f8ebd89ba9
2003-06-17 Sven Neumann <sven@gimp.org> * libgimp/gimpfontmenu.c * libgimp/gimpgradientmenu.c * libgimp/gimpmenu.h: minor cleanups. * libgimp/gimpbrushmenu.c * libgimp/gimppatternmenu.c: destroy the popup window instead of hiding it on button_release.
480 lines
12 KiB
C
480 lines
12 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimppatternmenu.c
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* Copyright (C) 1998 Andy Thomas
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#ifdef __GNUC__
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#warning GTK_DISABLE_DEPRECATED
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#endif
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#undef GTK_DISABLE_DEPRECATED
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#include "gimp.h"
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#include "gimpui.h"
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#include "libgimp-intl.h"
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/* Idea is to have a function to call that returns a widget that
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* completely controls the selection of a pattern.
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* you get a widget returned that you can use in a table say.
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* In:- Initial pattern name. Null means use current selection.
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* pointer to func to call when pattern changes (GimpRunPatternCallback).
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* Returned:- Pointer to a widget that you can use in UI.
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*
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* Widget simply made up of a preview widget (20x20) containing the pattern
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* and a button that can be clicked on to change the pattern.
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*/
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#define PSEL_DATA_KEY "__psel_data"
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#define CELL_SIZE 20
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#define PREVIEW_EVENT_MASK GDK_EXPOSURE_MASK | \
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GDK_BUTTON_PRESS_MASK | \
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GDK_BUTTON_RELEASE_MASK | \
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GDK_BUTTON1_MOTION_MASK
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struct __patterns_sel
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{
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gchar *title;
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GimpRunPatternCallback callback;
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GtkWidget *pattern_preview;
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GtkWidget *device_patpopup;
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GtkWidget *device_patpreview;
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GtkWidget *button;
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GtkWidget *top_hbox;
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gchar *pattern_name; /* Local copy */
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gint width;
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gint height;
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gint bytes;
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guchar *mask_data; /* local copy */
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gchar *pattern_popup_pnt; /* used to control the popup */
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gpointer data;
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};
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typedef struct __patterns_sel PSelect;
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static void pattern_popup_close (PSelect *psel);
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static void
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pattern_popup_open (PSelect *psel,
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gint x,
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gint y)
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{
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GtkWidget *frame;
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const guchar *src;
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guchar *buf;
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gint x_org;
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gint y_org;
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gint scr_w;
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gint scr_h;
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if (psel->device_patpopup)
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pattern_popup_close (psel);
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if (psel->width <= CELL_SIZE && psel->height <= CELL_SIZE)
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return;
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psel->device_patpopup = gtk_window_new (GTK_WINDOW_POPUP);
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frame = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
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gtk_container_add (GTK_CONTAINER (psel->device_patpopup), frame);
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gtk_widget_show (frame);
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psel->device_patpreview = gtk_preview_new (GTK_PREVIEW_COLOR);
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gtk_container_add (GTK_CONTAINER (frame), psel->device_patpreview);
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gtk_widget_show (psel->device_patpreview);
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/* decide where to put the popup */
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gdk_window_get_origin (psel->pattern_preview->window, &x_org, &y_org);
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scr_w = gdk_screen_width ();
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scr_h = gdk_screen_height ();
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x = x_org + x - (psel->width / 2);
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y = y_org + y - (psel->height / 2);
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x = (x < 0) ? 0 : x;
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y = (y < 0) ? 0 : y;
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x = (x + psel->width > scr_w) ? scr_w - psel->width : x;
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y = (y + psel->height > scr_h) ? scr_h - psel->height : y;
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gtk_preview_size (GTK_PREVIEW (psel->device_patpreview),
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psel->width, psel->height);
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gtk_window_move (GTK_WINDOW (psel->device_patpopup), x, y);
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gtk_widget_show (psel->device_patpopup);
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/* Draw the pattern */
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buf = g_new (guchar, psel->width * 3);
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src = psel->mask_data;
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for (y = 0; y < psel->height; y++)
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{
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switch (psel->bytes)
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{
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case 1:
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for (x = 0; x < psel->width; x++)
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{
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buf[x*3+0] = src[x];
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buf[x*3+1] = src[x];
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buf[x*3+2] = src[x];
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}
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break;
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case 3:
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for (x = 0; x < psel->width; x++)
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{
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buf[x*3+0] = src[x*3+0];
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buf[x*3+1] = src[x*3+1];
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buf[x*3+2] = src[x*3+2];
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}
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break;
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default:
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break;
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}
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gtk_preview_draw_row (GTK_PREVIEW (psel->device_patpreview),
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buf, 0, y, psel->width);
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src += psel->width * psel->bytes;
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}
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g_free (buf);
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gtk_widget_queue_draw (psel->device_patpreview);
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}
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static void
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pattern_popup_close (PSelect *psel)
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{
