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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.
- */
-
- /* Original plug-in coded by Tim Newsome.
- *
- * Changed to make use of real-life units by Sven Neumann <sven@gimp.org>.
- *
- * The interface code is heavily commented in the hope that it will
- * help other plug-in developers to adapt their plug-ins to make use
- * of the gimp_size_entry functionality.
- *
- * Note: There is a convenience constructor called gimp_coordinetes_new ()
- * which simplifies the task of setting up a standard X,Y sizeentry.
- *
- * For more info and bugs see libgimp/gimpsizeentry.h and libgimp/gimpwidgets.h
- *
- * May 2000 tim copperfield [timecop@japan.co.jp]
- * http://www.ne.jp/asahi/linux/timecop
- * Added dynamic preview. Due to weird implementation of signals from all
- * controls, preview will not auto-update. But this plugin isn't really
- * crying for real-time updating either.
- *
- */
-
- #include "config.h"
-
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
-
- #include <gtk/gtk.h>
-
- #include <libgimp/gimp.h>
- #include <libgimp/gimpui.h>
-
- #include "libgimp/stdplugins-intl.h"
-
-
- #define SPIN_BUTTON_WIDTH 75
- #define COLOR_BUTTON_WIDTH 55
- #define PREVIEW_SIZE 128
-
- /* Declare local functions. */
- static void query (void);
- static void run (gchar *name,
- gint nparams,
- GimpParam *param,
- gint *nreturn_vals,
- GimpParam **return_vals);
-
- static guchar best_cmap_match (guchar *cmap,
- gint ncolors,
- guchar *color);
- static void doit (gint32 image_ID,
- GimpDrawable *drawable,
- gboolean preview_mode);
- static gint dialog (gint32 image_ID,
- GimpDrawable *drawable);
- static GtkWidget * preview_widget (GimpDrawable *drawable);
- static void fill_preview (GtkWidget *preview_widget,
- GimpDrawable *drawable);
-
- GimpPlugInInfo PLUG_IN_INFO =
- {
- NULL, /* init_proc */
- NULL, /* quit_proc */
- query, /* query_proc */
- run, /* run_proc */
- };
-
- gint sx1, sy1, sx2, sy2;
- gint run_flag = FALSE;
-
- static GtkWidget *hcolor_button;
- static GtkWidget *vcolor_button;
- static guchar *preview_bits;
- static GtkWidget *preview;
-
-
- typedef struct
- {
- gint hwidth;
- gint hspace;
- gint hoffset;
- guint8 hcolor[4];
- gint vwidth;
- gint vspace;
- gint voffset;
- guint8 vcolor[4];
- gint iwidth;
- gint ispace;
- gint ioffset;
- guint8 icolor[4];
- }
- Config;
-
- Config grid_cfg =
- {
- 1, 16, 8, { 0, 0, 128, 255 }, /* horizontal */
- 1, 16, 8, { 0, 0, 128, 255 }, /* vertical */
- 0, 2, 6, { 0, 0, 255, 255 }, /* intersection */
- };
-
-
- MAIN ()
-
- static
- void query (void)
- {
- static GimpParamDef args[] =
- {
- { GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
- { GIMP_PDB_IMAGE, "image", "Input image" },
- { GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
-
- { GIMP_PDB_INT32, "hwidth", "Horizontal Width (>= 0)" },
- { GIMP_PDB_INT32, "hspace", "Horizontal Spacing (>= 1)" },
- { GIMP_PDB_INT32, "hoffset", "Horizontal Offset (>= 0)" },
- { GIMP_PDB_COLOR, "hcolor", "Horizontal Colour" },
- { GIMP_PDB_INT8, "hopacity", "Horizontal Opacity (0...255)" },
-
- { GIMP_PDB_INT32, "vwidth", "Vertical Width (>= 0)" },
- { GIMP_PDB_INT32, "vspace", "Vertical Spacing (>= 1)" },
