1167 lines
43 KiB
C
1167 lines
43 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikatool3dtransformgrid.c
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* Copyright (C) 2019 Ell
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libpikabase/pikabase.h"
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#include "libpikamath/pikamath.h"
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#include "display-types.h"
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#include "widgets/pikawidgets-utils.h"
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#include "core/pika-transform-3d-utils.h"
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#include "core/pika-utils.h"
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#include "pikadisplayshell.h"
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#include "pikadisplayshell-transform.h"
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#include "pikatooltransform3dgrid.h"
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#include "pika-intl.h"
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#define CONSTRAINT_MIN_DIST 8.0
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#define PIXELS_PER_REVOLUTION 1000
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enum
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{
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PROP_0,
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PROP_MODE,
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PROP_UNIFIED,
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PROP_CONSTRAIN_AXIS,
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PROP_Z_AXIS,
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PROP_LOCAL_FRAME,
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PROP_CAMERA_X,
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PROP_CAMERA_Y,
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PROP_CAMERA_Z,
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PROP_OFFSET_X,
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PROP_OFFSET_Y,
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PROP_OFFSET_Z,
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PROP_ROTATION_ORDER,
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PROP_ANGLE_X,
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PROP_ANGLE_Y,
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PROP_ANGLE_Z,
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PROP_PIVOT_3D_X,
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PROP_PIVOT_3D_Y,
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PROP_PIVOT_3D_Z
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};
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typedef enum
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{
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AXIS_NONE,
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AXIS_X,
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AXIS_Y
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} Axis;
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struct _PikaToolTransform3DGridPrivate
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{
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PikaTransform3DMode mode;
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gboolean unified;
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gboolean constrain_axis;
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gboolean z_axis;
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gboolean local_frame;
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gdouble camera_x;
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gdouble camera_y;
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gdouble camera_z;
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gdouble offset_x;
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gdouble offset_y;
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gdouble offset_z;
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gint rotation_order;
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gdouble angle_x;
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gdouble angle_y;
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gdouble angle_z;
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gdouble pivot_x;
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gdouble pivot_y;
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gdouble pivot_z;
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PikaTransformHandle handle;
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gdouble orig_x;
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gdouble orig_y;
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gdouble orig_offset_x;
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gdouble orig_offset_y;
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gdouble orig_offset_z;
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PikaMatrix3 orig_transform;
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gdouble last_x;
