src/multiscaleimage.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * multiscaleimage.h:
   4  *
   5  * Contact:
   6  *   Moonlight List (moonlight-list@lists.ximian.com)
   7  *
   8  * Copyright 2007-2009 Novell, Inc. (http://www.novell.com)
   9  *
  10  * See the LICENSE file included with the distribution for details.
  11  */
  12
  13 #ifndef __MULTISCALEIMAGE_H__
  14 #define __MULTISCALEIMAGE_H__
  15
  16 #include <glib.h>
  17 #include <cairo.h>
  18
  19 #include "multiscalesubimage.h"
  20 #include "tilesource.h"
  21 #include "eventargs.h"
  22 #include "control.h"
  23 #include "media.h"
  24 #include "animation.h"
  25 #include "ptr.h"
  26
  27 struct BitmapImageContext;
  28
  29 /* @Namespace=System.Windows.Controls */
  30 class MultiScaleImage : public MediaBase {
  31         friend class MultiScaleImagePropertyValueProvider;
  32
  33         GHashTable *cache;
  34         bool cache_contains (Uri* filename, bool check_empty_tile);
  35         bool subimages_sorted;
  36         bool pending_motion_completed;
  37
  38         cairo_user_data_key_t width_key;
  39         cairo_user_data_key_t height_key;
  40         cairo_user_data_key_t full_opacity_at_key;
  41
  42         static void downloader_complete (EventObject *sender, EventArgs *calldata, gpointer closure);
  43         static void downloader_failed (EventObject *sender, EventArgs *calldata, gpointer closure);
  44
  45         GList *bitmapimages;
  46         BitmapImageContext *GetBitmapImageContext (BitmapImage *bitmapimage);
  47
  48         void RenderSingle (cairo_t *cr, Region *region);
  49         void RenderCollection (cairo_t *cr, Region *region);
  50
  51         DOPtr<Storyboard> zoom_sb;
  52         DOPtr<Storyboard> pan_sb;
  53         DOPtr<Storyboard> fadein_sb;
  54         DOPtr<DoubleAnimationUsingKeyFrames> zoom_animation;
  55         DOPtr<PointAnimationUsingKeyFrames> pan_animation;
  56         DOPtr<DoubleAnimation> fadein_animation;
  57
  58         void SetIsDownloading (bool value);
  59         void SetIsIdle (bool value);
  60
  61         /* @PropertyType=double,DefaultValue=0.0,Version=2.0,GenerateManagedAccessors=false,ManagedFieldAccess=Private */
  62         const static int TileFadeProperty;
  63         /* @PropertyType=Point,DefaultValue=Point(0\,0),Version=2.0,GenerateGetter,GenerateManagedAccessors=false,ManagedFieldAccess=Private */
  64         const static int InternalViewportOriginProperty;
  65         /* @PropertyType=double,DefaultValue=1.0,Version=2.0,GenerateGetter,GenerateManagedAccessors=false,ManagedFieldAccess=Private */
  66         const static int InternalViewportWidthProperty;
  67
  68         Point* GetInternalViewportOrigin ();
  69         void SetInternalViewportOrigin (Point* p);
  70
  71         double GetInternalViewportWidth ();
  72         void SetInternalViewportWidth (double width);
  73
  74         double *GetZoomAnimationEndPoint ();
  75         void SetZoomAnimationEndPoint (double endpoint);
  76         Point *GetPanAnimationEndPoint ();
  77         void SetPanAnimationEndPoint (Point endpoint);
  78
  79         double zoom_target;
  80         Point pan_target;
  81
  82         bool is_fading;
  83         bool is_zooming;
  84         bool is_panning;
  85
  86  protected:
  87         virtual ~MultiScaleImage ();
  88
  89  public:
  90         void EmitImageOpenSucceeded ();
  91         /* @GenerateCBinding */
  92         void EmitMotionFinished ();
  93         /* @GenerateCBinding */
  94         void EmitImageFailed ();
  95         /* @GenerateCBinding */
  96         void EmitImageOpenFailed ();
  97         void FadeFinished ();
  98         void ZoomFinished ();
  99         void PanFinished ();
 100         void TileOpened (BitmapImage *bitmapImage);
 101         void TileFailed (BitmapImage *bitmapImage);
 102
 103         /* @PropertyType=bool,DefaultValue=true,Version=3.0,GenerateAccessors */
 104         const static int AllowDownloadingProperty;
 105         /* @PropertyType=double,ReadOnly,DefaultValue=1.0,Version=2.0,GenerateGetter */
 106         const static int AspectRatioProperty;
 107         /* @PropertyType=double,DefaultValue=1.0,Version=3.0,GenerateAccessors */
 108         const static int BlurFactorProperty;
 109         /* @PropertyType=bool,ReadOnly,DefaultValue=false,Version=3.0,GenerateGetter */
 110         const static int IsDownloadingProperty;
 111         /* @PropertyType=bool,ReadOnly,DefaultValue=true,Version=3.0,GenerateGetter */
 112         const static int IsIdleProperty;
 113         /* @PropertyType=MultiScaleTileSource,Version=2.0,GenerateAccessors */
 114         const static int SourceProperty;
 115         /* @PropertyType=MultiScaleSubImageCollection,AutoCreateValue,ReadOnly,Version=2.0,GenerateGetter,GenerateManagedAccessors=false */
 116         const static int SubImagesProperty;
 117         /* @PropertyType=bool,DefaultValue=true,Version=2.0,GenerateAccessors */
 118         const static int UseSpringsProperty;
 119         /* @PropertyType=Point,AlwaysChange,DefaultValue=Point(0\,0),Version=2.0,GenerateAccessors */
 120         const static int ViewportOriginProperty;
 121         /* @PropertyType=double,AlwaysChange,DefaultValue=1.0,Version=2.0,GenerateAccessors */
 122         const static int ViewportWidthProperty;
 123
 124
 125         /* @GenerateCBinding,GeneratePInvoke */
 126         MultiScaleImage ();
 127
 128         //
 129         // Overrides
 130         //
 131         virtual void Render (cairo_t *cr, Region *region, bool path_only = false);
 132         virtual void OnPropertyChanged (PropertyChangedEventArgs *args, MoonError *error);
 133         virtual void OnCollectionChanged (Collection *col, CollectionChangedEventArgs *args);
 134         virtual void OnCollectionItemChanged (Collection *col, DependencyObject *obj, PropertyChangedEventArgs *args);
 135
 136         //
 137         // Methods
 138         //
 139         /* @GenerateCBinding,GeneratePInvoke */
 140         void ZoomAboutLogicalPoint (double zoomIncrementFactor, double zoomCenterLogicalX, double zoomCenterLogicalY);
 141         /* @GenerateCBinding,GeneratePInvoke */
 142         Point ElementToLogicalPoint (Point elementPoint);
 143         /* @GenerateCBinding,GeneratePInvoke */
 144         Point LogicalToElementPoint (Point logicalPoint);
 145
 146         MultiScaleSubImage *GetIthSubImage (int index);
 147         // There is no documentation in MSDN for this method, it only shows up in a few tests.
 148         int LogicalToElementX (int x, int y);
 149         // There is no documentation in MSDN for this method, it only shows up in a few tests.
 150         int LogicalToElementY (int x, int y);
 151         // There is no documentation in MSDN for this method, it only shows up in a few tests.
 152         int GetSubImageCount ();
 153
 154         //
 155         // Property Accessors
 156         //
 157         double GetAspectRatio ();
 158
 159         bool GetAllowDownloading ();
 160         void SetAllowDownloading (bool value);
 161
 162         double GetBlurFactor ();
 163         void SetBlurFactor (double value);
 164
 165         bool GetIsIdle ();
 166
 167         bool GetIsDownloading ();
 168
 169         MultiScaleTileSource* GetSource ();
 170         void SetSource (MultiScaleTileSource* source);
 171
 172         bool GetUseSprings ();
 173         void SetUseSprings (bool spring);
 174
 175         Point* GetViewportOrigin ();
 176         void SetViewportOrigin (Point* p);
 177
 178         double GetViewportWidth ();
 179         void SetViewportWidth (double width);
 180
 181         MultiScaleSubImageCollection *GetSubImages ();
 182
 183         //
 184         // Events
 185         //
 186         /* @DelegateType=RoutedEventHandler */
 187         const static int ImageFailedEvent;
 188         /* @DelegateType=EventHandler<ExceptionRoutedEventArgs> */
 189         const static int ImageOpenFailedEvent;
 190         /* @DelegateType=RoutedEventHandler */
 191         const static int ImageOpenSucceededEvent;
 192         /* @DelegateType=RoutedEventHandler */
 193         const static int MotionFinishedEvent;
 194         /* @DelegateType=RoutedEventHandler */
 195         const static int ViewportChangedEvent;
 196
 197         BitmapImageContext *GetFreeBitmapImageContext ();
 198         void StopDownloading ();
 199         void DownloadTile (BitmapImageContext *ctx, Uri *tile, void *user_data);
 200         /* @GenerateCBinding */
 201         void HandleDzParsed ();
 202
 203         /* @GenerateCBinding */
 204         void OnSourcePropertyChanged ();
 205
 206         /* @GenerateCBinding */
 207         void InvalidateTileLayer (int level, int tilePositionX, int tilePositionY, int tileLayer);
 208 };
 209
 210 /*
 211  * MultiScaleImagePropertyValueProvider
 212  */
 213
 214 class MultiScaleImagePropertyValueProvider : public FrameworkElementProvider {
 215  private:
 216         Value *viewport_origin;
 217         Value *viewport_width;
 218
 219         Value *GetViewportOrigin ();
 220         Value *GetViewportWidth ();
 221
 222  public:
 223         MultiScaleImagePropertyValueProvider (MultiScaleImage *obj, PropertyPrecedence precedence);
 224         virtual ~MultiScaleImagePropertyValueProvider ();
 225         virtual Value *GetPropertyValue (DependencyProperty *property);
 226 };
 227
 228
 229 #endif /* __MULTISCALIMAGE_H__ */