File indexing completed on 2024-05-12 15:58:11

 /*
  *  SPDX-FileCopyrightText: 2014 Dmitry Kazakov <dimula73@gmail.com>
  *
  *  SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef __KIS_CACHED_PAINT_DEVICE_H
 #define __KIS_CACHED_PAINT_DEVICE_H
 
 #include "kis_lockless_stack.h"
 #include "kis_paint_device.h"
 #include "kis_selection.h"
 #include "KoColorSpace.h"
 #include "KoColor.h"
 
 class KisCachedPaintDevice
 {
 public:
     KisPaintDeviceSP getDevice(KisPaintDeviceSP prototype) {
         KisPaintDeviceSP device;
 
         if(!m_stack.pop(device)) {
             device = new KisPaintDevice(prototype->colorSpace());
         }
 
         device->prepareClone(prototype);
         return device;
     }
 
     KisPaintDeviceSP getDevice(KisPaintDeviceSP prototype, const KoColorSpace *colorSpace) {
         KisPaintDeviceSP device;
 
         if(!m_stack.pop(device)) {
             device = new KisPaintDevice(colorSpace);
         } else {
             device->convertTo(colorSpace);
         }
 
         device->setDefaultPixel(KoColor(colorSpace));
         device->setDefaultBounds(prototype->defaultBounds());
         device->setX(prototype->x());
         device->setY(prototype->y());
 
         return device;
     }
 
     void putDevice(KisPaintDeviceSP device) {
         device->clear();
         device->setDefaultBounds(new KisDefaultBounds());
         m_stack.push(device);
     }
 
     bool isEmpty() const {
         return m_stack.isEmpty();
     }
 
     struct Guard {
         Guard(KisPaintDeviceSP prototype, KisCachedPaintDevice &parent)
             : m_parent(parent)
         {
             m_device = m_parent.getDevice(prototype);
         }
 
         Guard(KisPaintDeviceSP prototype, const KoColorSpace *cs, KisCachedPaintDevice &parent)
             : m_parent(parent)
         {
             m_device = m_parent.getDevice(prototype, cs);
         }
 
         ~Guard() {
             m_parent.putDevice(m_device);
         }
 
         KisPaintDeviceSP device() const {
             return m_device;
         }
 
         private:
         KisCachedPaintDevice &m_parent;
         KisPaintDeviceSP m_device;
     };
 
 private:
     KisLocklessStack<KisPaintDeviceSP> m_stack;
 };
 
 class KisCachedSelection
 {
 public:
     KisSelectionSP getSelection() {
         KisSelectionSP selection;
 
         if(!m_stack.pop(selection)) {
             selection = new KisSelection(new KisSelectionEmptyBounds(0));
         }
 
         return selection;
     }
 
     void putSelection(KisSelectionSP selection) {
         selection->clear();
         selection->setDefaultBounds(new KisSelectionEmptyBounds(0));
         selection->pixelSelection()->moveTo(QPoint());
         m_stack.push(selection);
     }
 
     bool isEmpty() const {
         return m_stack.isEmpty();
     }
 
     struct Guard {
         Guard(KisCachedSelection &parent)
             : m_parent(parent)
         {
             m_selection = m_parent.getSelection();
         }
 
         ~Guard() {
             m_parent.putSelection(m_selection);
         }
 
         KisSelectionSP selection() const {
             return m_selection;
         }
 
         private:
         KisCachedSelection &m_parent;
         KisSelectionSP m_selection;
     };
 
 private:
     KisLocklessStack<KisSelectionSP> m_stack;
 };
 
 #endif /* __KIS_CACHED_PAINT_DEVICE_H */