/*
* gfig_read_gimp_style() reads the style settings from the Gimp core,
* and applies them to the specified style, giving that style the
* specified name. This is mainly useful as a way of initializing
* a style. The function does not cause a repaint.
*/
void
gfig_read_gimp_style (Style *style,
const gchar *name)
{
gint dummy;
if (!name)
g_message ("Error: name is NULL in gfig_read_gimp_style.");
if (gfig_context->debug_styles)
g_printerr ("Reading Gimp settings as style %s\n", name);
style->name = g_strdup (name);
gimp_context_get_foreground (&style->foreground);
gimp_context_get_background (&style->background);
style->brush_name = gimp_context_get_brush ();
gimp_brush_get_info (style->brush_name,
&style->brush_width, &style->brush_height,
&dummy, &dummy);
gimp_brush_get_spacing (style->brush_name, &style->brush_spacing);
style->gradient = gimp_context_get_gradient ();
style->pattern = gimp_context_get_pattern ();
style->fill_opacity = 100.;
gfig_context->bdesc.name = style->brush_name;
gfig_context->bdesc.width = style->brush_width;
gfig_context->bdesc.height = style->brush_height;
}
gboolean
gimp_paint_options_get_gradient_color (GimpPaintOptions *paint_options,
GimpImage *image,
gdouble grad_point,
gdouble pixel_dist,
GimpRGB *color)
{
GimpDynamics *dynamics;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
g_return_val_if_fail (color != NULL, FALSE);
dynamics = gimp_context_get_dynamics (GIMP_CONTEXT (paint_options));
if (gimp_dynamics_is_output_enabled (dynamics, GIMP_DYNAMICS_OUTPUT_COLOR))
{
GimpGradientOptions *gradient_options = paint_options->gradient_options;
GimpGradient *gradient;
gradient = gimp_context_get_gradient (GIMP_CONTEXT (paint_options));
gimp_gradient_get_color_at (gradient, GIMP_CONTEXT (paint_options),
NULL, grad_point,
gradient_options->gradient_reverse,
color);
return TRUE;
}
return FALSE;
}
static GValueArray *
gradients_sample_uniform_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GValueArray *args,
GError **error)
{
gboolean success = TRUE;
GValueArray *return_vals;
gint32 num_samples;
gboolean reverse;
gint32 array_length = 0;
gdouble *color_samples = NULL;
num_samples = g_value_get_int (&args->values[0]);
reverse = g_value_get_boolean (&args->values[1]);
if (success)
{
GimpGradient *gradient;
GimpGradientSegment *seg = NULL;
gdouble pos, delta;
GimpRGB color;
gdouble *pv;
pos = 0.0;
delta = 1.0 / (num_samples - 1);
array_length = num_samples * 4;
pv = color_samples = g_new (gdouble, array_length);
gradient = gimp_context_get_gradient (context);
while (num_samples--)
{
seg = gimp_gradient_get_color_at (gradient, context, seg,
pos, reverse, &color);
*pv++ = color.r;
*pv++ = color.g;
*pv++ = color.b;
*pv++ = color.a;
pos += delta;
}
}
return_vals = gimp_procedure_get_return_values (procedure, success,
error ? *error : NULL);
if (success)
{
g_value_set_int (&return_vals->values[1], array_length);
gimp_value_take_floatarray (&return_vals->values[2], color_samples, array_length);
}
return return_vals;
}
/*
Returns NGRADSAMPLES samples of active gradient.
Each sample has (gimp_drawable_bpp (drawable_id)) bytes.
"ripped" from gradmap.c.
*/
static guchar *
get_gradient_samples (gint32 drawable_id,
gboolean reverse)
{
gchar *gradient_name;
gint n_f_samples;
gdouble *f_samples, *f_samp; /* float samples */
guchar *b_samples, *b_samp; /* byte samples */
gint bpp, color, has_alpha, alpha;
gint i, j;
gradient_name = gimp_context_get_gradient ();
gimp_gradient_get_uniform_samples (gradient_name, NGRADSAMPLES, reverse,
&n_f_samples, &f_samples);
g_free (gradient_name);
bpp = gimp_drawable_bpp (drawable_id);
color = gimp_drawable_is_rgb (drawable_id);
has_alpha = gimp_drawable_has_alpha (drawable_id);
alpha = (has_alpha ? bpp - 1 : bpp);
b_samples = g_new (guchar, NGRADSAMPLES * bpp);
for (i = 0; i < NGRADSAMPLES; i++)
{
b_samp = &b_samples[i * bpp];
f_samp = &f_samples[i * 4];
if (color)
for (j = 0; j < 3; j++)
b_samp[j] = f_samp[j] * 255;
else
b_samp[0] = GIMP_RGB_LUMINANCE (f_samp[0], f_samp[1], f_samp[2]) * 255;
if (has_alpha)
b_samp[alpha] = f_samp[3] * 255;
}
g_free (f_samples);
return b_samples;
}
static gboolean
gimp_blend_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpImage *image = gimp_display_get_image (display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
GimpBlendOptions *options = GIMP_BLEND_TOOL_GET_OPTIONS (tool);
if (! GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error))
{
return FALSE;
}
if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable)))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("Cannot modify the pixels of layer groups."));
return FALSE;
}
if (gimp_item_is_content_locked (GIMP_ITEM (drawable)))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("The active layer's pixels are locked."));
return FALSE;
}
if (! gimp_item_is_visible (GIMP_ITEM (drawable)))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("The active layer is not visible."));
return FALSE;
}
if (! gimp_context_get_gradient (GIMP_CONTEXT (options)))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("No gradient available for use with this tool."));
return FALSE;
}
return TRUE;
}
static void
gimp_blend_tool_commit (GimpBlendTool *blend_tool)
{
GimpTool *tool = GIMP_TOOL (blend_tool);
GimpBlendOptions *options = GIMP_BLEND_TOOL_GET_OPTIONS (tool);
GimpPaintOptions *paint_options = GIMP_PAINT_OPTIONS (options);
GimpContext *context = GIMP_CONTEXT (options);
GimpImage *image = gimp_display_get_image (tool->display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
GimpProgress *progress;
gint off_x;
gint off_y;
progress = gimp_progress_start (GIMP_PROGRESS (tool), FALSE,
_("Blending"));
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
gimp_drawable_blend (drawable,
context,
gimp_context_get_gradient (context),
gimp_context_get_paint_mode (context),
options->gradient_type,
gimp_context_get_opacity (context),
options->offset,
paint_options->gradient_options->gradient_repeat,
paint_options->gradient_options->gradient_reverse,
options->supersample,
options->supersample_depth,
options->supersample_threshold,
options->dither,
blend_tool->start_x - off_x,
blend_tool->start_y - off_y,
blend_tool->end_x - off_x,
blend_tool->end_y - off_y,
progress);
if (progress)
gimp_progress_end (progress);
gimp_image_flush (image);
}
static void
palette_import_grad_callback (GtkWidget *widget,
ImportDialog *dialog)
{
GimpGradient *gradient;
if (! gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
return;
dialog->import_type = GRADIENT_IMPORT;
gradient = gimp_context_get_gradient (dialog->context);
gtk_entry_set_text (GTK_ENTRY (dialog->entry),
gimp_object_get_name (gradient));
palette_import_set_sensitive (dialog);
palette_import_make_palette (dialog);
}
/*
Returns 2048 samples of the gradient.
