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b10adabb5e
2005-09-09 Michael Natterer <mitch@gimp.org> Added parent window API to the GimpProgress interface and to the libgimp progress stuff. Might look strange, but does the right thing in almost all cases (image window, file dialog, script-fu dialog etc). Fixes bug #62988. * app/core/gimpprogress.[ch]: added GimpProgress::get_window() which should return a toplevel window ID if the progress is in a window that wants to be the transient parent of plug-in dialogs. * app/widgets/gimpwidgets-utils.[ch] (gimp_window_get_native): new function which returns the window handle of a GtkWindow's GdkWindow. * app/widgets/gimpfiledialog.c: implement ::get_window(). * app/display/gimpdisplay.[ch]: ditto. Removed window handle API. * app/gui/gui-vtable.c: changed accordingly. * libgimpbase/gimpbaseenums.[ch] (enum GimpProgressCommand): added GIMP_PROGRESS_COMMAND_GET_WINDOW. * app/plug-in/plug-in-progress.[ch] (plug_in_progress_get_window): new function. Also renamed some functions to match the GimpProgress interface, and not the legacy PDB procedure names. * tools/pdbgen/pdb/progress.pdb * app/core/gimppdbprogress.c: implement get_window() on both sides of the wire, keeping backward compatibility (hopefully). * libgimp/gimpprogress.[ch]: deprecated gimp_progress_install() and added gimp_progress_install_vtable() which takes a vtable with padding to be extensible. Added get_window() vtable entry and dispatch it accordingly. Also added pulse() which was implemented in a hackish way before. Everything is of course backward compatible. * libgimp/gimpprogressbar.c: inmplement the get_window() stuff so a plug-in dialog containing a progress can be the transient parent of another dialog in another plug-in. * libgimp/gimpui.[ch] (gimp_ui_get_progress_window): new function which returns a foreign GdkWindow of this plug-ins progress window. Renamed gimp_window_set_transient_for_default_display() to gimp_window_set_transient() and make it use the progress' window handle instead of the display's (which is the right thing to do in almost all cases). * libgimp/gimp.def * libgimp/gimpui.def: add the new functions. * tools/pdbgen/enums.pl * app/pdb/internal_procs.c * app/pdb/progress_cmds.c * libgimp/gimpprogress_pdb.[ch]: regenerated. * libgimp/gimpexport.c * plug-ins/*/*.c: follow API change.
302 lines
8.8 KiB
C
302 lines
8.8 KiB
C
/* threshold_alpha.c -- This is a plug-in for the GIMP (1.0's API)
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* Author: Shuji Narazaki <narazaki@InetQ.or.jp>
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* Time-stamp: <2000-01-09 13:25:30 yasuhiro>
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* Version: 0.13A (the 'A' is for Adam who hacked in greyscale
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* support - don't know if there's a more recent official
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* version)
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*
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* Copyright (C) 1997 Shuji Narazaki <narazaki@InetQ.or.jp>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <libgimp/gimp.h>
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#include <libgimp/gimpui.h>
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#include "libgimp/stdplugins-intl.h"
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#define PLUG_IN_PROC "plug-in-threshold-alpha"
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#define PLUG_IN_BINARY "threshold_alpha"
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#define PROGRESS_UPDATE_NUM 100
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#define SCALE_WIDTH 120
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static void query (void);
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static void run (const gchar *name,
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gint nparams,
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const GimpParam *param,
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gint *nreturn_vals,
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GimpParam **return_vals);
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static void threshold_alpha (GimpDrawable *drawable,
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GimpPreview *preview);
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static gboolean threshold_alpha_dialog (GimpDrawable *drawable);
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GimpPlugInInfo PLUG_IN_INFO =
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{
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NULL, /* init_proc */
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NULL, /* quit_proc */
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query, /* query_proc */
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run, /* run_proc */
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};
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typedef struct
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{
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gint threshold;
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} ValueType;
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static ValueType VALS =
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{
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127 /* threshold */
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};
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MAIN ()
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static void
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query (void)
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{
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static GimpParamDef args [] =
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{
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{ GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
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{ GIMP_PDB_IMAGE, "image", "Input image (not used)" },
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{ GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
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{ GIMP_PDB_INT32, "threshold", "Threshold" }
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};
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gimp_install_procedure (PLUG_IN_PROC,
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"",
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"",
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"Shuji Narazaki (narazaki@InetQ.or.jp)",
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"Shuji Narazaki",
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"1997",
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N_("_Threshold Alpha..."),
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"RGBA,GRAYA",
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GIMP_PLUGIN,
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G_N_ELEMENTS (args), 0,
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args, NULL);
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gimp_plugin_menu_register (PLUG_IN_PROC,
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"<Image>/Layer/Transparency/Modify");
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}
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static void
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run (const gchar *name,
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gint nparams,
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const GimpParam *param,
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gint *nreturn_vals,
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GimpParam **return_vals)
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{
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static GimpParam values[1];
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GimpPDBStatusType status = GIMP_PDB_SUCCESS;
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GimpRunMode run_mode;
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GimpDrawable *drawable;
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run_mode = param[0].data.d_int32;
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drawable = gimp_drawable_get (param[2].data.d_drawable);
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gimp_tile_cache_ntiles (2 * (drawable->width / gimp_tile_width () + 1));
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INIT_I18N ();
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*nreturn_vals = 1;
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*return_vals = values;
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values[0].type = GIMP_PDB_STATUS;
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values[0].data.d_status = status;
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switch (run_mode)
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{
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case GIMP_RUN_INTERACTIVE:
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/* Since a channel might be selected, we must check wheter RGB or not. */
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if (gimp_layer_get_lock_alpha (drawable->drawable_id))
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{
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g_message (_("The layer has its alpha channel locked."));
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return;
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}
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if (!gimp_drawable_is_rgb (drawable->drawable_id) &&
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!gimp_drawable_is_gray (drawable->drawable_id))
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{
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g_message (_("RGBA/GRAYA drawable is not selected."));
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return;
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}
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gimp_get_data (PLUG_IN_PROC, &VALS);
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if (! threshold_alpha_dialog (drawable))
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return;