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gdouble last_y;
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Axis constrained_axis;
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};
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/* local function prototypes */
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static void pika_tool_transform_3d_grid_constructed (GObject *object);
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static void pika_tool_transform_3d_grid_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void pika_tool_transform_3d_grid_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static gint pika_tool_transform_3d_grid_button_press (PikaToolWidget *widget,
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const PikaCoords *coords,
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guint32 time,
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GdkModifierType state,
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PikaButtonPressType press_type);
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static void pika_tool_transform_3d_grid_motion (PikaToolWidget *widget,
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const PikaCoords *coords,
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guint32 time,
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GdkModifierType state);
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static void pika_tool_transform_3d_grid_hover (PikaToolWidget *widget,
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const PikaCoords *coords,
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GdkModifierType state,
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gboolean proximity);
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static void pika_tool_transform_3d_grid_hover_modifier (PikaToolWidget *widget,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state);
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static gboolean pika_tool_transform_3d_grid_get_cursor (PikaToolWidget *widget,
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const PikaCoords *coords,
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GdkModifierType state,
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PikaCursorType *cursor,
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PikaToolCursorType *tool_cursor,
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PikaCursorModifier *modifier);
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static void pika_tool_transform_3d_grid_update_mode (PikaToolTransform3DGrid *grid);
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static void pika_tool_transform_3d_grid_reset_motion (PikaToolTransform3DGrid *grid);
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static gboolean pika_tool_transform_3d_grid_constrain (PikaToolTransform3DGrid *grid,
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gdouble x,
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gdouble y,
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gdouble ox,
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gdouble oy,
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gdouble *tx,
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gdouble *ty);
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static gboolean pika_tool_transform_3d_grid_motion_vanishing_point (PikaToolTransform3DGrid *grid,
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gdouble x,
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gdouble y);
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static gboolean pika_tool_transform_3d_grid_motion_move (PikaToolTransform3DGrid *grid,
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gdouble x,
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gdouble y);
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static gboolean pika_tool_transform_3d_grid_motion_rotate (PikaToolTransform3DGrid *grid,
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gdouble x,
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gdouble y);
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G_DEFINE_TYPE_WITH_PRIVATE (PikaToolTransform3DGrid, pika_tool_transform_3d_grid,
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PIKA_TYPE_TOOL_TRANSFORM_GRID)
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#define parent_class pika_tool_transform_3d_grid_parent_class
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static void
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pika_tool_transform_3d_grid_class_init (PikaToolTransform3DGridClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaToolWidgetClass *widget_class = PIKA_TOOL_WIDGET_CLASS (klass);
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object_class->constructed = pika_tool_transform_3d_grid_constructed;
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object_class->set_property = pika_tool_transform_3d_grid_set_property;
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object_class->get_property = pika_tool_transform_3d_grid_get_property;
