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gimp/app/gui/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 "brush_scale.h"
#include "brush_edit.h"
#include "brush_select.h"
#include "dialog_handler.h"
#include "gimpbrushgenerated.h"
#include "gimpbrushlist.h"
#include "gimpbrushpipe.h"
#include "gimpbrushpipeP.h"
#include "gimpcontext.h"
#include "gimpdnd.h"
#include "gimplist.h"
#include "gimprc.h"
#include "gimpui.h"
#include "paint_options.h"
#include "session.h"
#include "config.h"
#include "libgimp/gimpintl.h"
#define MIN_CELL_SIZE 25
#define MAX_CELL_SIZE 25 /* disable variable brush preview size */
#define STD_BRUSH_COLUMNS 5
#define STD_BRUSH_ROWS 5
/* how long to wait after mouse-down before showing brush 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 1
#define MARGIN_HEIGHT 1
#define BRUSH_EVENT_MASK GDK_EXPOSURE_MASK | \
GDK_BUTTON_PRESS_MASK | \
GDK_BUTTON_RELEASE_MASK | \
GDK_BUTTON1_MOTION_MASK | \
GDK_ENTER_NOTIFY_MASK
/* the pixmaps for the [scale|pipe]_indicators */
#define indicator_width 7
#define indicator_height 7
#define WHT {255, 255, 255}
#define BLK { 0, 0, 0}
#define RED {255, 127, 127}
/* local function prototypes */
static void brush_change_callbacks (BrushSelect *bsp,
gboolean closing);
static GimpBrush * brush_select_drag_brush (GtkWidget *widget,
gpointer data);
static void brush_select_drop_brush (GtkWidget *widget,
GimpBrush *brush,
gpointer data);
static void brush_select_brush_changed (GimpContext *context,
GimpBrush *brush,
BrushSelect *bsp);
static void brush_select_opacity_changed (GimpContext *context,
gdouble opacity,
BrushSelect *bsp);
static void brush_select_paint_mode_changed (GimpContext *context,
LayerModeEffects paint_mode,
BrushSelect *bsp);
static void brush_select_select (BrushSelect *bsp,
GimpBrush *brush);
static void brush_select_brush_dirty_callback (GimpBrush *brush,
BrushSelect *bsp);
static void connect_signals_to_brush (GimpBrush *brush,
BrushSelect *bsp);
static void disconnect_signals_from_brush (GimpBrush *brush,
BrushSelect *bsp);
static void brush_added_callback (GimpBrushList *list,
GimpBrush *brush,
BrushSelect *bsp);
static void brush_removed_callback (GimpBrushList *list,
GimpBrush *brush,
BrushSelect *bsp);
static void draw_brush_popup (GtkPreview *preview,
GimpBrush *brush,
gint width,
gint height);
static gint brush_popup_anim_timeout (gpointer data);
static gboolean brush_popup_timeout (gpointer data);
static void brush_popup_open (BrushSelect *,
gint, gint, GimpBrush *);
static void brush_popup_close (BrushSelect *);
static void display_setup (BrushSelect *);
static void clear_brush (BrushSelect *,
GimpBrush *, gint, gint);
static void display_brush (BrushSelect *,
GimpBrush *, gint, gint,
gboolean);
static void do_display_brush (GimpBrush *brush,
BrushSelect *bsp);
static void display_brushes (BrushSelect *);
static void brush_select_show_selected (BrushSelect *, gint, gint);
static void update_active_brush_field (BrushSelect *);
static void preview_calc_scrollbar (BrushSelect *);
static gint brush_select_resize (GtkWidget *, GdkEvent *,
BrushSelect *);
static gint brush_select_events (GtkWidget *, GdkEvent *,
BrushSelect *);
/* static void brush_select_map_callback (GtkWidget *,
BrushSelect *); */
static void brush_select_scroll_update (GtkAdjustment *, gpointer);
static void opacity_scale_update (GtkAdjustment *, gpointer);
static void paint_mode_menu_callback (GtkWidget *, gpointer);
static void spacing_scale_update (GtkAdjustment *, gpointer);
static void brush_select_close_callback (GtkWidget *, gpointer);
static void brush_select_refresh_callback (GtkWidget *, gpointer);
static void brush_select_new_brush_callback (GtkWidget *, gpointer);
static void brush_select_edit_brush_callback (GtkWidget *, gpointer);
static void brush_select_delete_brush_callback (GtkWidget *, gpointer);
static unsigned char scale_indicator_bits[7][7][3] =
{
{ WHT, WHT, WHT, WHT, WHT, WHT, WHT },
{ WHT, WHT, WHT, BLK, WHT, WHT, WHT },
{ WHT, WHT, WHT, BLK, WHT, WHT, WHT },
{ WHT, BLK, BLK, BLK, BLK, BLK, WHT },
{ WHT, WHT, WHT, BLK, WHT, WHT, WHT },
{ WHT, WHT, WHT, BLK, WHT, WHT, WHT },
{ WHT, WHT, WHT, WHT, WHT, WHT, WHT }
};
static unsigned char pipe_indicator_bits[7][7][3] =
{
{ WHT, WHT, WHT, WHT, WHT, WHT, WHT },
{ WHT, WHT, WHT, WHT, WHT, WHT, RED },
{ WHT, WHT, WHT, WHT, WHT, RED, RED },
{ WHT, WHT, WHT, WHT, RED, RED, RED },
{ WHT, WHT, WHT, RED, RED, RED, RED },
{ WHT, WHT, RED, RED, RED, RED, RED },
{ WHT, RED, RED, RED, RED, RED, RED }
};
static unsigned char scale_pipe_indicator_bits[7][7][3] =
{
{ WHT, WHT, WHT, WHT, WHT, WHT, WHT },
{ WHT, WHT, WHT, BLK, WHT, WHT, RED },
{ WHT, WHT, WHT, BLK, WHT, RED, RED },
{ WHT, BLK, BLK, BLK, BLK, BLK, RED },
{ WHT, WHT, WHT, BLK, RED, RED, RED },
{ WHT, WHT, RED, BLK, RED, RED, RED },
{ WHT, RED, RED, RED, RED, RED, RED }
};
/* dnd stuff */
static GtkTargetEntry preview_target_table[] =
{
GIMP_TARGET_BRUSH
};
static guint preview_n_targets = (sizeof (preview_target_table) /
sizeof (preview_target_table[0]));
/* The main brush selection dialog */
BrushSelect *brush_select_dialog = NULL;
/* local variables */
/* List of active dialogs */
GSList *brush_active_dialogs = NULL;
/* Brush editor dialog */
static BrushEditGeneratedWindow *brush_edit_generated_dialog;
void
brush_dialog_create (void)
{
if (! brush_select_dialog)
{
brush_select_dialog = brush_select_new (NULL, NULL, 0.0, 0, 0);
}
else
{
if (!GTK_WIDGET_VISIBLE (brush_select_dialog->shell))
gtk_widget_show (brush_select_dialog->shell);
else
gdk_window_raise (brush_select_dialog->shell->window);
}
}
void
brush_dialog_free (void)
{
if (brush_select_dialog)
{
session_get_window_info (brush_select_dialog->shell,
&brush_select_session_info);
/* save the size of the preview */
brush_select_session_info.width =
brush_select_dialog->preview->allocation.width;
brush_select_session_info.height =
brush_select_dialog->preview->allocation.height;
brush_select_free (brush_select_dialog);
brush_select_dialog = NULL;
}
}
/* If title == NULL then it is the main brush dialog */
BrushSelect *
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)
{
BrushSelect *bsp;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *frame;
GtkWidget *sbar;
GtkWidget *sep;
GtkWidget *table;
GtkWidget *util_box;
GtkWidget *slider;
GtkWidget *button;
GimpBrush *active = NULL;
static gboolean first_call = TRUE;
bsp = g_new (BrushSelect, 1);
bsp->callback_name = NULL;
bsp->dnd_brush = NULL;
bsp->brush_popup = NULL;
bsp->popup_timeout_tag = 0;
bsp->popup_anim_timeout_tag = 0;
bsp->scroll_offset = 0;
bsp->old_row = 0;
bsp->old_col = 0;
bsp->NUM_BRUSH_COLUMNS = STD_BRUSH_COLUMNS;
bsp->NUM_BRUSH_ROWS = STD_BRUSH_ROWS;
bsp->redraw = TRUE;
bsp->freeze = FALSE;
/* The shell */
bsp->shell = gimp_dialog_new (title ? title : _("Brush Selection"),
"brush_selection",
gimp_standard_help_func,
"dialogs/brush_selection.html",
title ? GTK_WIN_POS_MOUSE : GTK_WIN_POS_NONE,
FALSE, TRUE, FALSE,
_("Refresh"), brush_select_refresh_callback,
bsp, NULL, NULL, FALSE, FALSE,
_("Close"), brush_select_close_callback,
bsp, NULL, NULL, TRUE, TRUE,
NULL);
if (title)
{
bsp->context = gimp_context_new (title, NULL);
}
else
{
bsp->context = gimp_context_get_user ();
session_set_window_geometry (bsp->shell, &brush_select_session_info,
FALSE);
dialog_register (bsp->shell);
}
if (no_data && first_call)
brushes_init (FALSE);
first_call = FALSE;
if (title && init_name && strlen (init_name))
{
active = gimp_brush_list_get_brush (brush_list, init_name);
}
else
{
active = gimp_context_get_brush (gimp_context_get_user ());
}
if (!active)
{
active = gimp_context_get_brush (gimp_context_get_standard ());
}
if (title)
{
gimp_context_set_brush (bsp->context, active);
gimp_context_set_paint_mode (bsp->context, init_mode);
gimp_context_set_opacity (bsp->context, init_opacity);
bsp->spacing_value = init_spacing;
}
/* 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 horizontal box containing preview & scrollbar */
bsp->brush_selection_box = gtk_hbox_new (FALSE, 2);
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",
GTK_SIGNAL_FUNC (brush_select_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_COLOR);
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",
GTK_SIGNAL_FUNC (brush_select_events),
bsp);
gtk_signal_connect (GTK_OBJECT(bsp->preview), "size_allocate",
GTK_SIGNAL_FUNC (brush_select_resize),
bsp);
/* dnd stuff */
gtk_drag_source_set (bsp->preview,
GDK_BUTTON2_MASK,
