mirror of https://github.com/GNOME/gimp.git
added a sample average feature (requested by Xach) that picks a color from
* app/color_picker.c: added a sample average feature (requested by Xach) that picks a color from the average of all the pixels from the source point within a given radius -Yosh
This commit is contained in:
Manish Singh
parent
fe7d273bbe
commit
c881d7bf02
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@ -1,3 +1,9 @@
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Sat Apr 10 23:33:26 PDT 1999 Manish Singh <yosh@gimp.org>
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* app/color_picker.c: added a sample average feature (requested
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by Xach) that picks a color from the average of all the pixels
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from the source point within a given radius
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1999-04-11 Tuomas Kuosmanen <tigert@gimp.org>
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* pixmaps/delete.xpm: I put the delete icon from gnome here,
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@ -39,6 +39,16 @@ struct _ColorPickerOptions
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int sample_merged;
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int sample_merged_d;
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GtkWidget *sample_merged_w;
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int sample_average;
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int sample_average_d;
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GtkWidget *sample_average_w;
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GtkWidget *average_radius_box;
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double average_radius;
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double average_radius_d;
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GtkObject *average_radius_w;
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};
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/* the color picker tool options */
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@ -67,7 +77,7 @@ static void color_picker_cursor_update (Tool *, GdkEventMotion *, gpointer);
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static void color_picker_control (Tool *, int, void *);
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static void color_picker_info_window_close_callback (GtkWidget *, gpointer);
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static int get_color (GImage *, GimpDrawable *, int, int, int, int);
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static int get_color (GimpImage *, GimpDrawable *, int, int, gboolean, gboolean, double, int);
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static void color_picker_info_update (Tool *, int);
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static Argument *color_picker_invoker (Argument *);
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@ -79,7 +89,8 @@ static void
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color_picker_toggle_update (GtkWidget *w,
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gpointer data)
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{
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int *toggle_val;
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GtkWidget *set_sensitive;
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int *toggle_val;
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toggle_val = (int *) data;
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@ -87,6 +98,29 @@ color_picker_toggle_update (GtkWidget *w,
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*toggle_val = TRUE;
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else
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*toggle_val = FALSE;
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set_sensitive =
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(GtkWidget*) gtk_object_get_data (GTK_OBJECT (w), "set_sensitive");
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if (set_sensitive)
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{
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gtk_widget_set_sensitive (set_sensitive, *toggle_val);
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if (GTK_IS_SCALE (set_sensitive))
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{
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set_sensitive =
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gtk_object_get_data (GTK_OBJECT (set_sensitive), "scale_label");
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if (set_sensitive)
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gtk_widget_set_sensitive (set_sensitive, *toggle_val);
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}
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}
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}
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static void
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color_picker_scale_update (GtkAdjustment *adjustment,
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double *scale_val)
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{
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*scale_val = adjustment->value;
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}
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static void
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@ -96,6 +130,8 @@ reset_color_picker_options (void)
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->sample_merged_w),
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options->sample_merged_d);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->sample_average_w),
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options->sample_average_d);
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}
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static ColorPickerOptions *
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@ -103,13 +139,19 @@ create_color_picker_options (void)
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{
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ColorPickerOptions *options;
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GtkWidget *vbox;
