canvas/source/opengl/ogl_bitmapcanvashelper.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #pragma once
  11
  12 #include <com/sun/star/geometry/IntegerPoint2D.hpp>
  13 #include <com/sun/star/geometry/IntegerRectangle2D.hpp>
  14 #include <com/sun/star/rendering/IntegerBitmapLayout.hpp>
  15
  16 #include "ogl_canvashelper.hxx"
  17
  18 namespace oglcanvas
  19 {
  20     /** Helper class for basic canvas functionality. */
  21     class BitmapCanvasHelper : public CanvasHelper
  22     {
  23     public:
  24         BitmapCanvasHelper();
  25
  26         /// Release all references
  27         void disposing();
  28
  29         /** Initialize canvas helper
  30
  31             This method late-initializes the canvas helper, providing
  32             it with the necessary device and output objects. Note that
  33             the CanvasHelper does <em>not</em> take ownership of the
  34             passed rDevice reference, nor does it perform any
  35             reference counting. Thus, to prevent the reference counted
  36             SpriteCanvas object from deletion, the user of this class
  37             is responsible for holding ref-counted references itself!
  38
  39             @param rDevice
  40             Reference device this canvas is associated with
  41
  42          */
  43         void init( css::rendering::XGraphicDevice&     rDevice,
  44                    SpriteDeviceHelper&                              rDeviceHelper,
  45                    const css::geometry::IntegerSize2D& rSize );
  46
  47         // BitmapCanvasHelper functionality
  48         // ================================
  49
  50         const css::geometry::IntegerSize2D& getSize() const { return maSize; }
  51
  52         css::uno::Reference< css::rendering::XBitmap >
  53             getScaledBitmap( const css::geometry::RealSize2D&  newSize,
  54                              bool                                               beFast );
  55
  56         css::uno::Sequence< sal_Int8 >
  57             getData( css::rendering::IntegerBitmapLayout&      bitmapLayout,
  58                      const css::geometry::IntegerRectangle2D&  rect );
  59
  60         css::uno::Sequence< sal_Int8 >
  61             getPixel( css::rendering::IntegerBitmapLayout& bitmapLayout,
  62                       const css::geometry::IntegerPoint2D& pos );
  63
  64         css::rendering::IntegerBitmapLayout getMemoryLayout() const;
  65
  66     private:
  67         css::geometry::IntegerSize2D maSize;
  68     };
  69 }
  70
  71 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */