src/frameworkelement.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * frameworkelement.h
   4  *
   5  * Copyright 2007 Novell, Inc. (http://www.novell.com)
   6  *
   7  * See the LICENSE file included with the distribution for details.
   8  *
   9  */
  10
  11 #ifndef __MOON_FRAMEWORKELEMENT_H__
  12 #define __MOON_FRAMEWORKELEMENT_H__
  13
  14 #include <glib.h>
  15 #include <math.h>
  16
  17 #include "uielement.h"
  18
  19 /* @CBindingRequisite */
  20 typedef Size (*MeasureOverrideCallback)(Size availableSize);
  21 /* @CBindingRequisite */
  22 typedef Size (*ArrangeOverrideCallback)(Size finalSize);
  23
  24 /* @Namespace=System.Windows */
  25 /* @CallInitialize */
  26 class FrameworkElement : public UIElement {
  27 public:
  28         /* @PropertyType=double,DefaultValue=NAN,GenerateAccessors */
  29         const static int HeightProperty;
  30         /* @PropertyType=double,DefaultValue=NAN,GenerateAccessors */
  31         const static int WidthProperty;
  32
  33         /* @PropertyType=double,DefaultValue=0.0,Version=2,ManagedSetterAccess=Internal,GenerateAccessors,ReadOnly */
  34         const static int ActualHeightProperty;
  35         /* @PropertyType=double,DefaultValue=0.0,Version=2,ManagedSetterAccess=Internal,GenerateAccessors,ReadOnly */
  36         const static int ActualWidthProperty;
  37         /* @PropertyType=object,Version=2.0 */
  38         const static int DataContextProperty;
  39         /* @PropertyType=HorizontalAlignment,DefaultValue=HorizontalAlignmentStretch,Version=2.0,GenerateAccessors */
  40         const static int HorizontalAlignmentProperty;
  41         /* @PropertyType=string,DefaultValue=\"en-US\",Version=2.0,ManagedPropertyType=XmlLanguage,Validator=NonNullValidator,GenerateAccessors */
  42         const static int LanguageProperty;
  43         /* @PropertyType=Thickness,DefaultValue=Thickness (0),Version=2.0,GenerateAccessors */
  44         const static int MarginProperty;
  45         /* @PropertyType=double,DefaultValue=INFINITY,Version=2.0,GenerateAccessors */
  46         const static int MaxHeightProperty;
  47         /* @PropertyType=double,DefaultValue=INFINITY,Version=2.0,GenerateAccessors */
  48         const static int MaxWidthProperty;
  49         /* @PropertyType=double,DefaultValue=0.0,Version=2.0,GenerateAccessors */
  50         const static int MinHeightProperty;
  51         /* @PropertyType=double,DefaultValue=0.0,Version=2.0,GenerateAccessors */
  52         const static int MinWidthProperty;
  53         /* @PropertyType=VerticalAlignment,DefaultValue=VerticalAlignmentStretch,Version=2.0,GenerateAccessors */
  54         const static int VerticalAlignmentProperty;
  55         /* @PropertyType=Style,Version=2.0,GenerateAccessors,Validator=StyleValidator */
  56         const static int StyleProperty;
  57
  58         /* @GenerateCBinding,GeneratePInvoke,ManagedAccess=Protected */
  59         FrameworkElement ();
  60
  61         virtual void ComputeBounds ();
  62         virtual Rect GetSubtreeBounds ();
  63
  64         virtual void HitTest (cairo_t *cr, Point p, List *uielement_list);
  65         virtual void FindElementsInHostCoordinates (cairo_t *cr, Point P, List *uielement_list);
  66         virtual void FindElementsInHostCoordinates (cairo_t *cr, Rect r, List *uielement_list);
  67
  68         //virtual void OnSubPropertyChanged (DependencyProperty *prop, DependencyObject *obj, PropertyChangedEventArgs *subobj_args);
  69         virtual void OnPropertyChanged (PropertyChangedEventArgs *args, MoonError *error);
  70
  71         virtual bool InsideObject (cairo_t *cr, double x, double y);
  72         void RenderLayoutClip (cairo_t *cr);
  73
  74         virtual void GetSizeForBrush (cairo_t *cr, double *width, double *height);
  75         virtual Point GetTransformOrigin ();
  76
  77         /* @GenerateCBinding,GeneratePInvoke */
