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gimp/app/brush_select.c

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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 <string.h>
#include "appenv.h"
#include "actionarea.h"
#include "gimpbrushlist.h"
#include "gimplist.h"
#include "gimpbrushgenerated.h"
#include "brush_edit.h"
#include "brush_select.h"
#include "colormaps.h"
#include "disp_callbacks.h"
#include "errors.h"
#include "paint_options.h"
#include "session.h"
#include "libgimp/gimpintl.h"
#define MIN_CELL_SIZE 24
#define MAX_CELL_SIZE 24 /* disable variable brush preview size */
#define STD_BRUSH_COLUMNS 5
#define STD_BRUSH_ROWS 5
/* how long to wait after mouse-down before showing pattern popup */
#define POPUP_DELAY_MS 150
#define MAX_WIN_WIDTH(bsp) (MIN_CELL_SIZE * ((bsp)->NUM_BRUSH_COLUMNS))
#define MAX_WIN_HEIGHT(bsp) (MIN_CELL_SIZE * ((bsp)->NUM_BRUSH_ROWS))
#define MARGIN_WIDTH 3
#define MARGIN_HEIGHT 3
#define BRUSH_EVENT_MASK GDK_EXPOSURE_MASK | \
GDK_BUTTON_PRESS_MASK | \
GDK_BUTTON_RELEASE_MASK | \
GDK_BUTTON1_MOTION_MASK | \
GDK_ENTER_NOTIFY_MASK
/* local function prototypes */
static void brush_popup_open (BrushSelectP, int, int, GimpBrushP);
static void brush_popup_close (BrushSelectP);
static void display_brush (BrushSelectP, GimpBrushP, int, int);
static void display_brushes (BrushSelectP);
static void display_setup (BrushSelectP);
static void preview_calc_scrollbar (BrushSelectP);
static void brush_select_show_selected (BrushSelectP, int, int);
static void update_active_brush_field (BrushSelectP);
static gint edit_brush_callback (GtkWidget *w, GdkEvent *e,
gpointer data);
static gint new_brush_callback (GtkWidget *w, GdkEvent *e,
gpointer data);
static gint brush_select_brush_dirty_callback(GimpBrushP brush,
BrushSelectP bsp);
static void connect_signals_to_brush (GimpBrushP brush,
BrushSelectP bsp);
static void disconnect_signals_from_brush(GimpBrushP brush,
BrushSelectP bsp);
static void brush_added_callback (GimpBrushList *list,
GimpBrushP brush,
BrushSelectP bsp);
static void brush_removed_callback (GimpBrushList *list,
GimpBrushP brush,
BrushSelectP bsp);
/* static void brush_select_map_callback (GtkWidget *, BrushSelectP); */
static void brush_select_close_callback (GtkWidget *, gpointer);
static void brush_select_refresh_callback(GtkWidget *, gpointer);
static void paint_mode_menu_callback (GtkWidget *, gpointer);
static gint brush_select_events (GtkWidget *, GdkEvent *, BrushSelectP);
static gint brush_select_resize (GtkWidget *, GdkEvent *, BrushSelectP);
static gint brush_select_delete_callback (GtkWidget *, GdkEvent *, gpointer);
static void preview_scroll_update (GtkAdjustment *, gpointer);
static void opacity_scale_update (GtkAdjustment *, gpointer);
static void spacing_scale_update (GtkAdjustment *, gpointer);
/* local variables */
/* List of active dialogs */
GSList *brush_active_dialogs = NULL;
/* Brush editor dialog (main brush dialog only) */
static BrushEditGeneratedWindow *brush_edit_generated_dialog;
/* If title == NULL then it is the main brush dialog */
BrushSelectP
brush_select_new (gchar *title,
/* These are the required initial vals
* If init_name == NULL then use current brush
*/
gchar *init_name,
gdouble init_opacity,
gint init_spacing,
gint init_mode)
{
BrushSelectP bsp;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *frame;
GtkWidget *sbar;
GtkWidget *label;
GtkWidget *sep;
GtkWidget *table;
GtkWidget *abox;
GtkWidget *util_box;
GtkWidget *option_menu;
GtkWidget *menu;
GtkWidget *slider;
GtkWidget *button2;
GimpBrushP active = NULL;
gint gotinitbrush = FALSE;
static ActionAreaItem action_items[] =
{
{ N_("Refresh"), brush_select_refresh_callback, NULL, NULL },
{ N_("Close"), brush_select_close_callback, NULL, NULL }
};
bsp = g_malloc (sizeof (_BrushSelect));
bsp->redraw = TRUE;
bsp->scroll_offset = 0;
bsp->callback_name = 0;
bsp->old_row = bsp->old_col = 0;
bsp->brush = NULL; /* NULL -> main dialog window */
bsp->brush_popup = NULL;
bsp->popup_timeout_tag = 0;
bsp->NUM_BRUSH_COLUMNS = STD_BRUSH_COLUMNS;
