static void
selection_undraw (Selection *selection)
{
gint x1, y1, x2, y2;
selection_stop (selection);
if (gimp_display_shell_mask_bounds (selection->shell, &x1, &y1, &x2, &y2))
{
/* expose will restart the selection */
gimp_display_shell_expose_area (selection->shell,
x1, y1, (x2 - x1), (y2 - y1));
}
else
{
selection_start (selection);
}
}
static void
gimp_display_shell_item_update (GimpCanvasItem *item,
cairo_region_t *region,
GimpDisplayShell *shell)
{
if (shell->rotate_transform)
{
gint n_rects;
gint i;
n_rects = cairo_region_num_rectangles (region);
for (i = 0; i < n_rects; i++)
{
cairo_rectangle_int_t rect;
gdouble tx1, ty1;
gdouble tx2, ty2;
gint x1, y1, x2, y2;
cairo_region_get_rectangle (region, i, &rect);
gimp_display_shell_rotate_transform_bounds (shell,
rect.x, rect.y,
rect.x + rect.width,
rect.y + rect.height,
&tx1, &ty1, &tx2, &ty2);
x1 = floor (tx1 - 0.5);
y1 = floor (ty1 - 0.5);
x2 = ceil (tx2 + 0.5);
y2 = ceil (ty2 + 0.5);
gimp_display_shell_expose_area (shell, x1, y1, x2 - x1, y2 - y1);
}
}
else
{
gimp_display_shell_expose_region (shell, region);
}
}
static void
gimp_display_paint_area (GimpDisplay *display,
gint x,
gint y,
gint w,
gint h)
{
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
gint x1, y1, x2, y2;
gdouble x1_f, y1_f, x2_f, y2_f;
/* Bounds check */
x1 = CLAMP (x, 0, display->image->width);
y1 = CLAMP (y, 0, display->image->height);
x2 = CLAMP (x + w, 0, display->image->width);
y2 = CLAMP (y + h, 0, display->image->height);
x = x1;
y = y1;
w = (x2 - x1);
h = (y2 - y1);
/* display the area */
gimp_display_shell_transform_xy_f (shell, x, y, &x1_f, &y1_f, FALSE);
gimp_display_shell_transform_xy_f (shell, x + w, y + h, &x2_f, &y2_f, FALSE);
/* make sure to expose a superset of the transformed sub-pixel expose
* area, not a subset. bug #126942. --mitch
*
* also acommodate for spill introduced by potential box filtering.
* (bug #474509). --simon
*/
x1 = floor (x1_f - 0.5);
y1 = floor (y1_f - 0.5);
x2 = ceil (x2_f + 0.5);
y2 = ceil (y2_f + 0.5);
gimp_display_shell_expose_area (shell, x1, y1, x2 - x1, y2 - y1);
}
void
gimp_display_shell_update_cursor (GimpDisplayShell *shell,
gint display_x,
gint display_y,
gint image_x,
gint image_y)
{
GimpDialogFactory *factory;
GimpSessionInfo *session_info;
GimpImage *image;
gboolean new_cursor;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
image = shell->display->image;
new_cursor = (shell->draw_cursor &&
shell->proximity &&
display_x >= 0 &&
display_y >= 0);
/* Erase old cursor, if necessary */
if (shell->have_cursor && (! new_cursor ||
display_x != shell->cursor_x ||
display_y != shell->cursor_y))
{
gimp_display_shell_expose_area (shell,
shell->cursor_x - 7,
shell->cursor_y - 7,
15, 15);
if (! new_cursor)
shell->have_cursor = FALSE;
}
shell->have_cursor = new_cursor;
shell->cursor_x = display_x;
shell->cursor_y = display_y;
/* use the passed image_coords for the statusbar because they are
* possibly snapped...
*/
gimp_statusbar_update_cursor (GIMP_STATUSBAR (shell->statusbar),
image_x, image_y);
factory = gimp_dialog_factory_from_name ("dock");
session_info = gimp_dialog_factory_find_session_info (factory,
"gimp-cursor-view");
if (session_info && session_info->widget)
{
GtkWidget *cursor_view;
cursor_view = gtk_bin_get_child (GTK_BIN (session_info->widget));
if (cursor_view)
{
gint t_x = -1;
gint t_y = -1;
/* ...but use the unsnapped display_coords for the info window */
if (display_x >= 0 && display_y >= 0)
gimp_display_shell_untransform_xy (shell, display_x, display_y,
&t_x, &t_y, FALSE, FALSE);
gimp_cursor_view_update_cursor (GIMP_CURSOR_VIEW (cursor_view),
shell->display->image, shell->unit,
t_x, t_y);
}
}
}