gint
color_history_add (const GimpRGB *rgb)
{
gint shift_begin = -1;
gint i, j;
g_return_val_if_fail (rgb != NULL, 0);
if (! color_history_initialized)
color_history_init ();
/* is the added color already there? */
for (i = 0; i < COLOR_HISTORY_SIZE; i++)
{
if (gimp_rgba_distance (&color_history[i], rgb) < 0.0001)
{
shift_begin = i;
goto doit;
}
}
/* if not, are there two equal colors? */
if (shift_begin == -1)
{
for (i = 0; i < COLOR_HISTORY_SIZE; i++)
{
for (j = i + 1; j < COLOR_HISTORY_SIZE; j++)
{
if (gimp_rgba_distance (&color_history[i],
&color_history[j]) < 0.0001)
{
shift_begin = i;
goto doit;
}
}
}
}
/* if not, shift them all */
if (shift_begin == -1)
shift_begin = COLOR_HISTORY_SIZE - 1;
doit:
for (i = shift_begin; i > 0; i--)
color_history[i] = color_history[i - 1];
color_history[0] = *rgb;
return shift_begin;
}
/**
* gimp_color_frame_set_color:
* @frame: The #GimpColorFrame.
* @sample_average: The set @color is the result of averaging
* @sample_format: The format of the #GimpDrawable or #GimpImage the @color
* was picked from.
* @pixel: The raw pixel in @sample_format.
* @color: The @color to set.
*
* Sets the color sample to display in the #GimpColorFrame. if
* @sample_average is %TRUE, @pixel represents the sample at the
* center of the average area and will not be displayed.
**/
void
gimp_color_frame_set_color (GimpColorFrame *frame,
gboolean sample_average,
const Babl *sample_format,
gpointer pixel,
const GimpRGB *color)
{
g_return_if_fail (GIMP_IS_COLOR_FRAME (frame));
g_return_if_fail (color != NULL);
if (frame->sample_valid &&
frame->sample_average == sample_average &&
frame->sample_format == sample_format &&
gimp_rgba_distance (&frame->color, color) < 0.0001)
{
frame->color = *color;
return;
}
frame->sample_valid = TRUE;
frame->sample_average = sample_average;
frame->sample_format = sample_format;
frame->color = *color;
memcpy (frame->pixel, pixel, babl_format_get_bytes_per_pixel (sample_format));
gimp_color_frame_update (frame);
}
static void
quick_mask_configure_callback (GtkWidget *dialog,
GimpImage *image,
GimpChannel *channel,
GimpContext *context,
const gchar *channel_name,
const GimpRGB *channel_color,
gboolean save_selection,
gboolean channel_visible,
gboolean channel_linked,
GimpColorTag channel_color_tag,
gboolean channel_lock_content,
gboolean channel_lock_position,
gpointer user_data)
{
GimpRGB old_color;
gimp_image_get_quick_mask_color (image, &old_color);
if (gimp_rgba_distance (&old_color, channel_color) > 0.0001)
{
gimp_image_set_quick_mask_color (image, channel_color);
gimp_image_flush (image);
}
gtk_widget_destroy (dialog);
}
static VALUE
rb_gimp_rgba_distance (VALUE self,
VALUE other)
{
gdouble result;
result = gimp_rgba_distance(rb2GimpRGBPtr(self),
rb2GimpRGBPtr(other));
return rb_float_new(result);
}
/**
* gimp_color_area_set_color:
* @area: Pointer to a #GimpColorArea.
* @color: Pointer to a #GimpRGB struct that defines the new color.
*
* Sets @area to a different @color.
