/**
* gimp_display_shell_untransform_viewport:
* @shell: a #GimpDisplayShell
* @x: returns image x coordinate of display upper left corner
* @y: returns image y coordinate of display upper left corner
* @width: returns width of display measured in image coordinates
* @height: returns height of display measured in image coordinates
*
* This function calculates the part of the image, im image coordinates,
* that corresponds to the display viewport.
**/
void
gimp_display_shell_untransform_viewport (const GimpDisplayShell *shell,
gint *x,
gint *y,
gint *width,
gint *height)
{
GimpImage *image;
gint x1, y1, x2, y2;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
gimp_display_shell_untransform_xy (shell,
0, 0,
&x1, &y1,
FALSE);
gimp_display_shell_untransform_xy (shell,
shell->disp_width, shell->disp_height,
&x2, &y2,
FALSE);
image = gimp_display_get_image (shell->display);
if (x1 < 0)
x1 = 0;
if (y1 < 0)
y1 = 0;
if (x2 > gimp_image_get_width (image))
x2 = gimp_image_get_width (image);
if (y2 > gimp_image_get_height (image))
y2 = gimp_image_get_height (image);
if (x) *x = x1;
if (y) *y = y1;
if (width) *width = x2 - x1;
if (height) *height = y2 - y1;
}
void
gimp_display_shell_update_software_cursor (GimpDisplayShell *shell,
GimpCursorPrecision precision,
gint display_x,
gint display_y,
gdouble image_x,
gdouble image_y)
{
GimpStatusbar *statusbar;
GimpSessionInfo *session_info;
GimpImage *image;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
image = gimp_display_get_image (shell->display);
if (shell->draw_cursor &&
shell->proximity &&
display_x >= 0 &&
display_y >= 0)
{
gimp_canvas_item_begin_change (shell->cursor);
gimp_canvas_cursor_set (shell->cursor,
display_x,
display_y);
gimp_canvas_item_set_visible (shell->cursor, TRUE);
gimp_canvas_item_end_change (shell->cursor);
}
else
{
gimp_canvas_item_set_visible (shell->cursor, FALSE);
}
/* use the passed image_coords for the statusbar because they are
* possibly snapped...
*/
statusbar = gimp_display_shell_get_statusbar (shell);
gimp_statusbar_update_cursor (statusbar, precision, image_x, image_y);
session_info = gimp_dialog_factory_find_session_info (gimp_dialog_factory_get_singleton (),
"gimp-cursor-view");
if (session_info && gimp_session_info_get_widget (session_info))
{
GtkWidget *cursor_view;
cursor_view = gtk_bin_get_child (GTK_BIN (gimp_session_info_get_widget (session_info)));
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);
gimp_cursor_view_update_cursor (GIMP_CURSOR_VIEW (cursor_view),
image, shell->unit,
t_x, t_y);
}
}
}
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);
}
}
}