bsp->NUM_BRUSH_ROWS = STD_BRUSH_ROWS;
/* The shell and main vbox */
bsp->shell = gtk_dialog_new ();
gtk_window_set_wmclass (GTK_WINDOW (bsp->shell), "brushselection", "Gimp");
if (!title)
{
gtk_window_set_title (GTK_WINDOW (bsp->shell), _("Brush Selection"));
/* set dialog's size later because weird thing will happen if the
* size was not saved in the current paint options mode
*/
session_set_window_geometry (bsp->shell, &brush_select_session_info,
FALSE);
}
else
{
gtk_window_set_title (GTK_WINDOW (bsp->shell), title);
if (init_name && strlen (init_name))
active = gimp_brush_list_get_brush (brush_list, init_name);
if (active)
gotinitbrush = TRUE;
}
gtk_window_set_policy (GTK_WINDOW (bsp->shell), FALSE, TRUE, FALSE);
/* Handle the wm close signal */
gtk_signal_connect (GTK_OBJECT (bsp->shell), "delete_event",
GTK_SIGNAL_FUNC (brush_select_delete_callback),
bsp);
/* 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 (bsp->shell)->vbox), vbox);
/* The horizontal box containing the brush list & options box */
hbox = gtk_hbox_new (FALSE, 2);
gtk_container_add (GTK_CONTAINER (vbox), hbox);
/* A place holder for paint mode switching */
bsp->left_box = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), bsp->left_box, TRUE, TRUE, 0);
/* The hbox for the brush list */
bsp->brush_selection_box = gtk_hbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (bsp->left_box), bsp->brush_selection_box);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (bsp->brush_selection_box), frame,
TRUE, TRUE, 0);
bsp->sbar_data = GTK_ADJUSTMENT (gtk_adjustment_new (0, 0, MAX_WIN_HEIGHT(bsp), 1, 1, MAX_WIN_HEIGHT(bsp)));
sbar = gtk_vscrollbar_new (bsp->sbar_data);
gtk_signal_connect (GTK_OBJECT (bsp->sbar_data), "value_changed",
(GtkSignalFunc) preview_scroll_update, bsp);
gtk_box_pack_start (GTK_BOX (bsp->brush_selection_box), sbar, FALSE, FALSE, 0);
/* Create the brush preview window and the underlying image */
/* Get the maximum brush extents */
bsp->cell_width = MIN_CELL_SIZE;
bsp->cell_height = MIN_CELL_SIZE;
bsp->preview = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
gtk_preview_size (GTK_PREVIEW (bsp->preview),
MAX_WIN_WIDTH (bsp), MAX_WIN_HEIGHT (bsp));
gtk_widget_set_usize (bsp->preview,
MAX_WIN_WIDTH (bsp), MAX_WIN_HEIGHT (bsp));
gtk_preview_set_expand (GTK_PREVIEW (bsp->preview), TRUE);
gtk_widget_set_events (bsp->preview, BRUSH_EVENT_MASK);
gtk_signal_connect (GTK_OBJECT (bsp->preview), "event",
(GtkSignalFunc) brush_select_events,
bsp);
gtk_signal_connect (GTK_OBJECT(bsp->preview), "size_allocate",
(GtkSignalFunc) brush_select_resize,
bsp);
gtk_container_add (GTK_CONTAINER (frame), bsp->preview);
gtk_widget_show (bsp->preview);
gtk_widget_show (sbar);
gtk_widget_show (frame);
gtk_widget_show (bsp->brush_selection_box);
gtk_widget_show (bsp->left_box);
/* Options box */
bsp->options_box = gtk_vbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), bsp->options_box, FALSE, FALSE, 0);
/* Create the active brush label */
util_box = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (bsp->options_box), util_box, FALSE, FALSE, 2);
bsp->brush_name = gtk_label_new (_("Active"));
gtk_box_pack_start (GTK_BOX (util_box), bsp->brush_name, FALSE, FALSE, 4);
bsp->brush_size = gtk_label_new ("(0 X 0)");
gtk_box_pack_start (GTK_BOX (util_box), bsp->brush_size, FALSE, FALSE, 2);
gtk_widget_show (bsp->brush_name);
gtk_widget_show (bsp->brush_size);
gtk_widget_show (util_box);
/* A place holder for paint mode switching */
bsp->right_box = gtk_vbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (bsp->options_box), bsp->right_box, TRUE, TRUE, 0);
/* The vbox for the paint options */
bsp->paint_options_box = gtk_vbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (bsp->right_box), bsp->paint_options_box,
FALSE, FALSE, 0);
/* A separator before the paint options */
sep = gtk_hseparator_new ();
gtk_box_pack_start (GTK_BOX (bsp->paint_options_box), sep, FALSE, FALSE, 0);
gtk_widget_show (sep);
/* Create the frame and the table for the options */
