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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 <string.h>
-
- #include <gtk/gtk.h>
-
- #include "apptypes.h"
-
- #include "appenv.h"
- #include "dialog_handler.h"
- #include "gimpcontext.h"
- #include "gimpdnd.h"
- #include "gimpui.h"
- #include "patterns.h"
- #include "pattern_select.h"
- #include "session.h"
-
- #include "config.h"
- #include "libgimp/gimpintl.h"
-
- #define MIN_CELL_SIZE 32
- #define MAX_CELL_SIZE 45
-
- #define STD_PATTERN_COLUMNS 6
- #define STD_PATTERN_ROWS 5
-
- /* how long to wait after mouse-down before showing pattern popup */
- #define POPUP_DELAY_MS 150
-
- #define MAX_WIN_WIDTH(psp) (MIN_CELL_SIZE * (psp)->NUM_PATTERN_COLUMNS)
- #define MAX_WIN_HEIGHT(psp) (MIN_CELL_SIZE * (psp)->NUM_PATTERN_ROWS)
- #define MARGIN_WIDTH 1
- #define MARGIN_HEIGHT 1
-
- #define PATTERN_EVENT_MASK GDK_BUTTON1_MOTION_MASK | \
- GDK_EXPOSURE_MASK | \
- GDK_BUTTON_PRESS_MASK | \
- GDK_ENTER_NOTIFY_MASK
-
- /* local function prototypes */
- static void pattern_change_callbacks (PatternSelect *psp,
- gboolean closing);
-
- static GPattern * pattern_select_drag_pattern (GtkWidget *widget,
- gpointer data);
- static void pattern_select_drop_pattern (GtkWidget *widget,
- GPattern *pattern,
- gpointer data);
- static void pattern_select_pattern_changed (GimpContext *context,
- GPattern *pattern,
- PatternSelect *psp);
- static void pattern_select_select (PatternSelect *psp,
- GPattern *pattern);
-
- static gboolean pattern_popup_timeout (gpointer data);
- static void pattern_popup_open (PatternSelect *psp,
- gint, gint, GPattern *);
- static void pattern_popup_close (PatternSelect *);
-
- static void display_setup (PatternSelect *);
- static void display_pattern (PatternSelect *, GPattern *,
- gint, gint);
- static void display_patterns (PatternSelect *);
-
- static void pattern_select_show_selected (PatternSelect *, gint, gint);
- static void update_active_pattern_field (PatternSelect *);
- static void preview_calc_scrollbar (PatternSelect *);
-
- static gint pattern_select_resize (GtkWidget *, GdkEvent *,
- PatternSelect *);
- static gint pattern_select_events (GtkWidget *, GdkEvent *,
- PatternSelect *);
-
- static void pattern_select_scroll_update (GtkAdjustment *, gpointer);
-
- static void pattern_select_close_callback (GtkWidget *, gpointer);
- static void pattern_select_refresh_callback (GtkWidget *, gpointer);
-
- /* dnd stuff */
- static GtkTargetEntry preview_target_table[] =
- {
- GIMP_TARGET_PATTERN
- };
- static guint preview_n_targets = (sizeof (preview_target_table) /
- sizeof (preview_target_table[0]));
-
- /* The main pattern selection dialog */
- PatternSelect *pattern_select_dialog = NULL;
-
- /* local variables */
-
- /* List of active dialogs */
- GSList *pattern_active_dialogs = NULL;
-
- void
- pattern_dialog_create (void)
- {
- if (! pattern_select_dialog)
- {
- pattern_select_dialog = pattern_select_new (NULL, NULL);
- }
- else
- {
- if (!GTK_WIDGET_VISIBLE (pattern_select_dialog->shell))
- gtk_widget_show (pattern_select_dialog->shell);
- else
- gdk_window_raise (pattern_select_dialog->shell->window);
- }
- }
-
- void
- pattern_dialog_free ()
- {
- if (pattern_select_dialog)
- {
- session_get_window_info (pattern_select_dialog->shell,
- &pattern_select_session_info);
-
- pattern_select_free (pattern_select_dialog);
- pattern_select_dialog = NULL;
- }
- }
-
- /* If title == NULL then it is the main pattern dialog */
- PatternSelect *
- pattern_select_new (gchar *title,
- gchar *initial_pattern)
- {
- PatternSelect *psp;
- GtkWidget *vbox;
- GtkWidget *hbox;
- GtkWidget *frame;
- GtkWidget *sbar;
- GtkWidget *label_box;
-
- GPattern *active = NULL;
-
- static gboolean first_call = TRUE;
-
- psp = g_new (PatternSelect, 1);
- psp->preview = NULL;
- psp->callback_name = NULL;
- psp->dnd_pattern = NULL;
- psp->pattern_popup = NULL;
- psp->popup_timeout_tag = 0;
- psp->old_col = 0;
- psp->old_row = 0;
- psp->NUM_PATTERN_COLUMNS = STD_PATTERN_COLUMNS;
- psp->NUM_PATTERN_ROWS = STD_PATTERN_COLUMNS;
-
- /* The shell */
- psp->shell = gimp_dialog_new (title ? title : _("Pattern Selection"),
- "pattern_selection",
- gimp_standard_help_func,
- "dialogs/pattern_selection.html",
- title ? GTK_WIN_POS_MOUSE : GTK_WIN_POS_NONE,
- FALSE, TRUE, FALSE,
-
- _("Refresh"), pattern_select_refresh_callback,
- psp, NULL, NULL, FALSE, FALSE,
- _("Close"), pattern_select_close_callback,
- psp, NULL, NULL, TRUE, TRUE,
-
- NULL);
-
- if (title)
- {
- psp->context = gimp_context_new (title, NULL);
- }
- else
- {
- psp->context = gimp_context_get_user ();
-
- session_set_window_geometry (psp->shell, &pattern_select_session_info,
- TRUE);
- dialog_register (psp->shell);
- }
-
- if (no_data && first_call)
- patterns_init (FALSE);
-
- first_call = FALSE;
-
- if (title && initial_pattern && strlen (initial_pattern))
- {
- active = pattern_list_get_pattern (pattern_list, initial_pattern);
- }
- else
- {
- active = gimp_context_get_pattern (gimp_context_get_user ());
- }
-
- if (!active)
- {
- active = gimp_context_get_pattern (gimp_context_get_standard ());
- }
-
- if (title)
- {
- gimp_context_set_pattern (psp->context, active);
- }
-
- /* The main vbox */
- vbox = gtk_vbox_new (FALSE, 0);
- gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
- gtk_container_add (GTK_CONTAINER (GTK_DIALOG (psp->shell)->vbox), vbox);
-
- /* Options box */
- psp->options_box = gtk_vbox_new (FALSE, 0);
- gtk_box_pack_start (GTK_BOX (vbox), psp->options_box, FALSE, FALSE, 0);
-
- /* Create the active pattern label */
- label_box = gtk_hbox_new (FALSE, 0);
- gtk_box_pack_start (GTK_BOX (psp->options_box), label_box, FALSE, FALSE, 2);
-
- psp->pattern_name = gtk_label_new (_("No Patterns available"));
- gtk_box_pack_start (GTK_BOX (label_box), psp->pattern_name, FALSE, FALSE, 4);
- psp->pattern_size = gtk_label_new ("(0 X 0)");
- gtk_box_pack_start (GTK_BOX (label_box), psp->pattern_size, FALSE, FALSE, 2);
-
- gtk_widget_show (psp->pattern_name);
- gtk_widget_show (psp->pattern_size);
- gtk_widget_show (label_box);
-
- /* The horizontal box containing preview & scrollbar */
- hbox = gtk_hbox_new (FALSE, 2);
- gtk_box_pack_start (GTK_BOX (vbox), hbox, TRUE, TRUE, 0);
-
- frame = gtk_frame_new (NULL);
- gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
- gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
-
- psp->sbar_data =
- GTK_ADJUSTMENT (gtk_adjustment_new (0, 0, MAX_WIN_HEIGHT(psp),
- 1, 1, MAX_WIN_HEIGHT(psp)));
