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gimp/app/tools/tools.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 <stdlib.h>
#include "appenv.h"
#include "actionarea.h"
#include "airbrush.h"
#include "bezier_select.h"
#include "blend.h"
#include "brightness_contrast.h"
#include "bucket_fill.h"
#include "by_color_select.h"
#include "clone.h"
#include "color_balance.h"
#include "color_picker.h"
#include "context_manager.h"
#include "convolve.h"
#include "crop.h"
#include "curves.h"
#include "devices.h"
#include "dodgeburn.h"
#include "eraser.h"
#include "gdisplay.h"
#include "hue_saturation.h"
#include "ellipse_select.h"
#include "flip_tool.h"
#include "free_select.h"
#include "fuzzy_select.h"
#include "histogram_tool.h"
#include "ink.h"
#include "iscissors.h"
#include "levels.h"
#include "magnify.h"
#include "measure.h"
#include "move.h"
#include "paintbrush.h"
#include "pencil.h"
#include "posterize.h"
#include "rect_select.h"
#include "session.h"
#include "smudge.h"
#include "text_tool.h"
#include "threshold.h"
#include "tools.h"
#include "transform_tool.h"
#include "dialog_handler.h"
#include "config.h"
#include "libgimp/gimpintl.h"
#include "pixmaps2.h"
/* Global Data */
Tool * active_tool = NULL;
/* Local Data */
static GtkWidget *options_shell = NULL;
static GtkWidget *options_vbox = NULL;
static GtkWidget *options_label = NULL;
static GtkWidget *options_reset_button = NULL;
static gint global_tool_ID = 0;
ToolInfo tool_info[] =
{
{
NULL,
N_("Rect Select"),
0,
N_("/Tools/Rect Select"),
"R",
(char **) rect_bits,
N_("Select rectangular regions"),
"ContextHelp/rect-select",
RECT_SELECT,
tools_new_rect_select,
tools_free_rect_select,
NULL
},
{
NULL,
N_("Ellipse Select"),
1,
N_("/Tools/Ellipse Select"),
"E",
(char **) circ_bits,
N_("Select elliptical regions"),
"ContextHelp/ellipse-select",
ELLIPSE_SELECT,
tools_new_ellipse_select,
tools_free_ellipse_select,
NULL
},
{
NULL,
N_("Free Select"),
2,
N_("/Tools/Free Select"),
"F",
(char **) free_bits,
N_("Select hand-drawn regions"),
"ContextHelp/free-select",
FREE_SELECT,
tools_new_free_select,
tools_free_free_select,
NULL
},
{
NULL,
N_("Fuzzy Select"),
3,
N_("/Tools/Fuzzy Select"),
"Z",
(char **) fuzzy_bits,
N_("Select contiguous regions"),
"ContextHelp/fuzzy-select",
FUZZY_SELECT,
tools_new_fuzzy_select,
tools_free_fuzzy_select,
NULL
},
{
NULL,
N_("Bezier Select"),
4,
N_("/Tools/Bezier Select"),
"B",
(char **) bezier_bits,
N_("Select regions using Bezier curves"),
"ContextHelp/bezier-select",
BEZIER_SELECT,
tools_new_bezier_select,
tools_free_bezier_select,
NULL
},
{
NULL,
N_("Intelligent Scissors"),
5,
N_("/Tools/Intelligent Scissors"),
"I",
(char **) iscissors_bits,
N_("Select shapes from image"),
"ContextHelp/iscissors",
ISCISSORS,
tools_new_iscissors,
tools_free_iscissors,
NULL
},
{
NULL,
N_("Move"),
6,
N_("/Tools/Move"),
"M",
(char **) move_bits,
N_("Move layers & selections"),
"ContextHelp/move",
MOVE,
tools_new_move_tool,
tools_free_move_tool,
NULL
},
{
NULL,
N_("Magnify"),
7,
N_("/Tools/Magnify"),
"<shift>M",
(char **) magnify_bits,
N_("Zoom in & out"),
"ContextHelp/magnify",
MAGNIFY,
tools_new_magnify,
tools_free_magnify,
NULL
},
{
NULL,
N_("Crop & Resize"),
8,
N_("/Tools/Crop & Resize"),
"<shift>C",