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widget_class->button_press = pika_tool_transform_3d_grid_button_press;
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widget_class->motion = pika_tool_transform_3d_grid_motion;
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widget_class->hover = pika_tool_transform_3d_grid_hover;
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widget_class->hover_modifier = pika_tool_transform_3d_grid_hover_modifier;
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widget_class->get_cursor = pika_tool_transform_3d_grid_get_cursor;
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g_object_class_install_property (object_class, PROP_MODE,
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g_param_spec_enum ("mode",
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NULL, NULL,
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PIKA_TYPE_TRANSFORM_3D_MODE,
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PIKA_TRANSFORM_3D_MODE_CAMERA,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_UNIFIED,
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g_param_spec_boolean ("unified",
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NULL, NULL,
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FALSE,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_CONSTRAIN_AXIS,
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g_param_spec_boolean ("constrain-axis",
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NULL, NULL,
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FALSE,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_Z_AXIS,
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g_param_spec_boolean ("z-axis",
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NULL, NULL,
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FALSE,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_LOCAL_FRAME,
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g_param_spec_boolean ("local-frame",
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NULL, NULL,
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FALSE,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_CAMERA_X,
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g_param_spec_double ("camera-x",
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NULL, NULL,
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_CAMERA_Y,
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g_param_spec_double ("camera-y",
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NULL, NULL,
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_CAMERA_Z,
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g_param_spec_double ("camera-z",
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NULL, NULL,
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-(1.0 / 0.0),
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1.0 / 0.0,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_OFFSET_X,
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g_param_spec_double ("offset-x",
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NULL, NULL,
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_OFFSET_Y,
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g_param_spec_double ("offset-y",
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NULL, NULL,
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_OFFSET_Z,
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g_param_spec_double ("offset-z",
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NULL, NULL,
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_ROTATION_ORDER,
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g_param_spec_int ("rotation-order",
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NULL, NULL,
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0, 6, 0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_ANGLE_X,
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g_param_spec_double ("angle-x",
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NULL, NULL,
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_ANGLE_Y,
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g_param_spec_double ("angle-y",
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NULL, NULL,
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_ANGLE_Z,
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g_param_spec_double ("angle-z",
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NULL, NULL,
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_PIVOT_3D_X,
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g_param_spec_double ("pivot-3d-x",
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NULL, NULL,
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_PIVOT_3D_Y,
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g_param_spec_double ("pivot-3d-y",
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NULL, NULL,
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_PIVOT_3D_Z,
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g_param_spec_double ("pivot-3d-z",
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NULL, NULL,