- sbar = gtk_vscrollbar_new (psp->sbar_data);
- gtk_signal_connect (GTK_OBJECT (psp->sbar_data), "value_changed",
- GTK_SIGNAL_FUNC (pattern_select_scroll_update),
- psp);
- gtk_box_pack_start (GTK_BOX (hbox), sbar, FALSE, FALSE, 0);
-
- /* Create the pattern preview window and the underlying image */
-
- /* Get the initial pattern extents */
- psp->cell_width = MIN_CELL_SIZE;
- psp->cell_height = MIN_CELL_SIZE;
-
- psp->preview = gtk_preview_new (GTK_PREVIEW_COLOR);
- gtk_preview_size (GTK_PREVIEW (psp->preview),
- MAX_WIN_WIDTH (psp), MAX_WIN_HEIGHT (psp));
- gtk_preview_set_expand (GTK_PREVIEW (psp->preview), TRUE);
- gtk_widget_set_events (psp->preview, PATTERN_EVENT_MASK);
-
- gtk_signal_connect (GTK_OBJECT (psp->preview), "event",
- GTK_SIGNAL_FUNC (pattern_select_events),
- psp);
- gtk_signal_connect (GTK_OBJECT (psp->preview), "size_allocate",
- GTK_SIGNAL_FUNC (pattern_select_resize),
- psp);
-
- /* dnd stuff */
- gtk_drag_source_set (psp->preview,
- GDK_BUTTON2_MASK,
- preview_target_table, preview_n_targets,
- GDK_ACTION_COPY);
- gimp_dnd_pattern_source_set (psp->preview, pattern_select_drag_pattern, psp);
-
- gtk_drag_dest_set (psp->preview,
- GTK_DEST_DEFAULT_ALL,
- preview_target_table, preview_n_targets,
- GDK_ACTION_COPY);
- gimp_dnd_pattern_dest_set (psp->preview, pattern_select_drop_pattern, psp);
-
- gtk_container_add (GTK_CONTAINER (frame), psp->preview);
- gtk_widget_show (psp->preview);
-
- gtk_widget_show (sbar);
- gtk_widget_show (hbox);
- gtk_widget_show (frame);
-
- gtk_widget_show (psp->options_box);
- gtk_widget_show (vbox);
- gtk_widget_show (psp->shell);
-
- preview_calc_scrollbar (psp);
-
- gtk_signal_connect (GTK_OBJECT (psp->context), "pattern_changed",
- GTK_SIGNAL_FUNC (pattern_select_pattern_changed),
- psp);
-
- if (active)
- pattern_select_select (psp, active);
-
- /* Add to active pattern dialogs list */
- pattern_active_dialogs = g_slist_append (pattern_active_dialogs, psp);
-
- return psp;
- }
-
- void
- pattern_select_free (PatternSelect *psp)
- {
- if (!psp)
- return;
-
- /* remove from active list */
- pattern_active_dialogs = g_slist_remove (pattern_active_dialogs, psp);
-
- gtk_signal_disconnect_by_data (GTK_OBJECT (psp->context), psp);
-
- if (psp->pattern_popup != NULL)
- gtk_widget_destroy (psp->pattern_popup);
-
- if (psp->popup_timeout_tag != 0)
- gtk_timeout_remove (psp->popup_timeout_tag);
-
- if (psp->callback_name)
- {
- g_free (psp->callback_name);
- gtk_object_unref (GTK_OBJECT (psp->context));
- }
-
- g_free (psp);
- }
-
- /* Call this dialog's PDB callback */
-
- static void
- pattern_change_callbacks (PatternSelect *psp,
- gboolean closing)
- {
- gchar *name;
- ProcRecord *prec = NULL;
- GPattern *pattern;
- gint nreturn_vals;
- static gboolean busy = FALSE;
-
- /* Any procs registered to callback? */
- Argument *return_vals;
-
- if (!psp || !psp->callback_name || busy)
- return;
-
- busy = TRUE;
- name = psp->callback_name;
- pattern = gimp_context_get_pattern (psp->context);
-
- /* If its still registered run it */
- prec = procedural_db_lookup (name);
-
- if (prec && pattern)
- {
- return_vals =
- procedural_db_run_proc (name,
- &nreturn_vals,
- PDB_STRING, pattern->name,
- PDB_INT32, pattern->mask->width,