Each sample is (R'G'B'A float) or (Y'A float), depending on the drawable
*/
static gdouble *
get_samples_gradient (gint32 drawable_id)
{
gchar *gradient_name;
gint n_d_samples;
gdouble *d_samples = NULL;
gradient_name = gimp_context_get_gradient ();
/* FIXME: "reverse" hardcoded to FALSE. */
gimp_gradient_get_uniform_samples (gradient_name, NSAMPLES, FALSE,
&n_d_samples, &d_samples);
g_free (gradient_name);
if (!gimp_drawable_is_rgb (drawable_id))
{
const Babl *format_src = babl_format ("R'G'B'A double");
const Babl *format_dst = babl_format ("Y'A double");
const Babl *fish = babl_fish (format_src, format_dst);
babl_process (fish, d_samples, d_samples, NSAMPLES);
}
return d_samples;
}
static void
palette_import_make_palette (ImportDialog *dialog)
{
GimpPalette *palette = NULL;
const gchar *palette_name;
gint n_colors;
gint n_columns;
gint threshold;
palette_name = gtk_entry_get_text (GTK_ENTRY (dialog->entry));
if (! palette_name || ! strlen (palette_name))
palette_name = _("Untitled");
n_colors = ROUND (gtk_adjustment_get_value (dialog->num_colors));
n_columns = ROUND (gtk_adjustment_get_value (dialog->columns));
threshold = ROUND (gtk_adjustment_get_value (dialog->threshold));
switch (dialog->import_type)
{
case GRADIENT_IMPORT:
{
GimpGradient *gradient;
gradient = gimp_context_get_gradient (dialog->context);
palette = gimp_palette_import_from_gradient (gradient,
dialog->context,
FALSE,
palette_name,
n_colors);
}
break;
case IMAGE_IMPORT:
{
GimpImage *image = gimp_context_get_image (dialog->context);
gboolean sample_merged;
gboolean selection_only;
sample_merged =
gtk_toggle_button_get_active
(GTK_TOGGLE_BUTTON (dialog->sample_merged_toggle));
selection_only =
gtk_toggle_button_get_active
(GTK_TOGGLE_BUTTON (dialog->selection_only_toggle));
if (gimp_image_get_base_type (image) == GIMP_INDEXED)
{
palette = gimp_palette_import_from_indexed_image (image,
dialog->context,
palette_name);
}
else if (sample_merged)
{
palette = gimp_palette_import_from_image (image,
dialog->context,
palette_name,
n_colors,
threshold,
selection_only);
}
else
{
GimpDrawable *drawable;
drawable = GIMP_DRAWABLE (gimp_image_get_active_layer (image));
palette = gimp_palette_import_from_drawable (drawable,
dialog->context,
palette_name,
n_colors,
threshold,
selection_only);
}
}
break;
case FILE_IMPORT:
{
GFile *file;
GError *error = NULL;
file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog->file_chooser));
palette = gimp_palette_import_from_file (dialog->context,
file,
palette_name, &error);
g_object_unref (file);
if (! palette)
{
gimp_message_literal (dialog->context->gimp,
G_OBJECT (dialog->dialog), GIMP_MESSAGE_ERROR,
error->message);
g_error_free (error);
}
}
break;
}
if (palette)
{
if (dialog->palette)
g_object_unref (dialog->palette);
gimp_palette_set_columns (palette, n_columns);
gimp_view_set_viewable (GIMP_VIEW (dialog->preview),
GIMP_VIEWABLE (palette));
dialog->palette = palette;
}
gtk_widget_set_visible (dialog->no_colors_label,
dialog->palette &&
gimp_palette_get_n_colors (dialog->palette) > 0);
}
GtkWidget *
palette_import_dialog_new (GimpContext *context)
{
ImportDialog *dialog;
GimpGradient *gradient;
GtkWidget *button;
GtkWidget *main_hbox;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *abox;
GtkSizeGroup *size_group;
GSList *group = NULL;
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
gradient = gimp_context_get_gradient (context);
dialog = g_slice_new0 (ImportDialog);
dialog->import_type = GRADIENT_IMPORT;
dialog->context = gimp_context_new (context->gimp, "Palette Import",
context);
dialog->dialog = gimp_dialog_new (_("Import a New Palette"),
"gimp-palette-import", NULL, 0,
gimp_standard_help_func,
GIMP_HELP_PALETTE_IMPORT,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
NULL);
button = gtk_dialog_add_button (GTK_DIALOG (dialog->dialog),
_("_Import"), GTK_RESPONSE_OK);
gtk_button_set_image (GTK_BUTTON (button),
gtk_image_new_from_icon_name ("gtk-convert",
GTK_ICON_SIZE_BUTTON));
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog->dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
g_object_set_data_full (G_OBJECT (dialog->dialog), "palette-import-dialog",
dialog, (GDestroyNotify) palette_import_free);
g_signal_connect (dialog->dialog, "response",
G_CALLBACK (palette_import_response),
dialog);
