No Perspective Grid to Display") );
+            m_toggleGrid->setChecked(false);
+        }
+    }
+    m_view->updateCanvas();
+}
+
+void KisPerspectiveGridManager::clearPerspectiveGrid()
+{
+    KisImageSP image = m_view->canvasSubject()->currentImg();
+    if (image ) {
+        image->perspectiveGrid()->clearSubGrids();
+        m_view->updateCanvas();
+        m_toggleGrid->setChecked(false);
+        m_toggleGrid->setEnabled(false);
+    }
+}
+
+void KisPerspectiveGridManager::startEdition()
+{
+    m_toggleEdition = true;
+    m_toggleGrid->setEnabled( false );
+    if( m_toggleGrid->isChecked() )
+        m_view->updateCanvas();
+}
+
+void KisPerspectiveGridManager::stopEdition()
+{
+    m_toggleEdition = false;
+    m_toggleGrid->setEnabled( true );
+    if( m_toggleGrid->isChecked() )
+        m_view->updateCanvas();
+}
+
+void KisPerspectiveGridManager::drawGrid(QRect wr, QPainter *p, bool openGL )
+{
+    KisImageSP image = m_view->canvasSubject()->currentImg();
+
+    
+    if (image && m_toggleGrid->isChecked() && !m_toggleEdition) {
+        KisPerspectiveGrid* pGrid = image->perspectiveGrid();
+
+        GridDrawer *gridDrawer = 0;
+
+        if (openGL) {
+            gridDrawer = new OpenGLGridDrawer();
+        } else {
+            Q_ASSERT(p);
+
+            if (p) {
+                gridDrawer = new QPainterGridDrawer(p);
+            }
+        }
+
+        Q_ASSERT(gridDrawer != 0);
+
+        for( QValueList<KisSubPerspectiveGrid*>::const_iterator it = pGrid->begin(); it != pGrid->end(); ++it)
+        {
+            gridDrawer->drawPerspectiveGrid(image, wr, *it );
+        }
+        delete gridDrawer;
+    }
+}
+
+
+#include "kis_perspective_grid_manager.moc"