- PDB_INT32, pattern->mask->height,
- PDB_INT32, pattern->mask->bytes,
- PDB_INT32, pattern->mask->bytes*pattern->mask->height*pattern->mask->width,
- PDB_INT8ARRAY, temp_buf_data (pattern->mask),
- PDB_INT32, (gint) closing,
- PDB_END);
-
- if (!return_vals || return_vals[0].value.pdb_int != PDB_SUCCESS)
- g_warning ("failed to run pattern callback function");
-
- procedural_db_destroy_args (return_vals, nreturn_vals);
- }
- busy = FALSE;
- }
-
- /* Close active dialogs that no longer have PDB registered for them */
-
- void
- patterns_check_dialogs (void)
- {
- PatternSelect *psp;
- GSList *list;
- gchar *name;
- ProcRecord *prec = NULL;
-
- list = pattern_active_dialogs;
-
- while (list)
- {
- psp = (PatternSelect *) list->data;
- list = g_slist_next (list);
-
- name = psp->callback_name;
-
- if (name)
- {
- prec = procedural_db_lookup (name);
-
- if (!prec)
- {
- /* Can alter pattern_active_dialogs list */
- pattern_select_close_callback (NULL, psp);
- }
- }
- }
- }
-
- /*
- * Local functions
- */
-
- static GPattern *
- pattern_select_drag_pattern (GtkWidget *widget,
- gpointer data)
- {
- PatternSelect *psp;
-
- psp = (PatternSelect *) data;
-
- return psp->dnd_pattern;
- }
-
- static void
- pattern_select_drop_pattern (GtkWidget *widget,
- GPattern *pattern,
- gpointer data)
- {
- PatternSelect *psp;
-
- psp = (PatternSelect *) data;
-
- gimp_context_set_pattern (psp->context, pattern);
- }
-
- static void
- pattern_select_pattern_changed (GimpContext *context,
- GPattern *pattern,
- PatternSelect *psp)
- {
- if (pattern)
- {
- pattern_select_select (psp, pattern);
-
- if (psp->callback_name)
- pattern_change_callbacks (psp, FALSE);
- }
- }
-
- static void
- pattern_select_select (PatternSelect *psp,
- GPattern *pattern)
- {
- gint index;
- gint row, col;
- gint scroll_offset = 0;
-
- index = pattern->index;
-
- if (index < 0)
- return;
-
- update_active_pattern_field (psp);
-
- row = index / psp->NUM_PATTERN_COLUMNS;
- col = index - row * psp->NUM_PATTERN_COLUMNS;
-
- /* check if the new active pattern is already in the preview */
- if (((row + 1) * psp->cell_height) >
- (psp->preview->allocation.height + psp->scroll_offset))
- {
- scroll_offset = (((row + 1) * psp->cell_height) -
- (psp->scroll_offset + psp->preview->allocation.height));
- }
- else if ((row * psp->cell_height) < psp->scroll_offset)
- {
- scroll_offset = (row * psp->cell_height) - psp->scroll_offset;
- }
- else
- {
- pattern_select_show_selected (psp, row, col);
- }
-
- gtk_adjustment_set_value (psp->sbar_data, psp->scroll_offset + scroll_offset);
- }
-
- typedef struct
- {
- PatternSelect *psp;
- int x;
- int y;
- GPattern *pattern;
- } popup_timeout_args_t;
-
-
- static gboolean
- pattern_popup_timeout (gpointer data)
- {
- popup_timeout_args_t *args = data;
- PatternSelect *psp = args->psp;
- GPattern *pattern = args->pattern;
- gint x, y;
- gint x_org, y_org;
- gint scr_w, scr_h;
- gchar *src, *buf;
-
- /* timeout has gone off so our tag is now invalid */
- psp->popup_timeout_tag = 0;
-
- /* make sure the popup exists and is not visible */
- if (psp->pattern_popup == NULL)
- {
- GtkWidget *frame;
- psp->pattern_popup = gtk_window_new (GTK_WINDOW_POPUP);
- gtk_window_set_policy (GTK_WINDOW (psp->pattern_popup),