preview_target_table, preview_n_targets,
GDK_ACTION_COPY);
gimp_dnd_brush_source_set (bsp->preview, brush_select_drag_brush, bsp);
gtk_drag_dest_set (bsp->preview,
GTK_DEST_DEFAULT_ALL,
preview_target_table, preview_n_targets,
GDK_ACTION_COPY);
gimp_dnd_brush_dest_set (bsp->preview, brush_select_drop_brush, 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 (_("No Brushes available"));
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 */
bsp->opacity_data =
GTK_ADJUSTMENT (gtk_adjustment_new
(gimp_context_get_opacity (bsp->context) * 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_signal_connect (GTK_OBJECT (bsp->opacity_data), "value_changed",
GTK_SIGNAL_FUNC (opacity_scale_update),
bsp);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Opacity:"), 1.0, 1.0,
slider, 1, FALSE);
/* Create the paint mode option menu */
bsp->option_menu =
paint_mode_menu_new (paint_mode_menu_callback, (gpointer) bsp,
gimp_context_get_paint_mode (bsp->context));
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("Mode:"), 1.0, 0.5,
bsp->option_menu, 1, TRUE);
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);
button = gtk_button_new_with_label (_("New"));
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (brush_select_new_brush_callback),
bsp);
gtk_box_pack_start (GTK_BOX (util_box), button, TRUE, TRUE, 6);
bsp->edit_button = gtk_button_new_with_label (_("Edit"));
gtk_signal_connect (GTK_OBJECT (bsp->edit_button), "clicked",
GTK_SIGNAL_FUNC (brush_select_edit_brush_callback),
bsp);
gtk_box_pack_start (GTK_BOX (util_box), bsp->edit_button, TRUE, TRUE, 5);
bsp->delete_button = gtk_button_new_with_label (_("Delete"));
gtk_signal_connect (GTK_OBJECT (bsp->delete_button), "clicked",
GTK_SIGNAL_FUNC (brush_select_delete_brush_callback),
bsp);
gtk_box_pack_start (GTK_BOX (util_box), bsp->delete_button, TRUE, TRUE, 5);
gtk_widget_show (bsp->edit_button);
gtk_widget_show (button);
gtk_widget_show (bsp->delete_button);
gtk_widget_show (util_box);
/* 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);
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_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
if (title && init_spacing >= 0)
{
/* Use passed spacing instead of brushes default */
gtk_adjustment_set_value (GTK_ADJUSTMENT (bsp->spacing_data),
init_spacing);
}
gtk_signal_connect (GTK_OBJECT (bsp->spacing_data), "value_changed",
GTK_SIGNAL_FUNC (spacing_scale_update),
bsp);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Spacing:"), 1.0, 1.0,
slider, 1, FALSE);
gtk_widget_show (table);
gtk_widget_show (bsp->options_box);
gtk_widget_show (hbox);
gtk_widget_show (vbox);
/* 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",
GTK_SIGNAL_FUNC (brush_added_callback),
bsp);
gtk_signal_connect (GTK_OBJECT (brush_list), "remove",
GTK_SIGNAL_FUNC (brush_removed_callback),
bsp);
/* Only for main dialog */
if (!title)
{
/* 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);
}
gtk_widget_show (bsp->shell);
preview_calc_scrollbar (bsp);
gtk_signal_connect (GTK_OBJECT (bsp->context), "brush_changed",
GTK_SIGNAL_FUNC (brush_select_brush_changed),
bsp);
gtk_signal_connect (GTK_OBJECT (bsp->context), "opacity_changed",
GTK_SIGNAL_FUNC (brush_select_opacity_changed),
bsp);
gtk_signal_connect (GTK_OBJECT (bsp->context), "paint_mode_changed",
GTK_SIGNAL_FUNC (brush_select_paint_mode_changed),
bsp);
if (active)
brush_select_select (bsp, active);
/* Add to active brush dialogs list */
brush_active_dialogs = g_slist_append (brush_active_dialogs, bsp);
return bsp;
}
void
brush_select_free (BrushSelect *bsp)
{
if (!bsp)
return;
/* remove from active list */
brush_active_dialogs = g_slist_remove (brush_active_dialogs, bsp);
gtk_signal_disconnect_by_data (GTK_OBJECT (bsp->context), bsp);
if (bsp->brush_popup != NULL)
gtk_widget_destroy (bsp->brush_popup);
if (bsp->callback_name)
{
g_free (bsp->callback_name);
gtk_object_unref (GTK_OBJECT (bsp->context));
}
gimp_list_foreach (GIMP_LIST (brush_list),
(GFunc) disconnect_signals_from_brush,
bsp);
gtk_signal_disconnect_by_data (GTK_OBJECT (brush_list), bsp);
g_free (bsp);
}
void
brush_select_freeze_all (void)
{
BrushSelect *bsp;
GSList *list;
for (list = brush_active_dialogs; list; list = g_slist_next (list))
{