table = gtk_table_new (2, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (bsp->paint_options_box), table, FALSE, FALSE, 2);
/* Create the opacity scale widget */
label = gtk_label_new (_("Opacity:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
bsp->opacity_data =
GTK_ADJUSTMENT (gtk_adjustment_new ((active)?(init_opacity*100.0):100.0,
0.0, 100.0, 1.0, 1.0, 0.0));
slider = gtk_hscale_new (bsp->opacity_data);
gtk_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
gtk_table_attach_defaults (GTK_TABLE (table), slider, 1, 2, 0, 1);
gtk_signal_connect (GTK_OBJECT (bsp->opacity_data), "value_changed",
(GtkSignalFunc) opacity_scale_update, bsp);
gtk_widget_show (slider);
/* Create the paint mode option menu */
label = gtk_label_new (_("Mode:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
abox = gtk_alignment_new (0.0, 0.5, 0.0, 0.0);
gtk_table_attach_defaults (GTK_TABLE (table), abox, 1, 2, 1, 2);
gtk_widget_show (abox);
menu = paint_mode_menu_new (paint_mode_menu_callback, (gpointer) bsp);
bsp->option_menu = option_menu = gtk_option_menu_new ();
gtk_container_add (GTK_CONTAINER (abox), option_menu);
gtk_widget_show (option_menu);
gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), menu);
gtk_widget_show (table);
gtk_widget_show (bsp->paint_options_box);
gtk_widget_show (bsp->right_box);
/* Create the edit/new buttons */
util_box = gtk_hbox_new (FALSE, 0);
gtk_box_pack_end (GTK_BOX (bsp->options_box), util_box, FALSE, FALSE, 4);
bsp->edit_button = gtk_button_new_with_label (_("Edit Brush"));
gtk_signal_connect (GTK_OBJECT (bsp->edit_button), "clicked",
(GtkSignalFunc) edit_brush_callback,
NULL);
gtk_box_pack_start (GTK_BOX (util_box), bsp->edit_button, TRUE, TRUE, 5);
button2 = gtk_button_new_with_label (_("New Brush"));
gtk_signal_connect (GTK_OBJECT (button2), "clicked",
(GtkSignalFunc) new_brush_callback,
NULL);
gtk_box_pack_start (GTK_BOX (util_box), button2, TRUE, TRUE, 6);
gtk_widget_show (bsp->edit_button);
gtk_widget_show (button2);
gtk_widget_show (util_box);
/* We can only edit in the main window! (for now) */
if (title)
{
gtk_widget_set_sensitive (bsp->edit_button, FALSE);
gtk_widget_set_sensitive (button2, FALSE);
}
/* Create the spacing scale widget */
table = gtk_table_new (1, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_box_pack_end (GTK_BOX (bsp->options_box), table, FALSE, FALSE, 2);
label = gtk_label_new (_("Spacing:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
bsp->spacing_data =
GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 1.0, 1000.0, 1.0, 1.0, 0.0));
slider = gtk_hscale_new (bsp->spacing_data);
gtk_table_attach_defaults (GTK_TABLE (table), slider, 1, 2, 0, 1);
gtk_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
gtk_signal_connect (GTK_OBJECT (bsp->spacing_data), "value_changed",
(GtkSignalFunc) spacing_scale_update, bsp);
gtk_widget_show (slider);
gtk_widget_show (table);
/* The action area */
action_items[0].user_data = bsp;
action_items[1].user_data = bsp;
if (title)
build_action_area (GTK_DIALOG (bsp->shell), &action_items[1], 1, 0);
else
build_action_area (GTK_DIALOG (bsp->shell), action_items, 2, 1);
gtk_widget_show (bsp->options_box);
gtk_widget_show (hbox);
gtk_widget_show (vbox);
/* Calculate the scrollbar */
if (no_data)
brushes_init (FALSE);
/* This is done by size_allocate anyway, which is much better */
preview_calc_scrollbar (bsp);
/* render the brushes into the newly created image structure */
display_brushes (bsp);
/* Only for main dialog */
if(!title)
{
/* add callbacks to keep the display area current */
gimp_list_foreach (GIMP_LIST (brush_list),
(GFunc) connect_signals_to_brush,
bsp);
gtk_signal_connect (GTK_OBJECT (brush_list), "add",
(GtkSignalFunc) brush_added_callback,
bsp);
gtk_signal_connect (GTK_OBJECT (brush_list), "remove",
(GtkSignalFunc) brush_removed_callback,
bsp);
/* set the preview's size in the callback
gtk_signal_connect (GTK_OBJECT (bsp->shell), "map",
GTK_SIGNAL_FUNC (brush_select_map_callback),
bsp);
*/
/* if we are in per-tool paint options mode, hide the paint options */
brush_select_show_paint_options (bsp, global_paint_options);