- FALSE, FALSE, TRUE);
- frame = gtk_frame_new (NULL);
- gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
- gtk_container_add (GTK_CONTAINER (psp->pattern_popup), frame);
- gtk_widget_show (frame);
- psp->pattern_preview = gtk_preview_new (GTK_PREVIEW_COLOR);
- gtk_container_add (GTK_CONTAINER (frame), psp->pattern_preview);
- gtk_widget_show (psp->pattern_preview);
- }
- else
- {
- gtk_widget_hide (psp->pattern_popup);
- }
-
- /* decide where to put the popup */
- gdk_window_get_origin (psp->preview->window, &x_org, &y_org);
- scr_w = gdk_screen_width ();
- scr_h = gdk_screen_height ();
- x = x_org + args->x - pattern->mask->width * 0.5;
- y = y_org + args->y - pattern->mask->height * 0.5;
- x = (x < 0) ? 0 : x;
- y = (y < 0) ? 0 : y;
- x = (x + pattern->mask->width > scr_w) ? scr_w - pattern->mask->width : x;
- y = (y + pattern->mask->height > scr_h) ? scr_h - pattern->mask->height : y;
- gtk_preview_size (GTK_PREVIEW (psp->pattern_preview),
- pattern->mask->width, pattern->mask->height);
- gtk_widget_popup (psp->pattern_popup, x, y);
-
- /* Draw the pattern */
- buf = g_new (gchar, pattern->mask->width * 3);
- src = (gchar *)temp_buf_data (pattern->mask);
- for (y = 0; y < pattern->mask->height; y++)
- {
- if (pattern->mask->bytes == 1)
- for (x = 0; x < pattern->mask->width; x++)
- {
- buf[x*3+0] = src[x];
- buf[x*3+1] = src[x];
- buf[x*3+2] = src[x];
- }
- else
- for (x = 0; x < pattern->mask->width; x++)
- {
- buf[x*3+0] = src[x*3+0];
- buf[x*3+1] = src[x*3+1];
- buf[x*3+2] = src[x*3+2];
- }
- gtk_preview_draw_row (GTK_PREVIEW (psp->pattern_preview), (guchar *)buf, 0, y, pattern->mask->width);
- src += pattern->mask->width * pattern->mask->bytes;
- }
- g_free (buf);
-
- /* Draw the pattern preview */
- gtk_widget_draw (psp->pattern_preview, NULL);
-
- return FALSE; /* don't repeat */
- }
-
- static void
- pattern_popup_open (PatternSelect *psp,
- gint x,
- gint y,
- GPattern *pattern)
- {
- static popup_timeout_args_t popup_timeout_args;
-
- /* if we've already got a timeout scheduled, then we complain */
- g_return_if_fail (psp->popup_timeout_tag == 0);
-
- popup_timeout_args.psp = psp;
- popup_timeout_args.x = x;
- popup_timeout_args.y = y;
- popup_timeout_args.pattern = pattern;
- psp->popup_timeout_tag = gtk_timeout_add (POPUP_DELAY_MS,
- pattern_popup_timeout,
- &popup_timeout_args);
- }
-
- static void
- pattern_popup_close (PatternSelect *psp)
- {
- if (psp->popup_timeout_tag != 0)
- gtk_timeout_remove (psp->popup_timeout_tag);
- psp->popup_timeout_tag = 0;
-
- if (psp->pattern_popup != NULL)
- gtk_widget_hide (psp->pattern_popup);
- }
-
- static void
- display_setup (PatternSelect *psp)
- {
- guchar * buf;
- gint i;
-
- buf = g_new (guchar, 3 * psp->preview->allocation.width);
-
- /* Set the buffer to white */
- memset (buf, 255, psp->preview->allocation.width * 3);
-
- /* Set the image buffer to white */
- for (i = 0; i < psp->preview->allocation.height; i++)
- gtk_preview_draw_row (GTK_PREVIEW (psp->preview), buf, 0, i,
- psp->preview->allocation.width);
-
- g_free (buf);
- }
-
- static void
- display_pattern (PatternSelect *psp,
- GPattern *pattern,
- gint col,
- gint row)
- {
- TempBuf * pattern_buf;
- guchar * src, *s;
- guchar * buf, *b;
