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Diffstat (limited to 'source/blender/editors/space_view3d/view3d_manipulator_empty.c')
| -rw-r--r-- | source/blender/editors/space_view3d/view3d_manipulator_empty.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/source/blender/editors/space_view3d/view3d_manipulator_empty.c b/source/blender/editors/space_view3d/view3d_manipulator_empty.c new file mode 100644 index 00000000000..146f15b0691 --- /dev/null +++ b/source/blender/editors/space_view3d/view3d_manipulator_empty.c @@ -0,0 +1,211 @@ +/* + * ***** 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_empty.c + * \ingroup spview3d + */ + + +#include "BLI_blenlib.h" +#include "BLI_math.h" +#include "BLI_utildefines.h" + +#include "BKE_context.h" +#include "BKE_object.h" +#include "BKE_image.h" + +#include "DNA_object_types.h" +#include "DNA_lamp_types.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 Empty Image Manipulators + * \{ */ + +struct EmptyImageWidgetGroup { + wmManipulator *manipulator; + struct { + Object *ob; + float dims[2]; + } state; +}; + +/* translate callbacks */ +static void manipulator_empty_image_prop_size_get( + const wmManipulator *UNUSED(mpr), wmManipulatorProperty *mpr_prop, + void *value_p) +{ + float *value = value_p; + struct EmptyImageWidgetGroup *imgroup = mpr_prop->custom_func.user_data; + const Object *ob = imgroup->state.ob; + value[0] = ob->empty_drawsize; + value[1] = ob->empty_drawsize; +} + +static void manipulator_empty_image_prop_size_set( + const wmManipulator *UNUSED(mpr), wmManipulatorProperty *mpr_prop, + const void *value_p) +{ + const float *value = value_p; + BLI_assert(mpr_prop->type->array_length == 2); + struct EmptyImageWidgetGroup *imgroup = mpr_prop->custom_func.user_data; + Object *ob = imgroup->state.ob; + ob->empty_drawsize = value[0]; +} + +/* translate callbacks */ +static void manipulator_empty_image_prop_offset_get( + const wmManipulator *mpr, wmManipulatorProperty *mpr_prop, + void *value_p) +{ + float *value = value_p; + BLI_assert(mpr_prop->type->array_length == 2); + const struct EmptyImageWidgetGroup *imgroup = mpr_prop->custom_func.user_data; + const Object *ob = imgroup->state.ob; + + float dims[2] = {0.0f, 0.0f}; + RNA_float_get_array(mpr->ptr, "dimensions", dims); + dims[0] *= ob->empty_drawsize; + dims[1] *= ob->empty_drawsize; + + value[0] = (ob->ima_ofs[0] * dims[0]) + (0.5f * dims[0]); + value[1] = (ob->ima_ofs[1] * dims[1]) + (0.5f * dims[1]); +} + +static void manipulator_empty_image_prop_offset_set( + const wmManipulator *mpr, wmManipulatorProperty *mpr_prop, + const void *value_p) +{ + const float *value = value_p; + BLI_assert(mpr_prop->type->array_length == 2); + struct EmptyImageWidgetGroup *imgroup = mpr_prop->custom_func.user_data; + Object *ob = imgroup->state.ob; + + float dims[2]; + RNA_float_get_array(mpr->ptr, "dimensions", dims); + dims[0] *= ob->empty_drawsize; + dims[1] *= ob->empty_drawsize; + + ob->ima_ofs[0] = (value[0] - (0.5f * dims[0])) / dims[0]; + ob->ima_ofs[1] = (value[1] - (0.5f * dims[1])) / dims[1]; +} + +static bool WIDGETGROUP_empty_image_poll(const bContext *C, wmManipulatorGroupType *UNUSED(wgt)) +{ + Object *ob = CTX_data_active_object(C); + + if (ob && ob->type == OB_EMPTY) { + return (ob->empty_drawtype == OB_EMPTY_IMAGE); + } + return false; +} + +static void WIDGETGROUP_empty_image_setup(const bContext *UNUSED(C), wmManipulatorGroup *mgroup) +{ + struct EmptyImageWidgetGroup *imgroup = MEM_mallocN(sizeof(struct EmptyImageWidgetGroup), __func__); + imgroup->manipulator = WM_manipulator_new("MANIPULATOR_WT_cage_2d", mgroup, NULL); + wmManipulator *mpr = imgroup->manipulator; + RNA_enum_set(mpr->ptr, "transform", + ED_MANIPULATOR_RECT_TRANSFORM_FLAG_SCALE); + + mgroup->customdata = imgroup; + + WM_manipulator_set_flag(mpr, WM_MANIPULATOR_DRAW_HOVER, true); + + UI_GetThemeColor3fv(TH_MANIPULATOR_PRIMARY, mpr->color); + UI_GetThemeColor3fv(TH_MANIPULATOR_HI, mpr->color_hi); +} + +static void WIDGETGROUP_empty_image_refresh(const bContext *C, wmManipulatorGroup *mgroup) +{ + struct EmptyImageWidgetGroup *imgroup = mgroup->customdata; + Object *ob = CTX_data_active_object(C); + wmManipulator *mpr = imgroup->manipulator; + + copy_m4_m4(mpr->matrix_basis, ob->obmat); + + RNA_enum_set(mpr->ptr, "transform", + ED_MANIPULATOR_RECT_TRANSFORM_FLAG_TRANSLATE | + ED_MANIPULATOR_RECT_TRANSFORM_FLAG_SCALE | + ED_MANIPULATOR_RECT_TRANSFORM_FLAG_SCALE_UNIFORM); + + imgroup->state.ob = ob; + + /* Use dimensions for aspect. */ + if (ob->data != NULL) { + ImageUser iuser = *ob->iuser; + int w, h; + BKE_image_get_size(ob->data, &iuser, &w, &h); + const float dims_max = max_ff(w, h); + imgroup->state.dims[0] = (float)w / dims_max; + imgroup->state.dims[1] = (float)h / dims_max; + } + else { + copy_v2_fl(imgroup->state.dims, 1.0f); + } + RNA_float_set_array(mpr->ptr, "dimensions", imgroup->state.dims); + + WM_manipulator_target_property_def_func( + mpr, "scale", + &(const struct wmManipulatorPropertyFnParams) { + .value_get_fn = manipulator_empty_image_prop_size_get, + .value_set_fn = manipulator_empty_image_prop_size_set, + .range_get_fn = NULL, + .user_data = imgroup, + }); + WM_manipulator_target_property_def_func( + mpr, "offset", + &(const struct wmManipulatorPropertyFnParams) { + .value_get_fn = manipulator_empty_image_prop_offset_get, + .value_set_fn = manipulator_empty_image_prop_offset_set, + .range_get_fn = NULL, + .user_data = imgroup, + }); +} + +void VIEW3D_WGT_empty_image(wmManipulatorGroupType *wgt) +{ + wgt->name = "Area Lamp Widgets"; + wgt->idname = "VIEW3D_WGT_empty_image"; + + wgt->flag |= (WM_MANIPULATORGROUPTYPE_PERSISTENT | + WM_MANIPULATORGROUPTYPE_3D | + WM_MANIPULATORGROUPTYPE_DEPTH_3D); + + wgt->poll = WIDGETGROUP_empty_image_poll; + wgt->setup = WIDGETGROUP_empty_image_setup; + wgt->refresh = WIDGETGROUP_empty_image_refresh; +} + +/** \} */ |