pixbuf-draw.c

linux下电话本所依赖的一些图形库

      if (draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			     box_x, box_y, box_width, box_height))
	{
	  /* The theme included stepper images, we're done */
	  return;
	}

      /* Otherwise, draw the full box, and fall through to draw the arrow
       */
      match_data.function = TOKEN_D_BOX;
      match_data.detail = (gchar *)detail;
      match_data.flags = THEME_MATCH_SHADOW | THEME_MATCH_STATE;
      match_data.shadow = shadow;
      match_data.state = state;
      
      if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			      box_x, box_y, box_width, box_height))
	parent_class->draw_box (style, window, state, shadow, area, widget, detail,
				box_x, box_y, box_width, box_height);
    }


  match_data.function = TOKEN_D_ARROW;
  match_data.detail = (gchar *)detail;
  match_data.flags = (THEME_MATCH_SHADOW | 
		      THEME_MATCH_STATE | 
		      THEME_MATCH_ARROW_DIRECTION);
  match_data.shadow = shadow;
  match_data.state = state;
  match_data.arrow_direction = arrow_direction;
  
  if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			  x, y, width, height))
    parent_class->draw_arrow (style, window, state, shadow, area, widget, detail,
			      arrow_direction, fill, x, y, width, height);
}

static void
draw_diamond (GtkStyle     *style,
	      GdkWindow    *window,
	      GtkStateType  state,
	      GtkShadowType shadow,
	      GdkRectangle *area,
	      GtkWidget    *widget,
	      const gchar  *detail,
	      gint          x,
	      gint          y,
	      gint          width,
	      gint          height)
{
  ThemeMatchData match_data;
  
  g_return_if_fail(style != NULL);
  g_return_if_fail(window != NULL);

  match_data.function = TOKEN_D_DIAMOND;
  match_data.detail = (gchar *)detail;
  match_data.flags = THEME_MATCH_SHADOW | THEME_MATCH_STATE;
  match_data.shadow = shadow;
  match_data.state = state;
  
  if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			  x, y, width, height))
    parent_class->draw_diamond (style, window, state, shadow, area, widget, detail,
				x, y, width, height);
}

static void
draw_string (GtkStyle * style,
	     GdkWindow * window,
	     GtkStateType state,
	     GdkRectangle * area,
	     GtkWidget * widget,
	     const gchar *detail,
	     gint x,
	     gint y,
	     const gchar * string)
{
  g_return_if_fail(style != NULL);
  g_return_if_fail(window != NULL);

  if (state == GTK_STATE_INSENSITIVE)
    {
      if (area)
	{
	  gdk_gc_set_clip_rectangle(style->white_gc, area);
	  gdk_gc_set_clip_rectangle(style->fg_gc[state], area);
	}

      gdk_draw_string(window, gtk_style_get_font (style), style->fg_gc[state], x, y, string);
      
      if (area)
	{
	  gdk_gc_set_clip_rectangle(style->white_gc, NULL);
	  gdk_gc_set_clip_rectangle(style->fg_gc[state], NULL);
	}
    }
  else
    {
      gdk_gc_set_clip_rectangle(style->fg_gc[state], area);
      gdk_draw_string(window, gtk_style_get_font (style), style->fg_gc[state], x, y, string);
      gdk_gc_set_clip_rectangle(style->fg_gc[state], NULL);
    }
}

static void
draw_box (GtkStyle     *style,
	  GdkWindow    *window,
 	  GtkStateType  state,
 	  GtkShadowType shadow,
 	  GdkRectangle *area,
 	  GtkWidget    *widget,
	  const gchar  *detail,
	  gint          x,
	  gint          y,
	  gint          width,
	  gint          height)
{
  ThemeMatchData match_data;

  g_return_if_fail(style != NULL);
  g_return_if_fail(window != NULL);

  if (detail &&
      (strcmp (detail, "hscrollbar") == 0 || strcmp (detail, "vscrollbar") == 0))
    {
      /* We handle this in draw_arrow */
      return;
    }