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0.0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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}
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static void
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pika_tool_transform_3d_grid_init (PikaToolTransform3DGrid *grid)
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{
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grid->priv = pika_tool_transform_3d_grid_get_instance_private (grid);
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}
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static void
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pika_tool_transform_3d_grid_constructed (GObject *object)
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{
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G_OBJECT_CLASS (parent_class)->constructed (object);
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g_object_set (object,
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"clip-guides", TRUE,
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"dynamic-handle-size", FALSE,
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NULL);
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}
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static void
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pika_tool_transform_3d_grid_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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PikaToolTransform3DGrid *grid = PIKA_TOOL_TRANSFORM_3D_GRID (object);
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PikaToolTransform3DGridPrivate *priv = grid->priv;
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switch (property_id)
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{
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case PROP_MODE:
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priv->mode = g_value_get_enum (value);
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pika_tool_transform_3d_grid_update_mode (grid);
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break;
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case PROP_UNIFIED:
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priv->unified = g_value_get_boolean (value);
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pika_tool_transform_3d_grid_update_mode (grid);
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break;
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case PROP_CONSTRAIN_AXIS:
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priv->constrain_axis = g_value_get_boolean (value);
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pika_tool_transform_3d_grid_reset_motion (grid);
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break;
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case PROP_Z_AXIS:
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priv->z_axis = g_value_get_boolean (value);
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pika_tool_transform_3d_grid_reset_motion (grid);
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break;
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case PROP_LOCAL_FRAME:
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priv->local_frame = g_value_get_boolean (value);
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pika_tool_transform_3d_grid_reset_motion (grid);
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break;
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case PROP_CAMERA_X:
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priv->camera_x = g_value_get_double (value);
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g_object_set (grid,
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"pivot-x", priv->camera_x,
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NULL);
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break;
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case PROP_CAMERA_Y:
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priv->camera_y = g_value_get_double (value);
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g_object_set (grid,
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"pivot-y", priv->camera_y,
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NULL);
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break;
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case PROP_CAMERA_Z:
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priv->camera_z = g_value_get_double (value);
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break;
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case PROP_OFFSET_X:
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priv->offset_x = g_value_get_double (value);
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break;
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case PROP_OFFSET_Y:
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priv->offset_y = g_value_get_double (value);
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break;
