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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpbrushselect.c
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gimp.h"
typedef struct
{
gchar *brush_callback;
guint idle_id;
gchar *brush_name;
gdouble opacity;
gint spacing;
gint paint_mode;
gint width;
gint height;
guchar *brush_mask_data;
GimpRunBrushCallback callback;
gboolean closing;
gpointer data;
} GimpBrushData;
/* local function prototypes */
static void gimp_brush_data_free (GimpBrushData *data);
static void gimp_temp_brush_run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gboolean gimp_temp_brush_run_idle (GimpBrushData *brush_data);
/* private variables */
static GHashTable *gimp_brush_select_ht = NULL;
/* public functions */
const gchar *
gimp_brush_select_new (const gchar *title,
const gchar *brush_name,
gdouble opacity,
gint spacing,
GimpLayerMode paint_mode,
GimpRunBrushCallback callback,
gpointer data)
{
static const GimpParamDef args[] =
{
{ GIMP_PDB_STRING, "str", "String" },
{ GIMP_PDB_FLOAT, "opacity", "Opacity" },
{ GIMP_PDB_INT32, "spacing", "Spacing" },
{ GIMP_PDB_INT32, "paint-mode", "Paint mode" },
{ GIMP_PDB_INT32, "mask-width", "Brush width" },
{ GIMP_PDB_INT32, "mask-height", "Brush height" },
{ GIMP_PDB_INT32, "mask-len", "Length of brush mask data" },
{ GIMP_PDB_INT8ARRAY, "mask-data", "The brush mask data" },
{ GIMP_PDB_INT32, "dialog-status", "If the dialog was closing "
"[0 = No, 1 = Yes]" }
};
gchar *brush_callback = gimp_procedural_db_temp_name ();
gimp_install_temp_proc (brush_callback,
"Temporary brush popup callback procedure",
"",
"",
"",
"",
NULL,
"",
GIMP_TEMPORARY,
G_N_ELEMENTS (args), 0,
args, NULL,
gimp_temp_brush_run);
if (gimp_brushes_popup (brush_callback, title, brush_name,
opacity, spacing, paint_mode))
{
GimpBrushData *brush_data;
gimp_extension_enable (); /* Allow callbacks to be watched */
/* Now add to hash table so we can find it again */
if (! gimp_brush_select_ht)
{
gimp_brush_select_ht =
g_hash_table_new_full (g_str_hash, g_str_equal,
g_free,
(GDestroyNotify) gimp_brush_data_free);
}
brush_data = g_slice_new0 (GimpBrushData);
brush_data->brush_callback = brush_callback;
brush_data->callback = callback;
brush_data->data = data;
g_hash_table_insert (gimp_brush_select_ht, brush_callback, brush_data);
return brush_callback;
}
gimp_uninstall_temp_proc (brush_callback);
g_free (brush_callback);
return NULL;
}
void
gimp_brush_select_destroy (const gchar *brush_callback)
{
GimpBrushData *brush_data;
g_return_if_fail (brush_callback != NULL);
g_return_if_fail (gimp_brush_select_ht != NULL);
brush_data = g_hash_table_lookup (gimp_brush_select_ht, brush_callback);
if (! brush_data)
{
g_warning ("Can't find internal brush data");
return;
}
if (brush_data->idle_id)
g_source_remove (brush_data->idle_id);
g_free (brush_data->brush_name);
g_free (brush_data->brush_mask_data);
if (brush_data->brush_callback)
gimp_brushes_close_popup (brush_data->brush_callback);
gimp_uninstall_temp_proc (brush_callback);
g_hash_table_remove (gimp_brush_select_ht, brush_callback);
}
/* private functions */
static void
gimp_brush_data_free (GimpBrushData *data)
{
g_slice_free (GimpBrushData, data);
}
static void
gimp_temp_brush_run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpBrushData *brush_data;
brush_data = g_hash_table_lookup (gimp_brush_select_ht, name);
if (! brush_data)
{
g_warning ("Can't find internal brush data");
}
else
{
g_free (brush_data->brush_name);
g_free (brush_data->brush_mask_data);
brush_data->brush_name = g_strdup (param[0].data.d_string);
brush_data->opacity = param[1].data.d_float;
brush_data->spacing = param[2].data.d_int32;
brush_data->paint_mode = param[3].data.d_int32;
brush_data->width = param[4].data.d_int32;
brush_data->height = param[5].data.d_int32;
brush_data->brush_mask_data = g_memdup (param[7].data.d_int8array,
param[6].data.d_int32);
brush_data->closing = param[8].data.d_int32;
if (! brush_data->idle_id)
brush_data->idle_id = g_idle_add ((GSourceFunc) gimp_temp_brush_run_idle,
brush_data);
}
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = GIMP_PDB_SUCCESS;
}
static gboolean
gimp_temp_brush_run_idle (GimpBrushData *brush_data)
{
brush_data->idle_id = 0;
if (brush_data->callback)
brush_data->callback (brush_data->brush_name,
brush_data->opacity,
brush_data->spacing,
brush_data->paint_mode,
brush_data->width,
brush_data->height,
brush_data->brush_mask_data,
brush_data->closing,
brush_data->data);
if (brush_data->closing)
{
gchar *brush_callback = brush_data->brush_callback;
brush_data->brush_callback = NULL;
gimp_brush_select_destroy (brush_callback);
}
return FALSE;
}
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