gimp_dnd_viewable_dest_add (dialog->dialog,
GIMP_TYPE_GRADIENT,
import_dialog_drop_callback,
dialog);
gimp_dnd_viewable_dest_add (dialog->dialog,
GIMP_TYPE_IMAGE,
import_dialog_drop_callback,
dialog);
main_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_hbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog->dialog))),
main_hbox, TRUE, TRUE, 0);
gtk_widget_show (main_hbox);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_box_pack_start (GTK_BOX (main_hbox), vbox, TRUE, TRUE, 0);
gtk_widget_show (vbox);
/* The "Source" frame */
frame = gimp_frame_new (_("Select Source"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
table = gtk_table_new (5, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
dialog->gradient_radio =
gtk_radio_button_new_with_mnemonic (group, _("_Gradient"));
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (dialog->gradient_radio));
gtk_table_attach (GTK_TABLE (table), dialog->gradient_radio,
0, 1, 0, 1, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (dialog->gradient_radio);
g_signal_connect (dialog->gradient_radio, "toggled",
G_CALLBACK (palette_import_grad_callback),
dialog);
dialog->image_radio =
gtk_radio_button_new_with_mnemonic (group, _("I_mage"));
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (dialog->image_radio));
gtk_table_attach (GTK_TABLE (table), dialog->image_radio,
0, 1, 1, 2, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (dialog->image_radio);
g_signal_connect (dialog->image_radio, "toggled",
G_CALLBACK (palette_import_image_callback),
dialog);
gtk_widget_set_sensitive (dialog->image_radio,
! gimp_container_is_empty (context->gimp->images));
dialog->sample_merged_toggle =
gtk_check_button_new_with_mnemonic (_("Sample _Merged"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (dialog->sample_merged_toggle),
TRUE);
gtk_table_attach (GTK_TABLE (table), dialog->sample_merged_toggle,
1, 2, 2, 3, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (dialog->sample_merged_toggle);
g_signal_connect_swapped (dialog->sample_merged_toggle, "toggled",
G_CALLBACK (palette_import_make_palette),
dialog);
dialog->selection_only_toggle =
gtk_check_button_new_with_mnemonic (_("_Selected Pixels only"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (dialog->selection_only_toggle),
FALSE);
gtk_table_attach (GTK_TABLE (table), dialog->selection_only_toggle,
1, 2, 3, 4, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (dialog->selection_only_toggle);
g_signal_connect_swapped (dialog->selection_only_toggle, "toggled",
G_CALLBACK (palette_import_make_palette),
dialog);
dialog->file_radio =
gtk_radio_button_new_with_mnemonic (group, _("Palette _file"));
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (dialog->image_radio));
gtk_table_attach (GTK_TABLE (table), dialog->file_radio,
0, 1, 4, 5, GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (dialog->file_radio);
g_signal_connect (dialog->file_radio, "toggled",
G_CALLBACK (palette_import_file_callback),
dialog);
size_group = gtk_size_group_new (GTK_SIZE_GROUP_VERTICAL);
/* The gradient menu */
dialog->gradient_combo =
gimp_container_combo_box_new (gimp_data_factory_get_container (context->gimp->gradient_factory),
dialog->context, 24, 1);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
NULL, 0.0, 0.5, dialog->gradient_combo, 1, FALSE);
gtk_size_group_add_widget (size_group, dialog->gradient_combo);
/* The image menu */
dialog->image_combo =
gimp_container_combo_box_new (context->gimp->images, dialog->context,
24, 1);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
NULL, 0.0, 0.5, dialog->image_combo, 1, FALSE);
gtk_size_group_add_widget (size_group, dialog->image_combo);
/* Palette file name entry */
dialog->file_chooser = gtk_file_chooser_button_new (_("Select Palette File"),
GTK_FILE_CHOOSER_ACTION_OPEN);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 4,
NULL, 0.0, 0.5, dialog->file_chooser, 1, FALSE);
gtk_size_group_add_widget (size_group, dialog->file_chooser);
g_object_unref (size_group);
/* The "Import" frame */
frame = gimp_frame_new (_("Import Options"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
table = gtk_table_new (4, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
/* The source's name */
dialog->entry = gtk_entry_new ();
gtk_entry_set_text (GTK_ENTRY (dialog->entry),
gradient ?