(char **) crop_bits,
N_("Crop or resize the image"),
"ContextHelp/crop",
CROP,
tools_new_crop,
tools_free_crop,
NULL
},
{
NULL,
N_("Transform"),
9,
N_("/Tools/Transform"),
"<shift>T",
(char **) scale_bits,
N_("Transform the layer or selection"),
"ContextHelp/rotate",
ROTATE,
tools_new_transform_tool,
tools_free_transform_tool,
NULL
}, /* rotate */
{
NULL,
N_("Transform"),
9,
NULL,
NULL,
NULL,
NULL,
NULL,
SCALE,
tools_new_transform_tool,
tools_free_transform_tool,
NULL
}, /* scale */
{
NULL,
N_("Transform"),
9,
NULL,
NULL,
NULL,
NULL,
NULL,
SHEAR,
tools_new_transform_tool,
tools_free_transform_tool,
NULL
}, /* shear */
{
NULL,
N_("Transform"),
9,
NULL,
NULL,
NULL,
NULL,
NULL,
PERSPECTIVE,
tools_new_transform_tool,
tools_free_transform_tool,
NULL
}, /* perspective */
{
NULL,
N_("Flip"),
10,
N_("/Tools/Flip"),
"<shift>F",
(char **) flip_bits,
N_("Flip the layer or selection"),
"ContextHelp/flip",
FLIP,
tools_new_flip,
tools_free_flip_tool,
NULL
},
{
NULL,
N_("Text"),
11,
N_("/Tools/Text"),
"T",
(char **) text_bits,
N_("Add text to the image"),
"ContextHelp/text",
TEXT,
tools_new_text,
tools_free_text,
NULL,
},
{
NULL,
N_("Color Picker"),
12,
N_("/Tools/Color Picker"),
"O",
(char **) colorpicker_bits,
N_("Pick colors from the image"),
"ContextHelp/color-picker",
COLOR_PICKER,
tools_new_color_picker,
tools_free_color_picker,
NULL
},
{
NULL,
N_("Bucket Fill"),
13,
N_("/Tools/Bucket Fill"),
"<shift>B",
(char **) fill_bits,
N_("Fill with a color or pattern"),
"ContextHelp/bucket-fill",
BUCKET_FILL,
tools_new_bucket_fill,
tools_free_bucket_fill,
NULL
},
{
NULL,
N_("Blend"),
14,
N_("/Tools/Blend"),
"L",
(char **) gradient_bits,
N_("Fill with a color gradient"),
"ContextHelp/gradient",
BLEND,
tools_new_blend,
tools_free_blend,
NULL
},
{
NULL,
N_("Pencil"),
15,
N_("/Tools/Pencil"),
"<shift>P",
(char **) pencil_bits,
N_("Draw sharp pencil strokes"),
"ContextHelp/pencil",
PENCIL,
tools_new_pencil,
tools_free_pencil,
NULL
},
{
NULL,
N_("Paintbrush"),
16,
N_("/Tools/Paintbrush"),
"P",
(char **) paint_bits,
N_("Paint fuzzy brush strokes"),
"ContextHelp/paintbrush",
PAINTBRUSH,
tools_new_paintbrush,
tools_free_paintbrush,
NULL
},
{
NULL,
N_("Eraser"),
17,
N_("/Tools/Eraser"),
"<shift>E",
(char **) erase_bits,
N_("Erase to background or transparency"),
"ContextHelp/eraser",
ERASER,
tools_new_eraser,
tools_free_eraser,
NULL
},
{
NULL,
N_("Airbrush"),
18,
N_("/Tools/Airbrush"),
"A",
(char **) airbrush_bits,
N_("Airbrush with variable pressure"),
"ContextHelp/airbrush",
AIRBRUSH,
tools_new_airbrush,
tools_free_airbrush,
NULL
},
{
NULL,
N_("Clone"),
19,
N_("/Tools/Clone"),
"C",
(char **) clone_bits,
N_("Paint using patterns or image regions"),
"ContextHelp/clone",
CLONE,
tools_new_clone,
tools_free_clone,
NULL
},
{
NULL,
N_("Convolve"),
20,
N_("/Tools/Convolve"),
"V",
(char **) blur_bits,
N_("Blur or sharpen"),
"ContextHelp/convolve",
CONVOLVE,
tools_new_convolve,
tools_free_convolve,
NULL
},
{
NULL,
N_("Ink"),
21,
N_("/Tools/Ink"),
"K",
(char **) ink_bits,
N_("Draw in ink"),
"ContextHelp/ink",
INK,
tools_new_ink,
tools_free_ink,
NULL
},
{
NULL,
N_("Dodge or Burn"),
22,
N_("/Tools/DodgeBurn"),
"<shift>D",
(char **) dodge_bits,
N_("Dodge or Burn"),
"ContextHelp/dodgeburn",
DODGEBURN,
tools_new_dodgeburn,