- gint cell_width, cell_height;
- gint width, height;
- gint rowstride;
- gint offset_x, offset_y;
- gint yend;
- gint ystart;
- gint i, j;
-
- buf = g_new (guchar, psp->cell_width * 3);
-
- pattern_buf = pattern->mask;
-
- /* calculate the offset into the image */
- cell_width = psp->cell_width - 2*MARGIN_WIDTH;
- cell_height = psp->cell_height - 2*MARGIN_HEIGHT;
- width = (pattern_buf->width > cell_width) ? cell_width :
- pattern_buf->width;
- height = (pattern_buf->height > cell_height) ? cell_height :
- pattern_buf->height;
-
- offset_x = col * psp->cell_width + ((cell_width - width) >> 1) + MARGIN_WIDTH;
- offset_y = row * psp->cell_height + ((cell_height - height) >> 1)
- - psp->scroll_offset + MARGIN_HEIGHT;
-
- ystart = CLAMP (offset_y, 0, psp->preview->allocation.height);
- yend = CLAMP (offset_y + height, 0, psp->preview->allocation.height);
-
- /* Get the pointer into the pattern mask data */
- rowstride = pattern_buf->width * pattern_buf->bytes;
- src = temp_buf_data (pattern_buf) + (ystart - offset_y) * rowstride;
-
- for (i = ystart; i < yend; i++)
- {
- s = src;
- b = buf;
-
- if (pattern_buf->bytes == 1)
- for (j = 0; j < width; j++)
- {
- *b++ = *s;
- *b++ = *s;
- *b++ = *s++;
- }
- else
- for (j = 0; j < width; j++)
- {
- *b++ = *s++;
- *b++ = *s++;
- *b++ = *s++;
- }
-
- gtk_preview_draw_row (GTK_PREVIEW (psp->preview), buf, offset_x, i, width);
-
- src += rowstride;
- }
-
- g_free (buf);
- }
-
- static void
- display_patterns (PatternSelect *psp)
- {
- GSList *list = pattern_list; /* the global pattern list */
- gint row, col;
- GPattern *pattern;
-
- if (list == NULL)
- {
- gtk_widget_set_sensitive (psp->options_box, FALSE);
- return;
- }
- else
- {
- gtk_widget_set_sensitive (psp->options_box, TRUE);
- }
-
- /* setup the display area */
- display_setup (psp);
-
- row = col = 0;
- for (; list; list = g_slist_next (list))
- {
- pattern = (GPattern *) list->data;
-
- /* Display the pattern */
- display_pattern (psp, pattern, col, row);
-
- /* increment the counts */
- if (++col == psp->NUM_PATTERN_COLUMNS)
- {
- row ++;
- col = 0;
- }
- }
- }
-
- static void
- pattern_select_show_selected (PatternSelect *psp,
- gint row,
- gint col)
- {
- GdkRectangle area;
- guchar * buf;
- gint yend;
- gint ystart;
- gint offset_x, offset_y;
- gint i;
-
- buf = g_new (guchar, 3 * psp->cell_width);
-
- if (psp->old_col != col || psp->old_row != row)
- {
- /* remove the old selection */
- offset_x = psp->old_col * psp->cell_width;
- offset_y = psp->old_row * psp->cell_height - psp->scroll_offset;
-
- ystart = CLAMP (offset_y , 0, psp->preview->allocation.height);
- yend = CLAMP (offset_y + psp->cell_height, 0, psp->preview->allocation.height);
-
- /* set the buf to white */
- memset (buf, 255, 3 * psp->cell_width);
-
- for (i = ystart; i < yend; i++)
- {
- if (i == offset_y || i == (offset_y + psp->cell_height - 1))
- gtk_preview_draw_row (GTK_PREVIEW (psp->preview), buf,
- offset_x, i, psp->cell_width);
- else
- {
- gtk_preview_draw_row (GTK_PREVIEW (psp->preview), buf,
- offset_x, i, 1);
- gtk_preview_draw_row (GTK_PREVIEW (psp->preview), buf,
- offset_x + psp->cell_width - 1, i, 1);
- }
- }
-
- area.x = offset_x;
- area.y = ystart;
- area.width = psp->cell_width;
- area.height = yend - ystart;