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if (psel->device_patpopup)
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{
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gtk_widget_destroy (psel->device_patpopup);
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psel->device_patpopup = NULL;
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}
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}
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static gint
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pattern_preview_events (GtkWidget *widget,
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GdkEvent *event,
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gpointer data)
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{
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GdkEventButton *bevent;
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PSelect *psel = (PSelect*)data;
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if (psel->mask_data)
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{
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switch (event->type)
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{
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case GDK_EXPOSE:
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break;
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case GDK_BUTTON_PRESS:
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bevent = (GdkEventButton *) event;
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if (bevent->button == 1)
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{
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gtk_grab_add (widget);
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pattern_popup_open (psel, bevent->x, bevent->y);
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}
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break;
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case GDK_BUTTON_RELEASE:
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bevent = (GdkEventButton *) event;
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if (bevent->button == 1)
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{
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gtk_grab_remove (widget);
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pattern_popup_close (psel);
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}
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break;
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case GDK_DELETE:
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break;
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default:
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break;
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}
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}
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return FALSE;
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}
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static void
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pattern_preview_update (GtkWidget *pattern_preview,
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gint width,
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gint height,
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gint bytes,
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const guchar *mask_data)
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{
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const guchar *src;
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guchar *buf;
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gint x, y;
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/* Draw the pattern */
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buf = g_new (guchar, width * 3);
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src = mask_data;
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for (y = 0; y < CELL_SIZE && y < height; y++)
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{
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switch (bytes)
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{
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case 1:
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for (x = 0; x < width && x < CELL_SIZE; x++)
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{
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buf[x*3+0] = src[x];
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buf[x*3+1] = src[x];
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buf[x*3+2] = src[x];
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}
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break;
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case 3:
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for (x = 0; x < width && x < CELL_SIZE; x++)
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{
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buf[x*3+0] = src[x*3+0];
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buf[x*3+1] = src[x*3+1];
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buf[x*3+2] = src[x*3+2];
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}
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break;
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default:
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break;
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}
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gtk_preview_draw_row (GTK_PREVIEW (pattern_preview),
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buf,
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0, y, (width < CELL_SIZE) ? width : CELL_SIZE);
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src += width * bytes;
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}
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g_free (buf);
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gtk_widget_queue_draw (pattern_preview);
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}
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static void
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pattern_select_invoker (const gchar *name,
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gint width,
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gint height,
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gint bytes,
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const guchar *mask_data,
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gboolean closing,
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gpointer data)
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{
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PSelect *psel = (PSelect*)data;
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g_free (psel->pattern_name);
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g_free (psel->mask_data);
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psel->pattern_name = g_strdup (name);
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psel->width = width;
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psel->height = height;
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psel->bytes = bytes;
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psel->mask_data = g_memdup (mask_data, width * height * bytes);
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pattern_preview_update (psel->pattern_preview,
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width, height, bytes, mask_data);
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if (psel->callback)
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psel->callback (name,
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width, height, bytes, mask_data, closing, psel->data);
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if (closing)
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psel->pattern_popup_pnt = NULL;
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}
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static void
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patterns_select_callback (GtkWidget *widget,
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gpointer data)
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{
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PSelect *psel = (PSelect*)data;
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if (psel->pattern_popup_pnt)
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{
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/* calling gimp_patterns_set_popup() raises the dialog */
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gimp_patterns_set_popup (psel->pattern_popup_pnt, psel->pattern_name);
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}
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else
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{
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psel->pattern_popup_pnt =
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gimp_interactive_selection_pattern (psel->title ?
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psel->title : _("Pattern Selection"),
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psel->pattern_name,
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pattern_select_invoker, psel);
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}
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}
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/**
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* gimp_pattern_select_widget:
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* @title: Title of the dialog to use or %NULL to use the default title.