  78         void SetLogicalParent (DependencyObject *logical_parent, MoonError *error);
  79         /* @GenerateCBinding,GeneratePInvoke */
  80         DependencyObject *GetLogicalParent () { return logical_parent; }
  81
  82         //
  83         // Property Accessors
  84         //
  85         void SetHeight (double height);
  86         double GetHeight ();
  87
  88         void SetWidth (double width);
  89         double GetWidth ();
  90
  91         void SetLanguage (const char *value);
  92         const char *GetLanguage ();
  93
  94         //
  95         // 2.0 methods
  96         //
  97         // Layout
  98         virtual void Measure (Size availableSize);
  99         virtual void Arrange (Rect finalRect);
 100
 101         /* @GeneratePInvoke,GenerateCBinding */
 102         void RegisterManagedOverrides (MeasureOverrideCallback measure_cb, ArrangeOverrideCallback arrange_cb);
 103
 104         // These two methods call into managed land using the
 105         // delegates registered in RegisterManagedOverrides.  If
 106         // classes want to implement fully unmanaged layout, they
 107         // should override these two methods.
 108
 109         /* @GenerateCBinding,GeneratePInvoke */
 110         virtual Size MeasureOverride (Size availableSize);
 111         /* @GenerateCBinding,GeneratePInvoke */
 112         virtual Size ArrangeOverride (Size finalSize);
 113         virtual Size ComputeActualSize ();
 114
 115
 116         // Apply specific constraint values to the given size
 117         Size ApplySizeConstraints (const Size &size);
 118
 119         virtual void UpdateLayout ();
 120
 121         const static int LayoutUpdatedEvent;
 122         /* @DelegateType=SizeChangedEventHandler */
 123         const static int SizeChangedEvent;
 124         // XXX 2.0 also has the Loaded event moved here from
 125         // UIElement.
 126
 127         //
 128         // Property Accessors (2.0)
 129         //
 130
 131         void SetActualWidth (double width);
 132         double GetActualWidth ();
 133
 134         void SetActualHeight (double width);
 135         double GetActualHeight ();
 136
 137         Thickness *GetMargin ();
 138         void SetMargin (Thickness *value);
 139
 140         double GetMaxHeight ();
 141         void SetMaxHeight (double value);
 142
 143         double GetMinHeight ();
 144         void SetMinHeight (double value);
 145
 146         double GetMaxWidth ();
 147         void SetMaxWidth (double value);
 148
 149         double GetMinWidth ();
 150         void SetMinWidth (double value);
 151
 152         HorizontalAlignment GetHorizontalAlignment ();
 153         void SetHorizontalAlignment (HorizontalAlignment value);
 154
 155         Style *GetStyle ();
 156         void SetStyle (Style *value);
 157
 158         VerticalAlignment GetVerticalAlignment ();
 159         void SetVerticalAlignment (VerticalAlignment value);
 160
 161         /* @GenerateCBinding,GeneratePInvoke */
 162         void SetDefaultStyle (Style *value);
 163
 164         bool default_style_applied;
 165
 166 protected:
 167         Rect bounds_with_children;
 168         GHashTable *styles;
 169
 170         virtual void ElementAdded (UIElement *item);
 171
 172         virtual ~FrameworkElement ();
 173
 174 private:
 175         MeasureOverrideCallback measure_cb;
 176         ArrangeOverrideCallback arrange_cb;
 177
 178         DependencyObject  *logical_parent;
 179 };
 180
 181 class FrameworkElementProvider : public PropertyValueProvider {
 182         Value *actual_height_value;
 183         Value *actual_width_value;
 184         Size last;
 185
 186  public:
 187         FrameworkElementProvider (DependencyObject *obj, PropertyPrecedence precedence);
 188         virtual ~FrameworkElementProvider ();
 189         virtual Value *GetPropertyValue (DependencyProperty *property);
 190 };
 191
 192
 193 #endif /* __FRAMEWORKELEMENT_H__ */