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GtkWidget *abox;
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GtkWidget *table;
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GtkWidget *label;
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GtkWidget *scale;
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/* the new options structure */
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options = (ColorPickerOptions *) g_malloc (sizeof (ColorPickerOptions));
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options->sample_merged = options->sample_merged_d = FALSE;
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options->sample_average = options->sample_average_d = FALSE;
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options->average_radius = options->average_radius_d = 1.0;
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/* the main vbox */
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vbox = gtk_vbox_new (FALSE, 1);
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vbox = gtk_vbox_new (FALSE, 2);
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/* the sample merged toggle button */
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options->sample_merged_w =
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@ -122,6 +164,51 @@ create_color_picker_options (void)
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&options->sample_merged);
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gtk_widget_show (options->sample_merged_w);
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/* the sample average options */
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table = gtk_table_new (2, 2, FALSE);
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gtk_table_set_col_spacing (GTK_TABLE (table), 0, 6);
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gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
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options->sample_average_w =
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gtk_check_button_new_with_label (_("Sample Average"));
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gtk_table_attach (GTK_TABLE (table), options->sample_average_w, 0, 1, 0, 1,
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GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 0);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->sample_average_w),
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options->sample_average_d);
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gtk_signal_connect (GTK_OBJECT (options->sample_average_w), "toggled",
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(GtkSignalFunc) color_picker_toggle_update,
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&options->sample_average);
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gtk_widget_show (options->sample_average_w);
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label = gtk_label_new (_("Radius:"));
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gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
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gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
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GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
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gtk_widget_show (label);
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/* the feather radius scale */
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abox = gtk_alignment_new (0.5, 1.0, 1.0, 0.0);
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gtk_table_attach (GTK_TABLE (table), abox, 1, 2, 0, 2,
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GTK_EXPAND | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
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gtk_widget_show (abox);
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options->average_radius_w =
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gtk_adjustment_new (options->average_radius_d, 1.0, 15.0, 2.0, 2.0, 0.0);
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scale = gtk_hscale_new (GTK_ADJUSTMENT (options->average_radius_w));
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gtk_container_add (GTK_CONTAINER (abox), scale);
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gtk_widget_set_sensitive (scale, options->sample_average_d);
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gtk_object_set_data (GTK_OBJECT (options->sample_average_w), "set_sensitive",
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scale);
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gtk_object_set_data (GTK_OBJECT (scale), "scale_label",
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label);
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gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_TOP);
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gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_DELAYED);
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gtk_signal_connect (GTK_OBJECT (options->average_radius_w), "value_changed",
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(GtkSignalFunc) color_picker_scale_update,
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&options->average_radius);
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gtk_widget_show (scale);
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gtk_widget_show (table);
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/* Register this selection options widget with the main tools options dialog
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*/
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tools_register (COLOR_PICKER, vbox, _("Color Picker Options"),
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@ -212,6 +299,8 @@ color_picker_button_press (Tool *tool,
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{
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color_picker_info_update (tool, get_color (gdisp->gimage, active_drawable, x, y,
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color_picker_options->sample_merged,
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color_picker_options->sample_average,
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color_picker_options->average_radius,
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COLOR_NEW));
