/*
* Add a major MIME type (as "text") to our viewer list
* 'Key' is the content-type string that identifies the MIME type
* 'Method' is the function that handles it
*/
static int Mime_add_major_type(const char *Key, Viewer_t Method)
{
a_List_add(MimeMajItems, MimeMajItemsSize, MimeMajItemsMax);
MimeMajItems[MimeMajItemsSize].Name = Key;
MimeMajItems[MimeMajItemsSize].Data = Method;
MimeMajItemsSize++;
return 0;
}
/*
* Queue an area for drawing. This function is called by
* p_Dw_widget_queue_draw_area. x and y are passed in world coordinates.
*/
void Dw_gtk_viewport_queue_draw (GtkDwViewport *viewport,
gint32 x,
gint32 y,
gint32 width,
gint32 height)
{
DwRectangle area;
int i;
if (viewport->draw_resize_idle_id == 0) {
viewport->draw_resize_action = DW_GTK_VIEWPORT_DRAW;
viewport->draw_resize_idle_id =
gtk_idle_add (Dw_gtk_viewport_draw_resize_idle, (gpointer)viewport);
} else if (viewport->draw_resize_action == DW_GTK_VIEWPORT_RESIZE)
/* Drawing is always overridden by resizing. */
return;
area.x = x;
area.y = y;
area.width = width;
area.height = height;
/* First, try to keep the list as clean as possible. Check whether other
* rectangles interfer with this one in some way. */
/* An idea for optimization: The list could be sorted, and so the part of
* the list we have to consider here, may be reduced, the start may be
* found via linear search. However, this probably makes balanced binary
* trees necessary, since moving elements within the array may be quite
* time-consuming.
*/
_MSG(" num_draw_areas = %d\n", viewport->num_draw_areas);
for (i = 0; i < viewport->num_draw_areas; i++) {
if (p_Dw_rectangle_is_subset (&area, &viewport->draw_areas[i]))
/* First case: area is a subset of an already queued rectangle
* -> nothing to do. */
return;
else if (p_Dw_rectangle_is_subset (&viewport->draw_areas[i], &area)) {
/* Second case: area is a subset of an already queued rectangle
* -> replace the other one with area. */
viewport->draw_areas[i] = area;
return;
}
/* Maybe some more tests: if both areas may exactly be combined to a
* rectangle? Very unlikely case ... */
}
/* No interference: add the new area to the list. */
viewport->num_draw_areas++;
a_List_add (viewport->draw_areas, viewport->num_draw_areas,
viewport->num_draw_areas_max);
viewport->draw_areas[viewport->num_draw_areas - 1] = area;
}
