dnrops
/
gimp
mirror of https://github.com/GNOME/gimp.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
gimp/app/tools/gimptransformtool.c

1403 lines
45 KiB
C
Raw Blame History

/* The GIMP -- an 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 <stdlib.h>
#include <gtk/gtk.h>
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "base/tile-manager.h"
#include "core/gimp.h"
#include "core/gimpchannel.h"
#include "core/gimpcontext.h"
#include "core/gimpdrawable-transform.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "core/gimpimage-undo-push.h"
#include "core/gimpitem-linked.h"
#include "core/gimplayer.h"
#include "core/gimptoolinfo.h"
#include "vectors/gimpvectors.h"
#include "vectors/gimpstroke.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimpviewabledialog.h"
#include "display/gimpdisplay.h"
#include "display/gimpprogress.h"
#ifdef __GNUC__
#warning FIXME #include "gui/gui-types.h"
#endif
#include "gui/gui-types.h"
#include "gui/info-dialog.h"
#include "gimptoolcontrol.h"
#include "gimptransformoptions.h"
#include "gimptransformtool.h"
#include "gimptransformtool-undo.h"
#include "gimp-intl.h"
#define HANDLE_SIZE 10
/* local function prototypes */
static void gimp_transform_tool_init (GimpTransformTool *tool);
static void gimp_transform_tool_class_init (GimpTransformToolClass *tool);
static GObject * gimp_transform_tool_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
static void gimp_transform_tool_finalize (GObject *object);
static void gimp_transform_tool_initialize (GimpTool *tool,
GimpDisplay *gdisp);
static void gimp_transform_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *gdisp);
static void gimp_transform_tool_button_press (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_transform_tool_button_release (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_transform_tool_motion (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_transform_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_transform_tool_oper_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_transform_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_transform_tool_draw (GimpDrawTool *draw_tool);
static TileManager *
gimp_transform_tool_real_transform (GimpTransformTool *tr_tool,
GimpItem *item,
GimpDisplay *gdisp);
static void gimp_transform_tool_halt (GimpTransformTool *tr_tool);
static void gimp_transform_tool_bounds (GimpTransformTool *tr_tool,
GimpDisplay *gdisp);
static void gimp_transform_tool_dialog (GimpTransformTool *tr_tool);
static void gimp_transform_tool_prepare (GimpTransformTool *tr_tool,
GimpDisplay *gdisp);
static void gimp_transform_tool_recalc (GimpTransformTool *tr_tool,
GimpDisplay *gdisp);
static void gimp_transform_tool_doit (GimpTransformTool *tr_tool,
GimpDisplay *gdisp);
static void gimp_transform_tool_grid_recalc (GimpTransformTool *tr_tool);
static void transform_response (GtkWidget *widget,
gint response_id,
GimpTransformTool *tr_tool);
static void gimp_transform_tool_notify_type (GimpTransformOptions *options,
GParamSpec *pspec,
GimpTransformTool *tr_tool);
static void gimp_transform_tool_notify_grid (GimpTransformOptions *options,
GParamSpec *pspec,
GimpTransformTool *tr_tool);
static GimpDrawToolClass *parent_class = NULL;
GType
gimp_transform_tool_get_type (void)
{
static GType tool_type = 0;
if (! tool_type)
{
static const GTypeInfo tool_info =
{
sizeof (GimpTransformToolClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_transform_tool_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpTransformTool),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_transform_tool_init,
};
tool_type = g_type_register_static (GIMP_TYPE_DRAW_TOOL,
"GimpTransformTool",
&tool_info, 0);
}
return tool_type;
}
static void
gimp_transform_tool_class_init (GimpTransformToolClass *klass)
{
GObjectClass *object_class;
GimpToolClass *tool_class;
GimpDrawToolClass *draw_class;
object_class = G_OBJECT_CLASS (klass);
tool_class = GIMP_TOOL_CLASS (klass);
draw_class = GIMP_DRAW_TOOL_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->constructor = gimp_transform_tool_constructor;