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update_type = COLOR_UPDATE_NEW;
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}
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@ -219,6 +308,8 @@ color_picker_button_press (Tool *tool,
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{
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color_picker_info_update (tool, get_color (gdisp->gimage, active_drawable, x, y,
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color_picker_options->sample_merged,
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color_picker_options->sample_average,
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color_picker_options->average_radius,
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COLOR_UPDATE));
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update_type = COLOR_UPDATE;
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}
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@ -243,6 +334,8 @@ color_picker_button_release (Tool *tool,
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color_picker_info_update (tool, get_color (gdisp->gimage, active_drawable, x, y,
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color_picker_options->sample_merged,
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color_picker_options->sample_average,
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color_picker_options->average_radius,
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update_type));
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}
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@ -261,6 +354,8 @@ color_picker_motion (Tool *tool,
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color_picker_info_update (tool, get_color (gdisp->gimage, active_drawable, x, y,
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color_picker_options->sample_merged,
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color_picker_options->sample_average,
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color_picker_options->average_radius,
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update_type));
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}
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@ -288,50 +383,94 @@ color_picker_control (Tool *tool,
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{
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}
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typedef guchar * (*GetColorFunc) (GtkObject *, int, int);
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static int
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get_color (GImage *gimage,
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get_color (GimpImage *gimage,
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GimpDrawable *drawable,
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int x,
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int y,
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int sample_merged,
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int final)
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int x,
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int y,
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gboolean sample_merged,
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gboolean sample_average,
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double average_radius,
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int final)
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{
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unsigned char *color;
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guchar *color;
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int offx, offy;
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int has_alpha;
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int is_indexed;
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GetColorFunc get_color_func;
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GtkObject *get_color_obj;
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if (!drawable && !sample_merged)
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return FALSE;
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if (! sample_merged)
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if (!sample_merged)
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{
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drawable_offsets (drawable, &offx, &offy);
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x -= offx;
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y -= offy;
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if (!(color = gimp_drawable_get_color_at(drawable, x, y)))
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return FALSE;
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sample_type = gimp_drawable_type(drawable);
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sample_type = gimp_drawable_type (drawable);
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is_indexed = gimp_drawable_indexed (drawable);
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get_color_func = (GetColorFunc) gimp_drawable_get_color_at;
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get_color_obj = GTK_OBJECT (drawable);
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}
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else
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{
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if (!(color = gimp_image_get_color_at(gimage, x, y)))
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return FALSE;
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sample_type = gimp_image_composite_type(gimage);
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sample_type = gimp_image_composite_type (gimage);
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is_indexed = FALSE;
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get_color_func = (GetColorFunc) gimp_image_get_color_at;
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get_color_obj = GTK_OBJECT (gimage);
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}
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has_alpha = TYPE_HAS_ALPHA(sample_type);
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has_alpha = TYPE_HAS_ALPHA (sample_type);