- gtk_widget_draw (psp->preview, &area);
- }
-
- /* make the new selection */
- offset_x = col * psp->cell_width;
- offset_y = row * psp->cell_height - psp->scroll_offset;
-
- ystart = CLAMP (offset_y , 0, psp->preview->allocation.height);
- yend = CLAMP (offset_y + psp->cell_height, 0, psp->preview->allocation.height);
-
- /* set the buf to black */
- memset (buf, 0, psp->cell_width * 3);
-
- for (i = ystart; i < yend; i++)
- {
- if (i == offset_y || i == (offset_y + psp->cell_height - 1))
- gtk_preview_draw_row (GTK_PREVIEW (psp->preview), buf,
- offset_x, i, psp->cell_width);
- else
- {
- gtk_preview_draw_row (GTK_PREVIEW (psp->preview), buf,
- offset_x, i, 1);
- gtk_preview_draw_row (GTK_PREVIEW (psp->preview), buf,
- offset_x + psp->cell_width - 1, i, 1);
- }
- }
-
- area.x = offset_x;
- area.y = ystart;
- area.width = psp->cell_width;
- area.height = yend - ystart;
- gtk_widget_draw (psp->preview, &area);
-
- psp->old_row = row;
- psp->old_col = col;
-
- g_free (buf);
- }
-
- static void
- update_active_pattern_field (PatternSelect *psp)
- {
- GPattern *pattern;
- gchar buf[32];
-
- pattern = gimp_context_get_pattern (psp->context);
-
- if (!pattern)
- return;
-
- /* Set pattern name */
- gtk_label_set_text (GTK_LABEL (psp->pattern_name), pattern->name);
-
- /* Set pattern size */
- g_snprintf (buf, sizeof (buf), "(%d X %d)",
- pattern->mask->width, pattern->mask->height);
- gtk_label_set_text (GTK_LABEL (psp->pattern_size), buf);
- }
-
- static void
- preview_calc_scrollbar (PatternSelect *psp)
- {
- gint num_rows;
- gint page_size;
- gint max;
-
- psp->scroll_offset = 0;
- num_rows = ((num_patterns + psp->NUM_PATTERN_COLUMNS - 1) /
- psp->NUM_PATTERN_COLUMNS);
- max = num_rows * psp->cell_width;
- if (!num_rows)
- num_rows = 1;
- page_size = psp->preview->allocation.height;
-
- psp->sbar_data->value = psp->scroll_offset;
- psp->sbar_data->upper = max;
- psp->sbar_data->page_size = (page_size < max) ? page_size : max;
- psp->sbar_data->page_increment = (page_size >> 1);
- psp->sbar_data->step_increment = psp->cell_width;
-
- gtk_signal_emit_by_name (GTK_OBJECT (psp->sbar_data), "changed");
- gtk_signal_emit_by_name (GTK_OBJECT (psp->sbar_data), "value_changed");
- }
-
- static gint
- pattern_select_resize (GtkWidget *widget,
- GdkEvent *event,
- PatternSelect *psp)
- {
- /* calculate the best-fit approximation... */
- gint wid;
- gint now;
- gint cell_size;
-
- wid = widget->allocation.width;
-
- for (now = cell_size = MIN_CELL_SIZE;
- now < MAX_CELL_SIZE; ++now)
- {
- if ((wid % now) < (wid % cell_size)) cell_size = now;
- if ((wid % cell_size) == 0)
- break;
- }
-
- psp->NUM_PATTERN_COLUMNS =
- (gint) (wid / cell_size);
- psp->NUM_PATTERN_ROWS =
- (gint) ((num_patterns + psp->NUM_PATTERN_COLUMNS - 1) /
- psp->NUM_PATTERN_COLUMNS);
-
- psp->cell_width = cell_size;
- psp->cell_height = cell_size;
-
- /* recalculate scrollbar extents */
- preview_calc_scrollbar (psp);
-
- return FALSE;
- }
-
- static gint
- pattern_select_events (GtkWidget *widget,
- GdkEvent *event,
- PatternSelect *psp)
- {
- GdkEventButton *bevent;
- GPattern *pattern;
- int row, col, index;
-
- switch (event->type)
- {
- case GDK_BUTTON_PRESS:
- bevent = (GdkEventButton *) event;
-