bsp = (BrushSelect *) list->data;
bsp->freeze = TRUE;
}
}
void
brush_select_thaw_all (void)
{
BrushSelect *bsp;
GSList *list;
for (list = brush_active_dialogs; list; list = g_slist_next (list))
{
bsp = (BrushSelect *) list->data;
bsp->freeze = FALSE;
preview_calc_scrollbar (bsp);
}
}
void
brush_select_show_paint_options (BrushSelect *bsp,
gboolean show)
{
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);
}
}
/* call this dialog's PDB callback */
static void
brush_change_callbacks (BrushSelect *bsp,
gboolean closing)
{
gchar *name;
ProcRecord *prec = NULL;
GimpBrush *brush;
gint nreturn_vals;
static gboolean busy = FALSE;
/* Any procs registered to callback? */
Argument *return_vals;
if (!bsp || !bsp->callback_name || busy)
return;
busy = TRUE;
name = bsp->callback_name;
brush = gimp_context_get_brush (bsp->context);
/* 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, gimp_context_get_opacity (bsp->context),
PDB_INT32, bsp->spacing_value,
PDB_INT32, (gint) gimp_context_get_paint_mode (bsp->context),
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, (gint) 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 = FALSE;
}
/* Close active dialogs that no longer have PDB registered for them */
void
brushes_check_dialogs (void)
{
BrushSelect *bsp;
GSList *list;
gchar *name;
ProcRecord *prec = NULL;
list = brush_active_dialogs;
while (list)
{
bsp = (BrushSelect *) list->data;
list = g_slist_next (list);
name = bsp->callback_name;
if (name)
{
prec = procedural_db_lookup (name);
if (!prec)
{
/* Can alter brush_active_dialogs list */
brush_select_close_callback (NULL, bsp);
}
}
}
}
/*
* Local functions
*/
static GimpBrush *
brush_select_drag_brush (GtkWidget *widget,
gpointer data)
{
BrushSelect *bsp;
bsp = (BrushSelect *) data;
return bsp->dnd_brush;
}
static void
brush_select_drop_brush (GtkWidget *widget,
GimpBrush *brush,
gpointer data)
{
BrushSelect *bsp;
bsp = (BrushSelect *) data;
gimp_context_set_brush (bsp->context, brush);
}
static void
brush_select_brush_changed (GimpContext *context,
GimpBrush *brush,
BrushSelect *bsp)
{
if (brush)
{
brush_select_select (bsp, brush);
if (bsp->callback_name)
brush_change_callbacks (bsp, FALSE);
}
}
static void
brush_select_opacity_changed (GimpContext *context,
gdouble opacity,
BrushSelect *bsp)
{
gtk_signal_handler_block_by_data (GTK_OBJECT (bsp->opacity_data), bsp);
gtk_adjustment_set_value (GTK_ADJUSTMENT (bsp->opacity_data),
opacity * 100.0);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (bsp->opacity_data), bsp);
if (bsp->callback_name)
brush_change_callbacks (bsp, FALSE);
}
static void
brush_select_paint_mode_changed (GimpContext *context,
LayerModeEffects paint_mode,
BrushSelect *bsp)
{
gimp_option_menu_set_history (GTK_OPTION_MENU (bsp->option_menu),
(gpointer) paint_mode);
if (bsp->callback_name)
brush_change_callbacks (bsp, FALSE);
}
static void
brush_select_select (BrushSelect *bsp,
GimpBrush *brush)
{
gint index;
gint row, col;
gint scroll_offset = 0;
index = gimp_brush_list_get_brush_index (brush_list, brush);
if (index < 0)
return;
if (GIMP_IS_BRUSH_GENERATED (brush))
{
gtk_widget_set_sensitive (bsp->edit_button, TRUE);
gtk_widget_set_sensitive (bsp->delete_button, TRUE);
}
else
{
gtk_widget_set_sensitive (bsp->edit_button, FALSE);
gtk_widget_set_sensitive (bsp->delete_button, FALSE);
}
update_active_brush_field (bsp);
row = index / bsp->NUM_BRUSH_COLUMNS;
col = index - row * (bsp->NUM_BRUSH_COLUMNS);
/* check if the new active brush is already in the preview */
if (((row + 1) * bsp->cell_height) >
(bsp->preview->allocation.height + bsp->scroll_offset))
{
scroll_offset = (((row + 1) * bsp->cell_height) -
(bsp->scroll_offset + bsp->preview->allocation.height));
}
else if ((row * bsp->cell_height) < bsp->scroll_offset)
{
scroll_offset = (row * bsp->cell_height) - bsp->scroll_offset;
}
else
{
brush_select_show_selected (bsp, row, col);
}
gtk_adjustment_set_value (bsp->sbar_data, bsp->scroll_offset + scroll_offset);
}
static void
brush_select_brush_dirty_callback (GimpBrush *brush,
BrushSelect *bsp)
{
gint index;
gboolean redraw;
if (!bsp || bsp->freeze)
return;
index = gimp_brush_list_get_brush_index (brush_list, brush);
redraw = (brush != gimp_context_get_brush (bsp->context));
clear_brush (bsp, brush,