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* @pattern_name: Initial pattern name or %NULL to use current selection.
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* @callback: a function to call when the selected pattern changes.
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* @data: a pointer to arbitary data to be used in the call to @callback.
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*
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* Creates a new #GtkWidget that completely controls the selection of a
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* pattern. This widget is suitable for placement in a table in a
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* plug-in dialog.
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*
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* Returns:A #GtkWidget that you can use in your UI.
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*/
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GtkWidget *
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gimp_pattern_select_widget (const gchar *title,
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const gchar *pattern_name,
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GimpRunPatternCallback callback,
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gpointer data)
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{
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GtkWidget *frame;
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GtkWidget *hbox;
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GtkWidget *pattern;
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GtkWidget *button;
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gint width;
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gint height;
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gint bytes;
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gint mask_data_size;
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guint8 *mask_data;
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gchar *name;
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PSelect *psel;
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psel = g_new0 (PSelect, 1);
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hbox = gtk_hbox_new (FALSE, 3);
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gtk_widget_show(hbox);
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frame = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
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gtk_widget_show (frame);
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pattern = gtk_preview_new (GTK_PREVIEW_COLOR);
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gtk_preview_size (GTK_PREVIEW (pattern), CELL_SIZE, CELL_SIZE);
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gtk_widget_show (pattern);
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gtk_container_add (GTK_CONTAINER (frame), pattern);
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gtk_widget_set_events (pattern, PREVIEW_EVENT_MASK);
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g_signal_connect (pattern, "event",
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G_CALLBACK (pattern_preview_events),
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psel);
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psel->callback = callback;
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psel->data = data;
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psel->device_patpopup = psel->device_patpreview = NULL;
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psel->pattern_preview = pattern;
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psel->title = g_strdup (title);
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/* Do initial pattern setup */
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name = gimp_patterns_get_pattern_data ((gchar *) pattern_name,
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&width,
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&height,
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&bytes,
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&mask_data_size,
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&mask_data);
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if (name)
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{
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psel->pattern_name = name;
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psel->width = width;
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psel->height = height;
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psel->bytes = bytes;
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psel->mask_data = mask_data;
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pattern_preview_update (psel->pattern_preview,
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width, height, bytes, mask_data);
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}
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gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
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button = gtk_button_new_with_label ("... ");
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gtk_container_add (GTK_CONTAINER (hbox), button);
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gtk_widget_show (button);
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psel->button = button;
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g_signal_connect (button, "clicked",
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G_CALLBACK (patterns_select_callback),
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psel);
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g_object_set_data (G_OBJECT (hbox), PSEL_DATA_KEY, psel);
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return hbox;
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}
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/**
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* gimp_pattern_select_widget_close_popup:
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* @widget: A pattern select widget.
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*
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* Closes the popup window associated with @widget.
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*/
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void
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gimp_pattern_select_widget_close_popup (GtkWidget *widget)
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{
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PSelect *psel;
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psel = (PSelect *) g_object_get_data (G_OBJECT (widget), PSEL_DATA_KEY);
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if (psel && psel->pattern_popup_pnt)
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psel->pattern_popup_pnt = NULL;
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}
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/**
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* gimp_pattern_select_widget_set_popup:
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* @widget: A pattern select widget.
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* @pattern_name: Pattern name to set. NULL means no change.
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*
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* Sets the current pattern for the pattern
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* select widget. Calls the callback function if one was
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* supplied in the call to gimp_pattern_select_widget().
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*/
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void
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gimp_pattern_select_widget_set_popup (GtkWidget *widget,
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const gchar *pattern_name)
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{
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gint width;
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gint height;
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gint bytes;
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gint mask_data_size;
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guint8 *mask_data;
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gchar *name;
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PSelect *psel;
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psel = (PSelect*) g_object_get_data (G_OBJECT (widget), PSEL_DATA_KEY);
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if (psel)
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{
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name = gimp_patterns_get_pattern_data ((gchar *) pattern_name,
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&width,
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&height,
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&bytes,
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&mask_data_size,
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&mask_data);
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pattern_select_invoker (name,
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width, height, bytes, mask_data, FALSE, psel);
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if (psel->pattern_popup_pnt)
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gimp_patterns_set_popup (psel->pattern_popup_pnt, name);
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g_free (name);
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g_free (mask_data);
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}
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}
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