- { GIMP_PDB_INT32, "voffset", "Vertical Offset (>= 0)" },
- { GIMP_PDB_COLOR, "vcolor", "Vertical Colour" },
- { GIMP_PDB_INT8, "vopacity", "Vertical Opacity (0...255)" },
-
- { GIMP_PDB_INT32, "iwidth", "Intersection Width (>= 0)" },
- { GIMP_PDB_INT32, "ispace", "Intersection Spacing (>= 0)" },
- { GIMP_PDB_INT32, "ioffset", "Intersection Offset (>= 0)" },
- { GIMP_PDB_COLOR, "icolor", "Intersection Colour" },
- { GIMP_PDB_INT8, "iopacity", "Intersection Opacity (0...255)" }
- };
- static gint nargs = sizeof (args) / sizeof (args[0]);
-
- gimp_install_procedure ("plug_in_grid",
- "Draws a grid.",
- "Draws a grid using the specified colors. "
- "The grid origin is the upper left corner.",
- "Tim Newsome",
- "Tim Newsome, Sven Neumann, Tom Rathborne, TC",
- "1997 - 2000",
- N_("<Image>/Filters/Render/Pattern/Grid..."),
- "RGB*, GRAY*, INDEXED*",
- GIMP_PLUGIN,
- nargs, 0,
- args, NULL);
- }
-
- static void
- run (gchar *name,
- gint n_params,
- GimpParam *param,
- gint *nreturn_vals,
- GimpParam **return_vals)
- {
- static GimpParam values[1];
- GimpDrawable *drawable;
- gint32 image_ID;
- GimpRunModeType run_mode;
- GimpPDBStatusType status = GIMP_PDB_SUCCESS;
-
- *nreturn_vals = 1;
- *return_vals = values;
-
- INIT_I18N_UI();
-
- run_mode = param[0].data.d_int32;
- image_ID = param[1].data.d_int32;
- drawable = gimp_drawable_get (param[2].data.d_drawable);
-
- if (run_mode == GIMP_RUN_NONINTERACTIVE)
- {
- if (n_params != 18)
- status = GIMP_PDB_CALLING_ERROR;
-
- if (status == GIMP_PDB_SUCCESS)
- {
- grid_cfg.hwidth = MAX (0, param[3].data.d_int32);
- grid_cfg.hspace = MAX (1, param[4].data.d_int32);
- grid_cfg.hoffset = MAX (0, param[5].data.d_int32);
- grid_cfg.hcolor[0] = param[6].data.d_color.red;
- grid_cfg.hcolor[1] = param[6].data.d_color.green;
- grid_cfg.hcolor[2] = param[6].data.d_color.blue;
- grid_cfg.hcolor[3] = param[7].data.d_int8;
-
- grid_cfg.vwidth = MAX (0, param[8].data.d_int32);
- grid_cfg.vspace = MAX (1, param[9].data.d_int32);
- grid_cfg.voffset = MAX (0, param[10].data.d_int32);
- grid_cfg.vcolor[0] = param[11].data.d_color.red;
- grid_cfg.vcolor[1] = param[11].data.d_color.green;
- grid_cfg.vcolor[2] = param[11].data.d_color.blue;
- grid_cfg.vcolor[3] = param[12].data.d_int8;
-
- grid_cfg.iwidth = MAX (0, param[13].data.d_int32);
- grid_cfg.ispace = MAX (0, param[14].data.d_int32);
- grid_cfg.ioffset = MAX (0, param[15].data.d_int32);
- grid_cfg.icolor[0] = param[16].data.d_color.red;
- grid_cfg.icolor[1] = param[16].data.d_color.green;
- grid_cfg.icolor[2] = param[16].data.d_color.blue;
- grid_cfg.icolor[3] = param[17].data.d_int8;
- }
- }
- else
- {
- /* Possibly retrieve data */
- gimp_get_data ("plug_in_grid", &grid_cfg);
- }
-
- if (run_mode == GIMP_RUN_INTERACTIVE)
- {
- if (!dialog (image_ID, drawable))
- {
- /* The dialog was closed, or something similarly evil happened. */
- status = GIMP_PDB_EXECUTION_ERROR;
- }
- g_free(preview_bits);
- }
-
- if (grid_cfg.hspace <= 0 || grid_cfg.vspace <= 0)
- {
- status = GIMP_PDB_EXECUTION_ERROR;
- }
-
- if (status == GIMP_PDB_SUCCESS)
- {
- gimp_progress_init (_("Drawing Grid..."));
- gimp_tile_cache_ntiles (2 * (drawable->width / gimp_tile_width () + 1));
-
- doit (image_ID, drawable, FALSE);
