src/apps/icon-o-matic/import_export/svg/SVGGradients.h

   1 /*
   2  * Copyright 2006-2007, Haiku. All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Stephan Aßmus <superstippi@gmx.de>
   7  */
   8 #ifndef SVG_GRADIENTS_H
   9 #define SVG_GRADIENTS_H
  10
  11
  12 #include <agg_color_rgba.h>
  13 #include <agg_trans_affine.h>
  14
  15 #include <Message.h>
  16 #include <String.h>
  17
  18 #include "IconBuild.h"
  19
  20
  21 _BEGIN_ICON_NAMESPACE
  22         class Gradient;
  23 _END_ICON_NAMESPACE
  24
  25 namespace agg {
  26 namespace svg {
  27
  28 class SVGGradient : public BMessage {
  29  public:
  30                                                         SVGGradient();
  31         virtual                                 ~SVGGradient();
  32
  33                         void                    SetID(const char* id);
  34                         const char*             ID() const;
  35
  36         virtual void                    AddStop(float offset, rgba8 color);
  37                         void                    SetTransformation(const trans_affine& transform);
  38
  39                         Gradient*               GetGradient(BRect objectBounds);
  40
  41  protected:
  42         virtual Gradient*               MakeGradient() const = 0;
  43                         void                    IdentifyGradientUnits();
  44
  45  private:
  46
  47         enum {
  48                 UNSPECIFIED = 0,
  49                 USER_SPACE_ON_USE,
  50                 OBJECT_BOUNDING_BOX,
  51         };
  52
  53                         Gradient*               fGradient;
  54                         BString                 fID;
  55                         uint32                  fGradientUnits;
  56 };
  57
  58 class SVGLinearGradient : public SVGGradient {
  59  public:
  60                                                         SVGLinearGradient();
  61         virtual                                 ~SVGLinearGradient();
  62
  63  protected:
  64         virtual Gradient*               MakeGradient() const;
  65
  66 };
  67
  68 class SVGRadialGradient : public SVGGradient {
  69  public:
  70                                                         SVGRadialGradient();
  71         virtual                                 ~SVGRadialGradient();
  72
  73  protected:
  74         virtual Gradient*               MakeGradient() const;
  75
  76 };
  77
  78 } // namespace svg
  79 } // namespace agg
  80
  81 #endif // SVG_GRADIENTS_H