**/
void
gimp_color_area_set_color (GimpColorArea *area,
const GimpRGB *color)
{
g_return_if_fail (GIMP_IS_COLOR_AREA (area));
g_return_if_fail (color != NULL);
if (gimp_rgba_distance (&area->color, color) < 0.000001)
return;
area->color = *color;
area->needs_render = TRUE;
gtk_widget_queue_draw (GTK_WIDGET (area));
g_object_notify (G_OBJECT (area), "color");
g_signal_emit (area, gimp_color_area_signals[COLOR_CHANGED], 0);
}
static void
gimp_color_panel_color_changed (GimpColorButton *button)
{
GimpColorPanel *panel = GIMP_COLOR_PANEL (button);
GimpRGB color;
if (panel->color_dialog)
{
GimpRGB dialog_color;
gimp_color_button_get_color (GIMP_COLOR_BUTTON (button), &color);
gimp_color_dialog_get_color (GIMP_COLOR_DIALOG (panel->color_dialog),
&dialog_color);
if (gimp_rgba_distance (&color, &dialog_color) > 0.00001 ||
color.a != dialog_color.a)
{
gimp_color_dialog_set_color (GIMP_COLOR_DIALOG (panel->color_dialog),
&color);
}
}
}
static gint
dialog (gint32 image_ID,
GimpDrawable *drawable)
{
GtkWidget *dlg;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkSizeGroup *group;
GtkWidget *label;
GtkWidget *preview;
GtkWidget *button;
GtkWidget *width;
GtkWidget *space;
GtkWidget *offset;
GtkWidget *chain_button;
GtkWidget *table;
GimpUnit unit;
gdouble xres;
gdouble yres;
gboolean run;
g_return_val_if_fail (main_dialog == NULL, FALSE);
gimp_ui_init (PLUG_IN_BINARY, TRUE);
main_dialog = dlg = gimp_dialog_new (_("Grid"), PLUG_IN_ROLE,
NULL, 0,
gimp_standard_help_func, PLUG_IN_PROC,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dlg),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gimp_window_set_transient (GTK_WINDOW (dlg));
/* Get the image resolution and unit */
gimp_image_get_resolution (image_ID, &xres, &yres);
unit = gimp_image_get_unit (image_ID);
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dlg))),
main_vbox, TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
preview = gimp_drawable_preview_new (drawable, NULL);
gtk_box_pack_start (GTK_BOX (main_vbox), preview, TRUE, TRUE, 0);
gtk_widget_show (preview);
g_signal_connect (preview, "invalidated",
G_CALLBACK (update_preview),
drawable);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_box_pack_start (GTK_BOX (main_vbox), vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
/* The width entries */
width = gimp_size_entry_new (3, /* number_of_fields */
unit, /* unit */
"%a", /* unit_format */
TRUE, /* menu_show_pixels */
TRUE, /* menu_show_percent */
FALSE, /* show_refval */
SPIN_BUTTON_WIDTH, /* spinbutton_usize */
GIMP_SIZE_ENTRY_UPDATE_SIZE); /* update_policy */
gtk_box_pack_start (GTK_BOX (vbox), width, FALSE, FALSE, 0);
gtk_widget_show (width);
/* set the unit back to pixels, since most times we will want pixels */
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (width), GIMP_UNIT_PIXEL);
/* set the resolution to the image resolution */
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (width), 0, xres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (width), 1, yres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (width), 2, xres, TRUE);
/* set the size (in pixels) that will be treated as 0% and 100% */
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (width), 0, 0.0, drawable->height);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (width), 1, 0.0, drawable->width);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (width), 2, 0.0, drawable->width);
/* set upper and lower limits (in pixels) */
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (width), 0, 0.0,
drawable->height);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (width), 1, 0.0,
drawable->width);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (width), 2, 0.0,
MAX (drawable->width,
drawable->height));
gtk_table_set_row_spacing (GTK_TABLE (width), 0, 6);
gtk_table_set_col_spacings (GTK_TABLE (width), 6);
gtk_table_set_col_spacing (GTK_TABLE (width), 2, 12);
/* initialize the values */
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (width), 0, grid_cfg.hwidth);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (width), 1, grid_cfg.vwidth);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (width), 2, grid_cfg.iwidth);
/* attach labels */
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Horizontal\nLines"),
0, 1, 0.0);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Vertical\nLines"),
0, 2, 0.0);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Intersection"),
0, 3, 0.0);
label = gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Width:"),
1, 0, 0.0);
group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
gtk_size_group_add_widget (group, label);
g_object_unref (group);
/* put a chain_button under the size_entries */
chain_button = gimp_chain_button_new (GIMP_CHAIN_BOTTOM);
if (grid_cfg.hwidth == grid_cfg.vwidth)
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain_button), TRUE);
gtk_table_attach_defaults (GTK_TABLE (width), chain_button, 1, 3, 2, 3);
gtk_widget_show (chain_button);
/* connect to the 'value-changed' signal because we have to take care
* of keeping the entries in sync when the chainbutton is active
*/
g_signal_connect (width, "value-changed",
G_CALLBACK (entry_callback),
chain_button);
g_signal_connect_swapped (width, "value-changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
/* The spacing entries */
space = gimp_size_entry_new (3, /* number_of_fields */
unit, /* unit */
"%a", /* unit_format */
TRUE, /* menu_show_pixels */
TRUE, /* menu_show_percent */
FALSE, /* show_refval */
SPIN_BUTTON_WIDTH, /* spinbutton_usize */
GIMP_SIZE_ENTRY_UPDATE_SIZE); /* update_policy */
gtk_box_pack_start (GTK_BOX (vbox), space, FALSE, FALSE, 0);
gtk_widget_show (space);
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (space), GIMP_UNIT_PIXEL);
/* set the resolution to the image resolution */
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (space), 0, xres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (space), 1, yres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (space), 2, xres, TRUE);
/* set the size (in pixels) that will be treated as 0% and 100% */
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (space), 0, 0.0, drawable->height);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (space), 1, 0.0, drawable->width);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (space), 2, 0.0, drawable->width);
/* set upper and lower limits (in pixels) */
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (space), 0, 1.0,
drawable->height);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (space), 1, 1.0,
drawable->width);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (space), 2, 0.0,
MAX (drawable->width,
drawable->height));
gtk_table_set_col_spacings (GTK_TABLE (space), 6);
gtk_table_set_col_spacing (GTK_TABLE (space), 2, 12);
/* initialize the values */
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (space), 0, grid_cfg.hspace);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (space), 1, grid_cfg.vspace);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (space), 2, grid_cfg.ispace);
/* attach labels */
label = gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (space), _("Spacing:"),
1, 0, 0.0);
gtk_size_group_add_widget (group, label);
/* put a chain_button under the spacing_entries */
chain_button = gimp_chain_button_new (GIMP_CHAIN_BOTTOM);
if (grid_cfg.hspace == grid_cfg.vspace)
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain_button), TRUE);
gtk_table_attach_defaults (GTK_TABLE (space), chain_button, 1, 3, 2, 3);
gtk_widget_show (chain_button);
/* connect to the 'value-changed' and "unit-changed" signals because
* we have to take care of keeping the entries in sync when the
* chainbutton is active
*/
g_signal_connect (space, "value-changed",
G_CALLBACK (entry_callback),
chain_button);
g_signal_connect (space, "unit-changed",
G_CALLBACK (entry_callback),
chain_button);
g_signal_connect_swapped (space, "value-changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
/* The offset entries */
offset = gimp_size_entry_new (3, /* number_of_fields */
unit, /* unit */
"%a", /* unit_format */
TRUE, /* menu_show_pixels */
TRUE, /* menu_show_percent */
FALSE, /* show_refval */
SPIN_BUTTON_WIDTH, /* spinbutton_usize */
GIMP_SIZE_ENTRY_UPDATE_SIZE); /* update_policy */
gtk_box_pack_start (GTK_BOX (vbox), offset, FALSE, FALSE, 0);
gtk_widget_show (offset);
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (offset), GIMP_UNIT_PIXEL);
/* set the resolution to the image resolution */
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (offset), 0, xres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (offset), 1, yres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (offset), 2, xres, TRUE);
/* set the size (in pixels) that will be treated as 0% and 100% */
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (offset), 0, 0.0, drawable->height);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (offset), 1, 0.0, drawable->width);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (offset), 2, 0.0, drawable->width);
