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Gimp/app/tools/gimpcolortool.c
Michael Natterer d51c50820f Bug 496772 – Position shown in the statusbar needs more precision (for 
2008-08-20  Michael Natterer  <mitch@gimp.org>

	Bug 496772 – Position shown in the statusbar needs more
	precision (for some tools)

	* app/display/display-enums.[ch]: add enum GimpCursorPrecision
	which can be one of { PIXEL_CENTER, PIXEL_BORDER, SUBPIXEL }.

	* app/display/gimpdisplayshell-cursor.[ch]: add "precision"
	parameter to gimp_display_shell_update_cursor() and pass it
	on to the statusbar.

	* app/display/gimpstatusbar.[ch]: add "precision" parameters to
	the cursor coordinates APIs, offset the passed coords accordingly
	and display them with one decimal point if SUBPIXEL is requested
	and the display's unit is PIXEL. Keep a second floating-point
	format string around at any time.

	* app/tools/gimptoolcontrol.[ch]: add a "precision" member and API
	so tools can configure the precision they need. Defalt to
	PIXEL_CENTER since that's right for almost all tools.

	* app/display/gimpdisplayshell-callbacks.c: pass the tool's
	precision to gimp_display_shell_update_cursor().

	* app/tools/gimptool.[ch]: add "precision" parameter to
	gimp_tool_push_status_coords() and pass it on to the statusbar.

	* app/tools/gimpaligntool.c
	* app/tools/gimpblendtool.c
	* app/tools/gimpcolortool.c
	* app/tools/gimpcroptool.c
	* app/tools/gimpeditselectiontool.c
	* app/tools/gimpfliptool.c
	* app/tools/gimpfreeselecttool.c
	* app/tools/gimpmovetool.c
	* app/tools/gimppainttool.c
	* app/tools/gimpperspectiveclonetool.c
	* app/tools/gimprectangleselecttool.c
	* app/tools/gimprectangletool.c
	* app/tools/gimptransformtool.c
	* app/tools/gimpvectortool.c: set precision in init() where
	needed. Adjust the precision in the fly when needed, e.g. while
	moving guides or when toggling hard-edge on paint tools. Also pass
	an appropriate precision to gimp_tool_push_status_coords(), which
	is not always the tool's precision as used for cursor display.