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if (!(color = (*get_color_func) (get_color_obj, x, y)))
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return FALSE;
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if (sample_average)
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{
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int i, j;
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int count = 0;
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int color_avg[4] = { 0, 0, 0, 0 };
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guchar *tmp_color;
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int radius = (int) average_radius;
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for (i = x - radius; i <= x + radius; i++)
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for (j = y - radius; j <= y + radius; j++)
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if ((tmp_color = (*get_color_func) (get_color_obj, i, j)))
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{
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count++;
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color_avg[RED_PIX] += tmp_color[RED_PIX];
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color_avg[GREEN_PIX] += tmp_color[GREEN_PIX];
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color_avg[BLUE_PIX] += tmp_color[BLUE_PIX];
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if (has_alpha)
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color_avg[ALPHA_PIX] += tmp_color[3];
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g_free(tmp_color);
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}
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color[RED_PIX] = (guchar) (color_avg[RED_PIX] / count);
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color[GREEN_PIX] = (guchar) (color_avg[GREEN_PIX] / count);
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color[BLUE_PIX] = (guchar) (color_avg[BLUE_PIX] / count);
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if (has_alpha)
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color[ALPHA_PIX] = (guchar) (color_avg[3] / count);
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is_indexed = FALSE;
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}
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col_value[RED_PIX] = color[RED_PIX];
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col_value[GREEN_PIX] = color[GREEN_PIX];
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col_value[BLUE_PIX] = color[BLUE_PIX];
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if (has_alpha)
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{
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col_value [ALPHA_PIX] = color[3];
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}
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col_value[ALPHA_PIX] = color[3];
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if (is_indexed)
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col_value [4] = color[4];
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col_value[4] = color[4];
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palette_set_active_color (col_value [RED_PIX], col_value [GREEN_PIX],
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col_value [BLUE_PIX], final);
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g_free(color);
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@ -551,7 +690,7 @@ color_picker_invoker (Argument *args)
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/* call the color_picker procedure */
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if (success)
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success = get_color (gimage, drawable, (int) x, (int) y, sample_merged, save_color);
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success = get_color (gimage, drawable, (int) x, (int) y, sample_merged, FALSE, 1.0, save_color);
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return_args = procedural_db_return_args (&color_picker_proc, success);
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@ -39,6 +39,16 @@ struct _ColorPickerOptions
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int sample_merged;
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int sample_merged_d;
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GtkWidget *sample_merged_w;
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int sample_average;
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int sample_average_d;
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GtkWidget *sample_average_w;
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GtkWidget *average_radius_box;
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double average_radius;
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double average_radius_d;
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GtkObject *average_radius_w;
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};
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/* the color picker tool options */
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@ -67,7 +77,7 @@ static void color_picker_cursor_update (Tool *, GdkEventMotion *, gpointer);
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static void color_picker_control (Tool *, int, void *);
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static void color_picker_info_window_close_callback (GtkWidget *, gpointer);
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static int get_color (GImage *, GimpDrawable *, int, int, int, int);
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static int get_color (GimpImage *, GimpDrawable *, int, int, gboolean, gboolean, double, int);
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static void color_picker_info_update (Tool *, int);
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static Argument *color_picker_invoker (Argument *);
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@ -79,7 +89,8 @@ static void
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color_picker_toggle_update (GtkWidget *w,
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gpointer data)
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{
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int *toggle_val;
