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- /* The GIMP -- an image manipulation program
- * Copyright (C) 1995 Spencer Kimball and Peter Mattis
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
- #include "config.h"
-
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
-
- #include <gtk/gtk.h>
-
- #include "apptypes.h"
-
- #include "appenv.h"
- #include "channel.h"
- #include "color_panel.h"
- #include "floating_sel.h"
- #include "gdisplayF.h"
- #include "gimpcontext.h"
- #include "gimage_mask.h"
- #include "gimpimage.h"
- #include "gimpui.h"
- #include "global_edit.h"
- #include "qmask.h"
- #include "undo.h"
-
- #include "libgimp/gimpintl.h"
-
-
- struct _EditQmaskOptions
- {
- GtkWidget *query_box;
- GtkWidget *name_entry;
-
- GimpImage *gimage;
- ColorPanel *color_panel;
- gdouble opacity;
- };
-
- typedef struct _EditQmaskOptions EditQmaskOptions;
-
- /* Global variables */
- /* Static variables */
- /* Prototypes */
- static void edit_qmask_channel_query (GDisplay *gdisp);
- static void edit_qmask_query_ok_callback (GtkWidget *widget,
- gpointer client_data);
- static void edit_qmask_query_cancel_callback (GtkWidget *widget,
- gpointer client_data);
- static void qmask_query_scale_update (GtkAdjustment *adjustment,
- gdouble *scale_val);
- static void qmask_removed_callback (GtkObject *qmask,
- gpointer data);
-
- /* Actual code */
-
- static void
- qmask_query_scale_update (GtkAdjustment *adjustment,
- gdouble *scale_val)
- {
- *scale_val = adjustment->value;
- }
-
- static void
- qmask_removed_callback (GtkObject *qmask,
- gpointer data)
- {
- GDisplay *gdisp = (GDisplay*) data;
-
- if (!gdisp->gimage)
- return;
-
- gdisp->gimage->qmask_state = FALSE;
-
- qmask_buttons_update (gdisp);
- }
-
-
- void
- qmask_buttons_update (GDisplay *gdisp)
- {
- g_assert (gdisp);
- g_assert (gdisp->gimage);
-
- if (gdisp->gimage->qmask_state != GTK_TOGGLE_BUTTON (gdisp->qmaskon)->active)
- {
- /* Disable toggle from doing anything */
- gtk_signal_handler_block_by_func(GTK_OBJECT(gdisp->qmaskoff),
- (GtkSignalFunc) qmask_deactivate,
- gdisp);
- gtk_signal_handler_block_by_func(GTK_OBJECT(gdisp->qmaskon),
- (GtkSignalFunc) qmask_activate,
- gdisp);
-
- /* Change the state of the buttons */
- gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(gdisp->qmaskon),
- gdisp->gimage->qmask_state);
-
- gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(gdisp->qmaskoff),
- !gdisp->gimage->qmask_state);
-
- /* Enable toggle again */
- gtk_signal_handler_unblock_by_func(GTK_OBJECT(gdisp->qmaskoff),
- (GtkSignalFunc) qmask_deactivate,
- gdisp);
- gtk_signal_handler_unblock_by_func(GTK_OBJECT(gdisp->qmaskon),
- (GtkSignalFunc) qmask_activate,
- gdisp);
- }
- }
-
- void
- qmask_click_handler (GtkWidget *widget,
- GdkEventButton *event,
- gpointer data)
- {
- GDisplay *gdisp;
- gdisp = (GDisplay *)data;
-
- if ((event->type == GDK_2BUTTON_PRESS) &&
- (event->button == 1))
- {
- edit_qmask_channel_query(gdisp);
- }
- }
-
- void
- qmask_deactivate (GtkWidget *widget,
- GDisplay *gdisp)
- {
- GimpImage *gimg;
- GimpChannel *gmask;
-
- if (gdisp)
- {
- gimg = gdisp->gimage;
- if (!gimg)
- return;
-
- if (!gdisp->gimage->qmask_state)