index % (bsp->NUM_BRUSH_COLUMNS),
index / (bsp->NUM_BRUSH_COLUMNS));
display_brush (bsp, brush,
index % (bsp->NUM_BRUSH_COLUMNS),
index / (bsp->NUM_BRUSH_COLUMNS),
redraw);
}
static void
connect_signals_to_brush (GimpBrush *brush,
BrushSelect *bsp)
{
gtk_signal_connect (GTK_OBJECT (brush), "dirty",
GTK_SIGNAL_FUNC (brush_select_brush_dirty_callback),
bsp);
gtk_signal_connect (GTK_OBJECT (brush), "rename",
GTK_SIGNAL_FUNC (brush_select_brush_dirty_callback),
bsp);
}
static void
disconnect_signals_from_brush (GimpBrush *brush,
BrushSelect *bsp)
{
if (!GTK_OBJECT_DESTROYED (brush))
gtk_signal_disconnect_by_data (GTK_OBJECT (brush), bsp);
}
static void
brush_added_callback (GimpBrushList *list,
GimpBrush *brush,
BrushSelect *bsp)
{
connect_signals_to_brush (brush, bsp);
if (bsp->freeze)
return;
preview_calc_scrollbar (bsp);
}
static void
brush_removed_callback (GimpBrushList *list,
GimpBrush *brush,
BrushSelect *bsp)
{
disconnect_signals_from_brush (brush, bsp);
if (bsp->freeze)
return;
preview_calc_scrollbar (bsp);
}
static void
draw_brush_popup (GtkPreview *preview,
GimpBrush *brush,
gint width,
gint height)
{
gint x, y;
gint brush_width, brush_height;
gint offset_x, offset_y;
guchar *mask, *buf, *b;
guchar bg;
brush_width = brush->mask->width;
brush_height = brush->mask->height;
offset_x = (width - brush_width) / 2;
offset_y = (height - brush_height) / 2;
mask = temp_buf_data (brush->mask);
buf = g_new (guchar, 3 * width);
memset (buf, 255, 3 * width);
if (GIMP_IS_BRUSH_PIXMAP (brush))
{
guchar *pixmap = temp_buf_data (GIMP_BRUSH_PIXMAP (brush)->pixmap_mask);
for (y = 0; y < offset_y; y++)
gtk_preview_draw_row (preview, buf, 0, y, width);
for (y = offset_y; y < brush_height + offset_y; y++)
{
b = buf + 3 * offset_x;
for (x = 0; x < brush_width ; x++)
{
bg = (255 - *mask);
*b++ = bg + (*mask * *pixmap++) / 255;
*b++ = bg + (*mask * *pixmap++) / 255;
*b++ = bg + (*mask * *pixmap++) / 255;
mask++;
}
gtk_preview_draw_row (preview, buf, 0, y, width);
}
memset (buf, 255, 3 * width);
for (y = brush_height + offset_y; y < height; y++)
gtk_preview_draw_row (preview, buf, 0, y, width);
}
else
{
for (y = 0; y < offset_y; y++)
gtk_preview_draw_row (preview, buf, 0, y, width);
for (y = offset_y; y < brush_height + offset_y; y++)
{
b = buf + 3 * offset_x;
for (x = 0; x < brush_width ; x++)
{
bg = 255 - *mask++;
memset (b, bg, 3);
b += 3;
}
gtk_preview_draw_row (preview, buf, 0, y, width);
}
memset (buf, 255, 3 * width);
for (y = brush_height + offset_y; y < height; y++)
gtk_preview_draw_row (preview, buf, 0, y, width);
}
g_free (buf);
}
typedef struct
{
BrushSelect *bsp;
gint x;
gint y;
GimpBrush *brush;
} popup_timeout_args_t;
static gint
brush_popup_anim_timeout (gpointer data)
{
popup_timeout_args_t *args = data;
BrushSelect *bsp = args->bsp;
GimpBrushPipe *pipe;
GimpBrush *brush;
if (bsp->brush_popup != NULL && !GTK_WIDGET_VISIBLE (bsp->brush_popup))
{
bsp->popup_anim_timeout_tag = 0;
return (FALSE);
}
pipe = GIMP_BRUSH_PIPE (args->brush);
if (++bsp->popup_pipe_index >= pipe->nbrushes)
bsp->popup_pipe_index = 0;
brush = GIMP_BRUSH (pipe->brushes[bsp->popup_pipe_index]);
draw_brush_popup (GTK_PREVIEW (bsp->brush_preview), brush, args->x, args->y);
gtk_widget_queue_draw (bsp->brush_preview);
return (TRUE);
}
static gboolean
brush_popup_timeout (gpointer data)
{
popup_timeout_args_t *args = data;
BrushSelect *bsp = args->bsp;
GimpBrush *brush = args->brush;
gint x, y;
gint x_org, y_org;
gint scr_w, scr_h;
gint width, height;
/* 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_COLOR);
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 */
width = brush->mask->width;
height = brush->mask->height;
if (GIMP_IS_REALLY_A_BRUSH_PIPE (brush))
{
GimpBrushPipe *pipe = GIMP_BRUSH_PIPE (brush);
GimpBrush *tmp_brush;
gint i;
for (i = 1; i < pipe->nbrushes; i++)
{
tmp_brush = GIMP_BRUSH (pipe->brushes[i]);
width = MAX (width, tmp_brush->mask->width);
height = MAX (height, tmp_brush->mask->height);
}
}
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 - width * 0.5;
y = y_org + args->y - height * 0.5;
x = (x < 0) ? 0 : x;
y = (y < 0) ? 0 : y;
x = (x + width > scr_w) ? scr_w - width : x;
y = (y + height > scr_h) ? scr_h - height : y;