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case PROP_OFFSET_Z:
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priv->offset_z = g_value_get_double (value);
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break;
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case PROP_ROTATION_ORDER:
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priv->rotation_order = g_value_get_int (value);
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break;
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case PROP_ANGLE_X:
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priv->angle_x = g_value_get_double (value);
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break;
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case PROP_ANGLE_Y:
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priv->angle_y = g_value_get_double (value);
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break;
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case PROP_ANGLE_Z:
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priv->angle_z = g_value_get_double (value);
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break;
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case PROP_PIVOT_3D_X:
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priv->pivot_x = g_value_get_double (value);
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break;
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case PROP_PIVOT_3D_Y:
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priv->pivot_y = g_value_get_double (value);
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break;
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case PROP_PIVOT_3D_Z:
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priv->pivot_z = g_value_get_double (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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pika_tool_transform_3d_grid_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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PikaToolTransform3DGrid *grid = PIKA_TOOL_TRANSFORM_3D_GRID (object);
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PikaToolTransform3DGridPrivate *priv = grid->priv;
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switch (property_id)
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{
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case PROP_MODE:
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g_value_set_enum (value, priv->mode);
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break;
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case PROP_UNIFIED:
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g_value_set_boolean (value, priv->unified);
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break;
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case PROP_CONSTRAIN_AXIS:
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g_value_set_boolean (value, priv->constrain_axis);
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break;
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case PROP_Z_AXIS:
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g_value_set_boolean (value, priv->z_axis);
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break;
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case PROP_LOCAL_FRAME:
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g_value_set_boolean (value, priv->local_frame);
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break;
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case PROP_CAMERA_X:
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g_value_set_double (value, priv->camera_x);
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break;
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case PROP_CAMERA_Y:
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g_value_set_double (value, priv->camera_y);
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break;
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case PROP_CAMERA_Z:
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g_value_set_double (value, priv->camera_z);
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break;
|
|
|
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case PROP_OFFSET_X:
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g_value_set_double (value, priv->offset_x);
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break;
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case PROP_OFFSET_Y:
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g_value_set_double (value, priv->offset_y);
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break;
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case PROP_OFFSET_Z:
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g_value_set_double (value, priv->offset_z);
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break;
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case PROP_ROTATION_ORDER:
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g_value_set_int (value, priv->rotation_order);
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break;
