static void
gimp_display_shell_resolution_changed_handler (GimpImage *image,
GimpDisplayShell *shell)
{
gimp_display_shell_scale_update (shell);
if (shell->dot_for_dot)
{
if (shell->unit != GIMP_UNIT_PIXEL)
{
gimp_display_shell_rulers_update (shell);
}
gimp_display_shell_scaled (shell);
}
else
{
/* A resolution change has the same effect as a size change from
* a display shell point of view. Force a redraw of the display
* so that we don't get any display garbage.
*/
GimpDisplayConfig *config = shell->display->config;
gboolean resize_window;
/* Resize windows only in multi-window mode */
resize_window = (config->resize_windows_on_resize &&
! GIMP_GUI_CONFIG (config)->single_window_mode);
gimp_display_shell_scale_resize (shell, resize_window, FALSE);
}
}
/**
* gimp_display_shell_scroll_clamp_and_update:
* @shell:
*
* Helper function for calling two functions that are commonly called
* in pairs.
**/
void
gimp_display_shell_scroll_clamp_and_update (GimpDisplayShell *shell)
{
GimpImage *image;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
image = gimp_display_get_image (shell->display);
if (image)
{
gint bounds_x;
gint bounds_y;
gint bounds_width;
gint bounds_height;
gint min_offset_x;
gint max_offset_x;
gint min_offset_y;
gint max_offset_y;
gint offset_x;
gint offset_y;
gimp_display_shell_rotate_update_transform (shell);
gimp_display_shell_scale_get_image_bounds (shell,
&bounds_x, &bounds_y,
&bounds_width, &bounds_height);
if (shell->disp_width < bounds_width)
{
min_offset_x = bounds_x -
shell->disp_width * OVERPAN_FACTOR;
max_offset_x = bounds_x + bounds_width -
shell->disp_width * (1.0 - OVERPAN_FACTOR);
}
else
{
gint overpan_amount;
overpan_amount = shell->disp_width -
bounds_width * (1.0 - OVERPAN_FACTOR);
min_offset_x = bounds_x -
overpan_amount;
max_offset_x = bounds_x + bounds_width - shell->disp_width +
overpan_amount;
}
if (shell->disp_height < bounds_height)
{
min_offset_y = bounds_y -
shell->disp_height * OVERPAN_FACTOR;
max_offset_y = bounds_y + bounds_height -
shell->disp_height * (1.0 - OVERPAN_FACTOR);
}
else
{
gint overpan_amount;
overpan_amount = shell->disp_height -
bounds_height * (1.0 - OVERPAN_FACTOR);
min_offset_y = bounds_y -
overpan_amount;
max_offset_y = bounds_y + bounds_height +
overpan_amount - shell->disp_height;
}
/* Clamp */
offset_x = CLAMP (shell->offset_x, min_offset_x, max_offset_x);
offset_y = CLAMP (shell->offset_y, min_offset_y, max_offset_y);
if (offset_x != shell->offset_x || offset_y != shell->offset_y)
{
shell->offset_x = offset_x;
shell->offset_y = offset_y;
gimp_display_shell_rotate_update_transform (shell);
}
/* Set scrollbar stepper sensitiity */
gimp_display_shell_scrollbars_update_steppers (shell,
min_offset_x,
max_offset_x,
min_offset_y,
max_offset_y);
}
else
{
shell->offset_x = 0;
shell->offset_y = 0;
}
gimp_display_shell_scrollbars_update (shell);
gimp_display_shell_rulers_update (shell);
}