- return; /* if already set do nothing */
-
- if ( (gmask = gimp_image_get_channel_by_name (gimg, "Qmask")) )
- {
- undo_push_group_start (gimg, QMASK_UNDO);
- /* push the undo here since removing the mask will
- call the qmask_removed_callback() which will set
- the qmask_state to FALSE */
- undo_push_qmask (gimg);
- gimage_mask_load (gimg, gmask);
- gimage_remove_channel (gimg, gmask);
- undo_push_group_end (gimg);
- }
-
- gdisp->gimage->qmask_state = FALSE;
-
- if (gmask)
- gdisplays_flush ();
- }
- }
-
- void
- qmask_activate (GtkWidget *widget,
- GDisplay *gdisp)
- {
- GimpImage *gimg;
- GimpChannel *gmask;
- GimpLayer *layer;
-
- gdouble opacity;
- guchar *color;
-
- if (gdisp)
- {
- gimg = gdisp->gimage;
- if (!gimg)
- return;
-
- if (gdisp->gimage->qmask_state)
- return; /* If already set, do nothing */
-
- /* Set the defaults */
- opacity = (gdouble) gimg->qmask_opacity;
- color = gimg->qmask_color;
-
- if ( (gmask = gimp_image_get_channel_by_name (gimg, "Qmask")) )
- {
- gimg->qmask_state = TRUE;
- /* if the user was clever and created his own */
- return;
- }
-
- undo_push_group_start (gimg, QMASK_UNDO);
-
- if (gimage_mask_is_empty(gimg))
- {
- if ((layer = gimage_floating_sel (gimg)))
- {
- floating_sel_to_layer (layer);
- }
- /* if no selection */
- gmask = channel_new (gimg,
- gimg->width,
- gimg->height,
- "Qmask",
- (gint)(255*opacity)/100,
- color);
- gimp_image_add_channel (gimg, gmask, 0);
- gimp_drawable_fill (GIMP_DRAWABLE (gmask), 0, 0, 0, 0);
- }
- else
- { /* if selection */
- gmask = channel_copy (gimage_get_mask (gimg));
- gimp_image_add_channel (gimg, gmask, 0);
- channel_set_color (gmask, color);
- channel_set_name (gmask, "Qmask");
- channel_set_opacity (gmask, opacity);
- gimage_mask_none (gimg); /* Clear the selection */
- }
-
- undo_push_qmask (gimg);
- undo_push_group_end (gimg);
- gdisp->gimage->qmask_state = TRUE;
- gdisplays_flush ();
-
- /* connect to the removed signal, so the buttons get updated */
- gtk_signal_connect (GTK_OBJECT (gmask), "removed",
- GTK_SIGNAL_FUNC (qmask_removed_callback), gdisp);
- }
- }
-
- static void
- edit_qmask_channel_query (GDisplay * gdisp)
- {
- EditQmaskOptions *options;
- GtkWidget *hbox;
- GtkWidget *vbox;
- GtkWidget *table;
- GtkWidget *label;
- GtkWidget *opacity_scale;
- GtkObject *opacity_scale_data;
-
- gint i;
- guchar channel_color[3] = { 0, 0, 0 };
-
- /* channel = gimp_image_get_channel_by_name (gdisp->gimage, "Qmask"); */
- /* the new options structure */
- options = g_new (EditQmaskOptions, 1);
- options->gimage = gdisp->gimage;
- options->opacity = (gdouble) options->gimage->qmask_opacity;
-
- for (i = 0; i < 3; i++)
- channel_color[i] = options->gimage->qmask_color[i];
-
- options->color_panel = color_panel_new (channel_color, 48, 64);
-
- /* The dialog */
- options->query_box =
- gimp_dialog_new (_("Edit Qmask Attributes"), "edit_qmask_attributes",
- gimp_standard_help_func,
- "dialogs/edit_qmask_attributes.html",
- GTK_WIN_POS_MOUSE,
- FALSE, TRUE, FALSE,
-
- _("OK"), edit_qmask_query_ok_callback,
- options, NULL, NULL, TRUE, FALSE,
- _("Cancel"), edit_qmask_query_cancel_callback,
- options, NULL, NULL, FALSE, TRUE,
-
- NULL);
-
- /* The main hbox */