object_class->finalize = gimp_transform_tool_finalize;
tool_class->initialize = gimp_transform_tool_initialize;
tool_class->control = gimp_transform_tool_control;
tool_class->button_press = gimp_transform_tool_button_press;
tool_class->button_release = gimp_transform_tool_button_release;
tool_class->motion = gimp_transform_tool_motion;
tool_class->modifier_key = gimp_transform_tool_modifier_key;
tool_class->oper_update = gimp_transform_tool_oper_update;
tool_class->cursor_update = gimp_transform_tool_cursor_update;
draw_class->draw = gimp_transform_tool_draw;
klass->dialog = NULL;
klass->prepare = NULL;
klass->motion = NULL;
klass->recalc = NULL;
klass->transform = gimp_transform_tool_real_transform;
}
static void
gimp_transform_tool_init (GimpTransformTool *tr_tool)
{
GimpTool *tool;
gint i;
tool = GIMP_TOOL (tr_tool);
gimp_tool_control_set_scroll_lock (tool->control, TRUE);
gimp_tool_control_set_preserve (tool->control, FALSE);
tr_tool->function = TRANSFORM_CREATING;
tr_tool->original = NULL;
for (i = 0; i < TRAN_INFO_SIZE; i++)
{
tr_tool->trans_info[i] = 0.0;
tr_tool->old_trans_info[i] = 0.0;
}
gimp_matrix3_identity (&tr_tool->transform);
tr_tool->use_grid = TRUE;
tr_tool->use_center = TRUE;
tr_tool->ngx = 0;
tr_tool->ngy = 0;
tr_tool->grid_coords = NULL;
tr_tool->tgrid_coords = NULL;
tr_tool->type = GIMP_TRANSFORM_TYPE_LAYER;
tr_tool->direction = GIMP_TRANSFORM_FORWARD;
tr_tool->shell_desc = NULL;
tr_tool->progress_text = _("Transforming...");
tr_tool->info_dialog = NULL;
}
static GObject *
gimp_transform_tool_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpTool *tool;
GimpTransformTool *tr_tool;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
tool = GIMP_TOOL (object);
tr_tool = GIMP_TRANSFORM_TOOL (object);
g_assert (GIMP_IS_TOOL_INFO (tool->tool_info));
if (tr_tool->use_grid)
{
tr_tool->type =
GIMP_TRANSFORM_OPTIONS (tool->tool_info->tool_options)->type;
tr_tool->direction =
GIMP_TRANSFORM_OPTIONS (tool->tool_info->tool_options)->direction;
g_signal_connect_object (tool->tool_info->tool_options,
"notify::type",
G_CALLBACK (gimp_transform_tool_notify_type),
tr_tool, 0);
g_signal_connect_object (tool->tool_info->tool_options,
"notify::direction",
G_CALLBACK (gimp_transform_tool_notify_type),
tr_tool, 0);
g_signal_connect_object (tool->tool_info->tool_options,
"notify::grid-type",
G_CALLBACK (gimp_transform_tool_notify_grid),
tr_tool, 0);
g_signal_connect_object (tool->tool_info->tool_options,
"notify::grid-size",
G_CALLBACK (gimp_transform_tool_notify_grid),
tr_tool, 0);
}
return object;
}
static void
gimp_transform_tool_finalize (GObject *object)
{
GimpTransformTool *tr_tool;
tr_tool = GIMP_TRANSFORM_TOOL (object);
if (tr_tool->original)
{
tile_manager_unref (tr_tool->original);
tr_tool->original = NULL;
}
if (tr_tool->info_dialog)
{
info_dialog_free (tr_tool->info_dialog);
tr_tool->info_dialog = NULL;
}
if (tr_tool->grid_coords)
{
g_free (tr_tool->grid_coords);
tr_tool->grid_coords = NULL;
}
if (tr_tool->tgrid_coords)
{
g_free (tr_tool->tgrid_coords);
tr_tool->tgrid_coords = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_transform_tool_initialize (GimpTool *tool,
GimpDisplay *gdisp)
{
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
if (gdisp != tool->gdisp)
{
GimpDrawable *drawable = gimp_image_active_drawable (gdisp->gimage);
gint i;
if (GIMP_IS_LAYER (drawable) &&
gimp_layer_get_mask (GIMP_LAYER (drawable)))
{
g_message (_("Transformations do not work on "
"layers that contain layer masks."));
return;
}
/* Set the pointer to the active display */
tool->gdisp = gdisp;
tool->drawable = drawable;
/* Initialize the transform tool dialog */
if (! tr_tool->info_dialog)
gimp_transform_tool_dialog (tr_tool);
/* Find the transform bounds for some tools (like scale,
* perspective) that actually need the bounds for
* initializing
*/
gimp_transform_tool_bounds (tr_tool, gdisp);
gimp_transform_tool_prepare (tr_tool, gdisp);
/* Recalculate the transform tool */
gimp_transform_tool_recalc (tr_tool, gdisp);
/* start drawing the bounding box and handles... */
gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), gdisp);
tr_tool->function = TRANSFORM_CREATING;
/* Save the current transformation info */
for (i = 0; i < TRAN_INFO_SIZE; i++)
tr_tool->old_trans_info[i] = tr_tool->trans_info[i];
}
}
static void
gimp_transform_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *gdisp)
{
GimpTransformTool *tr_tool;
tr_tool = GIMP_TRANSFORM_TOOL (tool);
switch (action)
{
case PAUSE:
break;
case RESUME:
gimp_transform_tool_recalc (tr_tool, gdisp);
break;
case HALT:
gimp_transform_tool_halt (tr_tool);
return; /* don't upchain */
break;
default:
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, gdisp);
}
static void
gimp_transform_tool_button_press (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpTransformTool *tr_tool;
tr_tool = GIMP_TRANSFORM_TOOL (tool);
if (tr_tool->function == TRANSFORM_CREATING && tr_tool->use_grid)
gimp_transform_tool_oper_update (tool, coords, state, gdisp);
tr_tool->lastx = tr_tool->startx = coords->x;
tr_tool->lasty = tr_tool->starty = coords->y;
gimp_tool_control_activate (tool->control);
}
static void
gimp_transform_tool_button_release (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpTransformTool *tr_tool;
gint i;
tr_tool = GIMP_TRANSFORM_TOOL (tool);
/* if we are creating, there is nothing to be done...exit */
if (tr_tool->function == TRANSFORM_CREATING && tr_tool->use_grid)
return;
/* if the 3rd button isn't pressed, transform the selected mask */
if (! (state & GDK_BUTTON3_MASK))
{
/* Shift-clicking is another way to approve the transform */
if ((state & GDK_SHIFT_MASK) || ! tr_tool->use_grid)
{
gimp_transform_tool_doit (tr_tool, gdisp);
}
}
else
{
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
/* Restore the previous transformation info */
for (i = 0; i < TRAN_INFO_SIZE; i++)
tr_tool->trans_info[i] = tr_tool->old_trans_info[i];
/* recalculate the tool's transformation matrix */
gimp_transform_tool_recalc (tr_tool, gdisp);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
gimp_tool_control_halt (tool->control);
}
static void
gimp_transform_tool_motion (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpTransformToolClass *tr_tool_class;
GimpTransformTool *tr_tool;
tr_tool = GIMP_TRANSFORM_TOOL (tool);
/* if we are creating, there is nothing to be done so exit. */
if (tr_tool->function == TRANSFORM_CREATING || ! tr_tool->use_grid)
return;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
tr_tool->curx = coords->x;
tr_tool->cury = coords->y;
tr_tool->state = state;
/* recalculate the tool's transformation matrix */
tr_tool_class = GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool);
if (tr_tool_class->motion)
{
tr_tool_class->motion (tr_tool, gdisp);
if (tr_tool_class->recalc)
tr_tool_class->recalc (tr_tool, gdisp);
}
tr_tool->lastx = tr_tool->curx;
tr_tool->lasty = tr_tool->cury;
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
static void
gimp_transform_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpTransformOptions *options;
options = GIMP_TRANSFORM_OPTIONS (tool->tool_info->tool_options);
if (key == GDK_CONTROL_MASK)
{
g_object_set (options,
"constrain-1", ! options->constrain_1,
NULL);
}
else if (key == GDK_MOD1_MASK)
{
g_object_set (options,
"constrain-2", ! options->constrain_2,
NULL);
}
}
static void
gimp_transform_tool_oper_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpTransformTool *tr_tool;
GimpDrawTool *draw_tool;
tr_tool = GIMP_TRANSFORM_TOOL (tool);
draw_tool = GIMP_DRAW_TOOL (tool);
if (! tr_tool->use_grid)
return;
if (gdisp == tool->gdisp)
{
gdouble closest_dist;
gdouble dist;
closest_dist = gimp_draw_tool_calc_distance (draw_tool, gdisp,
coords->x, coords->y,
tr_tool->tx1, tr_tool->ty1);
tr_tool->function = TRANSFORM_HANDLE_1;
dist = gimp_draw_tool_calc_distance (draw_tool, gdisp,
coords->x, coords->y,
tr_tool->tx2, tr_tool->ty2);
if (dist < closest_dist)
{
closest_dist = dist;
tr_tool->function = TRANSFORM_HANDLE_2;
}
dist = gimp_draw_tool_calc_distance (draw_tool, gdisp,
coords->x, coords->y,
tr_tool->tx3, tr_tool->ty3);
if (dist < closest_dist)
{
closest_dist = dist;
tr_tool->function = TRANSFORM_HANDLE_3;