svn path=/trunk/; revision=26681
2008-08-20 16:22:09 +00:00

836 lines
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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-2001 Spencer Kimball, Peter Mattis, and others
*
* 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 <gtk/gtk.h>
#include "libgimpmath/gimpmath.h"
#include "libgimpcolor/gimpcolor.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "config/gimpdisplayconfig.h"
#include "core/gimp.h"
#include "core/gimpdata.h"
#include "core/gimpimage.h"
#include "core/gimpimage-pick-color.h"
#include "core/gimpimage-sample-points.h"
#include "core/gimpitem.h"
#include "core/gimpmarshal.h"
#include "core/gimpsamplepoint.h"
#include "widgets/gimpcolormapeditor.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimpdockable.h"
#include "widgets/gimppaletteeditor.h"
#include "widgets/gimpsessioninfo.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "display/gimpdisplayshell-appearance.h"
#include "display/gimpdisplayshell-draw.h"
#include "display/gimpdisplayshell-selection.h"
#include "display/gimpdisplayshell-transform.h"
#include "gimpcoloroptions.h"
#include "gimpcolortool.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
enum
{
PICKED,
LAST_SIGNAL
};
/* local function prototypes */
static void gimp_color_tool_finalize (GObject *object);
static void gimp_color_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display);
static void gimp_color_tool_button_press (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display);
static void gimp_color_tool_button_release (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display);
static void gimp_color_tool_motion (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display);
static void gimp_color_tool_oper_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display);
static void gimp_color_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display);
static void gimp_color_tool_draw (GimpDrawTool *draw_tool);
static gboolean gimp_color_tool_real_pick (GimpColorTool *color_tool,
gint x,
gint y,
GimpImageType *sample_type,
GimpRGB *color,
gint *color_index);
static void gimp_color_tool_pick (GimpColorTool *tool,
GimpColorPickState pick_state,
gint x,
gint y);
static void gimp_color_tool_real_picked (GimpColorTool *color_tool,
GimpColorPickState pick_state,
GimpImageType sample_type,
GimpRGB *color,
gint color_index);
G_DEFINE_TYPE (GimpColorTool, gimp_color_tool, GIMP_TYPE_DRAW_TOOL);
#define parent_class gimp_color_tool_parent_class
static guint gimp_color_tool_signals[LAST_SIGNAL] = { 0 };
static void
gimp_color_tool_class_init (GimpColorToolClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpDrawToolClass *draw_class = GIMP_DRAW_TOOL_CLASS (klass);
gimp_color_tool_signals[PICKED] =
g_signal_new ("picked",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpColorToolClass, picked),
NULL, NULL,
gimp_marshal_VOID__ENUM_ENUM_BOXED_INT,
G_TYPE_NONE, 4,
GIMP_TYPE_COLOR_PICK_STATE,
GIMP_TYPE_IMAGE_TYPE,
GIMP_TYPE_RGB | G_SIGNAL_TYPE_STATIC_SCOPE,
G_TYPE_INT);
object_class->finalize = gimp_color_tool_finalize;
tool_class->control = gimp_color_tool_control;
tool_class->button_press = gimp_color_tool_button_press;
tool_class->button_release = gimp_color_tool_button_release;
tool_class->motion = gimp_color_tool_motion;
tool_class->oper_update = gimp_color_tool_oper_update;
tool_class->cursor_update = gimp_color_tool_cursor_update;
draw_class->draw = gimp_color_tool_draw;
klass->pick = gimp_color_tool_real_pick;
klass->picked = gimp_color_tool_real_picked;
}
static void
gimp_color_tool_init (GimpColorTool *color_tool)
{
GimpTool *tool = GIMP_TOOL (color_tool);
gimp_tool_control_set_action_value_2 (tool->control,
"tools/tools-color-average-radius-set");
color_tool->enabled = FALSE;
color_tool->center_x = 0;
color_tool->center_y = 0;
color_tool->pick_mode = GIMP_COLOR_PICK_MODE_NONE;
color_tool->options = NULL;
color_tool->sample_point = NULL;
color_tool->moving_sample_point = FALSE;
color_tool->sample_point_x = -1;
color_tool->sample_point_y = -1;
}
static void
gimp_color_tool_finalize (GObject *object)
{
GimpColorTool *color_tool = GIMP_COLOR_TOOL (object);
if (color_tool->options)
{
g_object_unref (color_tool->options);
color_tool->options = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_color_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
switch (action)
{
case GIMP_TOOL_ACTION_PAUSE:
break;
