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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 <glib.h>
-
- #include "apptypes.h"
-
- #include "appenv.h"
- #include "gdisplay.h"
- #include "gimpui.h"
- #include "tools.h"
- #include "perspective_tool.h"
- #include "rotate_tool.h"
- #include "scale_tool.h"
- #include "shear_tool.h"
- #include "transform_core.h"
- #include "transform_tool.h"
-
- #include "libgimp/gimpmath.h"
- #include "libgimp/gimpintl.h"
-
- /* the transform structures */
-
- typedef struct _TransformOptions TransformOptions;
-
- struct _TransformOptions
- {
- ToolOptions tool_options;
-
- ToolType type;
- ToolType type_d;
- GtkWidget *type_w[4]; /* 4 radio buttons */
-
- gboolean smoothing;
- gboolean smoothing_d;
- GtkWidget *smoothing_w;
-
- gint direction;
- gint direction_d;
- GtkWidget *direction_w[2]; /* 2 radio buttons */
-
- gboolean show_grid;
- gboolean show_grid_d;
- GtkWidget *show_grid_w;
-
- gint grid_size;
- gint grid_size_d;
- GtkObject *grid_size_w;
-
- gboolean clip;
- gboolean clip_d;
- GtkWidget *clip_w;
-
- gboolean showpath;
- gboolean showpath_d;
- GtkWidget *showpath_w;
- };
-
-
- /* the transform tool options */
- static TransformOptions *transform_options = NULL;
-
-
- /* local functions */
- static void transform_change_type (ToolType new_type);
-
-
- /* functions */
-
- static void
- transform_show_grid_update (GtkWidget *widget,
- gpointer data)
- {
- static gboolean first_call = TRUE; /* eek, this hack avoids a segfault */
-
- if (first_call)
- {
- first_call = FALSE;
- return;
- }
-
- gimp_toggle_button_update (widget, data);
-
- transform_core_grid_density_changed ();
- }
-
- static void
- transform_show_path_update (GtkWidget *widget,
- gpointer data)
- {
- static gboolean first_call = TRUE; /* eek, this hack avoids a segfault */
-
- if (first_call)
- {
- first_call = FALSE;
- return;
- }
-
- transform_core_showpath_changed (1); /* pause */
- gimp_toggle_button_update (widget, data);
- transform_core_showpath_changed (0); /* resume */
- }
-
- static void
- transform_type_callback (GtkWidget *widget,
- gpointer data)
- {
- transform_change_type ((long) data);
- }
-
- static void
- transform_direction_callback (GtkWidget *widget,
- gpointer data)
- {
- long dir = (long) data;
-
- if (dir == TRANSFORM_TRADITIONAL)
- transform_options->direction = TRANSFORM_TRADITIONAL;
- else
- transform_options->direction = TRANSFORM_CORRECTIVE;
- }
-
- static void
- transform_grid_density_callback (GtkWidget *widget,
- gpointer data)
- {
- transform_options->grid_size =
- (int) (pow (2.0, 7.0 - GTK_ADJUSTMENT (widget)->value) + 0.5);
-
- transform_core_grid_density_changed ();
- }
-
- static void
- transform_options_reset (void)
- {
- TransformOptions *options = transform_options;
-
- gtk_toggle_button_set_active (((options->type_d == ROTATE) ?
- GTK_TOGGLE_BUTTON (options->type_w[0]) :
- ((options->type_d == SCALE) ?
- GTK_TOGGLE_BUTTON (options->type_w[1]) :
- ((options->type_d == SHEAR) ?
- GTK_TOGGLE_BUTTON (options->type_w[2]) :
- GTK_TOGGLE_BUTTON (options->type_w[3])))),
- TRUE);
- gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->smoothing_w),
- options->smoothing_d);
- gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->showpath_w),
- options->showpath_d);
- gtk_toggle_button_set_active (((options->direction_d == TRANSFORM_TRADITIONAL) ?