}
dist = gimp_draw_tool_calc_distance (draw_tool, gdisp,
coords->x, coords->y,
tr_tool->tx4, tr_tool->ty4);
if (dist < closest_dist)
{
closest_dist = dist;
tr_tool->function = TRANSFORM_HANDLE_4;
}
if (gimp_draw_tool_on_handle (draw_tool, gdisp,
coords->x, coords->y,
GIMP_HANDLE_CIRCLE,
tr_tool->tcx, tr_tool->tcy,
HANDLE_SIZE, HANDLE_SIZE,
GTK_ANCHOR_CENTER,
FALSE))
{
tr_tool->function = TRANSFORM_HANDLE_CENTER;
}
}
}
static void
gimp_transform_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpTransformTool *tr_tool;
GimpTransformOptions *options;
tr_tool = GIMP_TRANSFORM_TOOL (tool);
options = GIMP_TRANSFORM_OPTIONS (tool->tool_info->tool_options);
if (tr_tool->use_grid)
{
GimpChannel *selection = gimp_image_get_mask (gdisp->gimage);
GdkCursorType ctype = GDK_TOP_LEFT_ARROW;
GimpCursorModifier cmodifier = GIMP_CURSOR_MODIFIER_NONE;
switch (options->type)
{
case GIMP_TRANSFORM_TYPE_LAYER:
{
GimpDrawable *drawable;
drawable = gimp_image_active_drawable (gdisp->gimage);
if (drawable)
{
if (GIMP_IS_LAYER (drawable) &&
gimp_layer_get_mask (GIMP_LAYER (drawable)))
{
ctype = GIMP_BAD_CURSOR;
}
else if (gimp_display_coords_in_active_drawable (gdisp, coords))
{
if (gimp_channel_is_empty (selection) ||
gimp_channel_value (selection, coords->x, coords->y))
{
ctype = GIMP_MOUSE_CURSOR;
}
}
}
}
break;
case GIMP_TRANSFORM_TYPE_SELECTION:
if (gimp_channel_is_empty (selection) ||
gimp_channel_value (selection, coords->x, coords->y))
{
ctype = GIMP_MOUSE_CURSOR;
}
break;
case GIMP_TRANSFORM_TYPE_PATH:
if (gimp_image_get_active_vectors (gdisp->gimage))
ctype = GIMP_MOUSE_CURSOR;
else
ctype = GIMP_BAD_CURSOR;
break;
}
if (tr_tool->use_center && tr_tool->function == TRANSFORM_HANDLE_CENTER)
{
cmodifier = GIMP_CURSOR_MODIFIER_MOVE;
}
gimp_tool_control_set_cursor (tool->control, ctype);
gimp_tool_control_set_cursor_modifier (tool->control, cmodifier);
}
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, gdisp);
}
static void
gimp_transform_tool_draw (GimpDrawTool *draw_tool)
{
GimpTool *tool;
GimpTransformTool *tr_tool;
GimpTransformOptions *options;
gdouble z1, z2, z3, z4;
tr_tool = GIMP_TRANSFORM_TOOL (draw_tool);
if (! tr_tool->use_grid)
return;
tool = GIMP_TOOL (draw_tool);
options = GIMP_TRANSFORM_OPTIONS (tool->tool_info->tool_options);
/* draw the bounding box */
gimp_draw_tool_draw_line (draw_tool,
tr_tool->tx1, tr_tool->ty1,
tr_tool->tx2, tr_tool->ty2,
FALSE);
gimp_draw_tool_draw_line (draw_tool,
tr_tool->tx2, tr_tool->ty2,
tr_tool->tx4, tr_tool->ty4,
FALSE);
gimp_draw_tool_draw_line (draw_tool,
tr_tool->tx3, tr_tool->ty3,
tr_tool->tx4, tr_tool->ty4,
FALSE);
gimp_draw_tool_draw_line (draw_tool,
tr_tool->tx3, tr_tool->ty3,
tr_tool->tx1, tr_tool->ty1,
FALSE);
/* We test if the transformed polygon is convex.
* if z1 and z2 have the same sign as well as z3 and z4
* the polygon is convex. */
z1 = (tr_tool->tx2-tr_tool->tx1)*(tr_tool->ty4-tr_tool->ty1)
-(tr_tool->tx4-tr_tool->tx1)*(tr_tool->ty2-tr_tool->ty1);
z2 = (tr_tool->tx4-tr_tool->tx1)*(tr_tool->ty3-tr_tool->ty1)
-(tr_tool->tx3-tr_tool->tx1)*(tr_tool->ty4-tr_tool->ty1);
z3 = (tr_tool->tx4-tr_tool->tx2)*(tr_tool->ty3-tr_tool->ty2)
-(tr_tool->tx3-tr_tool->tx2)*(tr_tool->ty4-tr_tool->ty2);
z4 = (tr_tool->tx3-tr_tool->tx2)*(tr_tool->ty1-tr_tool->ty2)
-(tr_tool->tx1-tr_tool->tx2)*(tr_tool->ty3-tr_tool->ty2);
/* Draw the grid (not for path transform since it looks ugly) */
if (tr_tool->type != GIMP_TRANSFORM_TYPE_PATH &&
tr_tool->grid_coords &&
tr_tool->tgrid_coords &&
z1 * z2 > 0 &&
z3 * z4 > 0)
{
gint gci, i, k;
k = tr_tool->ngx + tr_tool->ngy;
for (i = 0, gci = 0; i < k; i++, gci += 4)
{
gimp_draw_tool_draw_line (draw_tool,
tr_tool->tgrid_coords[gci],
tr_tool->tgrid_coords[gci + 1],
tr_tool->tgrid_coords[gci + 2],
tr_tool->tgrid_coords[gci + 3],
FALSE);
}
}
/* draw the tool handles */
gimp_draw_tool_draw_handle (draw_tool,
GIMP_HANDLE_SQUARE,
tr_tool->tx1, tr_tool->ty1,
HANDLE_SIZE, HANDLE_SIZE,
GTK_ANCHOR_CENTER,
FALSE);
gimp_draw_tool_draw_handle (draw_tool,
GIMP_HANDLE_SQUARE,
tr_tool->tx2, tr_tool->ty2,
HANDLE_SIZE, HANDLE_SIZE,
GTK_ANCHOR_CENTER,