gimp_object_get_name (gradient) : _("New import"));
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Palette _name:"), 0.0, 0.5,
dialog->entry, 2, FALSE);
/* The # of colors */
dialog->num_colors =
GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
_("N_umber of colors:"), -1, 5,
256, 2, 10000, 1, 10, 0,
TRUE, 0.0, 0.0,
NULL, NULL));
g_signal_connect_swapped (dialog->num_colors,
"value-changed",
G_CALLBACK (palette_import_make_palette),
dialog);
/* The columns */
dialog->columns =
GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
_("C_olumns:"), -1, 5,
16, 0, 64, 1, 8, 0,
TRUE, 0.0, 0.0,
NULL, NULL));
g_signal_connect (dialog->columns, "value-changed",
G_CALLBACK (palette_import_columns_changed),
dialog);
/* The interval */
dialog->threshold =
GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (table), 0, 3,
_("I_nterval:"), -1, 5,
1, 1, 128, 1, 8, 0,
TRUE, 0.0, 0.0,
NULL, NULL));
g_signal_connect_swapped (dialog->threshold, "value-changed",
G_CALLBACK (palette_import_make_palette),
dialog);
/* The "Preview" frame */
frame = gimp_frame_new (_("Preview"));
gtk_box_pack_start (GTK_BOX (main_hbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
abox = gtk_alignment_new (0.0, 0.0, 0.0, 0.0);
gtk_box_pack_start (GTK_BOX (vbox), abox, FALSE, FALSE, 0);
gtk_widget_show (abox);
dialog->preview = gimp_view_new_full_by_types (dialog->context,
GIMP_TYPE_VIEW,
GIMP_TYPE_PALETTE,
192, 192, 1,
TRUE, FALSE, FALSE);
gtk_container_add (GTK_CONTAINER (abox), dialog->preview);
gtk_widget_show (dialog->preview);
dialog->no_colors_label =
gtk_label_new (_("The selected source contains no colors."));
gtk_widget_set_size_request (dialog->no_colors_label, 194, -1);
gtk_label_set_line_wrap (GTK_LABEL (dialog->no_colors_label), TRUE);
gimp_label_set_attributes (GTK_LABEL (dialog->no_colors_label),
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
gtk_box_pack_start (GTK_BOX (vbox), dialog->no_colors_label, FALSE, FALSE, 0);
gtk_widget_show (dialog->no_colors_label);
/* keep the dialog up-to-date */
g_signal_connect (context->gimp->images, "add",
G_CALLBACK (palette_import_image_add),
dialog);
g_signal_connect (context->gimp->images, "remove",
G_CALLBACK (palette_import_image_remove),
dialog);
g_signal_connect (dialog->context, "gradient-changed",
G_CALLBACK (palette_import_gradient_changed),
dialog);
g_signal_connect (dialog->context, "image-changed",
G_CALLBACK (palette_import_image_changed),
dialog);
g_signal_connect (dialog->file_chooser, "selection-changed",
G_CALLBACK (palette_import_filename_changed),
dialog);
palette_import_grad_callback (dialog->gradient_radio, dialog);
return dialog->dialog;
}
/**
* gimp_gradients_get_gradient:
*
* This procedure is deprecated! Use gimp_context_get_gradient() instead.
*
* Returns: The name of the active gradient.
*/
gchar *
gimp_gradients_get_gradient (void)
{
return gimp_context_get_gradient ();
}
void
gradients_save_as_pov_ray_cmd_callback (GtkAction *action,
gpointer data)
{
GimpContainerEditor *editor = GIMP_CONTAINER_EDITOR (data);
GimpContext *context;
GimpGradient *gradient;
GtkWidget *dialog;
context = gimp_container_view_get_context (editor->view);
gradient = gimp_context_get_gradient (context);
if (! gradient)
return;
#define SAVE_AS_POV_DIALOG_KEY "gimp-save-as-pov-ray-dialog"
dialog = dialogs_get_dialog (G_OBJECT (gradient), SAVE_AS_POV_DIALOG_KEY);
if (! dialog)
{
gchar *title = g_strdup_printf (_("Save '%s' as POV-Ray"),
gimp_object_get_name (gradient));
dialog = gtk_file_chooser_dialog_new (title, NULL,
GTK_FILE_CHOOSER_ACTION_SAVE,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_Save"), GTK_RESPONSE_OK,
NULL);
g_free (title);