}
/* update the active selection */
if (!active)
active = get_active_brush ();
if (title)
{
bsp->brush = active;
}
if (active)
{
int old_value = bsp->redraw;
bsp->redraw = FALSE;
if (!gotinitbrush)
{
bsp->opacity_value = paint_options_get_opacity ();
bsp->spacing_value = gimp_brush_get_spacing (active);
bsp->paint_mode = paint_options_get_paint_mode ();
}
else
{
bsp->opacity_value = init_opacity;
bsp->paint_mode = init_mode;
}
brush_select_select (bsp, gimp_brush_list_get_brush_index (brush_list,
active));
if (gotinitbrush && init_spacing >= 0)
{
/* Use passed spacing instead of brushes default */
bsp->spacing_data->value = init_spacing;
gtk_signal_emit_by_name (GTK_OBJECT (bsp->spacing_data),
"value_changed");
}
bsp->redraw = old_value;
if (GIMP_IS_BRUSH_GENERATED (active))
gtk_widget_set_sensitive (bsp->edit_button, 1);
else
gtk_widget_set_sensitive (bsp->edit_button, 0);
}
/* Finally, show the dialog */
gtk_widget_show (bsp->shell);
return bsp;
}
void
brush_select_select (BrushSelectP bsp,
int index)
{
int row, col;
if (index < 0)
return;
update_active_brush_field (bsp);
row = index / bsp->NUM_BRUSH_COLUMNS;
col = index - row * (bsp->NUM_BRUSH_COLUMNS);
brush_select_show_selected (bsp, row, col);
}
void
brush_select_free (BrushSelectP bsp)
{
if (bsp)
{
/* Only main one is saved */
if (bsp == brush_select_dialog)
{
session_get_window_info (bsp->shell, &brush_select_session_info);
/* save the size of the preview */
brush_select_session_info.width = bsp->preview->allocation.width;
brush_select_session_info.height = bsp->preview->allocation.height;
}
if (bsp->brush_popup != NULL)
gtk_widget_destroy (bsp->brush_popup);
if (bsp->callback_name)
g_free (bsp->callback_name);
/* remove from active list */
brush_active_dialogs = g_slist_remove (brush_active_dialogs, bsp);
g_free (bsp);
}
}
void
brush_change_callbacks (BrushSelectP bsp,
gint closing)
{
gchar * name;
ProcRecord *prec = NULL;
GimpBrushP brush;
int nreturn_vals;
static int busy = 0;
/* Any procs registered to callback? */
Argument *return_vals;
if (!bsp || !bsp->callback_name || busy != 0)
return;
busy = 1;
name = bsp->callback_name;
brush = bsp->brush;
/* If its still registered run it */
prec = procedural_db_lookup (name);
if(prec && brush)
{
return_vals = procedural_db_run_proc (name,
&nreturn_vals,
PDB_STRING,brush->name,
PDB_FLOAT,bsp->opacity_value,
PDB_INT32,bsp->spacing_value,
PDB_INT32,(gint)bsp->paint_mode,
PDB_INT32,brush->mask->width,
PDB_INT32,brush->mask->height,
PDB_INT32,brush->mask->width * brush->mask->height,
PDB_INT8ARRAY,temp_buf_data (brush->mask),
PDB_INT32,closing,
PDB_END);
if (!return_vals || return_vals[0].value.pdb_int != PDB_SUCCESS)
g_message (_("failed to run brush callback function"));
procedural_db_destroy_args (return_vals, nreturn_vals);
}
busy = 0;
}
void
brush_select_show_paint_options (BrushSelectP bsp,
gboolean show)
{
show = show ? TRUE : FALSE;
if ((bsp == NULL) && ((bsp = brush_select_dialog) == NULL))
return;
if (show)
{
if (! GTK_WIDGET_VISIBLE (bsp->paint_options_box))
gtk_widget_show (bsp->paint_options_box);
if (bsp->brush_selection_box->parent != bsp->left_box)
gtk_widget_reparent (bsp->brush_selection_box, bsp->left_box);
gtk_box_set_child_packing (GTK_BOX (bsp->options_box->parent),
bsp->options_box,
FALSE, FALSE, 0, GTK_PACK_START);
gtk_box_set_child_packing (GTK_BOX (bsp->left_box->parent),
bsp->left_box,
TRUE, TRUE, 0, GTK_PACK_START);
gtk_box_set_spacing (GTK_BOX (bsp->left_box->parent), 2);
}
else
{
if (GTK_WIDGET_VISIBLE (bsp->paint_options_box))
gtk_widget_hide (bsp->paint_options_box);
if (bsp->brush_selection_box->parent != bsp->right_box)
gtk_widget_reparent (bsp->brush_selection_box, bsp->right_box);
gtk_box_set_child_packing (GTK_BOX (bsp->left_box->parent),
bsp->left_box,
FALSE, FALSE, 0, GTK_PACK_START);
gtk_box_set_child_packing (GTK_BOX (bsp->options_box->parent),
bsp->options_box,
TRUE, TRUE, 0, GTK_PACK_START);
gtk_box_set_spacing (GTK_BOX (bsp->left_box->parent), 0);
}
}
/* Disabled until I've figured out how gtk window resizing *really* works.