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case PROP_ANGLE_X:
|
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g_value_set_double (value, priv->angle_x);
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break;
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case PROP_ANGLE_Y:
|
|
g_value_set_double (value, priv->angle_y);
|
|
break;
|
|
case PROP_ANGLE_Z:
|
|
g_value_set_double (value, priv->angle_z);
|
|
break;
|
|
|
|
case PROP_PIVOT_3D_X:
|
|
g_value_set_double (value, priv->pivot_x);
|
|
break;
|
|
case PROP_PIVOT_3D_Y:
|
|
g_value_set_double (value, priv->pivot_y);
|
|
break;
|
|
case PROP_PIVOT_3D_Z:
|
|
g_value_set_double (value, priv->pivot_z);
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gint
|
|
pika_tool_transform_3d_grid_button_press (PikaToolWidget *widget,
|
|
const PikaCoords *coords,
|
|
guint32 time,
|
|
GdkModifierType state,
|
|
PikaButtonPressType press_type)
|
|
{
|
|
PikaToolTransform3DGrid *grid = PIKA_TOOL_TRANSFORM_3D_GRID (widget);
|
|
PikaToolTransform3DGridPrivate *priv = grid->priv;
|
|
|
|
priv->handle = PIKA_TOOL_WIDGET_CLASS (parent_class)->button_press (
|
|
widget, coords, time, state, press_type);
|
|
|
|
priv->orig_x = coords->x;
|
|
priv->orig_y = coords->y;
|
|
priv->orig_offset_x = priv->offset_x;
|
|
priv->orig_offset_y = priv->offset_y;
|
|
priv->orig_offset_z = priv->offset_z;
|
|
priv->last_x = coords->x;
|
|
priv->last_y = coords->y;
|
|
|
|
pika_tool_transform_3d_grid_reset_motion (grid);
|
|
|
|
return priv->handle;
|
|
}
|
|
|
|
void
|
|
pika_tool_transform_3d_grid_motion (PikaToolWidget *widget,
|
|
const PikaCoords *coords,
|
|
guint32 time,
|
|
GdkModifierType state)
|
|
{
|
|
PikaToolTransform3DGrid *grid = PIKA_TOOL_TRANSFORM_3D_GRID (widget);
|
|
PikaToolTransform3DGridPrivate *priv = grid->priv;
|
|
PikaMatrix3 transform;
|
|
gboolean update = TRUE;
|
|
|
|
switch (priv->handle)
|
|
{
|
|
case PIKA_TRANSFORM_HANDLE_PIVOT:
|
|
update = pika_tool_transform_3d_grid_motion_vanishing_point (
|
|
grid, coords->x, coords->y);
|
|
break;
|
|
|
|
case PIKA_TRANSFORM_HANDLE_CENTER:
|
|
update = pika_tool_transform_3d_grid_motion_move (
|
|
grid, coords->x, coords->y);
|
|
break;
|
|
|
|
case PIKA_TRANSFORM_HANDLE_ROTATION:
|
|
update = pika_tool_transform_3d_grid_motion_rotate (
|
|
grid, coords->x, coords->y);
|
|
break;
|
|
|
|
default:
|
|
g_return_if_reached ();
|
|
}
|
|
|
|
if (update)
|
|
{
|
|
pika_transform_3d_matrix (&transform,
|
|
|
|
priv->camera_x,
|
|
priv->camera_y,
|
|
priv->camera_z,
|
|
|
|
priv->offset_x,
|
|
priv->offset_y,
|
|
priv->offset_z,
|
|
|
|
priv->rotation_order,
|
|
priv->angle_x,
|
|
priv->angle_y,
|
|
priv->angle_z,
|
|
|
|
priv->pivot_x,
|
|
priv->pivot_y,
|
|
priv->pivot_z);
|
|
|
|
g_object_set (widget,
|
|
"transform", &transform,
|
|
NULL);
|
|
}
|
|
}
|
|
|
|
static void
|
|
pika_tool_transform_3d_grid_hover (PikaToolWidget *widget,
|
|
const PikaCoords *coords,
|
|
GdkModifierType state,
|
|
gboolean proximity)
|
|
{
|
|
PIKA_TOOL_WIDGET_CLASS (parent_class)->hover (widget,
|
|
coords, state, proximity);
|
|
|
|
if (proximity &&
|
|
pika_tool_transform_grid_get_handle (PIKA_TOOL_TRANSFORM_GRID (widget)) ==
|
|
PIKA_TRANSFORM_HANDLE_PIVOT)
|
|
{
|
|
pika_tool_widget_set_status (widget,
|
|
_("Click-Drag to move the vanishing point"));
|
|
}
|
|
}
|
|
|
|
static void
|
|
pika_tool_transform_3d_grid_hover_modifier (PikaToolWidget *widget,
|
|
GdkModifierType key,
|
|
gboolean press,
|
|
GdkModifierType state)
|
|
{
|
|
PikaToolTransform3DGrid *grid = PIKA_TOOL_TRANSFORM_3D_GRID (widget);
|
|
PikaToolTransform3DGridPrivate *priv = grid->priv;
|
|
|
|
PIKA_TOOL_WIDGET_CLASS (parent_class)->hover_modifier (widget,
|
|
key, press, state);
|
|
|
|
priv->local_frame = (state & pika_get_extend_selection_mask ()) != 0;
|
|
}
|
|
|
|
static gboolean
|
|
pika_tool_transform_3d_grid_get_cursor (PikaToolWidget *widget,
|
|
const PikaCoords *coords,
|
|
GdkModifierType state,
|
|
PikaCursorType *cursor,
|
|
PikaToolCursorType *tool_cursor,
|
|
PikaCursorModifier *modifier)
|
|
{
|
|
if (! PIKA_TOOL_WIDGET_CLASS (parent_class)->get_cursor (widget,
|
|
coords,
|
|
state,
|
|
cursor,
|
|
tool_cursor,
|
|
modifier))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
if (pika_tool_transform_grid_get_handle (PIKA_TOOL_TRANSFORM_GRID (widget)) ==
|
|
PIKA_TRANSFORM_HANDLE_PIVOT)
|
|
{
|
|
*tool_cursor = PIKA_TOOL_CURSOR_TRANSFORM_3D_CAMERA;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
pika_tool_transform_3d_grid_update_mode (PikaToolTransform3DGrid *grid)
|
|
{
|
|
PikaToolTransform3DGridPrivate *priv = grid->priv;
|
|
|
|
if (priv->unified)
|
|
{
|
|
g_object_set (grid,
|
|
"inside-function", PIKA_TRANSFORM_FUNCTION_MOVE,
|
|
"outside-function", PIKA_TRANSFORM_FUNCTION_ROTATE,
|
|
"use-pivot-handle", TRUE,
|
|
NULL);
|
|
}
|
|
else
|
|
{
|
|
switch (priv->mode)
|
|
{
|
|
case PIKA_TRANSFORM_3D_MODE_CAMERA:
|
|
g_object_set (grid,
|
|
"inside-function", PIKA_TRANSFORM_FUNCTION_NONE,
|
|
"outside-function", PIKA_TRANSFORM_FUNCTION_NONE,
|
|
"use-pivot-handle", TRUE,
|
|
NULL);
|