tools_free_dodgeburn,
NULL
},
{
NULL,
N_("Smudge"),
23,
N_("/Tools/Smudge"),
"<shift>S",
(char **) smudge_bits,
N_("Smudge"),
"ContextHelp/smudge",
SMUDGE,
tools_new_smudge,
tools_free_smudge,
NULL
},
{
NULL,
N_("Measure"),
16,
N_("/Tools/Measure"),
"",
(char **) measure_bits,
N_("Measure distances and angles"),
"ContextHelp/measure",
MEASURE,
tools_new_measure_tool,
tools_free_measure_tool,
NULL
},
/* Non-toolbox tools */
{
NULL,
N_("By Color Select"),
24,
N_("/Select/By Color..."),
NULL,
NULL,
NULL,
NULL,
BY_COLOR_SELECT,
tools_new_by_color_select,
tools_free_by_color_select,
by_color_select_initialize
},
{
NULL,
N_("Color Balance"),
25,
N_("/Image/Colors/Color Balance"),
NULL,
NULL,
NULL,
NULL,
COLOR_BALANCE,
tools_new_color_balance,
tools_free_color_balance,
color_balance_initialize
},
{
NULL,
N_("Brightness-Contrast"),
26,
N_("/Image/Colors/Brightness-Contrast"),
NULL,
NULL,
NULL,
NULL,
BRIGHTNESS_CONTRAST,
tools_new_brightness_contrast,
tools_free_brightness_contrast,
brightness_contrast_initialize
},
{
NULL,
N_("Hue-Saturation"),
27,
N_("/Image/Colors/Hue-Saturation"),
NULL,
NULL,
NULL,
NULL,
HUE_SATURATION,
tools_new_hue_saturation,
tools_free_hue_saturation,
hue_saturation_initialize
},
{
NULL,
N_("Posterize"),
28,
N_("/Image/Colors/Posterize"),
NULL,
NULL,
NULL,
NULL,
POSTERIZE,
tools_new_posterize,
tools_free_posterize,
posterize_initialize
},
{
NULL,
N_("Threshold"),
29,
N_("/Image/Colors/Threshold"),
NULL,
NULL,
NULL,
NULL,
THRESHOLD,
tools_new_threshold,
tools_free_threshold,
threshold_initialize
},
{
NULL,
N_("Curves"),
30,
N_("/Image/Colors/Curves"),
NULL,
NULL,
NULL,
NULL,
CURVES,
tools_new_curves,
tools_free_curves,
curves_initialize
},
{
NULL,
N_("Levels"),
31,
N_("/Image/Colors/Levels"),
NULL,
NULL,
NULL,
NULL,
LEVELS,
tools_new_levels,
tools_free_levels,
levels_initialize
},
{
NULL,
N_("Histogram"),
32,
N_("/Image/Histogram"),
NULL,
NULL,
NULL,
NULL,
HISTOGRAM,
tools_new_histogram_tool,
tools_free_histogram_tool,
histogram_tool_initialize
}
};
gint num_tools = sizeof (tool_info) / sizeof (tool_info[0]);
/* Local function declarations */
static void tools_options_show (ToolType);
static void tools_options_hide (ToolType);
static void tools_options_reset_callback (GtkWidget *, gpointer);
static void tools_options_close_callback (GtkWidget *, gpointer);
static gint tools_options_delete_callback (GtkWidget *, GdkEvent *, gpointer);
/* Function definitions */
static void
active_tool_free (void)
{
if (!active_tool)
return;
tools_options_hide (active_tool->type);
(* tool_info[(int) active_tool->type].free_func) (active_tool);
g_free (active_tool);
active_tool = NULL;
}
void
tools_select (ToolType type)
{
/* Care for switching to the tool's private context */
context_manager_set_tool (type);
if (active_tool)
active_tool_free ();
active_tool = (* tool_info[(int) type].new_func) ();
tools_options_show (active_tool->type);
/* Update the device-information dialog */
device_status_update (current_device);
}
void
tools_initialize (ToolType type,
GDisplay *gdisp)
{
/* Tools which have an init function have dialogs and
* cannot be initialized without a display
*/
if (tool_info[(int) type].init_func && !gdisp)
type = RECT_SELECT;
/* Activate the appropriate widget.