* I don't think that the function below is the correct way to do it
* -- Michael
*
static void
brush_select_map_callback (GtkWidget *widget,
BrushSelectP bsp)
{
GtkAllocation allocation;
gint xdiff, ydiff;
xdiff =
bsp->shell->allocation.width - bsp->preview->allocation.width;
ydiff =
bsp->shell->allocation.height - bsp->preview->allocation.height;
allocation = bsp->shell->allocation;
allocation.width = brush_select_session_info.width + xdiff;
allocation.height = brush_select_session_info.height + ydiff;
gtk_widget_size_allocate (bsp->shell, &allocation);
}
*/
static void
brush_select_brush_changed (BrushSelectP bsp,
GimpBrushP brush)
{
/* TODO: be smarter here and only update the part of the preview
* that has changed */
if (bsp)
{
display_brushes (bsp);
gtk_widget_draw (bsp->preview, NULL);
}
}
static gint
brush_select_brush_dirty_callback (GimpBrushP brush,
BrushSelectP bsp)
{
brush_select_brush_changed (bsp, brush);
return TRUE;
}
static void
connect_signals_to_brush (GimpBrushP brush,
BrushSelectP bsp)
{
gtk_signal_connect (GTK_OBJECT (brush), "dirty",
GTK_SIGNAL_FUNC (brush_select_brush_dirty_callback),
bsp);
}
static void
disconnect_signals_from_brush (GimpBrushP brush,
BrushSelectP bsp)
{
if (!GTK_OBJECT_DESTROYED (brush))
gtk_signal_disconnect_by_data (GTK_OBJECT (brush), bsp);
}
static void
brush_added_callback (GimpBrushList *list,
GimpBrushP brush,
BrushSelectP bsp)
{
connect_signals_to_brush (brush, bsp);
preview_calc_scrollbar (bsp);
brush_select_brush_changed (bsp, brush);
}
static void
brush_removed_callback (GimpBrushList *list,
GimpBrushP brush,
BrushSelectP bsp)
{
disconnect_signals_from_brush (brush, bsp);
preview_calc_scrollbar (bsp);
}
/*
* Local functions
*/
typedef struct {
BrushSelectP bsp;
int x;
int y;
GimpBrushP brush;
} popup_timeout_args_t;
static gboolean
brush_popup_timeout (gpointer data)
{
popup_timeout_args_t *args = data;
BrushSelectP bsp = args->bsp;
GimpBrushP brush = args->brush;
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 */
bsp->popup_timeout_tag = 0;
/* make sure the popup exists and is not visible */
if (bsp->brush_popup == NULL)
{
GtkWidget *frame;
bsp->brush_popup = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_policy (GTK_WINDOW (bsp->brush_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 (bsp->brush_popup), frame);
gtk_widget_show (frame);
bsp->brush_preview = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
gtk_container_add (GTK_CONTAINER (frame), bsp->brush_preview);
gtk_widget_show (bsp->brush_preview);
}
else
{
gtk_widget_hide (bsp->brush_popup);
}
/* decide where to put the popup */
gdk_window_get_origin (bsp->preview->window, &x_org, &y_org);
scr_w = gdk_screen_width ();
scr_h = gdk_screen_height ();
x = x_org + args->x - brush->mask->width * 0.5;
y = y_org + args->y - brush->mask->height * 0.5;
x = (x < 0) ? 0 : x;
y = (y < 0) ? 0 : y;
x = (x + brush->mask->width > scr_w) ? scr_w - brush->mask->width : x;
y = (y + brush->mask->height > scr_h) ? scr_h - brush->mask->height : y;
gtk_preview_size (GTK_PREVIEW (bsp->brush_preview),
brush->mask->width, brush->mask->height);
gtk_widget_popup (bsp->brush_popup, x, y);
/* Draw the brush */
buf = g_new (gchar, brush->mask->width);
src = (gchar *) temp_buf_data (brush->mask);
for (y = 0; y < brush->mask->height; y++)
{
/* Invert the mask for display. We're doing this because
* a value of 255 in the mask means it is full intensity.
* However, it makes more sense for full intensity to show
* up as black in this brush preview window...
*/
for (x = 0; x < brush->mask->width; x++)
buf[x] = 255 - src[x];
gtk_preview_draw_row (GTK_PREVIEW (bsp->brush_preview), (guchar *)buf,
0, y, brush->mask->width);
src += brush->mask->width;
}
g_free (buf);
/* Draw the brush preview */
gtk_widget_draw (bsp->brush_preview, NULL);
return FALSE; /* don't repeat */
}
static void
brush_popup_open (BrushSelectP bsp,
int x,
int y,
GimpBrushP brush)
{
static popup_timeout_args_t popup_timeout_args;
/* if we've already got a timeout scheduled, then we complain */
g_return_if_fail (bsp->popup_timeout_tag == 0);
popup_timeout_args.bsp = bsp;
popup_timeout_args.x = x;
popup_timeout_args.y = y;
popup_timeout_args.brush = brush;
bsp->popup_timeout_tag = gtk_timeout_add (POPUP_DELAY_MS,
brush_popup_timeout,
&popup_timeout_args);
}
static void
brush_popup_close (BrushSelectP bsp)
{
if (bsp->popup_timeout_tag != 0)
gtk_timeout_remove (bsp->popup_timeout_tag);
bsp->popup_timeout_tag = 0;
if (bsp->brush_popup != NULL)
gtk_widget_hide (bsp->brush_popup);
}
static void
display_brush (BrushSelectP bsp,
GimpBrushP brush,
int col,
int row)
{
TempBuf * brush_buf;
unsigned char * src, *s;
unsigned char * buf, *b;
int width, height;
int offset_x, offset_y;
int yend;
int ystart;
int i, j;
buf = (unsigned char *) g_malloc (sizeof (char) * bsp->cell_width);
brush_buf = brush->mask;
/* calculate the offset into the image */
width = (brush_buf->width > bsp->cell_width) ? bsp->cell_width :
brush_buf->width;
height = (brush_buf->height > bsp->cell_height) ? bsp->cell_height :
brush_buf->height;
offset_x = col * bsp->cell_width + ((bsp->cell_width - width) >> 1);
offset_y = row * bsp->cell_height + ((bsp->cell_height - height) >> 1)
- bsp->scroll_offset;
ystart = BOUNDS (offset_y, 0, bsp->preview->allocation.height);
yend = BOUNDS (offset_y + height, 0, bsp->preview->allocation.height);
/* Get the pointer into the brush mask data */
src = mask_buf_data (brush_buf) + (ystart - offset_y) * brush_buf->width;
for (i = ystart; i < yend; i++)
{
/* Invert the mask for display. We're doing this because
* a value of 255 in the mask means it is full intensity.
