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compute the slider positions in the expose event handler so that the 

2004-03-05  Sven Neumann  <sven@gimp.org>

	* app/tools/gimplevelstool.c: compute the slider positions in the
	expose event handler so that the sliders get positioned correctly
	when the dialog is resized.
This commit is contained in:
Sven Neumann 2004-03-05 14:22:02 +00:00 committed by Sven Neumann
parent 2e71dc9d6c
commit dd4a8fff00
2 changed files with 46 additions and 41 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2004-03-05 Sven Neumann <sven@gimp.org>
* app/tools/gimplevelstool.c: compute the slider positions in the
expose event handler so that the sliders get positioned correctly
when the dialog is resized.
2004-03-05 Sven Neumann <sven@gimp.org>
* libgimpwidgets/gimpwidgets.c (gimp_random_seed_new): resurrected

81
app/tools/gimplevelstool.c
View File

@ -886,56 +886,16 @@ levels_update (GimpLevelsTool *tool,
if (update & OUTPUT_LEVELS)
{
gimp_color_bar_set_channel (GIMP_COLOR_BAR (tool->output_bar),
channel);
gimp_color_bar_set_channel (GIMP_COLOR_BAR (tool->output_bar), channel);
}
if (update & INPUT_SLIDERS)
{
Levels *levels = tool->levels;
gint width = tool->input_area->allocation.width;
gdouble delta, mid, tmp;
gint border;
g_object_get (tool->hist_view, "border-width", &border, NULL);
width -= 2 * border;
tool->slider_pos[0] = ROUND ((gdouble) width *
levels->low_input[tool->channel] /
256.0) + border;
tool->slider_pos[2] = ROUND ((gdouble) width *
levels->high_input[tool->channel] /
256.0) + border;
delta = (gdouble) (tool->slider_pos[2] - tool->slider_pos[0]) / 2.0;
mid = tool->slider_pos[0] + delta;
tmp = log10 (1.0 / levels->gamma[tool->channel]);
tool->slider_pos[1] = ROUND (mid + delta * tmp) + border;
gtk_widget_queue_draw (tool->input_area);
}
if (update & OUTPUT_SLIDERS)
{
Levels *levels = tool->levels;
gint width = tool->output_area->allocation.width;
gint border;
g_object_get (tool->hist_view, "border-width", &border, NULL);
width -= 2 * border;
tool->slider_pos[3] = ROUND ((gdouble) width *
levels->low_output[tool->channel] /
256.0) + border;
tool->slider_pos[4] = ROUND ((gdouble) width *
levels->high_output[tool->channel] /
256.0) + border;
gtk_widget_queue_draw (tool->output_area);
}
}
@ -1221,6 +1181,29 @@ levels_input_area_expose (GtkWidget *widget,
GdkEventExpose *event,
GimpLevelsTool *tool)
{
Levels *levels = tool->levels;
gint width = widget->allocation.width;
gdouble delta, mid, tmp;
gint border;
g_object_get (tool->hist_view, "border-width", &border, NULL);
width -= 2 * border;
tool->slider_pos[0] = ROUND ((gdouble) width *
levels->low_input[tool->channel] /
256.0) + border;
tool->slider_pos[2] = ROUND ((gdouble) width *
levels->high_input[tool->channel] /
256.0) + border;
delta = (gdouble) (tool->slider_pos[2] - tool->slider_pos[0]) / 2.0;
mid = tool->slider_pos[0] + delta;
tmp = log10 (1.0 / levels->gamma[tool->channel]);
tool->slider_pos[1] = ROUND (mid + delta * tmp) + border;
levels_draw_slider (widget,
widget->style->black_gc,
widget->style->black_gc,
@ -1331,6 +1314,22 @@ levels_output_area_expose (GtkWidget *widget,
GdkEventExpose *event,
GimpLevelsTool *tool)
{
Levels *levels = tool->levels;
gint width = widget->allocation.width;
gint border;
g_object_get (tool->hist_view, "border-width", &border, NULL);
width -= 2 * border;
tool->slider_pos[3] = ROUND ((gdouble) width *
levels->low_output[tool->channel] /
256.0) + border;
tool->slider_pos[4] = ROUND ((gdouble) width *
levels->high_output[tool->channel] /
256.0) + border;
levels_draw_slider (widget,
widget->style->black_gc,
widget->style->black_gc,