gtk_preview_size (GTK_PREVIEW (bsp->brush_preview), width, height);
gtk_widget_popup (bsp->brush_popup, x, y);
/* Draw the brush preview */
draw_brush_popup (GTK_PREVIEW (bsp->brush_preview), brush, width, height);
gtk_widget_queue_draw (bsp->brush_preview);
if (GIMP_IS_REALLY_A_BRUSH_PIPE (brush) && bsp->popup_anim_timeout_tag == 0)
{
static popup_timeout_args_t timeout_args;
timeout_args.bsp = bsp;
timeout_args.x = width;
timeout_args.y = height;
timeout_args.brush = brush;
bsp->popup_pipe_index = 0;
bsp->popup_anim_timeout_tag =
gtk_timeout_add (300, brush_popup_anim_timeout, &timeout_args);
}
return FALSE; /* don't repeat */
}
static void
brush_popup_open (BrushSelect *bsp,
gint x,
gint y,
GimpBrush *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 (BrushSelect *bsp)
{
if (bsp->popup_timeout_tag != 0)
gtk_timeout_remove (bsp->popup_timeout_tag);
bsp->popup_timeout_tag = 0;
if (bsp->popup_anim_timeout_tag != 0)
gtk_timeout_remove (bsp->popup_anim_timeout_tag);
bsp->popup_anim_timeout_tag = 0;
if (bsp->brush_popup != NULL)
gtk_widget_hide (bsp->brush_popup);
}
static void
display_setup (BrushSelect *bsp)
{
guchar * buf;
gint i;
buf = g_new (guchar, 3 * bsp->preview->allocation.width);
/* Set the buffer to white */
memset (buf, 255, bsp->preview->allocation.width * 3);
/* 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 void
clear_brush (BrushSelect *bsp,
GimpBrush *brush,
gint col,
gint row)
{
guchar *buf;
gint width, height;
gint offset_x, offset_y;
gint ystart, yend;
gint i;
width = bsp->cell_width - 2 * MARGIN_WIDTH;
height = bsp->cell_height - 2 * MARGIN_HEIGHT;
offset_x = col * bsp->cell_width + MARGIN_WIDTH;
offset_y = row * bsp->cell_height - bsp->scroll_offset + MARGIN_HEIGHT;
ystart = CLAMP (offset_y, 0, bsp->preview->allocation.height);
yend = CLAMP (offset_y + height, 0, bsp->preview->allocation.height);
buf = g_new (guchar, 3 * width);
memset (buf, 255, 3 * width * sizeof (guchar));
for (i = ystart; i < yend; i++)
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview), buf,
offset_x, i, width);
}
static void
display_brush (BrushSelect *bsp,
GimpBrush *brush,
gint col,
gint row,
gboolean redraw)
{
TempBuf *mask_buf, *pixmap_buf = NULL;
guchar *mask, *buf, *b;
guchar bg;
gboolean scale = FALSE;
gint cell_width, cell_height;
gint width, height;
gint offset_x, offset_y;
gint yend;
gint ystart;
gint i, j;
cell_width = bsp->cell_width - 2 * MARGIN_WIDTH;
cell_height = bsp->cell_height - 2 * MARGIN_HEIGHT;
mask_buf = brush->mask;
if (GIMP_IS_BRUSH_PIXMAP (brush))
pixmap_buf = GIMP_BRUSH_PIXMAP (brush)->pixmap_mask;
if (mask_buf->width > cell_width || mask_buf->height > cell_height)
{
gdouble ratio_x = (gdouble)mask_buf->width / cell_width;
gdouble ratio_y = (gdouble)mask_buf->height / cell_height;
mask_buf = brush_scale_mask (mask_buf,
(gdouble)(mask_buf->width) / MAX (ratio_x, ratio_y) + 0.5,
(gdouble)(mask_buf->height) / MAX (ratio_x, ratio_y) + 0.5);
if (GIMP_IS_BRUSH_PIXMAP (brush))
{
/* TODO: the scale function should scale the pixmap
and the mask in one run */
pixmap_buf = brush_scale_pixmap (pixmap_buf,
mask_buf->width, mask_buf->height);
}
scale = TRUE;
}
/* calculate the offset into the image */
width = (mask_buf->width > cell_width) ? cell_width : mask_buf->width;
height = (mask_buf->height > cell_height) ? cell_height : mask_buf->height;
offset_x = col * bsp->cell_width + ((cell_width - width) >> 1) + MARGIN_WIDTH;
offset_y = row * bsp->cell_height + ((cell_height - height) >> 1) - bsp->scroll_offset + MARGIN_HEIGHT;
ystart = CLAMP (offset_y, 0, bsp->preview->allocation.height);
yend = CLAMP (offset_y + height, 0, bsp->preview->allocation.height);
mask = temp_buf_data (mask_buf) + (ystart - offset_y) * mask_buf->width;
buf = g_new (guchar, 3 * cell_width);
if (GIMP_IS_BRUSH_PIXMAP (brush))
{
guchar *pixmap = temp_buf_data (pixmap_buf) + (ystart - offset_y) * mask_buf->width * 3;
for (i = ystart; i < yend; i++)
{
b = buf;
for (j = 0; j < width ; j++)
{
bg = (255 - *mask);
*b++ = bg + (*mask * *pixmap++) / 255;
*b++ = bg + (*mask * *pixmap++) / 255;
*b++ = bg + (*mask * *pixmap++) / 255;
mask++;
}
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview), buf,
offset_x, i, width);
}
}
else
{
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...
