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app: use the "show all" value of the shell where cursor_image is displayed. 

This is an attempt to fix #12333 where from the look of the trace, the
segfault may happen if it tries to dereference a NULL view->priv->shell
whereas we have a view->priv->cursor_image. Even though I couldn't
reproduce, I'm wondering if it may possible to have no active image
display while the cursor is indeed hovering an image.

Furthermore this updated code is more logical anyway, because we should
use the "show all" value from the actual display shell the cursor is
hovering, not from the active display shell.
This commit is contained in:
Jehan 2024-11-16 14:08:44 +09:00
parent 89fc9c6606
commit b13d4d9d17
3 changed files with 15 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
app/display/gimpcursorview.c
View File

@ -91,6 +91,7 @@ struct _GimpCursorViewPrivate
guint cursor_idle_id;
GimpImage *cursor_image;
GimpUnit *cursor_unit;
gboolean cursor_show_all;
gdouble cursor_x;
gdouble cursor_y;
};
@ -747,13 +748,13 @@ gimp_cursor_view_update_selection_info (GimpCursorView *view,
static gboolean
gimp_cursor_view_cursor_idle (GimpCursorView *view)
{
if (view->priv->cursor_image)
{
GimpImage *image = view->priv->cursor_image;
GimpUnit *unit = view->priv->cursor_unit;
gdouble x = view->priv->cursor_x;
gdouble y = view->priv->cursor_y;
GimpImage *image = view->priv->cursor_image;
GimpUnit *unit = view->priv->cursor_unit;
gboolean show_all = view->priv->cursor_show_all;
gdouble x = view->priv->cursor_x;
gdouble y = view->priv->cursor_y;
gboolean in_image;
gchar buf[32];
const Babl *sample_format;
@ -794,7 +795,7 @@ gimp_cursor_view_cursor_idle (GimpCursorView *view)
color = gegl_color_new ("black");
if (gimp_image_pick_color (image, NULL,
int_x, int_y,
view->priv->shell->show_all,
show_all,
view->priv->sample_merged,
FALSE, 0.0,
&sample_format, pixel, &color))
@ -884,6 +885,7 @@ void
gimp_cursor_view_update_cursor (GimpCursorView *view,
GimpImage *image,
GimpUnit *shell_unit,
gboolean shell_show_all,
gdouble x,
gdouble y)
{
@ -892,10 +894,11 @@ gimp_cursor_view_update_cursor (GimpCursorView *view,
g_clear_object (&view->priv->cursor_image);
view->priv->cursor_image = g_object_ref (image);
view->priv->cursor_unit = shell_unit;
view->priv->cursor_x = x;
view->priv->cursor_y = y;
view->priv->cursor_image = g_object_ref (image);
view->priv->cursor_unit = shell_unit;
view->priv->cursor_show_all = shell_show_all;
view->priv->cursor_x = x;
view->priv->cursor_y = y;
if (view->priv->cursor_idle_id == 0)
{

1
app/display/gimpcursorview.h
View File

@ -61,6 +61,7 @@ gboolean gimp_cursor_view_get_sample_merged (GimpCursorView *view);
void gimp_cursor_view_update_cursor (GimpCursorView *view,
GimpImage *image,
GimpUnit *shell_unit,
gboolean shell_show_all,
gdouble x,
gdouble y);
void gimp_cursor_view_clear_cursor (GimpCursorView *view);

2
app/display/gimpdisplayshell-cursor.c
View File

@ -181,7 +181,7 @@ gimp_display_shell_update_software_cursor (GimpDisplayShell *shell,
&t_x, &t_y, FALSE);
gimp_cursor_view_update_cursor (GIMP_CURSOR_VIEW (cursor_view),
image, shell->unit,
image, shell->unit, shell->show_all,
t_x, t_y);
}
}