case GIMP_TOOL_ACTION_RESUME:
if (color_tool->sample_point &&
gimp_display_shell_get_show_sample_points (shell))
gimp_display_shell_draw_sample_point (shell,
color_tool->sample_point, TRUE);
break;
case GIMP_TOOL_ACTION_HALT:
if (color_tool->sample_point &&
gimp_display_shell_get_show_sample_points (shell))
gimp_display_shell_draw_sample_point (shell,
color_tool->sample_point, FALSE);
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static void
gimp_color_tool_button_press (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
/* Chain up to activate the tool */
GIMP_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state,
display);
if (! color_tool->enabled)
return;
if (color_tool->sample_point)
{
color_tool->moving_sample_point = TRUE;
color_tool->sample_point_x = color_tool->sample_point->x;
color_tool->sample_point_y = color_tool->sample_point->y;
gimp_tool_control_set_scroll_lock (tool->control, TRUE);
gimp_display_shell_selection_control (shell, GIMP_SELECTION_PAUSE);
gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
gimp_tool_push_status_coords (tool, display,
gimp_tool_control_get_precision (tool->control),
_("Move Sample Point: "),
color_tool->sample_point_x,
", ",
color_tool->sample_point_y,
NULL);
}
else
{
gint off_x, off_y;
/* Keep the coordinates of the target */
gimp_item_offsets (GIMP_ITEM (tool->drawable), &off_x, &off_y);
color_tool->center_x = coords->x - off_x;
color_tool->center_y = coords->y - off_y;
gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
gimp_color_tool_pick (color_tool, GIMP_COLOR_PICK_STATE_NEW,
coords->x, coords->y);
}
}
static void
gimp_color_tool_button_release (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
/* Chain up to halt the tool */
GIMP_TOOL_CLASS (parent_class)->button_release (tool, coords, time, state,
release_type, display);
if (! color_tool->enabled)
return;
if (color_tool->moving_sample_point)
{
gint x, y, width, height;
gimp_tool_pop_status (tool, display);
gimp_tool_control_set_scroll_lock (tool->control, FALSE);
gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
{
color_tool->moving_sample_point = FALSE;
color_tool->sample_point_x = -1;
color_tool->sample_point_y = -1;
gimp_display_shell_selection_control (shell, GIMP_SELECTION_RESUME);
return;
}
gimp_display_shell_untransform_viewport (shell, &x, &y, &width, &height);
if ((color_tool->sample_point_x < x ||
color_tool->sample_point_x > (x + width - 1) ||
color_tool->sample_point_y < y ||
color_tool->sample_point_y > (y + height - 1)))
{
if (color_tool->sample_point)
{
gimp_image_remove_sample_point (display->image,
color_tool->sample_point, TRUE);
color_tool->sample_point = NULL;
}
}
else
{
if (color_tool->sample_point)
{
gimp_image_move_sample_point (display->image,
color_tool->sample_point,
color_tool->sample_point_x,
color_tool->sample_point_y,
TRUE);
}
else
{
color_tool->sample_point =
gimp_image_add_sample_point_at_pos (display->image,
color_tool->sample_point_x,
color_tool->sample_point_y,
TRUE);
}
}
gimp_display_shell_selection_control (shell, GIMP_SELECTION_RESUME);
gimp_image_flush (display->image);
if (color_tool->sample_point)
gimp_display_shell_draw_sample_point (shell, color_tool->sample_point,
TRUE);
color_tool->moving_sample_point = FALSE;
color_tool->sample_point_x = -1;
color_tool->sample_point_y = -1;
}
else
{
gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
}
}
static void
gimp_color_tool_motion (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
if (! color_tool->enabled)
return;
if (color_tool->moving_sample_point)
{
gint tx, ty;
gboolean delete_point = FALSE;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
gimp_display_shell_transform_xy (shell,
coords->x, coords->y,
&tx, &ty,
FALSE);
if (tx < 0 || tx > shell->disp_width ||
ty < 0 || ty > shell->disp_height)
{
color_tool->sample_point_x = -1;
color_tool->sample_point_y = -1;
delete_point = TRUE;
}
else
{
gint x, y, width, height;
color_tool->sample_point_x = floor (coords->x);
color_tool->sample_point_y = floor (coords->y);
gimp_display_shell_untransform_viewport (shell, &x, &y,
&width, &height);
if ((color_tool->sample_point_x < x ||
color_tool->sample_point_x > (x + width - 1) ||
color_tool->sample_point_y < y ||
color_tool->sample_point_y > (y + height - 1)))
{
delete_point = TRUE;
}
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
gimp_tool_pop_status (tool, display);
if (delete_point)
{