* Implicitly calls tools_select()
*/
if (active_tool->type == type)
{
tools_select (type);
}
else
{
gtk_widget_activate (tool_info[type].tool_widget);
}
if (tool_info[(int) type].init_func)
{
(* tool_info[(int) type].init_func) (gdisp);
active_tool->drawable = gimage_active_drawable (gdisp->gimage);
}
/* don't set gdisp_ptr here! (see commands.c) */
}
void
tools_options_dialog_show ()
{
if (!GTK_WIDGET_VISIBLE (options_shell))
{
gtk_widget_show (options_shell);
}
else
{
gdk_window_raise (options_shell->window);
}
}
void
active_tool_control (ToolAction action,
void *gdisp_ptr)
{
if (active_tool)
{
if (active_tool->gdisp_ptr == gdisp_ptr)
{
switch (action)
{
case PAUSE :
if (active_tool->state == ACTIVE)
{
if (! active_tool->paused_count)
{
active_tool->state = PAUSED;
(* active_tool->control_func) (active_tool, action, gdisp_ptr);
}
}
active_tool->paused_count++;
break;
case RESUME :
active_tool->paused_count--;
if (active_tool->state == PAUSED)
{
if (! active_tool->paused_count)
{
active_tool->state = ACTIVE;
(* active_tool->control_func) (active_tool, action, gdisp_ptr);
}
}
break;
case HALT :
active_tool->state = INACTIVE;
(* active_tool->control_func) (active_tool, action, gdisp_ptr);
break;
case DESTROY :
active_tool_free ();
gtk_widget_hide (options_shell);
break;
default:
break;
}
}
else if (action == HALT)
{
active_tool->state = INACTIVE;
}
}
}
/* standard member functions */
static void
standard_button_press_func (Tool *tool,
GdkEventButton *bevent,
gpointer gdisp_ptr)
{
GDisplay *gdisp;
gdisp = gdisp_ptr;
tool->gdisp_ptr = gdisp;
tool->drawable = gimage_active_drawable (gdisp->gimage);
}
static void
standard_button_release_func (Tool *tool,
GdkEventButton *bevent,
gpointer gdisp_ptr)
{
}
static void
standard_motion_func (Tool *tool,
GdkEventMotion *mevent,
gpointer gdisp_ptr)
{
}
static void
standard_arrow_keys_func (Tool *tool,
GdkEventKey *kevent,
gpointer gdisp_ptr)
{
}
static void
standard_modifier_key_func (Tool *tool,
GdkEventKey *kevent,
gpointer gdisp_ptr)
{
}
static void
standard_cursor_update_func (Tool *tool,
GdkEventMotion *mevent,
gpointer gdisp_ptr)
{
GDisplay *gdisp;
gdisp = (GDisplay *) gdisp_ptr;
gdisplay_install_tool_cursor (gdisp, GDK_TOP_LEFT_ARROW);
}
static void
standard_control_func (Tool *tool,
ToolAction action,
gpointer gdisp_ptr)
{
}
/* Create a default tool structure
*
* TODO: objectifying the tools will remove lots of code duplication
*/
Tool *
tools_new_tool (ToolType type)
{
Tool *tool;
tool = g_new (Tool, 1);
tool->type = type;
tool->ID = global_tool_ID++;
tool->state = INACTIVE;
tool->paused_count = 0;
tool->scroll_lock = FALSE; /* Allow scrolling */
tool->auto_snap_to = TRUE; /* Snap to guides */
tool->preserve = TRUE; /* Preserve tool across drawable changes */
tool->gdisp_ptr = NULL;
tool->drawable = NULL;
tool->private = NULL;
tool->button_press_func = standard_button_press_func;
tool->button_release_func = standard_button_release_func;
tool->motion_func = standard_motion_func;
tool->arrow_keys_func = standard_arrow_keys_func;
tool->modifier_key_func = standard_modifier_key_func;
tool->cursor_update_func = standard_cursor_update_func;
tool->control_func = standard_control_func;
return tool;
}
/* Tool options function */
void
tools_options_dialog_new ()
{
GtkWidget *frame;
GtkWidget *vbox;
ActionAreaItem action_items[] =
{
{ N_("Reset"), tools_options_reset_callback, NULL, NULL },
{ N_("Close"), tools_options_close_callback, NULL, NULL }
};
/* The shell and main vbox */
options_shell = gtk_dialog_new ();
/* Register dialog */
dialog_register (options_shell);