* However, it makes more sense for full intensity to show
* up as black in this brush preview window...
*/
s = src;
b = buf;
for (j = 0; j < width; j++)
*b++ = 255 - *s++;
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview), buf, offset_x, i, width);
src += brush_buf->width;
}
g_free (buf);
}
static void
display_setup (BrushSelectP bsp)
{
unsigned char * buf;
int i;
buf =
(unsigned char *) g_malloc (sizeof (char) * bsp->preview->allocation.width);
/* Set the buffer to white */
memset (buf, 255, bsp->preview->allocation.width);
/* Set the image buffer to white */
for (i = 0; i < bsp->preview->allocation.height; i++)
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview), buf, 0, i,
bsp->preview->allocation.width);
g_free (buf);
}
static int brush_counter = 0;
static void
do_display_brush (GimpBrush *brush,
BrushSelectP bsp)
{
display_brush (bsp, brush, brush_counter % (bsp->NUM_BRUSH_COLUMNS),
brush_counter / (bsp->NUM_BRUSH_COLUMNS));
brush_counter++;
}
static void
display_brushes (BrushSelectP bsp)
{
/* If there are no brushes, insensitize widgets */
if (brush_list == NULL || gimp_brush_list_length(brush_list) == 0)
{
gtk_widget_set_sensitive (bsp->options_box, FALSE);
return;
}
/* Else, sensitize widgets */
else
gtk_widget_set_sensitive (bsp->options_box, TRUE);
/* setup the display area */
display_setup (bsp);
brush_counter = 0;
gimp_list_foreach (GIMP_LIST (brush_list), (GFunc) do_display_brush, bsp);
}
static void
brush_select_show_selected (BrushSelectP bsp,
int row,
int col)
{
GdkRectangle area;
unsigned char * buf;
int yend;
int ystart;
int offset_x, offset_y;
int i;
buf = (unsigned char *) g_malloc (sizeof (char) * bsp->cell_width);
if (bsp->old_col != col || bsp->old_row != row)
{
/* remove the old selection */
offset_x = bsp->old_col * bsp->cell_width;
offset_y = bsp->old_row * bsp->cell_height - bsp->scroll_offset;
ystart = BOUNDS (offset_y , 0, bsp->preview->allocation.height);
yend = BOUNDS (offset_y + bsp->cell_height, 0, bsp->preview->allocation.height);
/* set the buf to white */
memset (buf, 255, bsp->cell_width);
for (i = ystart; i < yend; i++)
{
if (i == offset_y || i == (offset_y + bsp->cell_height - 1))
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview), buf,
offset_x, i, bsp->cell_width);
else
{
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview), buf,
offset_x, i, 1);
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview), buf,
offset_x + bsp->cell_width - 1, i, 1);
}
}
if (bsp->redraw)
{
area.x = offset_x;
area.y = ystart;
area.width = bsp->cell_width;
area.height = (yend - ystart);
gtk_widget_draw (bsp->preview, &area);
}
}
/* make the new selection */
offset_x = col * bsp->cell_width;
offset_y = row * bsp->cell_height - bsp->scroll_offset;
ystart = BOUNDS (offset_y , 0, bsp->preview->allocation.height);
yend = BOUNDS (offset_y + bsp->cell_height, 0, bsp->preview->allocation.height);
/* set the buf to black */
memset (buf, 0, bsp->cell_width);
for (i = ystart; i < yend; i++)
{
if (i == offset_y || i == (offset_y + bsp->cell_height - 1))
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview),
buf, offset_x, i, bsp->cell_width);
else
{
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview), buf,
offset_x, i, 1);
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview), buf,
offset_x + bsp->cell_width - 1, i, 1);
}
}
if (bsp->redraw)
{
area.x = offset_x;
area.y = ystart;
area.width = bsp->cell_width;
area.height = (yend - ystart);
gtk_widget_draw (bsp->preview, &area);
}
bsp->old_row = row;
bsp->old_col = col;
g_free (buf);
}
static void
preview_calc_scrollbar (BrushSelectP bsp)
{
int num_rows;
int page_size;
int max;
bsp->scroll_offset = 0;
num_rows = (gimp_brush_list_length(brush_list) + (bsp->NUM_BRUSH_COLUMNS) - 1)
/ (bsp->NUM_BRUSH_COLUMNS);
max = num_rows * bsp->cell_width;
if (!num_rows) num_rows = 1;
page_size = bsp->preview->allocation.height;
bsp->sbar_data->value = bsp->scroll_offset;
