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display: Verify GtkWidget is a GimpCanvas object...

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...before trying to get its GimpColorConfig.
Resolves #13691

After the color space invasion, various GimpCanvas
functions are now aware of color management settings.
However, these public GimpCanvas functions do not
require the user to pass in a GimpCanvas, just a GtkWidget.
This can lead to crashes if we pass in a different kind of
GtkWidget, since it may not have a GimpColorConfig property.

One example is the Navigation Dockable, which crashes when
it tries to draw boundaries around the image when "Show All"
is turned on, because it passes a GimpView widget instead of
a GimpCanvas.

This patch adds a check if the "canvas" parameter is actually a
GimpCanvas, and sets the config to NULL otherwise.
This commit is contained in:
Alx Sa 2025-04-13 15:31:48 +00:00
parent ea89353fd7
commit c3814125e3
1 changed files with 18 additions and 12 deletions
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18
app/display/gimpcanvas-style.c
View file

@ -232,7 +232,7 @@ gimp_canvas_set_guide_style (GtkWidget *canvas,
gdouble offset_y)
{
const Babl *render_space;
GimpColorConfig *config;
GimpColorConfig *config = NULL;
cairo_pattern_t *pattern;
GeglColor *normal_fg;
GeglColor *normal_bg;
@ -284,6 +284,7 @@ gimp_canvas_set_guide_style (GtkWidget *canvas,
cairo_set_line_width (cr, line_width);
if (GIMP_IS_CANVAS (canvas))
config = GIMP_CORE_CONFIG (GIMP_CANVAS (canvas)->config)->color_management;
render_space = gimp_widget_get_render_space (canvas, config);
if (active)
@ -324,7 +325,7 @@ gimp_canvas_set_grid_style (GtkWidget *canvas,
gdouble offset_y)
{
const Babl *render_space;
GimpColorConfig *config;
GimpColorConfig *config = NULL;
GeglColor *fg;
GeglColor *bg;
@ -336,6 +337,7 @@ gimp_canvas_set_grid_style (GtkWidget *canvas,
fg = gimp_grid_get_fgcolor (grid);
if (GIMP_IS_CANVAS (canvas))
config = GIMP_CORE_CONFIG (GIMP_CANVAS (canvas)->config)->color_management;
render_space = gimp_widget_get_render_space (canvas, config);
switch (gimp_grid_get_style (grid))
@ -403,7 +405,7 @@ gimp_canvas_set_layer_style (GtkWidget *canvas,
gdouble offset_y)
{
const Babl *render_space;
GimpColorConfig *config;
GimpColorConfig *config = NULL;
cairo_pattern_t *pattern;
g_return_if_fail (GTK_IS_WIDGET (canvas));
@ -413,6 +415,7 @@ gimp_canvas_set_layer_style (GtkWidget *canvas,
cairo_set_line_width (cr, 1.0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
if (GIMP_IS_CANVAS (canvas))
config = GIMP_CORE_CONFIG (GIMP_CANVAS (canvas)->config)->color_management;
render_space = gimp_widget_get_render_space (canvas, config);
if (gimp_layer_get_mask (layer) &&
@ -445,7 +448,7 @@ gimp_canvas_set_canvas_style (GtkWidget *canvas,
gdouble offset_y)
{
const Babl *render_space;
GimpColorConfig *config;
GimpColorConfig *config = NULL;
cairo_pattern_t *pattern;
g_return_if_fail (GTK_IS_WIDGET (canvas));
@ -454,6 +457,7 @@ gimp_canvas_set_canvas_style (GtkWidget *canvas,
cairo_set_line_width (cr, 1.0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
if (GIMP_IS_CANVAS (canvas))
config = GIMP_CORE_CONFIG (GIMP_CANVAS (canvas)->config)->color_management;
render_space = gimp_widget_get_render_space (canvas, config);
pattern = gimp_cairo_pattern_create_stipple (canvas_fg, canvas_bg, 0,
@ -470,7 +474,7 @@ gimp_canvas_set_selection_out_style (GtkWidget *canvas,
gdouble offset_y)
{
const Babl *render_space;
GimpColorConfig *config;
GimpColorConfig *config = NULL;
cairo_pattern_t *pattern;
g_return_if_fail (GTK_IS_WIDGET (canvas));
@ -479,6 +483,7 @@ gimp_canvas_set_selection_out_style (GtkWidget *canvas,
cairo_set_line_width (cr, 1.0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
if (GIMP_IS_CANVAS (canvas))
config = GIMP_CORE_CONFIG (GIMP_CANVAS (canvas)->config)->color_management;
render_space = gimp_widget_get_render_space (canvas, config);
pattern = gimp_cairo_pattern_create_stipple (selection_out_fg, selection_out_bg, 0,
@ -495,7 +500,7 @@ gimp_canvas_set_selection_in_style (GtkWidget *canvas,
gdouble offset_y)
{
const Babl *render_space;
GimpColorConfig *config;
GimpColorConfig *config = NULL;
cairo_pattern_t *pattern;
g_return_if_fail (GTK_IS_WIDGET (canvas));
@ -504,6 +509,7 @@ gimp_canvas_set_selection_in_style (GtkWidget *canvas,
cairo_set_line_width (cr, 1.0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
if (GIMP_IS_CANVAS (canvas))
config = GIMP_CORE_CONFIG (GIMP_CANVAS (canvas)->config)->color_management;
render_space = gimp_widget_get_render_space (canvas, config);
pattern = gimp_cairo_pattern_create_stipple (selection_in_fg, selection_in_bg, index,