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
gimp_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
g_object_set_data (G_OBJECT (dialog), "gimp", context->gimp);
gtk_window_set_screen (GTK_WINDOW (dialog),
gtk_widget_get_screen (GTK_WIDGET (editor)));
gtk_window_set_role (GTK_WINDOW (dialog), "gimp-gradient-save-pov");
gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_MOUSE);
gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog),
TRUE);
g_signal_connect (dialog, "response",
G_CALLBACK (gradients_save_as_pov_ray_response),
gradient);
g_signal_connect (dialog, "delete-event",
G_CALLBACK (gtk_true),
NULL);
g_signal_connect_object (dialog, "destroy",
G_CALLBACK (g_object_unref),
g_object_ref (gradient),
G_CONNECT_SWAPPED);
gimp_help_connect (dialog, gimp_standard_help_func,
GIMP_HELP_GRADIENT_SAVE_AS_POV, NULL);
dialogs_attach_dialog (G_OBJECT (gradient),
SAVE_AS_POV_DIALOG_KEY, dialog);
}
gtk_window_present (GTK_WINDOW (dialog));
}
gboolean
gimp_paint_options_get_gradient_color (GimpPaintOptions *paint_options,
GimpImage *image,
gdouble grad_point,
gdouble pixel_dist,
GimpRGB *color)
{
GimpGradientOptions *gradient_options;
GimpGradient *gradient;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
g_return_val_if_fail (color != NULL, FALSE);
gradient_options = paint_options->gradient_options;
gradient = gimp_context_get_gradient (GIMP_CONTEXT (paint_options));
if (paint_options->pressure_options->color ||
paint_options->velocity_options->color ||
paint_options->random_options->color)
{
gimp_gradient_get_color_at (gradient, GIMP_CONTEXT (paint_options),
NULL, grad_point,
gradient_options->gradient_reverse,
color);
return TRUE;
}
else if (gradient_options->use_gradient)
{
gdouble gradient_length = 0.0;
gdouble unit_factor;
gdouble pos;
switch (gradient_options->gradient_unit)
{
case GIMP_UNIT_PIXEL:
gradient_length = gradient_options->gradient_length;
break;
case GIMP_UNIT_PERCENT:
gradient_length = (MAX (gimp_image_get_width (image),
gimp_image_get_height (image)) *
gradient_options->gradient_length / 100);
break;
default:
{
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
unit_factor = gimp_unit_get_factor (gradient_options->gradient_unit);
gradient_length = (gradient_options->gradient_length *
MAX (xres, yres) / unit_factor);
}
break;
}
if (gradient_length > 0.0)
pos = pixel_dist / gradient_length;
else
pos = 1.0;
/* for no repeat, set pos close to 1.0 after the first chunk */
if (gradient_options->gradient_repeat == GIMP_REPEAT_NONE && pos >= 1.0)
pos = 0.9999999;
if (((gint) pos & 1) &&
gradient_options->gradient_repeat != GIMP_REPEAT_SAWTOOTH)
pos = 1.0 - (pos - (gint) pos);
else
pos = pos - (gint) pos;
gimp_gradient_get_color_at (gradient, GIMP_CONTEXT (paint_options),
NULL, pos,
gradient_options->gradient_reverse,
color);
return TRUE;
}
return FALSE;
}
GtkWidget *
gimp_toolbox_indicator_area_create (GimpToolbox *toolbox)
{
GimpContext *context;
GtkWidget *indicator_table;
GtkWidget *brush_view;
GtkWidget *pattern_view;
GtkWidget *gradient_view;
g_return_val_if_fail (GIMP_IS_TOOLBOX (toolbox), NULL);
context = GIMP_DOCK (toolbox)->context;
indicator_table = gtk_table_new (2, 2, FALSE);
gtk_table_set_row_spacings (GTK_TABLE (indicator_table), CELL_SPACING);
gtk_table_set_col_spacings (GTK_TABLE (indicator_table), CELL_SPACING);
/* brush view */
brush_view =
gimp_view_new_full_by_types (context,
GIMP_TYPE_VIEW, GIMP_TYPE_BRUSH,
CELL_SIZE, CELL_SIZE, 1,
FALSE, TRUE, TRUE);
gimp_view_set_viewable (GIMP_VIEW (brush_view),
GIMP_VIEWABLE (gimp_context_get_brush (context)));
gtk_table_attach_defaults (GTK_TABLE (indicator_table), brush_view,
0, 1, 0, 1);
gtk_widget_show (brush_view);