-
- if (run_mode != GIMP_RUN_NONINTERACTIVE)
- gimp_displays_flush ();
-
- if (run_mode == GIMP_RUN_INTERACTIVE)
- gimp_set_data ("plug_in_grid", &grid_cfg, sizeof (grid_cfg));
-
- gimp_drawable_detach (drawable);
- }
-
- values[0].type = GIMP_PDB_STATUS;
- values[0].data.d_status = status;
- }
-
-
- #define MAXDIFF 195076
-
- static guchar
- best_cmap_match (guchar *cmap,
- gint ncolors,
- guchar *color)
- {
- guchar cmap_index = 0;
- gint max = MAXDIFF;
- gint i, diff, sum;
-
- for (i = 0; i < ncolors; i++)
- {
- diff = color[0] - *cmap++;
- sum = SQR (diff);
- diff = color[1] - *cmap++;
- sum += SQR (diff);
- diff = color[2] - *cmap++;
- sum += SQR (diff);
-
- if (sum < max)
- {
- cmap_index = i;
- max = sum;
- }
- }
-
- return cmap_index;
- }
-
-
- G_INLINE_FUNC void
- pix_composite (guchar *p1,
- guchar p2[4],
- gint bytes,
- gboolean blend,
- gboolean alpha)
- {
- gint b;
-
- if (alpha)
- {
- bytes--;
- }
-
- if (blend)
- {
- for (b = 0; b < bytes; b++)
- {
- *p1 = *p1 * (1.0 - p2[3]/255.0) + p2[b] * p2[3]/255.0;
- p1++;
- }
- }
- else
- {
- /* blend should only be TRUE for indexed (bytes == 1) */
- *p1++ = *p2;
- }
-
- if (alpha && *p1 < 255)
- {
- b = *p1 + 255.0 * ((double)p2[3] / (255.0 - *p1));
- *p1 = b > 255 ? 255 : b;
- }
- }
-
-
- static void
- doit (gint32 image_ID,
- GimpDrawable *drawable,
- gboolean preview_mode)
- {
- GimpPixelRgn srcPR, destPR;
- gint width, height, bytes;
- gint x_offset, y_offset;
- guchar *dest;
- gint x, y;
- gboolean alpha;
- gboolean blend;
- guchar hcolor[4];
- guchar vcolor[4];
- guchar icolor[4];
- guchar *cmap;
- gint ncolors;
-
- if (preview_mode)
- {
- memcpy (hcolor, grid_cfg.hcolor, 4);
- memcpy (vcolor, grid_cfg.vcolor, 4);
- memcpy (icolor, grid_cfg.icolor, 4);
- blend = TRUE;
- }
- else
- {
- switch (gimp_image_base_type (image_ID))
- {
- case GIMP_RGB:
- memcpy (hcolor, grid_cfg.hcolor, 4);
- memcpy (vcolor, grid_cfg.vcolor, 4);
- memcpy (icolor, grid_cfg.icolor, 4);
- blend = TRUE;
- break;
-
- case GIMP_GRAY:
- hcolor[0] = INTENSITY (grid_cfg.hcolor[0], grid_cfg.hcolor[1], grid_cfg.hcolor[2]);
- hcolor[3] = grid_cfg.hcolor[3];
- vcolor[0] = INTENSITY (grid_cfg.vcolor[0], grid_cfg.vcolor[1], grid_cfg.vcolor[2]);
- vcolor[3] = grid_cfg.vcolor[3];
- icolor[0] = INTENSITY (grid_cfg.icolor[0], grid_cfg.icolor[1], grid_cfg.icolor[2]);
- icolor[3] = grid_cfg.icolor[3];
- blend = TRUE;
- break;
-
- case GIMP_INDEXED:
- cmap = gimp_image_get_cmap (image_ID, &ncolors);
- hcolor[0] = best_cmap_match (cmap, ncolors, grid_cfg.hcolor);
- hcolor[3] = grid_cfg.hcolor[3];
- vcolor[0] = best_cmap_match (cmap, ncolors, grid_cfg.vcolor);
- vcolor[3] = grid_cfg.vcolor[3];
- icolor[0] = best_cmap_match (cmap, ncolors, grid_cfg.icolor);
- icolor[3] = grid_cfg.icolor[3];
- g_free (cmap);
- blend = FALSE;
- break;
-
- default:
- g_assert_not_reached ();
- blend = FALSE;
- }
- }
-
- if (preview_mode)
- {
- sx1 = sy1 = 0;
- sx2 = GTK_PREVIEW (preview)->buffer_width;
- sy2 = GTK_PREVIEW (preview)->buffer_height;
- width = sx2;
- height = sy2;
- alpha = 0;
- bytes = GTK_PREVIEW (preview)->bpp;
- }
- else
- {
- /* Get the input area. This is the bounding box of the selection in
- * the image (or the entire image if there is no selection).