*/
b = buf;
for (j = 0; j < width; j++)
{
bg = 255 - *mask++;
memset (b, bg, 3);
b += 3;
}
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview), buf,
offset_x, i, width);
}
}
g_free (buf);
offset_x = (col + 1) * bsp->cell_width - indicator_width - MARGIN_WIDTH;
offset_y = (row + 1) * bsp->cell_height - indicator_height - bsp->scroll_offset - MARGIN_HEIGHT;
if (scale)
{
temp_buf_free (mask_buf);
if (GIMP_IS_BRUSH_PIXMAP (brush))
temp_buf_free (pixmap_buf);
for (i = 0; i < indicator_height; i++, offset_y++)
{
if (offset_y > 0 && offset_y < bsp->preview->allocation.height)
(GIMP_IS_REALLY_A_BRUSH_PIPE (brush)) ?
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview),
scale_pipe_indicator_bits[i][0],
offset_x, offset_y, indicator_width) :
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview),
scale_indicator_bits[i][0],
offset_x, offset_y, indicator_width);
}
}
else if (GIMP_IS_REALLY_A_BRUSH_PIPE (brush))
{
for (i = 0; i < indicator_height; i++, offset_y++)
{
if (offset_y > 0 && offset_y < bsp->preview->allocation.height)
gtk_preview_draw_row (GTK_PREVIEW (bsp->preview),
pipe_indicator_bits[i][0],
offset_x, offset_y, indicator_width);
}
}
if (redraw && bsp->redraw)
{
GdkRectangle area;
area.x = col * bsp->cell_width + MARGIN_WIDTH;
area.y = CLAMP (row * bsp->cell_height - bsp->scroll_offset +
MARGIN_HEIGHT,
0, bsp->preview->allocation.height);
area.width = cell_width;
area.height = CLAMP (row * bsp->cell_height - bsp->scroll_offset +
MARGIN_HEIGHT + cell_height,
0, bsp->preview->allocation.height);
gtk_widget_draw (bsp->preview, &area);
}
}
static gint brush_counter = 0;
static void
do_display_brush (GimpBrush *brush,
BrushSelect *bsp)
{
display_brush (bsp, brush,
brush_counter % (bsp->NUM_BRUSH_COLUMNS),
brush_counter / (bsp->NUM_BRUSH_COLUMNS),
FALSE);
brush_counter++;
}
static void
display_brushes (BrushSelect *bsp)
{
if (brush_list == NULL || gimp_brush_list_length (brush_list) == 0)
{
gtk_widget_set_sensitive (bsp->options_box, FALSE);
return;
}
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 (BrushSelect *bsp,
gint row,
gint col)
{
GdkRectangle area;
guchar *buf;
gint yend;
gint ystart;
gint offset_x, offset_y;
gint i;
buf = g_new (guchar, 3 * 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 = CLAMP (offset_y , 0, bsp->preview->allocation.height);
yend = CLAMP (offset_y + bsp->cell_height, 0, bsp->preview->allocation.height);
/* set the buf to white */
memset (buf, 255, 3 * 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 = CLAMP (offset_y , 0, bsp->preview->allocation.height);
yend = CLAMP (offset_y + bsp->cell_height, 0, bsp->preview->allocation.height);
/* set the buf to black */
memset (buf, 0, bsp->cell_width * 3);
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
update_active_brush_field (BrushSelect *bsp)
{
GimpBrush *brush;
gchar buf[32];
brush = gimp_context_get_brush (bsp->context);
if (!brush)
return;
/* Set brush name */
gtk_label_set_text (GTK_LABEL (bsp->brush_name), brush->name);
/* Set brush size */
g_snprintf (buf, sizeof (buf), "(%d x %d)",
brush->mask->width, brush->mask->height);
gtk_label_set_text (GTK_LABEL (bsp->brush_size), buf);
/* Set brush spacing */
gtk_adjustment_set_value (GTK_ADJUSTMENT (bsp->spacing_data),
gimp_brush_get_spacing (brush));
}
static void
preview_calc_scrollbar (BrushSelect *bsp)
{
gint num_rows;
gint page_size;
gint 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");
gtk_signal_emit_by_name (GTK_OBJECT (bsp->sbar_data), "value_changed");
}
static gint
brush_select_resize (GtkWidget *widget,
GdkEvent *event,
BrushSelect *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);
return FALSE;
}
static gint
brush_select_events (GtkWidget *widget,
GdkEvent *event,
BrushSelect *bsp)
{
GdkEventButton *bevent;
GimpBrush *brush;
gint row, col, index;
switch (event->type)
{
case GDK_EXPOSE:
break;
case GDK_2BUTTON_PRESS:
bevent = (GdkEventButton *) event;
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 check if it is editable */
brush = gimp_brush_list_get_brush_by_index (brush_list, index);
if (GIMP_IS_BRUSH_GENERATED (brush))
brush_select_edit_brush_callback (NULL, bsp);
break;
case GDK_BUTTON_PRESS:
bevent = (GdkEventButton *) event;
col = bevent->x / bsp->cell_width;
row = (bevent->y + bsp->scroll_offset) / bsp->cell_height;
index = row * bsp->NUM_BRUSH_COLUMNS + col;
brush = gimp_brush_list_get_brush_by_index (brush_list, index);
if (brush)
bsp->dnd_brush = brush;
