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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/space_view3d/view3d_manipulator_camera.c
* \ingroup spview3d
*/
#include "BLI_blenlib.h"
#include "BLI_math.h"
#include "BLI_utildefines.h"
#include "BKE_camera.h"
#include "BKE_context.h"
#include "DNA_object_types.h"
#include "DNA_camera_types.h"
#include "ED_armature.h"
#include "ED_screen.h"
#include "ED_manipulator_library.h"
#include "UI_resources.h"
#include "MEM_guardedalloc.h"
#include "RNA_access.h"
#include "WM_api.h"
#include "WM_types.h"
#include "view3d_intern.h" /* own include */
/* -------------------------------------------------------------------- */
/** \name Camera Manipulators
* \{ */
struct CameraWidgetGroup {
wmManipulator *dop_dist;
wmManipulator *focal_len;
wmManipulator *ortho_scale;
};
static bool WIDGETGROUP_camera_poll(const bContext *C, wmManipulatorGroupType *UNUSED(wgt))
{
Object *ob = CTX_data_active_object(C);
return (ob && ob->type == OB_CAMERA);
}
static void cameragroup_property_setup(wmManipulator *widget, Object *ob, Camera *ca, const bool is_ortho)
{
const float scale[3] = {1.0f / len_v3(ob->obmat[0]), 1.0f / len_v3(ob->obmat[1]), 1.0f / len_v3(ob->obmat[2])};
const float scale_fac = ca->drawsize;
const float drawsize = is_ortho ?
(0.5f * ca->ortho_scale) :
(scale_fac / ((scale[0] + scale[1] + scale[2]) / 3.0f));
const float half_sensor = 0.5f * ((ca->sensor_fit == CAMERA_SENSOR_FIT_VERT) ? ca->sensor_y : ca->sensor_x);
const char *propname = is_ortho ? "ortho_scale" : "lens";
PointerRNA camera_ptr;
float min, max, range;
float step, precision;
RNA_pointer_create(&ca->id, &RNA_Camera, ca, &camera_ptr);
/* get property range */
PropertyRNA *prop = RNA_struct_find_property(&camera_ptr, propname);
RNA_property_float_ui_range(&camera_ptr, prop, &min, &max, &step, &precision);
range = max - min;
ED_manipulator_arrow3d_set_range_fac(widget, is_ortho ? (scale_fac * range) : (drawsize * range / half_sensor));
}
static void WIDGETGROUP_camera_setup(const bContext *C, wmManipulatorGroup *mgroup)
{
Object *ob = CTX_data_active_object(C);
Camera *ca = ob->data;
float dir[3];
const wmManipulatorType *wt_arrow = WM_manipulatortype_find("MANIPULATOR_WT_arrow_3d", true);
struct CameraWidgetGroup *camgroup = MEM_callocN(sizeof(struct CameraWidgetGroup), __func__);
mgroup->customdata = camgroup;
negate_v3_v3(dir, ob->obmat[2]);
/* dof distance */
{
wmManipulator *mpr;
mpr = camgroup->dop_dist = WM_manipulator_new_ptr(wt_arrow, mgroup, NULL);
RNA_enum_set(mpr->ptr, "draw_style", ED_MANIPULATOR_ARROW_STYLE_CROSS);
WM_manipulator_set_flag(mpr, WM_MANIPULATOR_DRAW_HOVER, true);
UI_GetThemeColor3fv(TH_MANIPULATOR_A, mpr->color);
UI_GetThemeColor3fv(TH_MANIPULATOR_HI, mpr->color_hi);
}
/* focal length
* - logic/calculations are similar to BKE_camera_view_frame_ex, better keep in sync */
{
wmManipulator *mpr;
mpr = camgroup->focal_len = WM_manipulator_new_ptr(wt_arrow, mgroup, NULL);
RNA_enum_set(mpr->ptr, "draw_style", ED_MANIPULATOR_ARROW_STYLE_CONE);
RNA_enum_set(mpr->ptr, "draw_options", ED_MANIPULATOR_ARROW_STYLE_CONSTRAINED);