- */
- gimp_drawable_mask_bounds (drawable->id, &sx1, &sy1, &sx2, &sy2);
- width = gimp_drawable_width (drawable->id);
- height = gimp_drawable_height (drawable->id);
- alpha = gimp_drawable_has_alpha (drawable->id);
- bytes = drawable->bpp;
-
- /* initialize the pixel regions */
- gimp_pixel_rgn_init (&srcPR, drawable, 0, 0, width, height, FALSE, FALSE);
- gimp_pixel_rgn_init (&destPR, drawable, 0, 0, width, height, TRUE, TRUE);
- }
-
- dest = g_malloc (width * bytes);
- for (y = sy1; y < sy2; y++)
- {
- if (preview_mode)
- memcpy (dest,
- preview_bits + (GTK_PREVIEW (preview)->rowstride * y),
- GTK_PREVIEW (preview)->rowstride);
- else
- gimp_pixel_rgn_get_row (&srcPR, dest, sx1, y, (sx2 - sx1));
-
- y_offset = y - grid_cfg.voffset;
- while (y_offset < 0)
- y_offset += grid_cfg.vspace;
-
- if ((y_offset + (grid_cfg.vwidth / 2)) % grid_cfg.vspace < grid_cfg.vwidth)
- {
- for (x = sx1; x < sx2; x++)
- {
- pix_composite (&dest[(x-sx1) * bytes], hcolor, bytes, blend, alpha);
- }
- }
-
- if ((y_offset + (grid_cfg.iwidth / 2)) % grid_cfg.vspace < grid_cfg.iwidth)
- {
- for (x = sx1; x < sx2; x++)
- {
- x_offset = grid_cfg.hspace + x - grid_cfg.hoffset;
- while (x_offset < 0)
- x_offset += grid_cfg.hspace;
-
- if ((x_offset % grid_cfg.hspace >= grid_cfg.ispace
- &&
- x_offset % grid_cfg.hspace < grid_cfg.ioffset)
- ||
- (grid_cfg.hspace - (x_offset % grid_cfg.hspace) >= grid_cfg.ispace
- &&
- grid_cfg.hspace - (x_offset % grid_cfg.hspace) < grid_cfg.ioffset))
- {
- pix_composite (&dest[(x-sx1) * bytes], icolor, bytes, blend, alpha);
- }
- }
- }
-
- for (x = sx1; x < sx2; x++)
- {
- x_offset = grid_cfg.hspace + x - grid_cfg.hoffset;
- while (x_offset < 0)
- x_offset += grid_cfg.hspace;
-
- if ((x_offset + (grid_cfg.hwidth / 2)) % grid_cfg.hspace < grid_cfg.hwidth)
- {
- pix_composite (&dest[(x-sx1) * bytes], vcolor, bytes, blend, alpha);
- }
-
- if ((x_offset + (grid_cfg.iwidth / 2)) % grid_cfg.hspace < grid_cfg.iwidth
- &&
- ((y_offset % grid_cfg.vspace >= grid_cfg.ispace
- &&
- y_offset % grid_cfg.vspace < grid_cfg.ioffset)
- ||
- (grid_cfg.vspace - (y_offset % grid_cfg.vspace) >= grid_cfg.ispace
- &&
- grid_cfg.vspace - (y_offset % grid_cfg.vspace) < grid_cfg.ioffset)))
- {
- pix_composite (&dest[(x-sx1) * bytes], icolor, bytes, blend, alpha);
- }
- }
- if (preview_mode)
- {
- memcpy (GTK_PREVIEW (preview)->buffer + (GTK_PREVIEW (preview)->rowstride * y),
- dest,
- GTK_PREVIEW (preview)->rowstride);
- }
- else
- {
- gimp_pixel_rgn_set_row (&destPR, dest, sx1, y, (sx2-sx1) );
- gimp_progress_update ((double) y / (double) (sy2 - sy1));
- }
- }
- g_free (dest);
-
- /* update the timred region */
- if (preview_mode)
- {
- gtk_widget_queue_draw (preview);
- }
- else
- {
- gimp_drawable_flush (drawable);
- gimp_drawable_merge_shadow (drawable->id, TRUE);
- gimp_drawable_update (drawable->id, sx1, sy1, sx2 - sx1, sy2 - sy1);
- }
- }
-
-
- /***************************************************
- * GUI stuff
- */
-
- static void
- ok_callback (GtkWidget *widget,
- gpointer data)
- {
- GtkWidget *entry;
-
- run_flag = TRUE;
-
- entry = gtk_object_get_data (GTK_OBJECT (data), "width");
- grid_cfg.hwidth = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 0));
- grid_cfg.vwidth = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 1));
- grid_cfg.iwidth = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 2));
-
- entry = gtk_object_get_data (GTK_OBJECT (data), "space");
- grid_cfg.hspace = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 0));
- grid_cfg.vspace = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 1));
- grid_cfg.ispace = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 2));
-
- entry = gtk_object_get_data (GTK_OBJECT (data), "offset");
- grid_cfg.hoffset = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 0));
- grid_cfg.voffset = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 1));