- GTK_TOGGLE_BUTTON (options->direction_w[0]) :
- GTK_TOGGLE_BUTTON (options->direction_w[1])),
- TRUE);
- gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->show_grid_w),
- options->show_grid_d);
- gtk_adjustment_set_value (GTK_ADJUSTMENT (options->grid_size_w),
- 7.0 - log (options->grid_size_d) / log (2.0));
- gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->clip_w),
- options->clip_d);
- }
-
- static TransformOptions *
- transform_options_new (void)
- {
- TransformOptions *options;
-
- GtkWidget *table;
- GtkWidget *vbox;
- GtkWidget *hbox;
- GtkWidget *label;
- GtkWidget *frame;
- GtkWidget *fbox;
- GtkWidget *grid_density;
-
- /* the new transform tool options structure */
- options = g_new (TransformOptions, 1);
- tool_options_init ((ToolOptions *) options,
- _("Transform Tool"),
- transform_options_reset);
- options->type = options->type_d = ROTATE;
- options->smoothing = options->smoothing_d = TRUE;
- options->showpath = options->showpath_d = TRUE;
- options->clip = options->clip_d = FALSE;
- options->direction = options->direction_d = TRANSFORM_TRADITIONAL;
- options->grid_size = options->grid_size_d = 32;
- options->show_grid = options->show_grid_d = TRUE;
-
- /* the main table */
- table = gtk_table_new (2, 2, FALSE);
- gtk_table_set_col_spacing (GTK_TABLE (table), 0, 2);
- gtk_box_pack_start (GTK_BOX (options->tool_options.main_vbox), table,
- FALSE, FALSE, 0);
-
- /* the left vbox */
- vbox = gtk_vbox_new (FALSE, 2);
- gtk_table_attach_defaults (GTK_TABLE (table), vbox, 0, 1, 0, 1);
-
- /* the transform type radio buttons */
- frame = gimp_radio_group_new (TRUE, _("Transform"),
-
- _("Rotation"), transform_type_callback,
- ROTATE, NULL, &options->type_w[0], TRUE,
- _("Scaling"), transform_type_callback,
- SCALE, NULL, &options->type_w[1], FALSE,
- _("Shearing"), transform_type_callback,
- SHEAR, NULL, &options->type_w[2], FALSE,
- _("Perspective"), transform_type_callback,
- PERSPECTIVE, NULL, &options->type_w[3], FALSE,
-
- NULL);
-
- gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
- gtk_widget_show (frame);
-
- gtk_widget_show (vbox);
-
- /* the right vbox */
- vbox = gtk_vbox_new (FALSE, 2);
- gtk_table_attach_defaults (GTK_TABLE (table), vbox, 1, 2, 0, 1);
-
- /* the second radio frame and box, for transform direction */
- frame = gimp_radio_group_new (TRUE, _("Tool Paradigm"),
-
- _("Traditional"), transform_direction_callback,
- TRANSFORM_TRADITIONAL, NULL,
- &options->direction_w[0], TRUE,
- _("Corrective"), transform_direction_callback,
- TRANSFORM_CORRECTIVE, NULL,
- &options->direction_w[1], FALSE,
-
- NULL);
-
- gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
- gtk_widget_show (frame);
-
- /* the grid frame */
- frame = gtk_frame_new (NULL);
- gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
-
- fbox = gtk_vbox_new (FALSE, 1);
- gtk_container_set_border_width (GTK_CONTAINER (fbox), 2);
- gtk_container_add (GTK_CONTAINER (frame), fbox);
-
- /* the show grid toggle button */
- options->show_grid_w = gtk_check_button_new_with_label (_("Show Grid"));
- gtk_signal_connect (GTK_OBJECT (options->show_grid_w), "toggled",
- GTK_SIGNAL_FUNC (transform_show_grid_update),
- &options->show_grid);
- gtk_box_pack_start (GTK_BOX (fbox), options->show_grid_w, FALSE, FALSE, 0);
- gtk_widget_show (options->show_grid_w);
-
- /* the grid density entry */
- hbox = gtk_hbox_new (FALSE, 6);
- gtk_widget_show (hbox);
- gtk_box_pack_start (GTK_BOX (fbox), hbox, FALSE, FALSE, 0);
- label = gtk_label_new (_("Density:"));
- gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
- gtk_widget_show (label);
-
- options->grid_size_w =
- gtk_adjustment_new (7.0 - log (options->grid_size_d) / log (2.0), 0.0, 5.0,
- 1.0, 1.0, 0.0);
- grid_density =
- gtk_spin_button_new (GTK_ADJUSTMENT (options->grid_size_w), 0, 0);
- gtk_spin_button_set_wrap (GTK_SPIN_BUTTON (grid_density), TRUE);
- gtk_signal_connect (GTK_OBJECT (options->grid_size_w), "value_changed",
- GTK_SIGNAL_FUNC (transform_grid_density_callback),
- &options->grid_size);