  match_data.function = TOKEN_D_BOX;
  match_data.detail = (gchar *)detail;
  match_data.flags = THEME_MATCH_SHADOW | THEME_MATCH_STATE;
  match_data.shadow = shadow;
  match_data.state = state;

  if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			  x, y, width, height)) {
    parent_class->draw_box (style, window, state, shadow, area, widget, detail,
			    x, y, width, height);
  }
}

static void
draw_flat_box (GtkStyle     *style,
	       GdkWindow    *window,
	       GtkStateType  state,
	       GtkShadowType shadow,
	       GdkRectangle *area,
	       GtkWidget    *widget,
	       const gchar  *detail,
	       gint          x,
	       gint          y,
	       gint          width,
	       gint          height)
{
  ThemeMatchData match_data;
  
  g_return_if_fail(style != NULL);
  g_return_if_fail(window != NULL);

  match_data.function = TOKEN_D_FLAT_BOX;
  match_data.detail = (gchar *)detail;
  match_data.flags = THEME_MATCH_SHADOW | THEME_MATCH_STATE;
  match_data.shadow = shadow;
  match_data.state = state;

  if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			  x, y, width, height))
    parent_class->draw_flat_box (style, window, state, shadow, area, widget, detail,
				 x, y, width, height);
}

static void
draw_check (GtkStyle     *style,
	    GdkWindow    *window,
	    GtkStateType  state,
	    GtkShadowType shadow,
	    GdkRectangle *area,
	    GtkWidget    *widget,
	    const gchar  *detail,
	    gint          x,
	    gint          y,
	    gint          width,
	    gint          height)
{
  ThemeMatchData match_data;
  
  g_return_if_fail(style != NULL);
  g_return_if_fail(window != NULL);

  match_data.function = TOKEN_D_CHECK;
  match_data.detail = (gchar *)detail;
  match_data.flags = THEME_MATCH_SHADOW | THEME_MATCH_STATE;
  match_data.shadow = shadow;
  match_data.state = state;
  
  if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			  x, y, width, height))
    parent_class->draw_check (style, window, state, shadow, area, widget, detail,
			      x, y, width, height);
}

static void
draw_option (GtkStyle      *style,
	     GdkWindow     *window,
	     GtkStateType  state,
	     GtkShadowType shadow,
	     GdkRectangle *area,
	     GtkWidget    *widget,
	     const gchar  *detail,
	     gint          x,
	     gint          y,
	     gint          width,
	     gint          height)
{
  ThemeMatchData match_data;
  
  g_return_if_fail(style != NULL);
  g_return_if_fail(window != NULL);

  match_data.function = TOKEN_D_OPTION;
  match_data.detail = (gchar *)detail;
  match_data.flags = THEME_MATCH_SHADOW | THEME_MATCH_STATE;
  match_data.shadow = shadow;
  match_data.state = state;
  
  if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			  x, y, width, height))
    parent_class->draw_option (style, window, state, shadow, area, widget, detail,
			       x, y, width, height);
}

static void
draw_tab (GtkStyle     *style,
	  GdkWindow    *window,
	  GtkStateType  state,
	  GtkShadowType shadow,
	  GdkRectangle *area,
	  GtkWidget    *widget,
	  const gchar  *detail,
	  gint          x,
	  gint          y,
	  gint          width,
	  gint          height)
{
  ThemeMatchData match_data;
  
  g_return_if_fail(style != NULL);
  g_return_if_fail(window != NULL);

  match_data.function = TOKEN_D_TAB;
  match_data.detail = (gchar *)detail;
  match_data.flags = THEME_MATCH_SHADOW | THEME_MATCH_STATE;
  match_data.shadow = shadow;
  match_data.state = state;
  
  if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			  x, y, width, height))
    parent_class->draw_tab (style, window, state, shadow, area, widget, detail,
			    x, y, width, height);
}