- grid_cfg.ioffset = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 2));
-
- gtk_widget_destroy (GTK_WIDGET (data));
- }
-
-
- static void
- entry_callback (GtkWidget *widget,
- gpointer data)
- {
- static gdouble x = -1.0;
- static gdouble y = -1.0;
- gdouble new_x;
- gdouble new_y;
-
- new_x = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 0);
- new_y = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 1);
-
- if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (data)))
- {
- if (new_x != x)
- {
- y = new_y = x = new_x;
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 1, y);
- }
- if (new_y != y)
- {
- x = new_x = y = new_y;
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 0, x);
- }
- }
- else
- {
- if (new_x != x)
- x = new_x;
- if (new_y != y)
- y = new_y;
- }
- }
-
-
- static void
- color_callback (GtkWidget *widget,
- gpointer data)
- {
- gint i;
-
- if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (data)))
- {
- if (widget == hcolor_button)
- {
- for (i = 0; i < 4; i++)
- grid_cfg.vcolor[i] = grid_cfg.hcolor[i];
- gimp_color_button_update (GIMP_COLOR_BUTTON (vcolor_button));
- }
- else
- {
- for (i = 0; i < 4; i++)
- grid_cfg.hcolor[i] = grid_cfg.vcolor[i];
- gimp_color_button_update (GIMP_COLOR_BUTTON (hcolor_button));
- }
- }
- }
-
-
- static void
- update_preview_callback (GtkWidget *widget,
- gpointer data)
- {
- GimpDrawable *drawable;
- GtkWidget *entry;
-
- drawable = gtk_object_get_data (GTK_OBJECT (widget), "drawable");
-
- entry = gtk_object_get_data (GTK_OBJECT (widget), "width");
- grid_cfg.hwidth = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 0));
- grid_cfg.vwidth = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 1));
- grid_cfg.iwidth = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 2));
-
- entry = gtk_object_get_data (GTK_OBJECT (widget), "space");
- grid_cfg.hspace = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 0));
- grid_cfg.vspace = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 1));
- grid_cfg.ispace = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 2));
-
- entry = gtk_object_get_data (GTK_OBJECT (widget), "offset");
- grid_cfg.hoffset = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 0));
- grid_cfg.voffset = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 1));
- grid_cfg.ioffset = RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (entry), 2));
-
- doit (0, drawable, TRUE); /* we can set image_ID = 0 'cause we dont use it */
- }
-
- static gint
- dialog (gint32 image_ID,
- GimpDrawable *drawable)
- {
- GtkWidget *dlg;
- GtkWidget *main_hbox;
- GtkWidget *main_vbox;
- GtkWidget *frame;
- GtkWidget *abox;
-
- GtkWidget *button;
- GtkWidget *hbox;
- GtkWidget *width;
- GtkWidget *space;
- GtkWidget *offset;
- GtkWidget *chain_button;
- GtkWidget *table;
- GtkWidget *align;
- GimpUnit unit;
- gdouble xres;
- gdouble yres;
-
- gimp_ui_init ("grid", TRUE);
-
- dlg = gimp_dialog_new (_("Grid"), "grid",
- gimp_standard_help_func, "filters/grid.html",
- GTK_WIN_POS_MOUSE,
- FALSE, TRUE, FALSE,
-
- _("OK"), ok_callback,
- NULL, NULL, NULL, TRUE, FALSE,
- _("Cancel"), gtk_widget_destroy,
- NULL, 1, NULL, FALSE, TRUE,
-
- NULL);
-
- gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
- GTK_SIGNAL_FUNC (gtk_main_quit),
- NULL);
-
- /* Get the image resolution and unit */
- gimp_image_get_resolution (image_ID, &xres, &yres);
- unit = gimp_image_get_unit (image_ID);
-
- /* main hbox: [ ][ ] */
- main_hbox = gtk_hbox_new (FALSE, 2);
- gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), main_hbox, FALSE, FALSE, 4);
- /* hbox created and packed into the dialog */
-
- /* make a nice frame */
- frame = gtk_frame_new (_("Preview"));
- gtk_container_set_border_width (GTK_CONTAINER (frame), 4);
- gtk_box_pack_start (GTK_BOX (main_hbox), frame, FALSE, FALSE, 0);