FALSE);
gimp_draw_tool_draw_handle (draw_tool,
GIMP_HANDLE_SQUARE,
tr_tool->tx3, tr_tool->ty3,
HANDLE_SIZE, HANDLE_SIZE,
GTK_ANCHOR_CENTER,
FALSE);
gimp_draw_tool_draw_handle (draw_tool,
GIMP_HANDLE_SQUARE,
tr_tool->tx4, tr_tool->ty4,
HANDLE_SIZE, HANDLE_SIZE,
GTK_ANCHOR_CENTER,
FALSE);
/* draw the center */
if (tr_tool->use_center)
{
gimp_draw_tool_draw_handle (draw_tool,
GIMP_HANDLE_FILLED_CIRCLE,
tr_tool->tcx, tr_tool->tcy,
HANDLE_SIZE, HANDLE_SIZE,
GTK_ANCHOR_CENTER,
FALSE);
}
if (tr_tool->type == GIMP_TRANSFORM_TYPE_PATH)
{
GimpVectors *vectors;
GimpStroke *stroke = NULL;
GimpMatrix3 matrix = tr_tool->transform;
vectors = gimp_image_get_active_vectors (tool->gdisp->gimage);
if (vectors)
{
if (tr_tool->direction == GIMP_TRANSFORM_BACKWARD)
gimp_matrix3_invert (&matrix);
while ((stroke = gimp_vectors_stroke_get_next (vectors, stroke)))
{
GArray *coords;
gboolean closed;
coords = gimp_stroke_interpolate (stroke, 1.0, &closed);
if (coords && coords->len)
{
gint i;
for (i = 0; i < coords->len; i++)
{
GimpCoords *curr = &g_array_index (coords, GimpCoords, i);
gimp_matrix3_transform_point (&matrix,
curr->x, curr->y,
&curr->x, &curr->y);
}
gimp_draw_tool_draw_strokes (draw_tool,
&g_array_index (coords,
GimpCoords, 0),
coords->len, FALSE, FALSE);
}
if (coords)
g_array_free (coords, TRUE);
}
}
}
}
static TileManager *
gimp_transform_tool_real_transform (GimpTransformTool *tr_tool,
GimpItem *active_item,
GimpDisplay *gdisp)
{
GimpTool *tool;
GimpTransformOptions *options;
GimpProgress *progress;
TileManager *ret = NULL;
tool = GIMP_TOOL (tr_tool);
options = GIMP_TRANSFORM_OPTIONS (tool->tool_info->tool_options);
if (tr_tool->info_dialog)
gtk_widget_set_sensitive (GTK_WIDGET (tr_tool->info_dialog->shell), FALSE);
progress = gimp_progress_start (gdisp, tr_tool->progress_text, FALSE,
NULL, NULL);
if (gimp_item_get_linked (active_item))
gimp_item_linked_transform (active_item, &tr_tool->transform,
options->direction,
options->interpolation, options->clip,
progress ?
gimp_progress_update_and_flush : NULL,
progress);
switch (options->type)
{
case GIMP_TRANSFORM_TYPE_LAYER:
case GIMP_TRANSFORM_TYPE_SELECTION:
{
gboolean clip_result = options->clip;
/* always clip the selction and unfloated channels
* so they keep their size
*/
if (GIMP_IS_CHANNEL (active_item) &&
tile_manager_bpp (tr_tool->original) == 1)
clip_result = TRUE;
ret =
gimp_drawable_transform_tiles_affine (GIMP_DRAWABLE (active_item),
tr_tool->original,
&tr_tool->transform,
options->direction,
options->interpolation,
clip_result,
progress ?
gimp_progress_update_and_flush :
NULL,
progress);
}
break;
case GIMP_TRANSFORM_TYPE_PATH:
gimp_item_transform (active_item,
&tr_tool->transform,
options->direction,
options->interpolation,
options->clip,
progress ?
gimp_progress_update_and_flush :
NULL,
progress);
break;
}
if (progress)
gimp_progress_end (progress);
return ret;
}
static void
gimp_transform_tool_doit (GimpTransformTool *tr_tool,
GimpDisplay *gdisp)
{
GimpTool *tool;
GimpTransformOptions *options;
GimpItem *active_item = NULL;
TileManager *new_tiles;
gboolean new_layer;
tool = GIMP_TOOL (tr_tool);
options = GIMP_TRANSFORM_OPTIONS (tool->tool_info->tool_options);
switch (options->type)
{
case GIMP_TRANSFORM_TYPE_LAYER:
active_item = (GimpItem *) gimp_image_active_drawable (gdisp->gimage);
break;
case GIMP_TRANSFORM_TYPE_SELECTION:
active_item = (GimpItem *) gimp_image_get_mask (gdisp->gimage);
break;
case GIMP_TRANSFORM_TYPE_PATH:
active_item = (GimpItem *) gimp_image_get_active_vectors (gdisp->gimage);
break;
}
if (! active_item)
return;
gimp_set_busy (gdisp->gimage->gimp);
/* undraw the tool before we muck around with the transform matrix */
gimp_draw_tool_stop (GIMP_DRAW_TOOL (tr_tool));
/* We're going to dirty this image, but we want to keep the tool around */
gimp_tool_control_set_preserve (tool->control, TRUE);
/* Start a transform undo group */
gimp_image_undo_group_start (gdisp->gimage, GIMP_UNDO_GROUP_TRANSFORM,
tool->tool_info->blurb);
/* With the old UI, if original is NULL, then this is the
* first transformation. In the new UI, it is always so, right?