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GtkWidget *set_sensitive;
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int *toggle_val;
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toggle_val = (int *) data;
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@ -87,6 +98,29 @@ color_picker_toggle_update (GtkWidget *w,
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*toggle_val = TRUE;
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else
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*toggle_val = FALSE;
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set_sensitive =
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(GtkWidget*) gtk_object_get_data (GTK_OBJECT (w), "set_sensitive");
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if (set_sensitive)
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{
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gtk_widget_set_sensitive (set_sensitive, *toggle_val);
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if (GTK_IS_SCALE (set_sensitive))
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{
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set_sensitive =
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gtk_object_get_data (GTK_OBJECT (set_sensitive), "scale_label");
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if (set_sensitive)
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gtk_widget_set_sensitive (set_sensitive, *toggle_val);
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}
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}
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}
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static void
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color_picker_scale_update (GtkAdjustment *adjustment,
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double *scale_val)
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{
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*scale_val = adjustment->value;
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}
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static void
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@ -96,6 +130,8 @@ reset_color_picker_options (void)
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->sample_merged_w),
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options->sample_merged_d);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->sample_average_w),
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options->sample_average_d);
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}
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static ColorPickerOptions *
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@ -103,13 +139,19 @@ create_color_picker_options (void)
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{
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ColorPickerOptions *options;
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GtkWidget *vbox;
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GtkWidget *abox;
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GtkWidget *table;
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GtkWidget *label;
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GtkWidget *scale;
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/* the new options structure */
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options = (ColorPickerOptions *) g_malloc (sizeof (ColorPickerOptions));
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options->sample_merged = options->sample_merged_d = FALSE;
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options->sample_average = options->sample_average_d = FALSE;
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options->average_radius = options->average_radius_d = 1.0;
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/* the main vbox */
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vbox = gtk_vbox_new (FALSE, 1);
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vbox = gtk_vbox_new (FALSE, 2);
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/* the sample merged toggle button */
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options->sample_merged_w =
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@ -122,6 +164,51 @@ create_color_picker_options (void)
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&options->sample_merged);
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gtk_widget_show (options->sample_merged_w);
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/* the sample average options */
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table = gtk_table_new (2, 2, FALSE);
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gtk_table_set_col_spacing (GTK_TABLE (table), 0, 6);
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gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
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options->sample_average_w =
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gtk_check_button_new_with_label (_("Sample Average"));
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gtk_table_attach (GTK_TABLE (table), options->sample_average_w, 0, 1, 0, 1,
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GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 0);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->sample_average_w),
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options->sample_average_d);
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gtk_signal_connect (GTK_OBJECT (options->sample_average_w), "toggled",
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(GtkSignalFunc) color_picker_toggle_update,
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&options->sample_average);
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gtk_widget_show (options->sample_average_w);
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label = gtk_label_new (_("Radius:"));
|
||||
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
|
||||
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
|
||||
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
|
||||
gtk_widget_show (label);
|
||||
|
||||
/* the feather radius scale */
|
||||
abox = gtk_alignment_new (0.5, 1.0, 1.0, 0.0);
|
||||
gtk_table_attach (GTK_TABLE (table), abox, 1, 2, 0, 2,