UI_GetThemeColor3fv(TH_MANIPULATOR_PRIMARY, mpr->color);
UI_GetThemeColor3fv(TH_MANIPULATOR_HI, mpr->color_hi);
cameragroup_property_setup(mpr, ob, ca, false);
mpr = camgroup->ortho_scale = WM_manipulator_new_ptr(wt_arrow, mgroup, NULL);
RNA_enum_set(mpr->ptr, "draw_style", ED_MANIPULATOR_ARROW_STYLE_CONE);
RNA_enum_set(mpr->ptr, "draw_options", ED_MANIPULATOR_ARROW_STYLE_CONSTRAINED);
UI_GetThemeColor3fv(TH_MANIPULATOR_PRIMARY, mpr->color);
UI_GetThemeColor3fv(TH_MANIPULATOR_HI, mpr->color_hi);
cameragroup_property_setup(mpr, ob, ca, true);
}
}
static void WIDGETGROUP_camera_refresh(const bContext *C, wmManipulatorGroup *mgroup)
{
if (!mgroup->customdata)
return;
struct CameraWidgetGroup *camgroup = mgroup->customdata;
Object *ob = CTX_data_active_object(C);
Camera *ca = ob->data;
PointerRNA camera_ptr;
float dir[3];
RNA_pointer_create(&ca->id, &RNA_Camera, ca, &camera_ptr);
negate_v3_v3(dir, ob->obmat[2]);
if (ca->flag & CAM_SHOWLIMITS) {
WM_manipulator_set_matrix_location(camgroup->dop_dist, ob->obmat[3]);
WM_manipulator_set_matrix_rotation_from_yz_axis(camgroup->dop_dist, ob->obmat[1], dir);
WM_manipulator_set_scale(camgroup->dop_dist, ca->drawsize);
WM_manipulator_set_flag(camgroup->dop_dist, WM_MANIPULATOR_HIDDEN, false);
/* need to set property here for undo. TODO would prefer to do this in _init */
WM_manipulator_target_property_def_rna(camgroup->dop_dist, "offset", &camera_ptr, "dof_distance", -1);
}
else {
WM_manipulator_set_flag(camgroup->dop_dist, WM_MANIPULATOR_HIDDEN, true);
}
/* TODO - make focal length/ortho scale widget optional */
if (true) {
const bool is_ortho = (ca->type == CAM_ORTHO);
const float scale[3] = {1.0f / len_v3(ob->obmat[0]), 1.0f / len_v3(ob->obmat[1]), 1.0f / len_v3(ob->obmat[2])};
const float scale_fac = ca->drawsize;
const float drawsize = is_ortho ?
(0.5f * ca->ortho_scale) :
(scale_fac / ((scale[0] + scale[1] + scale[2]) / 3.0f));
float offset[3];
float aspect[2];
wmManipulator *widget = is_ortho ? camgroup->ortho_scale : camgroup->focal_len;
WM_manipulator_set_flag(widget, WM_MANIPULATOR_HIDDEN, false);
WM_manipulator_set_flag(is_ortho ? camgroup->focal_len : camgroup->ortho_scale, WM_MANIPULATOR_HIDDEN, true);
/* account for lens shifting */
offset[0] = ((ob->size[0] > 0.0f) ? -2.0f : 2.0f) * ca->shiftx;
offset[1] = 2.0f * ca->shifty;
offset[2] = 0.0f;
/* get aspect */
const Scene *scene = CTX_data_scene(C);
const float aspx = (float)scene->r.xsch * scene->r.xasp;
const float aspy = (float)scene->r.ysch * scene->r.yasp;
const int sensor_fit = BKE_camera_sensor_fit(ca->sensor_fit, aspx, aspy);
aspect[0] = (sensor_fit == CAMERA_SENSOR_FIT_HOR) ? 1.0f : aspx / aspy;
aspect[1] = (sensor_fit == CAMERA_SENSOR_FIT_HOR) ? aspy / aspx : 1.0f;
WM_manipulator_set_matrix_location(widget, ob->obmat[3]);
WM_manipulator_set_matrix_rotation_from_yz_axis(widget, ob->obmat[1], dir);
RNA_float_set_array(widget->ptr, "aspect", aspect);
WM_manipulator_set_matrix_offset_location(widget, offset);
WM_manipulator_set_scale(widget, drawsize);