- hbox = gtk_hbox_new (FALSE, 2);
- gtk_container_set_border_width (GTK_CONTAINER (hbox), 4);
- gtk_container_add (GTK_CONTAINER (GTK_DIALOG (options->query_box)->vbox),
- hbox);
- /* The vbox */
- vbox = gtk_vbox_new (FALSE, 2);
- gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);
-
- /* The table */
- table = gtk_table_new (2, 3, FALSE);
- gtk_table_set_col_spacings (GTK_TABLE (table), 4);
- gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
-
- /* The opacity scale */
- label = gtk_label_new (_("Mask Opacity:"));
- gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
- gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
- GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
- gtk_widget_show (label);
-
- opacity_scale_data =
- gtk_adjustment_new (options->opacity, 0.0, 100.0, 1.0, 1.0, 0.0);
- opacity_scale = gtk_hscale_new (GTK_ADJUSTMENT (opacity_scale_data));
- gtk_table_attach_defaults (GTK_TABLE (table), opacity_scale, 1, 2, 1, 2);
- gtk_scale_set_value_pos (GTK_SCALE (opacity_scale), GTK_POS_TOP);
- gtk_signal_connect (GTK_OBJECT (opacity_scale_data), "value_changed",
- (GtkSignalFunc) qmask_query_scale_update,
- &options->opacity);
- gtk_widget_show (opacity_scale);
-
- /* The color panel */
- gtk_box_pack_start (GTK_BOX (hbox), options->color_panel->color_panel_widget,
- TRUE, TRUE, 0);
- gtk_widget_show (options->color_panel->color_panel_widget);
-
- gtk_widget_show (table);
- gtk_widget_show (vbox);
- gtk_widget_show (hbox);
- gtk_widget_show (options->query_box);
- }
-
- static void
- edit_qmask_query_ok_callback (GtkWidget *widget,
- gpointer client_data)
- {
- EditQmaskOptions *options;
- Channel *channel;
- guchar *tmpcolp;
- guchar tmpcol[3];
- gboolean update = FALSE;
- gint opacity;
- gint i;
-
- options = (EditQmaskOptions *) client_data;
- channel = gimp_image_get_channel_by_name (options->gimage, "Qmask");
- opacity = (gint) (255 * options->opacity/100);
-
- if (options->gimage && channel)
- { /* don't update if opacity hasn't changed */
- if (channel_get_opacity(channel) != opacity)
- {
- update = TRUE;
- }
- tmpcolp = channel_get_color(channel);
- for (i = 0; i < 3; i++)
- { /* don't update if color hasn't changed */
- tmpcol[i] = tmpcolp[i]; /* initialize to same values */
- if (options->color_panel->color[i] != tmpcolp[i])
- {
- tmpcol[i] = options->color_panel->color[i];
- update = TRUE;
- }
- }
-
- if (update)
- {
- channel_set_opacity(channel, 100*opacity/255);
- channel_set_color(channel,tmpcol);
- channel_update (channel);
- }
- }
- /* update the qmask color no matter what */
- for (i = 0; i < 3; i++)
- { /* TODO: should really have accessor functions for gimage private stuff */
- options->gimage->qmask_color[i] = options->color_panel->color[i];
- options->gimage->qmask_opacity = (gint) 100*opacity/255;
- }
-
- gtk_widget_destroy (options->query_box);
- g_free (options);
- }
-
- static void
- edit_qmask_query_cancel_callback (GtkWidget *widget,
- gpointer client_data)
- {
- EditQmaskOptions *options;
-
- options = (EditQmaskOptions *) client_data;
-
- gtk_widget_destroy (options->query_box);
- g_free (options);
- }
-
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