- col = bevent->x / psp->cell_width;
- row = (bevent->y + psp->scroll_offset) / psp->cell_height;
- index = row * psp->NUM_PATTERN_COLUMNS + col;
-
- pattern = pattern_list_get_pattern_by_index (pattern_list, index);
-
- if (pattern)
- psp->dnd_pattern = pattern;
- else
- psp->dnd_pattern = gimp_context_get_pattern (psp->context);
-
- if (bevent->button == 1)
- {
- /* Get the pattern and display the popup pattern preview */
- if (pattern)
- {
- gdk_pointer_grab (psp->preview->window, FALSE,
- (GDK_POINTER_MOTION_HINT_MASK |
- GDK_BUTTON1_MOTION_MASK |
- GDK_BUTTON_RELEASE_MASK),
- NULL, NULL, bevent->time);
-
- /* Make this pattern the active pattern */
- gimp_context_set_pattern (psp->context, pattern);
-
- /* Show the pattern popup window if the pattern is too large */
- if (pattern->mask->width > psp->cell_width ||
- pattern->mask->height > psp->cell_height)
- {
- pattern_popup_open (psp, bevent->x, bevent->y, pattern);
- }
- }
- }
-
- /* wheelmouse support */
- else if (bevent->button == 4)
- {
- GtkAdjustment *adj = psp->sbar_data;
- gfloat new_value = adj->value - adj->page_increment / 2;
- new_value =
- CLAMP (new_value, adj->lower, adj->upper - adj->page_size);
- gtk_adjustment_set_value (adj, new_value);
- }
- else if (bevent->button == 5)
- {
- GtkAdjustment *adj = psp->sbar_data;
- gfloat new_value = adj->value + adj->page_increment / 2;
- new_value =
- CLAMP (new_value, adj->lower, adj->upper - adj->page_size);
- gtk_adjustment_set_value (adj, new_value);
- }
-
- break;
-
- case GDK_BUTTON_RELEASE:
- bevent = (GdkEventButton *) event;
-
- if (bevent->button == 1)
- {
- /* Ungrab the pointer */
- gdk_pointer_ungrab (bevent->time);
-
- /* Close the brush popup window */
- pattern_popup_close (psp);
- }
- break;
-
- default:
- break;
- }
-
- return FALSE;
- }
-
- static void
- pattern_select_scroll_update (GtkAdjustment *adjustment,
- gpointer data)
- {
- PatternSelect *psp;
- GPattern *active;
- gint row, col, index;
-
- psp = (PatternSelect *) data;
-
- if (psp)
- {
- psp->scroll_offset = adjustment->value;
-
- display_patterns (psp);
-
- active = gimp_context_get_pattern (psp->context);
-
- if (active)
- {
- index = active->index;
- if (index < 0)
- return;
- row = index / psp->NUM_PATTERN_COLUMNS;
- col = index - row * psp->NUM_PATTERN_COLUMNS;
-
- pattern_select_show_selected (psp, row, col);
- }
-
- gtk_widget_draw (psp->preview, NULL);
- }
- }
-
- static void
- pattern_select_close_callback (GtkWidget *widget,
- gpointer data)
- {
- PatternSelect *psp;
-
- psp = (PatternSelect *) data;
-
- if (GTK_WIDGET_VISIBLE (psp->shell))
- gtk_widget_hide (psp->shell);
-
- /* Free memory if poping down dialog which is not the main one */
- if (psp != pattern_select_dialog)
- {
- /* Send data back */
- pattern_change_callbacks (psp, TRUE);
- gtk_widget_destroy (psp->shell);
- pattern_select_free (psp);
- }
- }
-
- static void
- pattern_select_refresh_callback (GtkWidget *widget,
- gpointer data)
- {
- PatternSelect *psp;
- GSList *list;
-
- /* re-init the pattern list */
- patterns_init (FALSE);
-
- for (list = pattern_active_dialogs; list; list = g_slist_next (list))
- {
- psp = (PatternSelect *) list->data;
-
- /* recalculate scrollbar extents */
- preview_calc_scrollbar (psp);
- }
- }
-