*/
g_assert (tr_tool->original == NULL);
/* Copy the current selection to the transform tool's private
* selection pointer, so that the original source can be repeatedly
* modified.
*/
tool->drawable = gimp_image_active_drawable (gdisp->gimage);
switch (options->type)
{
case GIMP_TRANSFORM_TYPE_LAYER:
tr_tool->original = gimp_drawable_transform_cut (tool->drawable,
&new_layer);
break;
case GIMP_TRANSFORM_TYPE_SELECTION:
tr_tool->original = tile_manager_ref (GIMP_DRAWABLE (active_item)->tiles);
tile_manager_set_offsets (tr_tool->original, 0, 0);
break;
case GIMP_TRANSFORM_TYPE_PATH:
tr_tool->original = NULL;
break;
}
/* Send the request for the transformation to the tool...
*/
new_tiles = GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->transform (tr_tool,
active_item,
gdisp);
gimp_transform_tool_prepare (tr_tool, gdisp);
gimp_transform_tool_recalc (tr_tool, gdisp);
switch (options->type)
{
case GIMP_TRANSFORM_TYPE_LAYER:
if (new_tiles)
{
/* paste the new transformed image to the gimage...also implement
* undo...
*/
/* FIXME: we should check if the drawable is still valid */
gimp_drawable_transform_paste (tool->drawable,
new_tiles,
new_layer);
tile_manager_unref (new_tiles);
}
break;
case GIMP_TRANSFORM_TYPE_SELECTION:
if (new_tiles)
{
gimp_channel_push_undo (gimp_image_get_mask (gdisp->gimage), NULL);
tile_manager_unref (GIMP_DRAWABLE (active_item)->tiles);
GIMP_DRAWABLE (active_item)->tiles = new_tiles;
GIMP_CHANNEL (active_item)->bounds_known = FALSE;
gimp_drawable_update (GIMP_DRAWABLE (active_item),
0, 0,
gimp_item_width (active_item),
gimp_item_height (active_item));
}
tile_manager_unref (tr_tool->original);
tr_tool->original = NULL;
break;
case GIMP_TRANSFORM_TYPE_PATH:
/* Nothing to be done */
break;
}
/* Make a note of the new current drawable (since we may have
* a floating selection, etc now.
*/
tool->drawable = gimp_image_active_drawable (gdisp->gimage);
gimp_transform_tool_push_undo (gdisp->gimage, NULL,
tool->ID,
G_TYPE_FROM_INSTANCE (tool),
tr_tool->old_trans_info,
NULL);
/* push the undo group end */
gimp_image_undo_group_end (gdisp->gimage);
/* We're done dirtying the image, and would like to be restarted
* if the image gets dirty while the tool exists
*/
gimp_tool_control_set_preserve (tool->control, FALSE);
gimp_unset_busy (gdisp->gimage->gimp);
gimp_image_flush (gdisp->gimage);
gimp_transform_tool_halt (tr_tool);
}
void
gimp_transform_tool_transform_bounding_box (GimpTransformTool *tr_tool)
{
g_return_if_fail (GIMP_IS_TRANSFORM_TOOL (tr_tool));
gimp_matrix3_transform_point (&tr_tool->transform,
tr_tool->x1, tr_tool->y1,
&tr_tool->tx1, &tr_tool->ty1);
gimp_matrix3_transform_point (&tr_tool->transform,
tr_tool->x2, tr_tool->y1,
&tr_tool->tx2, &tr_tool->ty2);
gimp_matrix3_transform_point (&tr_tool->transform,
tr_tool->x1, tr_tool->y2,
&tr_tool->tx3, &tr_tool->ty3);
gimp_matrix3_transform_point (&tr_tool->transform,
tr_tool->x2, tr_tool->y2,
&tr_tool->tx4, &tr_tool->ty4);
gimp_matrix3_transform_point (&tr_tool->transform,
tr_tool->cx, tr_tool->cy,
&tr_tool->tcx, &tr_tool->tcy);
if (tr_tool->grid_coords != NULL && tr_tool->tgrid_coords != NULL)
{
gint i, k;
gint gci;
gci = 0;
k = (tr_tool->ngx + tr_tool->ngy) * 2;
for (i = 0; i < k; i++)
{
gimp_matrix3_transform_point (&tr_tool->transform,
tr_tool->grid_coords[gci],
tr_tool->grid_coords[gci + 1],
&tr_tool->tgrid_coords[gci],
&tr_tool->tgrid_coords[gci + 1]);
gci += 2;
}
}
}
static void
gimp_transform_tool_halt (GimpTransformTool *tr_tool)
{
GimpTool *tool = GIMP_TOOL (tr_tool);
if (tr_tool->original)
{