- gtk_widget_show (frame);
-
- hbox = gtk_vbox_new (FALSE, 2);
- gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
- gtk_container_add (GTK_CONTAINER (frame), hbox);
- gtk_widget_show (hbox);
-
- /* row 1 */
- abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
- gtk_container_set_border_width (GTK_CONTAINER (abox), 4);
- gtk_box_pack_start (GTK_BOX (hbox), abox, TRUE, TRUE, 0);
- gtk_widget_show (abox);
- frame = gtk_frame_new (NULL);
- gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
- gtk_container_add (GTK_CONTAINER (abox), frame);
- gtk_widget_show (frame);
- preview = preview_widget (drawable); /* we are here */
- gtk_container_add (GTK_CONTAINER (frame), preview);
- doit (image_ID, drawable, TRUE); /* render preview */
- gtk_widget_show (preview);
-
- /* row 2 */
- abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
- gtk_container_set_border_width (GTK_CONTAINER (abox), 4);
- gtk_container_add (GTK_CONTAINER (hbox), abox);
- gtk_widget_show (abox);
- button = gtk_button_new_with_label (_("Update Preview"));
- gtk_misc_set_padding (GTK_MISC (GTK_BIN (button)->child), 2, 0);
- gtk_object_set_data (GTK_OBJECT (button), "drawable", drawable);
- gtk_signal_connect (GTK_OBJECT (button), "clicked",
- GTK_SIGNAL_FUNC (update_preview_callback),
- NULL);
- gtk_container_add (GTK_CONTAINER (abox), button);
- gtk_widget_show (button);
- /* left side of the UI is done */
-
- /* right side */
- frame = gtk_frame_new (_("Parameter Settings"));
- gtk_container_set_border_width (GTK_CONTAINER (frame), 4);
- gtk_box_pack_start (GTK_BOX (main_hbox), frame, FALSE, FALSE, 0);
- gtk_widget_show (frame);
-
- main_vbox = gtk_vbox_new (FALSE, 4);
- gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 6);
- gtk_container_add (GTK_CONTAINER (frame), main_vbox);
- gtk_widget_show (main_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_object_set_data (GTK_OBJECT (button), "width", 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, (gdouble)(drawable->width));
- gimp_size_entry_set_size (GIMP_SIZE_ENTRY (width), 1, 0.0, (gdouble)(drawable->height));
- gimp_size_entry_set_size (GIMP_SIZE_ENTRY (width), 2, 0.0, (gdouble)(drawable->width));
-
- /* set upper and lower limits (in pixels) */
- gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (width), 0, 0.0,
- (gdouble)(drawable->width));
- gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (width), 1, 0.0,
- (gdouble)(drawable->height));
- gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (width), 2, 0.0,
- (gdouble)(MAX (drawable->width, drawable->height)));
- gtk_table_set_col_spacing (GTK_TABLE (width), 2, 12);
- gtk_table_set_col_spacing (GTK_TABLE (width), 3, 12);
-
- /* initialize the values */
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (width), 0, (gdouble)grid_cfg.hwidth);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (width), 1, (gdouble)grid_cfg.vwidth);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (width), 2, (gdouble)grid_cfg.iwidth);
-
- /* attach labels */
- gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Horizontal"), 0, 1, 0.0);
- gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Vertical"), 0, 2, 0.0);
- gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Intersection"), 0, 3, 0.0);
- gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (width), _("Width: "), 1, 0, 0.0);
-
- /* 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 */
- gtk_signal_connect (GTK_OBJECT (width), "value_changed",
- (GtkSignalFunc) entry_callback, chain_button);
-
- abox = gtk_alignment_new (1.0, 0.5, 0.0, 0.0);
- gtk_container_add (GTK_CONTAINER (abox), width);
- gtk_box_pack_start (GTK_BOX (main_vbox), abox, FALSE, FALSE, 4);
- gtk_widget_show (width);
- gtk_widget_show (abox);
-
- /* 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_object_set_data (GTK_OBJECT (button), "space", 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, (gdouble)(drawable->width));