/* need to set property here for undo. TODO would prefer to do this in _init */
WM_manipulator_target_property_def_rna(camgroup->focal_len, "offset", &camera_ptr, "lens", -1);
WM_manipulator_target_property_def_rna(camgroup->ortho_scale, "offset", &camera_ptr, "ortho_scale", -1);
}
}
void VIEW3D_WGT_camera(wmManipulatorGroupType *wgt)
{
wgt->name = "Camera Widgets";
wgt->idname = "VIEW3D_WGT_camera";
wgt->flag = (WM_MANIPULATORGROUPTYPE_PERSISTENT |
WM_MANIPULATORGROUPTYPE_3D |
WM_MANIPULATORGROUPTYPE_SCALE |
WM_MANIPULATORGROUPTYPE_DEPTH_3D);
wgt->poll = WIDGETGROUP_camera_poll;
wgt->setup = WIDGETGROUP_camera_setup;
wgt->refresh = WIDGETGROUP_camera_refresh;
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name CameraView Manipulators
* \{ */
struct CameraViewWidgetGroup {
wmManipulator *border;
struct {
rctf *edit_border;
rctf view_border;
} state;
};
/* scale callbacks */
static void manipulator_render_border_prop_size_get(
const wmManipulator *UNUSED(mpr), wmManipulatorProperty *mpr_prop,
void *value_p)
{
float *value = value_p;
BLI_assert(mpr_prop->type->array_length == 2);
struct CameraViewWidgetGroup *viewgroup = mpr_prop->custom_func.user_data;
const rctf *border = viewgroup->state.edit_border;
value[0] = BLI_rctf_size_x(border);
value[1] = BLI_rctf_size_y(border);
}
static void manipulator_render_border_prop_size_set(
const wmManipulator *UNUSED(mpr), wmManipulatorProperty *mpr_prop,
const void *value_p)
{
const float *value = value_p;
struct CameraViewWidgetGroup *viewgroup = mpr_prop->custom_func.user_data;
rctf *border = viewgroup->state.edit_border;
BLI_assert(mpr_prop->type->array_length == 2);
BLI_rctf_resize(border, value[0], value[1]);
BLI_rctf_isect(&(rctf){.xmin = 0, .ymin = 0, .xmax = 1, .ymax = 1}, border, border);
}
/* offset callbacks */
static void manipulator_render_border_prop_offset_get(
const wmManipulator *UNUSED(mpr), wmManipulatorProperty *mpr_prop,
void *value_p)
{
float *value = value_p;
BLI_assert(mpr_prop->type->array_length == 2);
struct CameraViewWidgetGroup *viewgroup = mpr_prop->custom_func.user_data;
const rctf *border = viewgroup->state.edit_border;
value[0] = BLI_rctf_cent_x(border);
value[1] = BLI_rctf_cent_y(border);
}
static void manipulator_render_border_prop_offset_set(
const wmManipulator *UNUSED(mpr), wmManipulatorProperty *mpr_prop,
const void *value_p)
{
const float *value = value_p;
struct CameraViewWidgetGroup *viewgroup = mpr_prop->custom_func.user_data;
rctf *border = viewgroup->state.edit_border;
BLI_assert(mpr_prop->type->array_length == 2);
BLI_rctf_recenter(border, value[0], value[1]);
BLI_rctf_isect(&(rctf){.xmin = 0, .ymin = 0, .xmax = 1, .ymax = 1}, border, border);
}
static bool WIDGETGROUP_camera_view_poll(const bContext *C, wmManipulatorGroupType *UNUSED(wgt))
{
ARegion *ar = CTX_wm_region(C);
RegionView3D *rv3d = ar->regiondata;
Scene *scene = CTX_data_scene(C);
View3D *v3d = CTX_wm_view3d(C);
if (rv3d->persp == RV3D_CAMOB) {
if (scene->r.mode & R_BORDER) {
return true;
}
}
else if (v3d->flag2 & V3D_RENDER_BORDER) {
return true;
}
return false;
}
static void WIDGETGROUP_camera_view_setup(const bContext *UNUSED(C), wmManipulatorGroup *mgroup)
{
struct CameraViewWidgetGroup *viewgroup = MEM_mallocN(sizeof(struct CameraViewWidgetGroup), __func__);
viewgroup->border = WM_manipulator_new("MANIPULATOR_WT_cage_2d", mgroup, NULL);
RNA_enum_set(viewgroup->border->ptr, "transform",
ED_MANIPULATOR_RECT_TRANSFORM_FLAG_TRANSLATE | ED_MANIPULATOR_RECT_TRANSFORM_FLAG_SCALE);
mgroup->customdata = viewgroup;
}
static void WIDGETGROUP_camera_view_draw_prepare(const bContext *C, wmManipulatorGroup *mgroup)
{
struct CameraViewWidgetGroup *viewgroup = mgroup->customdata;
ARegion *ar = CTX_wm_region(C);
RegionView3D *rv3d = ar->regiondata;
if (rv3d->persp == RV3D_CAMOB) {
Scene *scene = CTX_data_scene(C);
View3D *v3d = CTX_wm_view3d(C);
ED_view3d_calc_camera_border(scene, ar, v3d, rv3d, &viewgroup->state.view_border, false);
}
else {
viewgroup->state.view_border = (rctf){.xmin = 0, .ymin = 0, .xmax = ar->winx, .ymax = ar->winy};
}
wmManipulator *mpr = viewgroup->border;
unit_m4(mpr->matrix_space);
mul_v3_fl(mpr->matrix_space[0], BLI_rctf_size_x(&viewgroup->state.view_border));
mul_v3_fl(mpr->matrix_space[1], BLI_rctf_size_y(&viewgroup->state.view_border));
mpr->matrix_space[3][0] = viewgroup->state.view_border.xmin;
mpr->matrix_space[3][1] = viewgroup->state.view_border.ymin;
}
static void WIDGETGROUP_camera_view_refresh(const bContext *C, wmManipulatorGroup *mgroup)
{
struct CameraViewWidgetGroup *viewgroup = mgroup->customdata;
View3D *v3d = CTX_wm_view3d(C);
ARegion *ar = CTX_wm_region(C);
RegionView3D *rv3d = ar->regiondata;
Scene *scene = CTX_data_scene(C);
{
wmManipulator *mpr = viewgroup->border;
WM_manipulator_set_flag(mpr, WM_MANIPULATOR_HIDDEN, false);
WM_manipulator_set_flag(mpr, WM_MANIPULATOR_DRAW_HOVER, true);
RNA_enum_set(viewgroup->border->ptr, "transform",
ED_MANIPULATOR_RECT_TRANSFORM_FLAG_TRANSLATE | ED_MANIPULATOR_RECT_TRANSFORM_FLAG_SCALE);
if (rv3d->persp == RV3D_CAMOB) {
viewgroup->state.edit_border = &scene->r.border;
}
else {
viewgroup->state.edit_border = &v3d->render_border;
}
WM_manipulator_target_property_def_func(
mpr, "offset",
&(const struct wmManipulatorPropertyFnParams) {
.value_get_fn = manipulator_render_border_prop_offset_get,
.value_set_fn = manipulator_render_border_prop_offset_set,
.range_get_fn = NULL,
.user_data = viewgroup,
});
WM_manipulator_target_property_def_func(
mpr, "scale",
&(const struct wmManipulatorPropertyFnParams) {
.value_get_fn = manipulator_render_border_prop_size_get,
.value_set_fn = manipulator_render_border_prop_size_set,
.range_get_fn = NULL,
.user_data = viewgroup,
});
}
}
void VIEW3D_WGT_camera_view(wmManipulatorGroupType *wgt)
{
wgt->name = "Camera View Widgets";
wgt->idname = "VIEW3D_WGT_camera_view";
wgt->flag = (WM_MANIPULATORGROUPTYPE_PERSISTENT |
WM_MANIPULATORGROUPTYPE_SCALE);
wgt->poll = WIDGETGROUP_camera_view_poll;
wgt->setup = WIDGETGROUP_camera_view_setup;
wgt->draw_prepare = WIDGETGROUP_camera_view_draw_prepare;
wgt->refresh = WIDGETGROUP_camera_view_refresh;
}
/** \} */
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