/* set upper and lower limits (in pixels) */
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (offset), 0, 0.0,
drawable->height);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (offset), 1, 0.0,
drawable->width);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (offset), 2, 0.0,
MAX (drawable->width,
drawable->height));
gtk_table_set_col_spacings (GTK_TABLE (offset), 6);
gtk_table_set_col_spacing (GTK_TABLE (offset), 2, 12);
/* initialize the values */
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (offset), 0, grid_cfg.hoffset);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (offset), 1, grid_cfg.voffset);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (offset), 2, grid_cfg.ioffset);
/* attach labels */
label = gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (offset), _("Offset:"),
1, 0, 0.0);
gtk_size_group_add_widget (group, label);
/* this is a weird hack: we put a table into the offset table */
table = gtk_table_new (3, 3, FALSE);
gtk_table_attach_defaults (GTK_TABLE (offset), table, 1, 4, 2, 3);
gtk_table_set_row_spacing (GTK_TABLE (table), 0, 10);
gtk_table_set_col_spacing (GTK_TABLE (table), 1, 12);
/* put a chain_button under the offset_entries */
chain_button = gimp_chain_button_new (GIMP_CHAIN_BOTTOM);
if (grid_cfg.hoffset == grid_cfg.voffset)
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain_button), TRUE);
gtk_table_attach_defaults (GTK_TABLE (table), chain_button, 0, 2, 0, 1);
gtk_widget_show (chain_button);
/* connect to the 'value-changed' and "unit-changed" signals because
* we have to take care of keeping the entries in sync when the
* chainbutton is active
*/
g_signal_connect (offset, "value-changed",
G_CALLBACK (entry_callback),
chain_button);
g_signal_connect (offset, "unit-changed",
G_CALLBACK (entry_callback),
chain_button);
g_signal_connect_swapped (offset, "value-changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
/* put a chain_button under the color_buttons */
chain_button = gimp_chain_button_new (GIMP_CHAIN_BOTTOM);
if (gimp_rgba_distance (&grid_cfg.hcolor, &grid_cfg.vcolor) < 0.0001)
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain_button), TRUE);
gtk_table_attach_defaults (GTK_TABLE (table), chain_button, 0, 2, 2, 3);
gtk_widget_show (chain_button);
/* attach color selectors */
hcolor_button = gimp_color_button_new (_("Horizontal Color"),
COLOR_BUTTON_WIDTH, 16,
&grid_cfg.hcolor,
GIMP_COLOR_AREA_SMALL_CHECKS);
gimp_color_button_set_update (GIMP_COLOR_BUTTON (hcolor_button), TRUE);
gtk_table_attach_defaults (GTK_TABLE (table), hcolor_button, 0, 1, 1, 2);
gtk_widget_show (hcolor_button);
g_signal_connect (hcolor_button, "color-changed",
G_CALLBACK (gimp_color_button_get_color),
&grid_cfg.hcolor);
g_signal_connect (hcolor_button, "color-changed",
G_CALLBACK (color_callback),
chain_button);
g_signal_connect_swapped (hcolor_button, "color-changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
vcolor_button = gimp_color_button_new (_("Vertical Color"),
COLOR_BUTTON_WIDTH, 16,
&grid_cfg.vcolor,
GIMP_COLOR_AREA_SMALL_CHECKS);
gimp_color_button_set_update (GIMP_COLOR_BUTTON (vcolor_button), TRUE);
gtk_table_attach_defaults (GTK_TABLE (table), vcolor_button, 1, 2, 1, 2);
gtk_widget_show (vcolor_button);
g_signal_connect (vcolor_button, "color-changed",
G_CALLBACK (gimp_color_button_get_color),
&grid_cfg.vcolor);
g_signal_connect (vcolor_button, "color-changed",
G_CALLBACK (color_callback),
chain_button);
g_signal_connect_swapped (vcolor_button, "color-changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
button = gimp_color_button_new (_("Intersection Color"),
COLOR_BUTTON_WIDTH, 16,
&grid_cfg.icolor,
GIMP_COLOR_AREA_SMALL_CHECKS);
gimp_color_button_set_update (GIMP_COLOR_BUTTON (button), TRUE);
gtk_table_attach_defaults (GTK_TABLE (table), button, 2, 3, 1, 2);
gtk_widget_show (button);
g_signal_connect (button, "color-changed",
G_CALLBACK (gimp_color_button_get_color),
&grid_cfg.icolor);
g_signal_connect_swapped (button, "color-changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_widget_show (table);
gtk_widget_show (dlg);
g_object_set_data (G_OBJECT (dlg), "width", width);
g_object_set_data (G_OBJECT (dlg), "space", space);
g_object_set_data (G_OBJECT (dlg), "offset", offset);
run = (gimp_dialog_run (GIMP_DIALOG (dlg)) == GTK_RESPONSE_OK);
if (run)
update_values ();
gtk_widget_destroy (dlg);
return run;
}