gimp_tool_push_status (tool, display,
color_tool->sample_point ?
_("Remove Sample Point") :
_("Cancel Sample Point"));
}
else
{
gimp_tool_push_status_coords (tool, display,
gimp_tool_control_get_precision (tool->control),
color_tool->sample_point ?
_("Move Sample Point: ") :
_("Add Sample Point: "),
color_tool->sample_point_x,
", ",
color_tool->sample_point_y,
NULL);
}
}
else
{
gint off_x, off_y;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
gimp_item_offsets (GIMP_ITEM (tool->drawable), &off_x, &off_y);
color_tool->center_x = coords->x - off_x;
color_tool->center_y = coords->y - off_y;
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
gimp_color_tool_pick (color_tool, GIMP_COLOR_PICK_STATE_UPDATE,
coords->x, coords->y);
}
}
static void
gimp_color_tool_oper_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display)
{
GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
GimpSamplePoint *sample_point = NULL;
if (color_tool->enabled &&
gimp_display_shell_get_show_sample_points (shell) && proximity)
{
gint snap_distance;
snap_distance =
GIMP_DISPLAY_CONFIG (display->image->gimp->config)->snap_distance;
sample_point =
gimp_image_find_sample_point (display->image,
coords->x, coords->y,
FUNSCALEX (shell, snap_distance),
FUNSCALEY (shell, snap_distance));
}
if (color_tool->sample_point && color_tool->sample_point != sample_point)
gimp_image_update_sample_point (shell->display->image,
color_tool->sample_point);
color_tool->sample_point = sample_point;
if (color_tool->sample_point)
gimp_display_shell_draw_sample_point (shell, color_tool->sample_point,
TRUE);
}
static void
gimp_color_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display)
{
GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
if (color_tool->enabled)
{
if (color_tool->sample_point)
{
gimp_tool_set_cursor (tool, display,
GIMP_CURSOR_MOUSE,
GIMP_TOOL_CURSOR_COLOR_PICKER,
GIMP_CURSOR_MODIFIER_MOVE);
}
else
{
GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_BAD;
if (gimp_image_coords_in_active_pickable (display->image, coords,
color_tool->options->sample_merged,
FALSE))
{
switch (color_tool->pick_mode)
{
case GIMP_COLOR_PICK_MODE_NONE:
modifier = GIMP_CURSOR_MODIFIER_NONE;
break;
case GIMP_COLOR_PICK_MODE_FOREGROUND:
modifier = GIMP_CURSOR_MODIFIER_FOREGROUND;
break;
case GIMP_COLOR_PICK_MODE_BACKGROUND:
modifier = GIMP_CURSOR_MODIFIER_BACKGROUND;
break;
case GIMP_COLOR_PICK_MODE_PALETTE:
modifier = GIMP_CURSOR_MODIFIER_PLUS;
break;
}
}
gimp_tool_set_cursor (tool, display,
GIMP_CURSOR_COLOR_PICKER,
GIMP_TOOL_CURSOR_COLOR_PICKER,
modifier);
}
return; /* don't chain up */
}
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
}
static void
gimp_color_tool_draw (GimpDrawTool *draw_tool)
{
GimpColorTool *color_tool = GIMP_COLOR_TOOL (draw_tool);
if (color_tool->enabled)
{
if (color_tool->moving_sample_point)
{
if (color_tool->sample_point_x != -1 &&
color_tool->sample_point_y != -1)
{
GimpImage *image = draw_tool->display->image;
gimp_draw_tool_draw_line (draw_tool,
0, color_tool->sample_point_y + 0.5,
gimp_image_get_width (image),
color_tool->sample_point_y + 0.5,
FALSE);
gimp_draw_tool_draw_line (draw_tool,
color_tool->sample_point_x + 0.5, 0,
color_tool->sample_point_x + 0.5,
gimp_image_get_height (image),
FALSE);
}
}
else
{
if (color_tool->options->sample_average)
{
gdouble radius = color_tool->options->average_radius;
gimp_draw_tool_draw_rectangle (draw_tool,
FALSE,
color_tool->center_x - radius,
color_tool->center_y - radius,
2 * radius + 1,
2 * radius + 1,
TRUE);
}
}
}
GIMP_DRAW_TOOL_CLASS (parent_class)->draw (draw_tool);
}
static gboolean
gimp_color_tool_real_pick (GimpColorTool *color_tool,
gint x,
gint y,
GimpImageType *sample_type,
GimpRGB *color,
gint *color_index)
{
GimpTool *tool = GIMP_TOOL (color_tool);
g_return_val_if_fail (tool->display != NULL, FALSE);
g_return_val_if_fail (tool->drawable != NULL, FALSE);
return gimp_image_pick_color (tool->display->image, tool->drawable, x, y,
color_tool->options->sample_merged,
color_tool->options->sample_average,
color_tool->options->average_radius,
sample_type,
color,
color_index);
}
static void
gimp_color_tool_real_picked (GimpColorTool *color_tool,
GimpColorPickState pick_state,
GimpImageType sample_type,
GimpRGB *color,
gint color_index)
{
GimpTool *tool = GIMP_TOOL (color_tool);
GimpContext *context;
GimpDialogFactory *dialog_factory;
/* use this tool's own options here (NOT color_tool->options) */