- gimp_size_entry_set_size (GIMP_SIZE_ENTRY (space), 1, 0.0, (gdouble)(drawable->height));
- gimp_size_entry_set_size (GIMP_SIZE_ENTRY (space), 2, 0.0, (gdouble)(drawable->width));
-
- /* set upper and lower limits (in pixels) */
- gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (space), 0, 1.0,
- (gdouble)(drawable->width));
- gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (space), 1, 1.0,
- (gdouble)(drawable->height));
- gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (space), 2, 0.0,
- (gdouble)(MAX (drawable->width, drawable->height)));
- gtk_table_set_col_spacing (GTK_TABLE (space), 2, 12);
- gtk_table_set_col_spacing (GTK_TABLE (space), 3, 12);
-
- /* initialize the values */
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (space), 0, (gdouble)grid_cfg.hspace);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (space), 1, (gdouble)grid_cfg.vspace);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (space), 2, (gdouble)grid_cfg.ispace);
- /* attach labels */
- gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (space), _("Spacing: "), 1, 0, 0.0);
-
- /* 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 */
- gtk_signal_connect (GTK_OBJECT (space), "value_changed",
- (GtkSignalFunc) entry_callback, chain_button);
- gtk_signal_connect (GTK_OBJECT (space), "unit_changed",
- (GtkSignalFunc) entry_callback, chain_button);
-
- abox = gtk_alignment_new (1.0, 0.5, 0.0, 0.0);
- gtk_container_add (GTK_CONTAINER (abox), space);
- gtk_box_pack_start (GTK_BOX (main_vbox), abox, FALSE, FALSE, 4);
- gtk_widget_show (space);
- gtk_widget_show (abox);
-
- /* 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_object_set_data (GTK_OBJECT (button), "offset", 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, (gdouble)(drawable->width));
- gimp_size_entry_set_size (GIMP_SIZE_ENTRY (offset), 1, 0.0, (gdouble)(drawable->height));
- gimp_size_entry_set_size (GIMP_SIZE_ENTRY (offset), 2, 0.0, (gdouble)(drawable->width));
-
- /* set upper and lower limits (in pixels) */
- gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (offset), 0, 0.0,
- (gdouble)(drawable->width));
- gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (offset), 1, 0.0,
- (gdouble)(drawable->height));
- gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (offset), 2, 0.0,
- (gdouble)(MAX (drawable->width, drawable->height)));
- gtk_table_set_col_spacing (GTK_TABLE (offset), 2, 12);
- gtk_table_set_col_spacing (GTK_TABLE (offset), 3, 12);
-
- /* initialize the values */
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (offset), 0, (gdouble)grid_cfg.hoffset);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (offset), 1, (gdouble)grid_cfg.voffset);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (offset), 2, (gdouble)grid_cfg.ioffset);
-
- /* attach labels */
- gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (offset), _("Offset: "), 1, 0, 0.0);
-
- /* 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 */
- gtk_signal_connect (GTK_OBJECT (offset), "value_changed",
- (GtkSignalFunc) entry_callback, chain_button);
- gtk_signal_connect (GTK_OBJECT (offset), "unit_changed",
- (GtkSignalFunc) entry_callback, chain_button);
-
- /* put a chain_button under the color_buttons */
- chain_button = gimp_chain_button_new (GIMP_CHAIN_BOTTOM);
- if ((guint32)(*grid_cfg.hcolor) == (guint32)(*grid_cfg.vcolor))
- 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, 4);
- gtk_signal_connect (GTK_OBJECT (hcolor_button), "color_changed",
- (GtkSignalFunc) color_callback, chain_button);
- align = gtk_alignment_new (0.0, 0.5, 0, 0);
- gtk_container_add (GTK_CONTAINER (align), hcolor_button);
- gtk_table_attach_defaults (GTK_TABLE (table), align, 0, 1, 1, 2);
- gtk_widget_show (hcolor_button);