static void
draw_shadow_gap (GtkStyle       *style,
		 GdkWindow      *window,
		 GtkStateType    state,
		 GtkShadowType   shadow,
		 GdkRectangle   *area,
		 GtkWidget      *widget,
		 const gchar    *detail,
		 gint            x,
		 gint            y,
		 gint            width,
		 gint            height,
		 GtkPositionType gap_side,
		 gint            gap_x,
		 gint            gap_width)
{
  ThemeMatchData match_data;
  
  match_data.function = TOKEN_D_SHADOW_GAP;
  match_data.detail = (gchar *)detail;
  match_data.flags = THEME_MATCH_SHADOW | THEME_MATCH_STATE;
  match_data.flags = (THEME_MATCH_SHADOW | 
		      THEME_MATCH_STATE | 
		      THEME_MATCH_ORIENTATION);
  match_data.shadow = shadow;
  match_data.state = state;
  
  if (!draw_gap_image (style, window, area, widget, &match_data, FALSE,
		       x, y, width, height, gap_side, gap_x, gap_width))
    parent_class->draw_shadow_gap (style, window, state, shadow, area, widget, detail,
				   x, y, width, height, gap_side, gap_x, gap_width);
}

static void
draw_box_gap (GtkStyle       *style,
	      GdkWindow      *window,
	      GtkStateType    state,
	      GtkShadowType   shadow,
	      GdkRectangle   *area,
	      GtkWidget      *widget,
	      const gchar    *detail,
	      gint            x,
	      gint            y,
	      gint            width,
	      gint            height,
	      GtkPositionType gap_side,
	      gint            gap_x,
	      gint            gap_width)
{
  ThemeMatchData match_data;
  
  match_data.function = TOKEN_D_BOX_GAP;
  match_data.detail = (gchar *)detail;
  match_data.flags = THEME_MATCH_SHADOW | THEME_MATCH_STATE;
  match_data.flags = (THEME_MATCH_SHADOW | 
		      THEME_MATCH_STATE | 
		      THEME_MATCH_ORIENTATION);
  match_data.shadow = shadow;
  match_data.state = state;
  
  if (!draw_gap_image (style, window, area, widget, &match_data, TRUE,
		       x, y, width, height, gap_side, gap_x, gap_width))
    parent_class->draw_box_gap (style, window, state, shadow, area, widget, detail,
				x, y, width, height, gap_side, gap_x, gap_width);
}

static void
draw_extension (GtkStyle       *style,
		GdkWindow      *window,
		GtkStateType    state,
		GtkShadowType   shadow,
		GdkRectangle   *area,
		GtkWidget      *widget,
		const gchar    *detail,
		gint            x,
		gint            y,
		gint            width,
		gint            height,
		GtkPositionType gap_side)
{
  ThemeMatchData match_data;
  
  g_return_if_fail(style != NULL);
  g_return_if_fail(window != NULL);

  /* Why? */
  if (width >=0)
    width++;
  if (height >=0)
    height++;
  
  match_data.function = TOKEN_D_EXTENSION;
  match_data.detail = (gchar *)detail;
  match_data.flags = THEME_MATCH_SHADOW | THEME_MATCH_STATE | THEME_MATCH_GAP_SIDE;
  match_data.shadow = shadow;
  match_data.state = state;
  match_data.gap_side = gap_side;

  if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			  x, y, width, height))
    parent_class->draw_extension (style, window, state, shadow, area, widget, detail,
				  x, y, width, height, gap_side);
}

static void
draw_focus (GtkStyle     *style,
	    GdkWindow    *window,
	    GtkStateType  state_type,
	    GdkRectangle *area,
	    GtkWidget    *widget,
	    const gchar  *detail,
	    gint          x,
	    gint          y,
	    gint          width,
	    gint          height)
{
  ThemeMatchData match_data;
  
  g_return_if_fail(style != NULL);
  g_return_if_fail(window != NULL);

  match_data.function = TOKEN_D_FOCUS;
  match_data.detail = (gchar *)detail;
  match_data.flags = 0;
  
  if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, FALSE,
			  x, y, width, height))
    parent_class->draw_focus (style, window, state_type, area, widget, detail,
			      x, y, width, height);
}