tile_manager_unref (tr_tool->original);
tr_tool->original = NULL;
}
/* inactivate the tool */
tr_tool->function = TRANSFORM_CREATING;
if (gimp_draw_tool_is_active (GIMP_DRAW_TOOL (tr_tool)))
gimp_draw_tool_stop (GIMP_DRAW_TOOL (tr_tool));
if (tr_tool->info_dialog)
info_dialog_popdown (tr_tool->info_dialog);
tool->gdisp = NULL;
tool->drawable = NULL;
}
static void
gimp_transform_tool_bounds (GimpTransformTool *tr_tool,
GimpDisplay *gdisp)
{
GimpTransformOptions *options;
options =
GIMP_TRANSFORM_OPTIONS (GIMP_TOOL (tr_tool)->tool_info->tool_options);
/* find the boundaries */
if (tr_tool->original)
{
tile_manager_get_offsets (tr_tool->original, &tr_tool->x1, &tr_tool->y1);
tr_tool->x2 = tr_tool->x1 + tile_manager_width (tr_tool->original);
tr_tool->y2 = tr_tool->y1 + tile_manager_height (tr_tool->original);
}
else
{
switch (options->type)
{
case GIMP_TRANSFORM_TYPE_LAYER:
{
GimpDrawable *drawable;
gint offset_x, offset_y;
drawable = gimp_image_active_drawable (gdisp->gimage);
gimp_item_offsets (GIMP_ITEM (drawable), &offset_x, &offset_y);
gimp_drawable_mask_bounds (drawable,
&tr_tool->x1, &tr_tool->y1,
&tr_tool->x2, &tr_tool->y2);
tr_tool->x1 += offset_x;
tr_tool->y1 += offset_y;
tr_tool->x2 += offset_x;
tr_tool->y2 += offset_y;
}
break;
case GIMP_TRANSFORM_TYPE_SELECTION:
case GIMP_TRANSFORM_TYPE_PATH:
gimp_channel_bounds (gimp_image_get_mask (gdisp->gimage),
&tr_tool->x1, &tr_tool->y1,
&tr_tool->x2, &tr_tool->y2);
break;
}
}
tr_tool->cx = (gdouble) (tr_tool->x1 + tr_tool->x2) / 2.0;
tr_tool->cy = (gdouble) (tr_tool->y1 + tr_tool->y2) / 2.0;
/* changing the bounds invalidates any grid we may have */
if (tr_tool->use_grid)
gimp_transform_tool_grid_recalc (tr_tool);
}
static void
gimp_transform_tool_grid_recalc (GimpTransformTool *tr_tool)
{
GimpTransformOptions *options;
options =
GIMP_TRANSFORM_OPTIONS (GIMP_TOOL (tr_tool)->tool_info->tool_options);
if (tr_tool->grid_coords != NULL)
{
g_free (tr_tool->grid_coords);
tr_tool->grid_coords = NULL;
}
if (tr_tool->tgrid_coords != NULL)
{
g_free (tr_tool->tgrid_coords);
tr_tool->tgrid_coords = NULL;
}
switch (options->grid_type)
{
case GIMP_TRANSFORM_GRID_TYPE_N_LINES:
case GIMP_TRANSFORM_GRID_TYPE_SPACING:
{
GimpTool *tool;
gint i, gci;
gdouble *coords;
gint width, height;
width = MAX (1, tr_tool->x2 - tr_tool->x1);
height = MAX (1, tr_tool->y2 - tr_tool->y1);
tool = GIMP_TOOL (tr_tool);
if (options->grid_type == GIMP_TRANSFORM_GRID_TYPE_N_LINES)
{
if (width <= height)
{
tr_tool->ngx = options->grid_size;
tr_tool->ngy = tr_tool->ngx * MAX (1, height / width);
}
else
{
tr_tool->ngy = options->grid_size;
tr_tool->ngx = tr_tool->ngy * MAX (1, width / height);
}
}
else /* GIMP_TRANSFORM_GRID_TYPE_SPACING */
{
gint grid_size = MAX (2, options->grid_size);
tr_tool->ngx = width / grid_size;
tr_tool->ngy = height / grid_size;
}
tr_tool->grid_coords = coords =
g_new (gdouble, (tr_tool->ngx + tr_tool->ngy) * 4);
tr_tool->tgrid_coords =
g_new (gdouble, (tr_tool->ngx + tr_tool->ngy) * 4);
gci = 0;
for (i = 1; i <= tr_tool->ngx; i++)
{
coords[gci] = tr_tool->x1 + (((gdouble) i) / (tr_tool->ngx + 1) *
(tr_tool->x2 - tr_tool->x1));
coords[gci + 1] = tr_tool->y1;
coords[gci + 2] = coords[gci];
coords[gci + 3] = tr_tool->y2;
gci += 4;
}
for (i = 1; i <= tr_tool->ngy; i++)
{
coords[gci] = tr_tool->x1;
coords[gci + 1] = tr_tool->y1 + (((gdouble) i) / (tr_tool->ngy + 1) *
(tr_tool->y2 - tr_tool->y1));
coords[gci + 2] = tr_tool->x2;
coords[gci + 3] = coords[gci + 1];
gci += 4;
}
}
default:
break;
}
}
#define RESPONSE_RESET 1
static void
gimp_transform_tool_dialog (GimpTransformTool *tr_tool)