- gtk_widget_show (align);
-
- vcolor_button = gimp_color_button_new (_("Vertical Color"), COLOR_BUTTON_WIDTH, 16,
- grid_cfg.vcolor, 4);
- gtk_signal_connect (GTK_OBJECT (vcolor_button), "color_changed",
- (GtkSignalFunc) color_callback, chain_button);
- align = gtk_alignment_new (0.0, 0.5, 0, 0);
- gtk_container_add (GTK_CONTAINER (align), vcolor_button);
- gtk_table_attach_defaults (GTK_TABLE (table), align, 1, 2, 1, 2);
- gtk_widget_show (vcolor_button);
- gtk_widget_show (align);
-
- button = gimp_color_button_new (_("Intersection Color"), COLOR_BUTTON_WIDTH, 16,
- grid_cfg.icolor, 4);
- align = gtk_alignment_new (0.0, 0.5, 0, 0);
- gtk_container_add (GTK_CONTAINER (align), button);
- gtk_table_attach_defaults (GTK_TABLE (table), align, 2, 3, 1, 2);
- gtk_widget_show (button);
- gtk_widget_show (align);
- gtk_widget_show (table);
-
- abox = gtk_alignment_new (1.0, 0.5, 0.0, 0.0);
- gtk_container_add (GTK_CONTAINER (abox), offset);
- gtk_box_pack_start (GTK_BOX (main_vbox), abox, FALSE, FALSE, 4);
- gtk_widget_show (offset);
- gtk_widget_show (abox);
-
- gtk_widget_show (main_hbox);
- gtk_widget_show (dlg);
-
- gtk_object_set_data (GTK_OBJECT (dlg), "width", width);
- gtk_object_set_data (GTK_OBJECT (dlg), "space", space);
- gtk_object_set_data (GTK_OBJECT (dlg), "offset", offset);
-
- gtk_main ();
- gdk_flush ();
-
- return run_flag;
- }
-
- static GtkWidget *
- preview_widget (GimpDrawable *drawable)
- {
- gint size;
- GtkWidget *preview;
-
- preview = gtk_preview_new (GTK_PREVIEW_COLOR);
- fill_preview (preview, drawable);
- size = GTK_PREVIEW (preview)->rowstride * GTK_PREVIEW (preview)->buffer_height;
- preview_bits = g_malloc (size);
- memcpy (preview_bits, GTK_PREVIEW (preview)->buffer, size);
-
- return preview;
- }
-
- static void
- fill_preview (GtkWidget *widget,
- GimpDrawable *drawable)
- {
- GimpPixelRgn srcPR;
- gint width;
- gint height;
- gint x1, x2, y1, y2;
- gint bpp;
- gint x, y;
- guchar *src;
- gdouble r, g, b, a;
- gdouble c0, c1;
- guchar *p0, *p1;
- guchar *even, *odd;
-
- gimp_drawable_mask_bounds (drawable->id, &x1, &y1, &x2, &y2);
-
- if (x2 - x1 > PREVIEW_SIZE)
- x2 = x1 + PREVIEW_SIZE;
-
- if (y2 - y1 > PREVIEW_SIZE)
- y2 = y1 + PREVIEW_SIZE;
-
- width = x2 - x1;
- height = y2 - y1;
- bpp = gimp_drawable_bpp (drawable->id);
-
- if (width < 1 || height < 1)
- return;
-
- gtk_preview_size (GTK_PREVIEW (widget), width, height);
-
- gimp_pixel_rgn_init (&srcPR, drawable, x1, y1, x2, y2, FALSE, FALSE);
-
- even = g_malloc (width * 3);
- odd = g_malloc (width * 3);
- src = g_malloc (width * bpp);
-
- for (y = 0; y < height; y++)
- {
- gimp_pixel_rgn_get_row (&srcPR, src, x1, y + y1, width);
- p0 = even;
- p1 = odd;
-
- for (x = 0; x < width; x++)
- {
- if (bpp == 4)
- {
- r = ((gdouble)src[x*4+0]) / 255.0;
- g = ((gdouble)src[x*4+1]) / 255.0;
- b = ((gdouble)src[x*4+2]) / 255.0;
- a = ((gdouble)src[x*4+3]) / 255.0;
- }
- else if (bpp == 3)
- {
- r = ((gdouble)src[x*3+0]) / 255.0;
- g = ((gdouble)src[x*3+1]) / 255.0;
- b = ((gdouble)src[x*3+2]) / 255.0;
- a = 1.0;
- }
- else
- {
- r = ((gdouble)src[x*bpp+0]) / 255.0;
- g = b = r;
- if (bpp == 2)
- a = ((gdouble)src[x*bpp+1]) / 255.0;
- else
- a = 1.0;
- }
-
- if ((x / GIMP_CHECK_SIZE) & 1)
- {
- c0 = GIMP_CHECK_LIGHT;
- c1 = GIMP_CHECK_DARK;
- }
- else
- {
- c0 = GIMP_CHECK_DARK;
- c1 = GIMP_CHECK_LIGHT;
- }
-
- *p0++ = (c0 + (r - c0) * a) * 255.0;
- *p0++ = (c0 + (g - c0) * a) * 255.0;
- *p0++ = (c0 + (b - c0) * a) * 255.0;
-
- *p1++ = (c1 + (r - c1) * a) * 255.0;
- *p1++ = (c1 + (g - c1) * a) * 255.0;
- *p1++ = (c1 + (b - c1) * a) * 255.0;
-
- } /* for */
-
- if ((y / GIMP_CHECK_SIZE) & 1)
- gtk_preview_draw_row (GTK_PREVIEW (widget), (guchar *)odd, 0, y, width);
- else
- gtk_preview_draw_row (GTK_PREVIEW (widget), (guchar *)even, 0, y, width);
- }
-
- g_free (even);
- g_free (odd);
- g_free (src);
- }
-