- gtk_box_pack_start (GTK_BOX (hbox), grid_density, FALSE, FALSE, 0);
- gtk_widget_show (grid_density);
- gtk_widget_set_sensitive (label, options->show_grid_d);
- gtk_widget_set_sensitive (grid_density, options->show_grid_d);
- gtk_object_set_data (GTK_OBJECT (options->show_grid_w), "set_sensitive",
- grid_density);
- gtk_object_set_data (GTK_OBJECT (grid_density), "set_sensitive", label);
-
- gtk_widget_show (fbox);
- gtk_widget_show (frame);
-
- gtk_widget_show (vbox);
-
- /* the smoothing toggle button */
- options->smoothing_w = gtk_check_button_new_with_label (_("Smoothing"));
- gtk_signal_connect (GTK_OBJECT (options->smoothing_w), "toggled",
- GTK_SIGNAL_FUNC (gimp_toggle_button_update),
- &options->smoothing);
- gtk_table_attach_defaults (GTK_TABLE (table),
- options->smoothing_w, 0, 1, 1, 2);
- gtk_widget_show (options->smoothing_w);
-
- /* the showpath toggle button */
- options->showpath_w = gtk_check_button_new_with_label (_("Show Path"));
- gtk_signal_connect (GTK_OBJECT (options->showpath_w), "toggled",
- GTK_SIGNAL_FUNC (transform_show_path_update),
- &options->showpath);
- gtk_table_attach_defaults (GTK_TABLE (table),
- options->showpath_w, 1, 2, 1, 2);
- gtk_widget_show (options->showpath_w);
-
- gtk_widget_show (table);
-
- /* the clip resulting image toggle button */
- options->clip_w = gtk_check_button_new_with_label (_("Clip Result"));
- gtk_signal_connect (GTK_OBJECT (options->clip_w), "toggled",
- GTK_SIGNAL_FUNC (gimp_toggle_button_update),
- &options->clip);
- gtk_box_pack_start (GTK_BOX (options->tool_options.main_vbox),
- options->clip_w, FALSE, FALSE, 0);
- gtk_widget_show (options->clip_w);
-
- return options;
- }
-
- Tool *
- tools_new_transform_tool (void)
- {
- /* The tool options */
- if (! transform_options)
- {
- transform_options = transform_options_new ();
- tools_register (ROTATE, (ToolOptions *) transform_options);
- tools_register (SCALE, (ToolOptions *) transform_options);
- tools_register (SHEAR, (ToolOptions *) transform_options);
- tools_register (PERSPECTIVE, (ToolOptions *) transform_options);
-
- /* press all default buttons */
- transform_options_reset ();
- }
-
- switch (transform_options->type)
- {
- case ROTATE:
- return tools_new_rotate_tool ();
- break;
- case SCALE:
- return tools_new_scale_tool ();
- break;
- case SHEAR:
- return tools_new_shear_tool ();
- break;
- case PERSPECTIVE:
- return tools_new_perspective_tool ();
- break;
- default :
- return NULL;
- break;
- }
- }
-
- void
- tools_free_transform_tool (Tool *tool)
- {
- switch (transform_options->type)
- {
- case ROTATE:
- tools_free_rotate_tool (tool);
- break;
- case SCALE:
- tools_free_scale_tool (tool);
- break;
- case SHEAR:
- tools_free_shear_tool (tool);
- break;
- case PERSPECTIVE:
- tools_free_perspective_tool (tool);
- break;
- default:
- break;
- }
- }
-
- static void
- transform_change_type (ToolType new_type)
- {
- if (transform_options->type != new_type)
- {
- /* change the type, free the old tool, create the new tool */
- transform_options->type = new_type;
-
- if (gimp_context_get_tool (gimp_context_get_user ()) != new_type)
- gimp_context_set_tool (gimp_context_get_user (), new_type);
- else
- gimp_context_tool_changed (gimp_context_get_user ());
- }
- }
-
- gboolean
- transform_tool_smoothing (void)
- {
- if (!transform_options)
- return TRUE;
- else
- return transform_options->smoothing;
- }
-
- gboolean
- transform_tool_showpath (void)
- {
- if (!transform_options)
- return TRUE;
- else
- return transform_options->showpath;
- }
-
- gboolean
- transform_tool_clip (void)
- {
- if (!transform_options)
- return FALSE;
- else
- return transform_options->clip;
- }
-
- gint
- transform_tool_direction (void)
- {
- if (!transform_options)
- return TRANSFORM_TRADITIONAL;
- else
- return transform_options->direction;
- }
-
- gint
- transform_tool_grid_size (void)
- {
- if (!transform_options)
- return 32;
- else
- return transform_options->grid_size;
- }
-
- gboolean
- transform_tool_show_grid (void)
- {
- if (!transform_options)
- return TRUE;
- else
- return transform_options->show_grid;
- }
-