{
GimpToolInfo *tool_info;
const gchar *stock_id;
gchar *identifier;
if (! GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->dialog)
return;
tool_info = GIMP_TOOL (tr_tool)->tool_info;
stock_id = gimp_viewable_get_stock_id (GIMP_VIEWABLE (tool_info));
tr_tool->info_dialog = info_dialog_new (NULL,
tool_info->blurb,
GIMP_OBJECT (tool_info)->name,
stock_id,
tr_tool->shell_desc,
GIMP_TOOL (tr_tool)->gdisp->shell,
gimp_standard_help_func,
tool_info->help_id);
gtk_dialog_add_buttons (GTK_DIALOG (tr_tool->info_dialog->shell),
GIMP_STOCK_RESET, RESPONSE_RESET,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
stock_id, GTK_RESPONSE_OK,
NULL);
g_signal_connect (tr_tool->info_dialog->shell, "response",
G_CALLBACK (transform_response),
tr_tool);
GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->dialog (tr_tool);
identifier = g_strconcat (GIMP_OBJECT (tool_info)->name, "-dialog", NULL);
gimp_dialog_factory_add_foreign (gimp_dialog_factory_from_name ("toplevel"),
identifier,
tr_tool->info_dialog->shell);
g_free (identifier);
}
static void
gimp_transform_tool_prepare (GimpTransformTool *tr_tool,
GimpDisplay *gdisp)
{
if (tr_tool->info_dialog)
{
gimp_viewable_dialog_set_viewable (GIMP_VIEWABLE_DIALOG (tr_tool->info_dialog->shell),
GIMP_VIEWABLE (gimp_image_active_drawable (gdisp->gimage)));
gtk_widget_set_sensitive (GTK_WIDGET (tr_tool->info_dialog->shell), TRUE);
}
if (GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->prepare)
GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->prepare (tr_tool, gdisp);
}
static void
gimp_transform_tool_recalc (GimpTransformTool *tr_tool,
GimpDisplay *gdisp)
{
gimp_transform_tool_bounds (tr_tool, gdisp);
if (GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->recalc)
GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->recalc (tr_tool, gdisp);
}
static void
transform_response (GtkWidget *widget,
gint response_id,
GimpTransformTool *tr_tool)
{
switch (response_id)
{
case RESPONSE_RESET:
{
GimpTool *tool;
gint i;
tool = GIMP_TOOL (tr_tool);
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
/* Restore the previous transformation info */
for (i = 0; i < TRAN_INFO_SIZE; i++)
tr_tool->trans_info[i] = tr_tool->old_trans_info[i];
/* recalculate the tool's transformation matrix */
gimp_transform_tool_recalc (tr_tool, tool->gdisp);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
break;
case GTK_RESPONSE_OK:
gimp_transform_tool_doit (tr_tool, GIMP_TOOL (tr_tool)->gdisp);
break;
default:
gimp_transform_tool_halt (tr_tool);
break;
}
}
static void
gimp_transform_tool_notify_type (GimpTransformOptions *options,
GParamSpec *pspec,
GimpTransformTool *tr_tool)
{
if (tr_tool->function != TRANSFORM_CREATING)
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tr_tool));
tr_tool->type = options->type;
tr_tool->direction = options->direction;
if (tr_tool->function != TRANSFORM_CREATING)
{
/* recalculate the tool's transformation matrix */
gimp_transform_tool_recalc (tr_tool, GIMP_TOOL (tr_tool)->gdisp);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tr_tool));
}
}
static void
gimp_transform_tool_notify_grid (GimpTransformOptions *options,
GParamSpec *pspec,
GimpTransformTool *tr_tool)
{
if (tr_tool->function == TRANSFORM_CREATING)
return;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tr_tool));
gimp_transform_tool_grid_recalc (tr_tool);
gimp_transform_tool_transform_bounding_box (tr_tool);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tr_tool));
}
Reference in New Issue View Git Blame Copy Permalink