static void
draw_slider (GtkStyle      *style,
	     GdkWindow     *window,
	     GtkStateType   state,
	     GtkShadowType  shadow,
	     GdkRectangle  *area,
	     GtkWidget     *widget,
	     const gchar   *detail,
	     gint           x,
	     gint           y,
	     gint           width,
	     gint           height,
	     GtkOrientation orientation)
{
  ThemeMatchData           match_data;
  
  g_return_if_fail(style != NULL);
  g_return_if_fail(window != NULL);

  match_data.function = TOKEN_D_SLIDER;
  match_data.detail = (gchar *)detail;
  match_data.flags = (THEME_MATCH_SHADOW | 
		      THEME_MATCH_STATE | 
		      THEME_MATCH_ORIENTATION);
  match_data.shadow = shadow;
  match_data.state = state;
  match_data.orientation = orientation;

  if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			  x, y, width, height))
    parent_class->draw_slider (style, window, state, shadow, area, widget, detail,
			       x, y, width, height, orientation);
}


static void
draw_handle (GtkStyle      *style,
	     GdkWindow     *window,
	     GtkStateType   state,
	     GtkShadowType  shadow,
	     GdkRectangle  *area,
	     GtkWidget     *widget,
	     const gchar   *detail,
	     gint           x,
	     gint           y,
	     gint           width,
	     gint           height,
	     GtkOrientation orientation)
{
  ThemeMatchData match_data;
  
  g_return_if_fail (style != NULL);
  g_return_if_fail (window != NULL);

  match_data.function = TOKEN_D_HANDLE;
  match_data.detail = (gchar *)detail;
  match_data.flags = (THEME_MATCH_SHADOW | 
		      THEME_MATCH_STATE | 
		      THEME_MATCH_ORIENTATION);
  match_data.shadow = shadow;
  match_data.state = state;
  match_data.orientation = orientation;

  if (!draw_simple_image (style, window, area, widget, &match_data, TRUE, TRUE,
			  x, y, width, height))
    parent_class->draw_handle (style, window, state, shadow, area, widget, detail,
			       x, y, width, height, orientation);
}

GType pixbuf_type_style = 0;

void
pixbuf_style_register_type (GTypeModule *module)
{
  static const GTypeInfo object_info =
  {
    sizeof (PixbufStyleClass),
    (GBaseInitFunc) NULL,
    (GBaseFinalizeFunc) NULL,
    (GClassInitFunc) pixbuf_style_class_init,
    NULL,           /* class_finalize */
    NULL,           /* class_data */
    sizeof (PixbufStyle),
    0,              /* n_preallocs */
    (GInstanceInitFunc) pixbuf_style_init,
  };
  
  pixbuf_type_style = g_type_module_register_type (module,
						   GTK_TYPE_STYLE,
						   "PixbufStyle",
						   &object_info, 0);
}

static void
pixbuf_style_init (PixbufStyle *style)
{
}

static void
pixbuf_style_class_init (PixbufStyleClass *klass)
{
  GtkStyleClass *style_class = GTK_STYLE_CLASS (klass);

  parent_class = g_type_class_peek_parent (klass);

  style_class->draw_hline = draw_hline;
  style_class->draw_vline = draw_vline;
  style_class->draw_shadow = draw_shadow;
  style_class->draw_arrow = draw_arrow;
  style_class->draw_diamond = draw_diamond;
  style_class->draw_string = draw_string;
  style_class->draw_box = draw_box;
  style_class->draw_flat_box = draw_flat_box;
  style_class->draw_check = draw_check;
  style_class->draw_option = draw_option;
  style_class->draw_tab = draw_tab;
  style_class->draw_shadow_gap = draw_shadow_gap;
  style_class->draw_box_gap = draw_box_gap;
  style_class->draw_extension = draw_extension;
  style_class->draw_focus = draw_focus;
  style_class->draw_slider = draw_slider;
  style_class->draw_handle = draw_handle;
}