context = GIMP_CONTEXT (gimp_tool_get_options (tool));
dialog_factory = gimp_dialog_factory_from_name ("dock");
if (color_tool->pick_mode == GIMP_COLOR_PICK_MODE_FOREGROUND ||
color_tool->pick_mode == GIMP_COLOR_PICK_MODE_BACKGROUND)
{
GimpSessionInfo *info;
if (GIMP_IMAGE_TYPE_IS_INDEXED (sample_type))
{
info = gimp_dialog_factory_find_session_info (dialog_factory,
"gimp-indexed-palette");
if (info && info->widget)
{
GimpColormapEditor *editor;
editor = GIMP_COLORMAP_EDITOR (gtk_bin_get_child (GTK_BIN (info->widget)));
gimp_colormap_editor_set_index (editor, color_index, NULL);
}
}
if (TRUE)
{
info = gimp_dialog_factory_find_session_info (dialog_factory,
"gimp-palette-editor");
if (info && info->widget)
{
GimpPaletteEditor *editor;
gint index;
editor = GIMP_PALETTE_EDITOR (gtk_bin_get_child (GTK_BIN (info->widget)));
index = gimp_palette_editor_get_index (editor, color);
if (index != -1)
gimp_palette_editor_set_index (editor, index, NULL);
}
}
}
switch (color_tool->pick_mode)
{
case GIMP_COLOR_PICK_MODE_NONE:
break;
case GIMP_COLOR_PICK_MODE_FOREGROUND:
gimp_context_set_foreground (context, color);
break;
case GIMP_COLOR_PICK_MODE_BACKGROUND:
gimp_context_set_background (context, color);
break;
case GIMP_COLOR_PICK_MODE_PALETTE:
{
GdkScreen *screen;
GtkWidget *dockable;
screen = gtk_widget_get_screen (tool->display->shell);
dockable = gimp_dialog_factory_dialog_raise (dialog_factory, screen,
"gimp-palette-editor",
-1);
if (dockable)
{
GtkWidget *palette_editor;
GimpData *data;
/* don't blink like mad when updating */
if (pick_state == GIMP_COLOR_PICK_STATE_UPDATE)
gimp_dockable_blink_cancel (GIMP_DOCKABLE (dockable));
palette_editor = gtk_bin_get_child (GTK_BIN (dockable));
data = gimp_data_editor_get_data (GIMP_DATA_EDITOR (palette_editor));
if (! data)
{
data = GIMP_DATA (gimp_context_get_palette (context));
gimp_data_editor_set_data (GIMP_DATA_EDITOR (palette_editor),
data);
}
gimp_palette_editor_pick_color (GIMP_PALETTE_EDITOR (palette_editor),
color, pick_state);
}
}
break;
}
}
static void
gimp_color_tool_pick (GimpColorTool *tool,
GimpColorPickState pick_state,
gint x,
gint y)
{
GimpColorToolClass *klass;
GimpImageType sample_type;
GimpRGB color;
gint color_index;
klass = GIMP_COLOR_TOOL_GET_CLASS (tool);
if (klass->pick &&
klass->pick (tool, x, y, &sample_type, &color, &color_index))
{
g_signal_emit (tool, gimp_color_tool_signals[PICKED], 0,
pick_state, sample_type, &color, color_index);
}
}
void
gimp_color_tool_enable (GimpColorTool *color_tool,
GimpColorOptions *options)
{
GimpTool *tool;
g_return_if_fail (GIMP_IS_COLOR_TOOL (color_tool));
g_return_if_fail (GIMP_IS_COLOR_OPTIONS (options));
tool = GIMP_TOOL (color_tool);
if (gimp_tool_control_is_active (tool->control))
{
g_warning ("Trying to enable GimpColorTool while it is active.");
return;
}
if (color_tool->options)
g_object_unref (color_tool->options);
color_tool->options = g_object_ref (options);
color_tool->enabled = TRUE;
}
void
gimp_color_tool_disable (GimpColorTool *color_tool)
{
GimpTool *tool;
g_return_if_fail (GIMP_IS_COLOR_TOOL (color_tool));
tool = GIMP_TOOL (color_tool);
if (gimp_tool_control_is_active (tool->control))
{
g_warning ("Trying to disable GimpColorTool while it is active.");
return;
}
if (color_tool->options)
{
g_object_unref (color_tool->options);
color_tool->options = NULL;
}
color_tool->enabled = FALSE;
}
gboolean
gimp_color_tool_is_enabled (GimpColorTool *color_tool)
{
return color_tool->enabled;
}
void
gimp_color_tool_start_sample_point (GimpTool *tool,
GimpDisplay *display)
{
GimpColorTool *color_tool;
g_return_if_fail (GIMP_IS_COLOR_TOOL (tool));
g_return_if_fail (GIMP_IS_DISPLAY (display));
color_tool = GIMP_COLOR_TOOL (tool);
gimp_display_shell_selection_control (GIMP_DISPLAY_SHELL (display->shell),
GIMP_SELECTION_PAUSE);
tool->display = display;
gimp_tool_control_activate (tool->control);
gimp_tool_control_set_scroll_lock (tool->control, TRUE);
if (color_tool->sample_point)
gimp_display_shell_draw_sample_point (GIMP_DISPLAY_SHELL (display->shell),
color_tool->sample_point, FALSE);
color_tool->sample_point = NULL;
color_tool->moving_sample_point = TRUE;
color_tool->sample_point_x = -1;
color_tool->sample_point_y = -1;
gimp_tool_set_cursor (tool, display,
GIMP_CURSOR_MOUSE,
GIMP_TOOL_CURSOR_COLOR_PICKER,
GIMP_CURSOR_MODIFIER_MOVE);
gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
}
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