bsp->sbar_data->upper = max;
bsp->sbar_data->page_size = ((page_size < max) ? page_size : max);
bsp->sbar_data->page_increment = (page_size >> 1);
bsp->sbar_data->step_increment = bsp->cell_width;
gtk_signal_emit_by_name (GTK_OBJECT (bsp->sbar_data), "changed");
}
static gint
brush_select_resize (GtkWidget *widget,
GdkEvent *event,
BrushSelectP bsp)
{
/* 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;
}
bsp->NUM_BRUSH_COLUMNS =
(gint) (wid / cell_size);
bsp->NUM_BRUSH_ROWS =
(gint) ((gimp_brush_list_length (brush_list) + bsp->NUM_BRUSH_COLUMNS - 1) /
bsp->NUM_BRUSH_COLUMNS);
bsp->cell_width = cell_size;
bsp->cell_height = cell_size;
/* recalculate scrollbar extents */
preview_calc_scrollbar (bsp);
/* render the brushes into the newly created image structure */
display_brushes (bsp);
/* update the display */
if (bsp->redraw)
gtk_widget_draw (bsp->preview, NULL);
return FALSE;
}
static void
update_active_brush_field (BrushSelectP bsp)
{
GimpBrushP brush;
char buf[32];
if (bsp->brush)
brush = bsp->brush;
else
brush = get_active_brush ();
if (!brush)
return;
/* Set brush name */
gtk_label_set_text (GTK_LABEL (bsp->brush_name), brush->name);
/* Set brush size */
g_snprintf (buf, 32, "(%d X %d)", brush->mask->width, brush->mask->height);
gtk_label_set_text (GTK_LABEL (bsp->brush_size), buf);
/* Set brush spacing */
if (bsp == brush_select_dialog)
bsp->spacing_data->value = gimp_brush_get_spacing (brush);
else
bsp->spacing_data->value = bsp->spacing_value = brush->spacing;
gtk_signal_emit_by_name (GTK_OBJECT (bsp->spacing_data), "value_changed");
}
static gint
brush_select_events (GtkWidget *widget,
GdkEvent *event,
BrushSelectP bsp)
{
GdkEventButton *bevent;
GimpBrushP brush;
int row, col, index;
switch (event->type)
{
case GDK_EXPOSE:
break;
case GDK_BUTTON_PRESS:
bevent = (GdkEventButton *) event;
if (bevent->button == 1)
{
col = bevent->x / bsp->cell_width;
row = (bevent->y + bsp->scroll_offset) / bsp->cell_height;
index = row * bsp->NUM_BRUSH_COLUMNS + col;
/* Get the brush and display the popup brush preview */
if ((brush = gimp_brush_list_get_brush_by_index (brush_list, index)))
{
gdk_pointer_grab (bsp->preview->window, FALSE,
(GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK),
NULL, NULL, bevent->time);
/* Make this brush the active brush */
/* only if dialog is main one */
if (bsp == brush_select_dialog)
{
select_brush (brush);
}
else
{
/* Keeping up appearances */
if (bsp)
{
bsp->brush = brush;
brush_select_select (bsp,
gimp_brush_list_get_brush_index (brush_list, brush));
}
}
if (GIMP_IS_BRUSH_GENERATED (brush) && bsp == brush_select_dialog)
gtk_widget_set_sensitive (bsp->edit_button, 1);
else
gtk_widget_set_sensitive (bsp->edit_button, 0);
if (brush_edit_generated_dialog)
brush_edit_generated_set_brush (brush_edit_generated_dialog,
get_active_brush ());
/* Show the brush popup window if the brush is too large */
if (brush->mask->width > bsp->cell_width ||
brush->mask->height > bsp->cell_height)
brush_popup_open (bsp, bevent->x, bevent->y, brush);
}
}
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 */
brush_popup_close (bsp);
/* Call any callbacks registered */
brush_change_callbacks (bsp, 0);
}
break;
case GDK_DELETE:
/* g_warning ("test"); */
break;
default:
break;
}
return FALSE;
}
static gint
edit_brush_callback (GtkWidget *w,
GdkEvent *e,
gpointer data)
{
if (GIMP_IS_BRUSH_GENERATED (get_active_brush ()))
{
if (!brush_edit_generated_dialog)
{
/* Create the dialog... */
brush_edit_generated_dialog = brush_edit_generated_new ();
brush_edit_generated_set_brush (brush_edit_generated_dialog,
get_active_brush ());
}
else
{
/* Popup the dialog */
if (!GTK_WIDGET_VISIBLE (brush_edit_generated_dialog->shell))
gtk_widget_show (brush_edit_generated_dialog->shell);
else
gdk_window_raise (brush_edit_generated_dialog->shell->window);
}
}
else
g_message (_("We are all fresh out of brush editors today,\n"