else
bsp->dnd_brush = gimp_context_get_brush (bsp->context);
if (bevent->button == 1)
{
/* Get the brush and display the popup brush preview */
if (brush)
{
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 */
gimp_context_set_brush (bsp->context, brush);
/* only if dialog is main one */
if (bsp == brush_select_dialog &&
brush_edit_generated_dialog)
{
brush_edit_generated_set_brush (brush_edit_generated_dialog,
brush);
}
/* Show the brush popup window if the brush is too large */
if (brush->mask->width > bsp->cell_width - 2 * MARGIN_WIDTH ||
brush->mask->height > bsp->cell_height - 2 * MARGIN_HEIGHT ||
GIMP_IS_REALLY_A_BRUSH_PIPE (brush))
{
brush_popup_open (bsp, bevent->x, bevent->y, brush);
}
}
}
/* wheelmouse support */
else if (bevent->button == 4)
{
GtkAdjustment *adj = bsp->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 = bsp->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 */
brush_popup_close (bsp);
}
break;
case GDK_DELETE:
/* g_warning ("test"); */
break;
default:
break;
}
return FALSE;
}
/* 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,
BrushSelect *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_scroll_update (GtkAdjustment *adjustment,
gpointer data)
{
BrushSelect *bsp;
GimpBrush *active;
gint row, col, index;
bsp = (BrushSelect *) data;
if (bsp)
{
bsp->scroll_offset = adjustment->value;
display_brushes (bsp);
active = gimp_context_get_brush (bsp->context);
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
opacity_scale_update (GtkAdjustment *adjustment,
gpointer data)
{
BrushSelect *bsp;
bsp = (BrushSelect *) data;
gtk_signal_handler_block_by_data (GTK_OBJECT (bsp->context), data);
gimp_context_set_opacity (bsp->context, adjustment->value / 100.0);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (bsp->context), data);
}
static void
paint_mode_menu_callback (GtkWidget *widget,
gpointer data)
{
LayerModeEffects paint_mode;
BrushSelect *bsp;
paint_mode = (LayerModeEffects) gtk_object_get_user_data (GTK_OBJECT (widget));
bsp = (BrushSelect *) data;
gimp_context_set_paint_mode (((BrushSelect *) data)->context, paint_mode);
}
static void
spacing_scale_update (GtkAdjustment *adjustment,
gpointer data)
{
BrushSelect *bsp;
bsp = (BrushSelect *) data;
if (bsp == brush_select_dialog)
{
gimp_brush_set_spacing (gimp_context_get_brush (bsp->context),
(gint) adjustment->value);
}
else
{
if (bsp->spacing_value != adjustment->value)
{
bsp->spacing_value = adjustment->value;
brush_change_callbacks (bsp, FALSE);
}
}
}
static void
brush_select_close_callback (GtkWidget *widget,
gpointer data)
{
BrushSelect *bsp;
bsp = (BrushSelect *) 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, TRUE);
gtk_widget_destroy (bsp->shell);
brush_select_free (bsp);
}
}
static void
brush_select_refresh_callback (GtkWidget *widget,
gpointer data)
{
/* re-init the brush list */
brushes_init (FALSE);
}
static void
brush_select_new_brush_callback (GtkWidget *widget,
gpointer data)
{
GimpBrushGenerated *brush;
BrushSelect *bsp;
bsp = (BrushSelect *) data;
brush = gimp_brush_generated_new (10, .5, 0.0, 1.0);
gimp_brush_list_add (brush_list, GIMP_BRUSH (brush));
gimp_context_set_brush (bsp->context, GIMP_BRUSH (brush));
if (brush_edit_generated_dialog)
brush_edit_generated_set_brush (brush_edit_generated_dialog,
GIMP_BRUSH (brush));
brush_select_edit_brush_callback (widget, data);
}
static void
brush_select_edit_brush_callback (GtkWidget *widget,
gpointer data)
{
BrushSelect *bsp;
GimpBrush *brush;
bsp = (BrushSelect *) data;
brush = gimp_context_get_brush (bsp->context);
if (GIMP_IS_BRUSH_GENERATED (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, 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
/* this should never happen */
g_message (_("Sorry, this brush can't be edited."));
}
static void
brush_select_delete_brush_callback (GtkWidget *widget,
gpointer data)
{
BrushSelect *bsp;
GimpBrush *brush;
bsp = (BrushSelect *) data;
brush = gimp_context_get_brush (bsp->context);
if (GIMP_IS_BRUSH_GENERATED (brush))
{
gint index;
gimp_brush_generated_delete (GIMP_BRUSH_GENERATED (brush));
brush_select_freeze_all ();
index = gimp_brush_list_get_brush_index (brush_list, brush);
gimp_brush_list_remove (brush_list, GIMP_BRUSH (brush));
gimp_context_refresh_brushes ();
brush_select_thaw_all ();
}
else
/* this should never happen */
g_message (_("Sorry, this brush can't be deleted."));
}
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