|
break;
|
|
|
|
case PIKA_TRANSFORM_3D_MODE_MOVE:
|
|
g_object_set (grid,
|
|
"inside-function", PIKA_TRANSFORM_FUNCTION_MOVE,
|
|
"outside-function", PIKA_TRANSFORM_FUNCTION_MOVE,
|
|
"use-pivot-handle", FALSE,
|
|
NULL);
|
|
break;
|
|
|
|
case PIKA_TRANSFORM_3D_MODE_ROTATE:
|
|
g_object_set (grid,
|
|
"inside-function", PIKA_TRANSFORM_FUNCTION_ROTATE,
|
|
"outside-function", PIKA_TRANSFORM_FUNCTION_ROTATE,
|
|
"use-pivot-handle", FALSE,
|
|
NULL);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
pika_tool_transform_3d_grid_reset_motion (PikaToolTransform3DGrid *grid)
|
|
{
|
|
PikaToolTransform3DGridPrivate *priv = grid->priv;
|
|
PikaMatrix3 *transform;
|
|
|
|
priv->constrained_axis = AXIS_NONE;
|
|
|
|
g_object_get (grid,
|
|
"transform", &transform,
|
|
NULL);
|
|
|
|
priv->orig_transform = *transform;
|
|
|
|
g_free (transform);
|
|
}
|
|
|
|
static gboolean
|
|
pika_tool_transform_3d_grid_constrain (PikaToolTransform3DGrid *grid,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble ox,
|
|
gdouble oy,
|
|
gdouble *tx,
|
|
gdouble *ty)
|
|
{
|
|
PikaToolTransform3DGridPrivate *priv = grid->priv;
|
|
|
|
if (! priv->constrain_axis)
|
|
return TRUE;
|
|
|
|
if (priv->constrained_axis == AXIS_NONE)
|
|
{
|
|
PikaDisplayShell *shell;
|
|
gdouble x1, y1;
|
|
gdouble x2, y2;
|
|
|
|
shell = pika_tool_widget_get_shell (PIKA_TOOL_WIDGET (grid));
|
|
|
|
pika_display_shell_transform_xy_f (shell,
|
|
priv->last_x, priv->last_y,
|
|
&x1, &y1);
|
|
pika_display_shell_transform_xy_f (shell,
|
|
x, y,
|
|
&x2, &y2);
|
|
|
|
if (hypot (x2 - x1, y2 - y1) < CONSTRAINT_MIN_DIST)
|
|
return FALSE;
|
|
|
|
if (fabs (*tx - ox) >= fabs (*ty - oy))
|
|
priv->constrained_axis = AXIS_X;
|
|
else
|
|
priv->constrained_axis = AXIS_Y;
|
|
}
|
|
|
|
if (priv->constrained_axis == AXIS_X)
|
|
*ty = oy;
|
|
else
|
|
*tx = ox;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pika_tool_transform_3d_grid_motion_vanishing_point (PikaToolTransform3DGrid *grid,
|
|
gdouble x,
|
|
gdouble y)
|
|
{
|
|
PikaToolTransform3DGridPrivate *priv = grid->priv;
|
|
PikaCoords c = {};
|
|
gdouble pivot_x;
|
|
gdouble pivot_y;
|
|
|
|
if (! pika_tool_transform_3d_grid_constrain (grid,
|
|
x, y,
|
|
priv->last_x, priv->last_y,
|
|
&x, &y))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
c.x = x;
|
|
c.y = y;
|
|
|
|
PIKA_TOOL_WIDGET_CLASS (parent_class)->motion (PIKA_TOOL_WIDGET (grid),
|
|
&c, 0, 0);
|
|
|
|
g_object_get (grid,
|
|
"pivot-x", &pivot_x,
|
|
"pivot-y", &pivot_y,
|
|
NULL);
|
|
|
|
g_object_set (grid,
|
|
"camera-x", pivot_x,
|
|
"camera-y", pivot_y,
|
|
NULL);
|
|
|
|
priv->last_x = c.x;
|
|
priv->last_y = c.y;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pika_tool_transform_3d_grid_motion_move (PikaToolTransform3DGrid *grid,
|
|
gdouble x,
|
|
gdouble y)
|
|
{
|
|
PikaToolTransform3DGridPrivate *priv = grid->priv;
|
|
PikaMatrix4 matrix;
|
|
|
|
if (! priv->z_axis)
|
|
{
|
|
gdouble x1, y1, z1, w1;
|
|
gdouble x2, y2, z2, w2;
|
|
|
|
if (! priv->local_frame)
|
|
{
|
|
pika_matrix4_identity (&matrix);
|
|
}
|
|
else
|
|
{
|
|
PikaMatrix3 transform_inv = priv->orig_transform;;
|
|
|
|
pika_matrix3_invert (&transform_inv);
|
|
|
|
pika_transform_3d_matrix3_to_matrix4 (&transform_inv, &matrix, 2);
|
|
}
|
|
|
|
w1 = pika_matrix4_transform_point (&matrix,
|
|
priv->last_x, priv->last_y, 0.0,
|
|
&x1, &y1, &z1);
|
|
w2 = pika_matrix4_transform_point (&matrix,
|
|
x, y, 0.0,
|
|
&x2, &y2, &z2);
|
|
|
|
if (w1 <= 0.0)
|
|
return FALSE;
|
|
|
|
if (! pika_tool_transform_3d_grid_constrain (grid,
|
|
x, y,
|
|
x1, y1,
|
|
&x2, &y2))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
if (priv->local_frame)
|
|
{
|
|
pika_matrix4_identity (&matrix);
|
|
|
|
pika_transform_3d_matrix4_rotate_euler (&matrix,
|
|
priv->rotation_order,
|
|
priv->angle_x,
|
|
priv->angle_y,
|
|
priv->angle_z,
|
|
0.0, 0.0, 0.0);
|
|
|
|
pika_matrix4_transform_point (&matrix,
|
|
x1, y1, z1,
|
|
&x1, &y1, &z1);
|
|
pika_matrix4_transform_point (&matrix,
|
|
x2, y2, z2,
|
|
&x2, &y2, &z2);
|
|
}
|
|
|
|
if (w2 > 0.0)
|
|
{
|
|
g_object_set (grid,
|
|
"offset-x", priv->offset_x + (x2 - x1),
|
|
"offset-y", priv->offset_y + (y2 - y1),
|
|
"offset-z", priv->offset_z + (z2 - z1),
|
|
NULL);
|
|
|
|
priv->last_x = x;
|
|
priv->last_y = y;
|
|
}
|
|
else
|
|
{
|
|
g_object_set (grid,
|
|
"offset-x", priv->orig_offset_x,
|
|
"offset-y", priv->orig_offset_y,
|
|
"offset-z", priv->orig_offset_z,
|
|
NULL);
|
|
|
|
priv->last_x = priv->orig_x;
|
|
priv->last_y = priv->orig_y;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
PikaVector3 axis;
|
|
gdouble amount;
|
|
|
|
if (! priv->local_frame)
|
|
{
|
|
axis.x = 0.0;
|
|
axis.y = 0.0;
|
|
axis.z = 1.0;
|
|
}
|
|
else
|
|
{
|
|
pika_matrix4_identity (&matrix);
|
|
|
|
pika_transform_3d_matrix4_rotate_euler (&matrix,
|
|
priv->rotation_order,
|
|
priv->angle_x,
|
|
priv->angle_y,
|
|
priv->angle_z,
|
|
0.0, 0.0, 0.0);
|
|
|
|
axis.x = matrix.coeff[0][2];
|
|
axis.y = matrix.coeff[1][2];
|
|
axis.z = matrix.coeff[2][2];
|
|
|
|
if (axis.x < 0.0)
|
|
pika_vector3_neg (&axis);
|
|
}
|
|
|
|
amount = x - priv->last_x;
|
|
|
|
g_object_set (grid,
|
|
"offset-x", priv->offset_x + axis.x * amount,
|
|
"offset-y", priv->offset_y + axis.y * amount,
|
|
"offset-z", priv->offset_z + axis.z * amount,
|
|
NULL);
|
|
|
|
priv->last_x = x;
|
|
priv->last_y = y;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
pika_tool_transform_3d_grid_motion_rotate (PikaToolTransform3DGrid *grid,
|
|
gdouble x,
|
|
gdouble y)
|
|
{
|
|
PikaToolTransform3DGridPrivate *priv = grid->priv;
|
|
PikaDisplayShell *shell;
|
|
PikaMatrix4 matrix;
|
|
PikaMatrix2 basis_inv;
|
|
PikaVector3 omega;
|
|
gdouble z_sign;
|
|
gboolean local_frame;
|
|
|
|
shell = pika_tool_widget_get_shell (PIKA_TOOL_WIDGET (grid));
|
|
|
|
local_frame = priv->local_frame && (priv->constrain_axis || priv->z_axis);
|
|
|
|
if (! local_frame)
|
|
{
|
|
pika_matrix2_identity (&basis_inv);
|
|
z_sign = 1.0;
|
|
}
|
|
else
|
|
{
|
|
{
|
|
PikaVector3 o, n, c;
|
|
|
|
pika_matrix4_identity (&matrix);
|
|
|
|
pika_transform_3d_matrix4_rotate_euler (&matrix,
|
|
priv->rotation_order,
|
|
priv->angle_x,
|
|
priv->angle_y,
|
|
priv->angle_z,
|
|
priv->pivot_x,
|
|
priv->pivot_y,
|
|
priv->pivot_z);
|
|
|
|
pika_transform_3d_matrix4_translate (&matrix,
|
|
priv->offset_x,
|
|
priv->offset_y,
|
|
priv->offset_z);
|
|
|
|
pika_matrix4_transform_point (&matrix,
|
|
0.0, 0.0, 0.0,
|
|
&o.x, &o.y, &o.z);
|
|
pika_matrix4_transform_point (&matrix,
|
|
0.0, 0.0, 1.0,
|
|
&n.x, &n.y, &n.z);
|
|
|
|
c.x = priv->camera_x;
|
|
c.y = priv->camera_y;
|
|
c.z = priv->camera_z;
|
|
|
|
pika_vector3_sub (&n, &n, &o);
|
|
pika_vector3_sub (&c, &c, &o);
|
|
|
|
z_sign = pika_vector3_inner_product (&c, &n) <= 0.0 ? +1.0 : -1.0;
|
|
}
|
|
|
|
{
|
|
PikaVector2 o, u, v;
|
|
|
|
pika_matrix3_transform_point (&priv->orig_transform,
|
|
priv->pivot_x, priv->pivot_y,
|
|
&o.x, &o.y);
|
|
pika_matrix3_transform_point (&priv->orig_transform,
|
|
priv->pivot_x + 1.0, priv->pivot_y,
|
|
&u.x, &u.y);
|
|
pika_matrix3_transform_point (&priv->orig_transform,
|
|
priv->pivot_x, priv->pivot_y + 1.0,
|
|
&v.x, &v.y);
|
|
|
|
pika_vector2_sub (&u, &u, &o);
|
|
pika_vector2_sub (&v, &v, &o);
|
|
|
|
pika_vector2_normalize (&u);
|
|
pika_vector2_normalize (&v);
|
|
|
|
basis_inv.coeff[0][0] = u.x;
|
|
basis_inv.coeff[1][0] = u.y;
|
|
basis_inv.coeff[0][1] = v.x;
|
|
basis_inv.coeff[1][1] = v.y;
|
|
|
|
pika_matrix2_invert (&basis_inv);
|
|
}
|
|
}
|
|
|
|
if (! priv->z_axis)
|
|
{
|
|
PikaVector2 scale;
|
|
gdouble norm;
|
|
|
|
pika_matrix2_transform_point (&basis_inv,
|
|
-(y - priv->last_y),
|
|
x - priv->last_x,
|
|
&omega.x, &omega.y);
|
|
|
|
omega.z = 0.0;
|
|
|
|
if (! pika_tool_transform_3d_grid_constrain (grid,
|
|
x, y,
|
|
0.0, 0.0,
|
|
&omega.x, &omega.y))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
norm = pika_vector3_length (&omega);
|
|
|
|
if (norm > 0.0)
|
|
{
|
|
scale.x = shell->scale_x * omega.y / norm;
|
|
scale.y = shell->scale_y * omega.x / norm;
|
|
|
|
pika_vector3_mul (&omega, pika_vector2_length (&scale));
|
|
pika_vector3_mul (&omega, 2.0 * G_PI / PIXELS_PER_REVOLUTION);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
PikaVector2 o;
|
|
PikaVector2 v1 = {priv->last_x, priv->last_y};
|
|
PikaVector2 v2 = {x, y};
|
|
|
|
g_warn_if_fail (priv->pivot_z == 0.0);
|
|
|
|
pika_matrix3_transform_point (&priv->orig_transform,
|
|
priv->pivot_x, priv->pivot_y,
|
|
&o.x, &o.y);
|
|
|
|
pika_vector2_sub (&v1, &v1, &o);
|
|
pika_vector2_sub (&v2, &v2, &o);
|
|
|
|
pika_vector2_normalize (&v1);
|
|
pika_vector2_normalize (&v2);
|
|
|
|
omega.x = 0.0;
|
|
omega.y = 0.0;
|
|
omega.z = atan2 (pika_vector2_cross_product (&v1, &v2).y,
|
|
pika_vector2_inner_product (&v1, &v2));
|
|
|
|
omega.z *= z_sign;
|
|
}
|
|
|
|
pika_matrix4_identity (&matrix);
|
|
|
|
if (local_frame)
|
|
pika_transform_3d_matrix4_rotate (&matrix, &omega);
|
|
|
|
pika_transform_3d_matrix4_rotate_euler (&matrix,
|
|
priv->rotation_order,
|
|
priv->angle_x,
|
|
priv->angle_y,
|
|
priv->angle_z,
|
|
0.0, 0.0, 0.0);
|
|
|
|
if (! local_frame)
|
|
pika_transform_3d_matrix4_rotate (&matrix, &omega);
|
|
|
|
pika_transform_3d_matrix4_rotate_euler_decompose (&matrix,
|
|
priv->rotation_order,
|
|
&priv->angle_x,
|
|
&priv->angle_y,
|
|
&priv->angle_z);
|
|
|
|
priv->last_x = x;
|
|
priv->last_y = y;
|
|
|
|
g_object_set (grid,
|
|
"angle-x", priv->angle_x,
|
|
"angle-y", priv->angle_y,
|
|
"angle-z", priv->angle_z,
|
|
NULL);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/* public functions */
|
|
|
|
PikaToolWidget *
|
|
pika_tool_transform_3d_grid_new (PikaDisplayShell *shell,
|
|
gdouble x1,
|
|
gdouble y1,
|
|
gdouble x2,
|
|
gdouble y2,
|
|
gdouble camera_x,
|
|
gdouble camera_y,
|
|
gdouble camera_z)
|
|
{
|
|
g_return_val_if_fail (PIKA_IS_DISPLAY_SHELL (shell), NULL);
|
|
|
|
return g_object_new (PIKA_TYPE_TOOL_TRANSFORM_3D_GRID,
|
|
"shell", shell,
|
|
"x1", x1,
|
|
"y1", y1,
|
|
"x2", x2,
|
|
"y2", y2,
|
|
"camera-x", camera_x,
|
|
"camera-y", camera_y,
|
|
"camera-z", camera_z,
|
|
"pivot-3d-x", (x1 + x2) / 2.0,
|
|
"pivot-3d-y", (y1 + y2) / 2.0,
|
|
"pivot-3d-z", 0.0,
|
|
NULL);
|
|
}
|