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break;
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case GIMP_RUN_NONINTERACTIVE:
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if (nparams != 4)
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{
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status = GIMP_PDB_CALLING_ERROR;
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}
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else
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{
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VALS.threshold = param[3].data.d_int32;
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}
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break;
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case GIMP_RUN_WITH_LAST_VALS:
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gimp_get_data (PLUG_IN_PROC, &VALS);
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break;
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}
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if (status == GIMP_PDB_SUCCESS)
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{
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if (gimp_drawable_has_alpha (drawable->drawable_id))
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{
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gimp_progress_init (_("Threshold Alpha: Coloring Transparency..."));
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threshold_alpha (drawable, NULL);
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if (run_mode != GIMP_RUN_NONINTERACTIVE)
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gimp_displays_flush ();
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if (run_mode == GIMP_RUN_INTERACTIVE && status == GIMP_PDB_SUCCESS)
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gimp_set_data (PLUG_IN_PROC, &VALS, sizeof (ValueType));
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}
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else
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{
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status = GIMP_PDB_EXECUTION_ERROR;
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}
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gimp_drawable_detach (drawable);
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}
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values[0].type = GIMP_PDB_STATUS;
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values[0].data.d_status = status;
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}
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static void
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threshold_alpha_func (const guchar *src,
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guchar *dest,
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gint bpp)
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{
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for (bpp--; bpp; bpp--)
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*dest++ = *src++;
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*dest = (VALS.threshold < *src) ? 255 : 0;
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}
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static void
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threshold_alpha (GimpDrawable *drawable,
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GimpPreview *preview)
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{
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if (preview)
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{
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GimpPixelRgn src_rgn;
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guchar *src, *dst;
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gint i;
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gint x1, y1;
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gint width, height;
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gint bpp;
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gimp_preview_get_position (preview, &x1, &y1);
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gimp_preview_get_size (preview, &width, &height);
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bpp = drawable->bpp;
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src = g_new (guchar, width * height * bpp);
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dst = g_new (guchar, width * height * bpp);
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gimp_pixel_rgn_init (&src_rgn, drawable,
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x1, y1, width, height,
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FALSE, FALSE);
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gimp_pixel_rgn_get_rect (&src_rgn, src, x1, y1, width, height);
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for (i = 0; i < width * height; i++)
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threshold_alpha_func (src + i * bpp, dst + i * bpp, bpp);
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gimp_preview_draw_buffer (preview, dst, width * bpp);
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g_free (src);
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g_free (dst);
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}
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else
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{
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gimp_rgn_iterate2 (drawable, 0 /* unused */,
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(GimpRgnFunc2)threshold_alpha_func, NULL);
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}
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}
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static gboolean
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threshold_alpha_dialog (GimpDrawable *drawable)
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{
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GtkWidget *dialog;
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GtkWidget *main_vbox;
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GtkWidget *preview;
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GtkWidget *table;
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GtkObject *adj;
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gboolean run;
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gimp_ui_init (PLUG_IN_BINARY, FALSE);
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dialog = gimp_dialog_new (_("Threshold Alpha"), PLUG_IN_BINARY,
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NULL, 0,
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gimp_standard_help_func, PLUG_IN_PROC,
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GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
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GTK_STOCK_OK, GTK_RESPONSE_OK,
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NULL);
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gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
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GTK_RESPONSE_OK,
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GTK_RESPONSE_CANCEL,
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-1);
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gimp_window_set_transient (GTK_WINDOW (dialog));
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main_vbox = gtk_vbox_new (FALSE, 12);
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gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
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gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), main_vbox);
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gtk_widget_show (main_vbox);
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preview = gimp_drawable_preview_new (drawable, NULL);
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gtk_box_pack_start (GTK_BOX (main_vbox), preview, TRUE, TRUE, 0);
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gtk_widget_show (preview);
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g_signal_connect_swapped (preview, "invalidated",
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G_CALLBACK (threshold_alpha),
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drawable);
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table = gtk_table_new (1 ,3, FALSE);
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gtk_table_set_col_spacings (GTK_TABLE (table), 6);
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gtk_container_set_border_width (GTK_CONTAINER (table), 12);
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gtk_box_pack_start (GTK_BOX (main_vbox), table, FALSE, FALSE, 0);
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gtk_widget_show (table);
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adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
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_("Threshold:"), SCALE_WIDTH, 0,
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VALS.threshold, 0, 255, 1, 8, 0,
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TRUE, 0, 0,
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NULL, NULL);
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g_signal_connect (adj, "value-changed",
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G_CALLBACK (gimp_int_adjustment_update),
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&VALS.threshold);
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g_signal_connect_swapped (adj, "value-changed",
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G_CALLBACK (gimp_preview_invalidate),
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preview);
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gtk_widget_show (dialog);
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run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
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gtk_widget_destroy (dialog);
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return run;
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}
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