"please write your own or try back tomorrow\n"));
return TRUE;
}
static gint
new_brush_callback (GtkWidget *w,
GdkEvent *e,
gpointer data)
{
GimpBrushGenerated *brush;
brush = gimp_brush_generated_new (10, .5, 0.0, 1.0);
gimp_brush_list_add(brush_list, GIMP_BRUSH (brush));
select_brush (GIMP_BRUSH (brush));
if (brush_edit_generated_dialog)
brush_edit_generated_set_brush (brush_edit_generated_dialog,
get_active_brush());
edit_brush_callback (w, e, data);
return TRUE;
}
static gint
brush_select_delete_callback (GtkWidget *w,
GdkEvent *e,
gpointer data)
{
brush_select_close_callback (w, data);
return TRUE;
}
static void
brush_select_close_callback (GtkWidget *w, /* Unused so can be NULL */
gpointer client_data)
{
BrushSelectP bsp;
bsp = (BrushSelectP) client_data;
if (GTK_WIDGET_VISIBLE (bsp->shell))
gtk_widget_hide (bsp->shell);
/* Free memory if poping down dialog which is not the main one */
if (bsp != brush_select_dialog)
{
/* Send data back */
brush_change_callbacks (bsp,1);
gtk_widget_destroy (bsp->shell);
brush_select_free (bsp);
}
}
static void
brush_select_refresh_callback (GtkWidget *w,
gpointer client_data)
{
BrushSelectP bsp;
GimpBrushP active;
bsp = (BrushSelectP) client_data;
/* re-init the brush list */
brushes_init (FALSE);
/* recalculate scrollbar extents */
preview_calc_scrollbar (bsp);
/* render the brushes into the newly created image structure */
display_brushes (bsp);
/* update the active selection */
active = get_active_brush ();
if (active)
brush_select_select (bsp, gimp_brush_list_get_brush_index (brush_list,
active));
/* update the display */
if (bsp->redraw)
gtk_widget_draw (bsp->preview, NULL);
}
static void
preview_scroll_update (GtkAdjustment *adjustment,
gpointer data)
{
BrushSelectP bsp;
GimpBrushP active;
int row, col, index;
bsp = data;
if (bsp)
{
bsp->scroll_offset = adjustment->value;
display_brushes (bsp);
if (brush_select_dialog == bsp)
active = get_active_brush ();
else
active = bsp->brush;
if (active)
{
index = gimp_brush_list_get_brush_index (brush_list, active);
if (index < 0)
return;
row = index / bsp->NUM_BRUSH_COLUMNS;
col = index - row * bsp->NUM_BRUSH_COLUMNS;
brush_select_show_selected (bsp, row, col);
}
if (bsp->redraw)
gtk_widget_draw (bsp->preview, NULL);
}
}
static void
paint_mode_menu_callback (GtkWidget *w,
gpointer client_data)
{
BrushSelectP bsp = (BrushSelectP) gtk_object_get_user_data (GTK_OBJECT (w));
if (bsp == brush_select_dialog)
paint_options_set_paint_mode ((int) client_data);
else
{
bsp->paint_mode = (int) client_data;
brush_change_callbacks (bsp, 0);
}
}
static void
opacity_scale_update (GtkAdjustment *adjustment,
gpointer data)
{
BrushSelectP bsp = (BrushSelectP) data;
if(bsp == brush_select_dialog)
paint_options_set_opacity (adjustment->value / 100.0);
else
{
bsp->opacity_value = (adjustment->value / 100.0);
brush_change_callbacks (bsp, 0);
}
}
static void
spacing_scale_update (GtkAdjustment *adjustment,
gpointer data)
{
BrushSelectP bsp = (BrushSelectP) data;
if(bsp == brush_select_dialog)
gimp_brush_set_spacing (get_active_brush(), (int) adjustment->value);
else
{
if(bsp->spacing_value != adjustment->value)
{
bsp->spacing_value = adjustment->value;
brush_change_callbacks (bsp, 0);
}
}
}
/* not used
static void
paint_options_toggle_callback (GtkWidget *widget,
gpointer client_data)
{
paint_options_set_global (GTK_TOGGLE_BUTTON (widget)->active);
}
*/
/* Close active dialogs that no longer have PDB registered for them */
void
brushes_check_dialogs (void)
{
GSList *list;
BrushSelectP bsp;
gchar * name;
ProcRecord *prec = NULL;
list = brush_active_dialogs;
while (list)
{
bsp = (BrushSelectP) list->data;
list = list->next;
name = bsp->callback_name;
prec = procedural_db_lookup (name);
if(!prec)
{
brush_active_dialogs = g_slist_remove (brush_active_dialogs,bsp);
/* Can alter brush_active_dialogs list*/
brush_select_close_callback (NULL, bsp);
}
}
}
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