gimp_help_set_help_data (brush_view,
_("The active brush.\n"
"Click to open the Brush Dialog."), NULL);
g_signal_connect_object (context, "brush-changed",
G_CALLBACK (gimp_view_set_viewable),
brush_view,
G_CONNECT_SWAPPED);
g_signal_connect (brush_view, "clicked",
G_CALLBACK (brush_preview_clicked),
toolbox);
gimp_dnd_viewable_dest_add (brush_view,
GIMP_TYPE_BRUSH,
brush_preview_drop_brush,
context);
/* pattern view */
pattern_view =
gimp_view_new_full_by_types (context,
GIMP_TYPE_VIEW, GIMP_TYPE_PATTERN,
CELL_SIZE, CELL_SIZE, 1,
FALSE, TRUE, TRUE);
gimp_view_set_viewable (GIMP_VIEW (pattern_view),
GIMP_VIEWABLE (gimp_context_get_pattern (context)));
gtk_table_attach_defaults (GTK_TABLE (indicator_table), pattern_view,
1, 2, 0, 1);
gtk_widget_show (pattern_view);
gimp_help_set_help_data (pattern_view,
_("The active pattern.\n"
"Click to open the Pattern Dialog."), NULL);
g_signal_connect_object (context, "pattern-changed",
G_CALLBACK (gimp_view_set_viewable),
pattern_view,
G_CONNECT_SWAPPED);
g_signal_connect (pattern_view, "clicked",
G_CALLBACK (pattern_preview_clicked),
toolbox);
gimp_dnd_viewable_dest_add (pattern_view,
GIMP_TYPE_PATTERN,
pattern_preview_drop_pattern,
context);
/* gradient view */
gradient_view =
gimp_view_new_full_by_types (context,
GIMP_TYPE_VIEW, GIMP_TYPE_GRADIENT,
GRAD_CELL_WIDTH, GRAD_CELL_HEIGHT, 1,
FALSE, TRUE, TRUE);
gimp_view_set_viewable (GIMP_VIEW (gradient_view),
GIMP_VIEWABLE (gimp_context_get_gradient (context)));
gtk_table_attach_defaults (GTK_TABLE (indicator_table), gradient_view,
0, 2, 1, 2);
gtk_widget_show (gradient_view);
gimp_help_set_help_data (gradient_view,
_("The active gradient.\n"
"Click to open the Gradient Dialog."), NULL);
g_signal_connect_object (context, "gradient-changed",
G_CALLBACK (gimp_view_set_viewable),
gradient_view,
G_CONNECT_SWAPPED);
g_signal_connect (gradient_view, "clicked",
G_CALLBACK (gradient_preview_clicked),
toolbox);
gimp_dnd_viewable_dest_add (gradient_view,
GIMP_TYPE_GRADIENT,
gradient_preview_drop_gradient,
context);
gtk_widget_show (indicator_table);
return indicator_table;
}
static GValueArray *
gradients_get_gradient_data_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GValueArray *args,
GError **error)
{
gboolean success = TRUE;
GValueArray *return_vals;
const gchar *name;
gint32 sample_size;
gboolean reverse;
gchar *actual_name = NULL;
gint32 width = 0;
gdouble *grad_data = NULL;
name = g_value_get_string (&args->values[0]);
sample_size = g_value_get_int (&args->values[1]);
reverse = g_value_get_boolean (&args->values[2]);
if (success)
{
GimpGradient *gradient;
if (sample_size < 1 || sample_size > 10000)
sample_size = GIMP_GRADIENT_DEFAULT_SAMPLE_SIZE;
if (name && strlen (name))
gradient = gimp_pdb_get_gradient (gimp, name, FALSE, error);
else
gradient = gimp_context_get_gradient (context);
if (gradient)
{
GimpGradientSegment *seg = NULL;
gdouble *pv;
gdouble pos, delta;
GimpRGB color;
pos = 0.0;
delta = 1.0 / (sample_size - 1);
actual_name = g_strdup (gimp_object_get_name (GIMP_OBJECT (gradient)));
grad_data = g_new (gdouble, sample_size * 4);
width = sample_size * 4;
pv = grad_data;
while (sample_size)
{
seg = gimp_gradient_get_color_at (gradient, context, seg,
pos, reverse, &color);
*pv++ = color.r;
*pv++ = color.g;
*pv++ = color.b;
*pv++ = color.a;
pos += delta;
}
}
else
success = FALSE;
}
return_vals = gimp_procedure_get_return_values (procedure, success,
error ? *error : NULL);
if (success)
{
g_value_take_string (&return_vals->values[1], actual_name);
g_value_set_int (&return_vals->values[2], width);
gimp_value_take_floatarray (&return_vals->values[3], grad_data, width);
}
return return_vals;
}