gtk_window_set_wmclass (GTK_WINDOW (options_shell), "tool_options", "Gimp");
gtk_window_set_title (GTK_WINDOW (options_shell), _("Tool Options"));
gtk_window_set_policy (GTK_WINDOW (options_shell), FALSE, TRUE, TRUE);
session_set_window_geometry (options_shell, &tool_options_session_info,
FALSE );
/* The outer frame */
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (options_shell)->vbox), frame);
gtk_widget_show (frame);
/* The vbox containing the title frame and the options vbox */
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
/* The title frame */
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
options_label = gtk_label_new ("");
gtk_misc_set_padding (GTK_MISC (options_label), 1, 0);
gtk_container_add (GTK_CONTAINER (frame), options_label);
gtk_widget_show (options_label);
options_vbox = gtk_vbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (options_vbox), 2);
gtk_box_pack_start (GTK_BOX (vbox), options_vbox, FALSE, FALSE, 0);
/* handle the window manager trying to close the window */
gtk_signal_connect (GTK_OBJECT (options_shell), "delete_event",
GTK_SIGNAL_FUNC (tools_options_delete_callback),
options_shell);
action_items[0].user_data = options_shell;
action_items[1].user_data = options_shell;
build_action_area (GTK_DIALOG (options_shell), action_items, 2, 1);
options_reset_button = action_items[0].widget;
gtk_widget_show (options_vbox);
/* hide the separator between the dialog's vbox and the action area */
gtk_widget_hide (GTK_WIDGET (g_list_nth_data (gtk_container_children (GTK_CONTAINER (GTK_BIN (options_shell)->child)), 1)));
}
void
tools_options_dialog_free ()
{
session_get_window_info (options_shell, &tool_options_session_info);
gtk_widget_destroy (options_shell);
}
void
tools_register (ToolType tool_type,
ToolOptions *tool_options)
{
g_return_if_fail (tool_options != NULL);
tool_info [(int) tool_type].tool_options = tool_options;
/* need to check whether the widget is visible...this can happen
* because some tools share options such as the transformation tools
*/
if (! GTK_WIDGET_VISIBLE (tool_options->main_vbox))
{
gtk_box_pack_start (GTK_BOX (options_vbox), tool_options->main_vbox,
TRUE, TRUE, 0);
gtk_widget_show (tool_options->main_vbox);
}
gtk_label_set_text (GTK_LABEL (options_label), _(tool_options->title));
}
static void
tools_options_show (ToolType tooltype)
{
if (tool_info[tooltype].tool_options->main_vbox)
gtk_widget_show (tool_info[tooltype].tool_options->main_vbox);
if (tool_info[tooltype].tool_options->title)
gtk_label_set_text (GTK_LABEL (options_label),
_(tool_info[tooltype].tool_options->title));
if (tool_info[tooltype].tool_options->reset_func)
gtk_widget_set_sensitive (options_reset_button, TRUE);
else
gtk_widget_set_sensitive (options_reset_button, FALSE);
}
static void
tools_options_hide (ToolType tooltype)
{
if (tool_info[tooltype].tool_options)
gtk_widget_hide (tool_info[tooltype].tool_options->main_vbox);
}
/* Tool options callbacks */
static gint
tools_options_delete_callback (GtkWidget *w,
GdkEvent *e,
gpointer client_data)
{
tools_options_close_callback (w, client_data);
return TRUE;
}
static void
tools_options_close_callback (GtkWidget *w,
gpointer client_data)
{
GtkWidget *shell;
shell = (GtkWidget *) client_data;
gtk_widget_hide (shell);
}
static void
tools_options_reset_callback (GtkWidget *w,
gpointer client_data)
{
GtkWidget *shell;
shell = (GtkWidget *) client_data;
if (! active_tool)
return;
if (tool_info[(int) active_tool->type].tool_options->reset_func)
(* tool_info[(int) active_tool->type].tool_options->reset_func) ();
}
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