|
||||
GTK_EXPAND | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
|
||||
gtk_widget_show (abox);
|
||||
|
||||
options->average_radius_w =
|
||||
gtk_adjustment_new (options->average_radius_d, 1.0, 15.0, 2.0, 2.0, 0.0);
|
||||
scale = gtk_hscale_new (GTK_ADJUSTMENT (options->average_radius_w));
|
||||
gtk_container_add (GTK_CONTAINER (abox), scale);
|
||||
gtk_widget_set_sensitive (scale, options->sample_average_d);
|
||||
gtk_object_set_data (GTK_OBJECT (options->sample_average_w), "set_sensitive",
|
||||
scale);
|
||||
gtk_object_set_data (GTK_OBJECT (scale), "scale_label",
|
||||
label);
|
||||
gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_TOP);
|
||||
gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_DELAYED);
|
||||
gtk_signal_connect (GTK_OBJECT (options->average_radius_w), "value_changed",
|
||||
(GtkSignalFunc) color_picker_scale_update,
|
||||
&options->average_radius);
|
||||
gtk_widget_show (scale);
|
||||
gtk_widget_show (table);
|
||||
|
||||
/* Register this selection options widget with the main tools options dialog
|
||||
*/
|
||||
tools_register (COLOR_PICKER, vbox, _("Color Picker Options"),
|
||||
|
|
@ -212,6 +299,8 @@ color_picker_button_press (Tool *tool,
|
|||
{
|
||||
color_picker_info_update (tool, get_color (gdisp->gimage, active_drawable, x, y,
|
||||
color_picker_options->sample_merged,
|
||||
color_picker_options->sample_average,
|
||||
color_picker_options->average_radius,
|
||||
COLOR_NEW));
|
||||
update_type = COLOR_UPDATE_NEW;
|
||||
}
|
||||
|
|
@ -219,6 +308,8 @@ color_picker_button_press (Tool *tool,
|
|||
{
|
||||
color_picker_info_update (tool, get_color (gdisp->gimage, active_drawable, x, y,
|
||||
color_picker_options->sample_merged,
|
||||
color_picker_options->sample_average,
|
||||
color_picker_options->average_radius,
|
||||
COLOR_UPDATE));
|
||||
update_type = COLOR_UPDATE;
|
||||
}
|
||||
|
|
@ -243,6 +334,8 @@ color_picker_button_release (Tool *tool,
|
|||
|
||||
color_picker_info_update (tool, get_color (gdisp->gimage, active_drawable, x, y,
|
||||
color_picker_options->sample_merged,
|
||||
color_picker_options->sample_average,
|
||||
color_picker_options->average_radius,
|
||||
update_type));
|
||||
}
|
||||
|
||||
|
|
@ -261,6 +354,8 @@ color_picker_motion (Tool *tool,
|
|||
|
||||
color_picker_info_update (tool, get_color (gdisp->gimage, active_drawable, x, y,
|
||||
color_picker_options->sample_merged,
|
||||
color_picker_options->sample_average,
|
||||
color_picker_options->average_radius,
|
||||
update_type));
|
||||
}
|
||||
|
||||
|
|
@ -288,50 +383,94 @@ color_picker_control (Tool *tool,
|
|||
{
|
||||
}
|
||||
|
||||
typedef guchar * (*GetColorFunc) (GtkObject *, int, int);
|
||||
|
||||
static int
|
||||
get_color (GImage *gimage,
|
||||
get_color (GimpImage *gimage,
|
||||
GimpDrawable *drawable,
|
||||
int x,
|
||||
int y,
|
||||
int sample_merged,
|
||||
int final)
|
||||
int x,
|
||||
int y,
|
||||
gboolean sample_merged,
|
||||
gboolean sample_average,
|
||||
double average_radius,
|
||||
int final)
|
||||
{
|
||||
unsigned char *color;
|
||||
guchar *color;
|
||||
int offx, offy;
|
||||
int has_alpha;
|
||||
int is_indexed;
|
||||
GetColorFunc get_color_func;
|
||||
GtkObject *get_color_obj;
|
||||
|
||||
if (!drawable && !sample_merged)
|
||||
return FALSE;
|
||||
|
||||
if (! sample_merged)
|
||||
if (!sample_merged)
|
||||
{
|
||||
drawable_offsets (drawable, &offx, &offy);
|
||||
x -= offx;
|
||||
y -= offy;
|
||||
if (!(color = gimp_drawable_get_color_at(drawable, x, y)))
|
||||
return FALSE;
|
||||
sample_type = gimp_drawable_type(drawable);
|
||||
|
||||
sample_type = gimp_drawable_type (drawable);
|
||||
is_indexed = gimp_drawable_indexed (drawable);
|
||||
|
||||
get_color_func = (GetColorFunc) gimp_drawable_get_color_at;
|
||||
get_color_obj = GTK_OBJECT (drawable);
|
||||
}
|
||||
else
|
||||
{
|
||||
if (!(color = gimp_image_get_color_at(gimage, x, y)))
|
||||
return FALSE;
|
||||
sample_type = gimp_image_composite_type(gimage);
|
||||
sample_type = gimp_image_composite_type (gimage);
|
||||
is_indexed = FALSE;
|
||||
|
||||
get_color_func = (GetColorFunc) gimp_image_get_color_at;
|
||||
get_color_obj = GTK_OBJECT (gimage);
|
||||
}
|
||||
|
||||
has_alpha = TYPE_HAS_ALPHA(sample_type);
|
||||
has_alpha = TYPE_HAS_ALPHA (sample_type);
|
||||
|
||||
if (!(color = (*get_color_func) (get_color_obj, x, y)))
|
||||
return FALSE;
|
||||
|
||||
if (sample_average)
|
||||
{
|
||||
int i, j;
|
||||
int count = 0;
|
||||
int color_avg[4] = { 0, 0, 0, 0 };
|
||||
guchar *tmp_color;
|
||||
int radius = (int) average_radius;
|
||||
|
||||
for (i = x - radius; i <= x + radius; i++)
|
||||
for (j = y - radius; j <= y + radius; j++)
|
||||
if ((tmp_color = (*get_color_func) (get_color_obj, i, j)))
|
||||
{
|
||||
count++;
|
||||
|
||||
color_avg[RED_PIX] += tmp_color[RED_PIX];
|
||||
color_avg[GREEN_PIX] += tmp_color[GREEN_PIX];
|
||||
color_avg[BLUE_PIX] += tmp_color[BLUE_PIX];
|
||||
if (has_alpha)
|
||||
color_avg[ALPHA_PIX] += tmp_color[3];
|
||||
|
||||
g_free(tmp_color);
|
||||
}
|
||||
|
||||
color[RED_PIX] = (guchar) (color_avg[RED_PIX] / count);
|
||||
color[GREEN_PIX] = (guchar) (color_avg[GREEN_PIX] / count);
|
||||
color[BLUE_PIX] = (guchar) (color_avg[BLUE_PIX] / count);
|
||||
if (has_alpha)
|
||||
color[ALPHA_PIX] = (guchar) (color_avg[3] / count);
|
||||
|
||||
is_indexed = FALSE;
|
||||
}
|
||||
|
||||
col_value[RED_PIX] = color[RED_PIX];
|
||||
col_value[GREEN_PIX] = color[GREEN_PIX];
|
||||
col_value[BLUE_PIX] = color[BLUE_PIX];
|
||||
if (has_alpha)
|
||||
{
|
||||
col_value [ALPHA_PIX] = color[3];
|
||||
}
|
||||
col_value[ALPHA_PIX] = color[3];
|
||||
if (is_indexed)
|
||||
col_value [4] = color[4];
|
||||
col_value[4] = color[4];
|
||||
|
||||
palette_set_active_color (col_value [RED_PIX], col_value [GREEN_PIX],
|
||||
col_value [BLUE_PIX], final);
|
||||
g_free(color);
|
||||
|
|
@ -551,7 +690,7 @@ color_picker_invoker (Argument *args)
|
|||
|
||||
/* call the color_picker procedure */
|
||||
if (success)
|
||||
success = get_color (gimage, drawable, (int) x, (int) y, sample_merged, save_color);
|
||||
success = get_color (gimage, drawable, (int) x, (int) y, sample_merged, FALSE, 1.0, save_color);
|
||||
|
||||
return_args = procedural_db_return_args (&color_picker_proc, success);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue