diff options
Diffstat (limited to 'source/blender/editors/space_view3d/view3d_navigate_roll.c')
| -rw-r--r-- | source/blender/editors/space_view3d/view3d_navigate_roll.c | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/source/blender/editors/space_view3d/view3d_navigate_roll.c b/source/blender/editors/space_view3d/view3d_navigate_roll.c new file mode 100644 index 00000000000..c9bfdc4412a --- /dev/null +++ b/source/blender/editors/space_view3d/view3d_navigate_roll.c @@ -0,0 +1,292 @@ +/* + * 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. + */ + +/** \file + * \ingroup spview3d + */ + +#include "BLI_blenlib.h" +#include "BLI_dial_2d.h" +#include "BLI_math.h" + +#include "BKE_context.h" + +#include "WM_api.h" + +#include "RNA_access.h" +#include "RNA_define.h" + +#include "ED_screen.h" + +#include "view3d_intern.h" +#include "view3d_navigate.h" /* own include */ + +/* -------------------------------------------------------------------- */ +/** \name View Roll Operator + * \{ */ + +static void view_roll_angle( + ARegion *region, float quat[4], const float orig_quat[4], const float dvec[3], float angle) +{ + RegionView3D *rv3d = region->regiondata; + float quat_mul[4]; + + /* camera axis */ + axis_angle_normalized_to_quat(quat_mul, dvec, angle); + + mul_qt_qtqt(quat, orig_quat, quat_mul); + + /* avoid precision loss over time */ + normalize_qt(quat); + + rv3d->view = RV3D_VIEW_USER; +} + +static void viewroll_apply(ViewOpsData *vod, int x, int y) +{ + float angle = BLI_dial_angle(vod->init.dial, (const float[2]){x, y}); + + if (angle != 0.0f) { + view_roll_angle(vod->region, vod->rv3d->viewquat, vod->init.quat, vod->init.mousevec, angle); + } + + if (vod->use_dyn_ofs) { + view3d_orbit_apply_dyn_ofs( + vod->rv3d->ofs, vod->init.ofs, vod->init.quat, vod->rv3d->viewquat, vod->dyn_ofs); + } + + if (RV3D_LOCK_FLAGS(vod->rv3d) & RV3D_BOXVIEW) { + view3d_boxview_sync(vod->area, vod->region); + } + + ED_view3d_camera_lock_sync(vod->depsgraph, vod->v3d, vod->rv3d); + + ED_region_tag_redraw(vod->region); +} + +static int viewroll_modal(bContext *C, wmOperator *op, const wmEvent *event) +{ + ViewOpsData *vod = op->customdata; + short event_code = VIEW_PASS; + bool use_autokey = false; + int ret = OPERATOR_RUNNING_MODAL; + + /* execute the events */ + if (event->type == MOUSEMOVE) { + event_code = VIEW_APPLY; + } + else if (event->type == EVT_MODAL_MAP) { + switch (event->val) { + case VIEW_MODAL_CONFIRM: + event_code = VIEW_CONFIRM; + break; + case VIEWROT_MODAL_SWITCH_MOVE: + WM_operator_name_call(C, "VIEW3D_OT_move", WM_OP_INVOKE_DEFAULT, NULL); + event_code = VIEW_CONFIRM; + break; + case VIEWROT_MODAL_SWITCH_ROTATE: + WM_operator_name_call(C, "VIEW3D_OT_rotate", WM_OP_INVOKE_DEFAULT, NULL); + event_code = VIEW_CONFIRM; + break; + } + } + else if (ELEM(event->type, EVT_ESCKEY, RIGHTMOUSE)) { + /* Note this does not remove auto-keys on locked cameras. */ + copy_qt_qt(vod->rv3d->viewquat, vod->init.quat); + ED_view3d_camera_lock_sync(vod->depsgraph, vod->v3d, vod->rv3d); + viewops_data_free(C, op->customdata); + op->customdata = NULL; + return OPERATOR_CANCELLED; + } + else if (event->type == vod->init.event_type && event->val == KM_RELEASE) { + event_code = VIEW_CONFIRM; + } + + if (event_code == VIEW_APPLY) { + viewroll_apply(vod, event->xy[0], event->xy[1]); + if (ED_screen_animation_playing(CTX_wm_manager(C))) { + use_autokey = true; + } + } + else if (event_code == VIEW_CONFIRM) { + use_autokey = true; + ret = OPERATOR_FINISHED; + } + + if (use_autokey) { + ED_view3d_camera_lock_autokey(vod->v3d, vod->rv3d, C, true, false); + } + + if (ret & OPERATOR_FINISHED) { + viewops_data_free(C, op->customdata); + op->customdata = NULL; + } + + return ret; +} + +enum { + V3D_VIEW_STEPLEFT = 1, + V3D_VIEW_STEPRIGHT, +}; + +static const EnumPropertyItem prop_view_roll_items[] = { + {0, "ANGLE", 0, "Roll Angle", "Roll the view using an angle value"}, + {V3D_VIEW_STEPLEFT, "LEFT", 0, "Roll Left", "Roll the view around to the left"}, + {V3D_VIEW_STEPRIGHT, "RIGHT", 0, "Roll Right", "Roll the view around to the right"}, + {0, NULL, 0, NULL, NULL}, +}; + +static int viewroll_exec(bContext *C, wmOperator *op) +{ + View3D *v3d; + RegionView3D *rv3d; + ARegion *region; + + if (op->customdata) { + ViewOpsData *vod = op->customdata; + region = vod->region; + v3d = vod->v3d; + } + else { + ED_view3d_context_user_region(C, &v3d, ®ion); + } + + rv3d = region->regiondata; + if ((rv3d->persp != RV3D_CAMOB) || ED_view3d_camera_lock_check(v3d, rv3d)) { + + ED_view3d_smooth_view_force_finish(C, v3d, region); + + int type = RNA_enum_get(op->ptr, "type"); + float angle = (type == 0) ? RNA_float_get(op->ptr, "angle") : DEG2RADF(U.pad_rot_angle); + float mousevec[3]; + float quat_new[4]; + + const int smooth_viewtx = WM_operator_smooth_viewtx_get(op); + + if (type == V3D_VIEW_STEPLEFT) { + angle = -angle; + } + + normalize_v3_v3(mousevec, rv3d->viewinv[2]); + negate_v3(mousevec); + view_roll_angle(region, quat_new, rv3d->viewquat, mousevec, angle); + + const float *dyn_ofs_pt = NULL; + float dyn_ofs[3]; + if (U.uiflag & USER_ORBIT_SELECTION) { + if (view3d_orbit_calc_center(C, dyn_ofs)) { + negate_v3(dyn_ofs); + dyn_ofs_pt = dyn_ofs; + } + } + + ED_view3d_smooth_view(C, + v3d, + region, + smooth_viewtx, + &(const V3D_SmoothParams){ + .quat = quat_new, + .dyn_ofs = dyn_ofs_pt, + }); + + viewops_data_free(C, op->customdata); + op->customdata = NULL; + return OPERATOR_FINISHED; + } + + viewops_data_free(C, op->customdata); + op->customdata = NULL; + return OPERATOR_CANCELLED; +} + +static int viewroll_invoke(bContext *C, wmOperator *op, const wmEvent *event) +{ + ViewOpsData *vod; + + bool use_angle = RNA_enum_get(op->ptr, "type") != 0; + + if (use_angle || RNA_struct_property_is_set(op->ptr, "angle")) { + viewroll_exec(C, op); + } + else { + /* makes op->customdata */ + vod = op->customdata = viewops_data_create(C, event, viewops_flag_from_prefs()); + vod->init.dial = BLI_dial_init((const float[2]){BLI_rcti_cent_x(&vod->region->winrct), + BLI_rcti_cent_y(&vod->region->winrct)}, + FLT_EPSILON); + + ED_view3d_smooth_view_force_finish(C, vod->v3d, vod->region); + + /* overwrite the mouse vector with the view direction */ + normalize_v3_v3(vod->init.mousevec, vod->rv3d->viewinv[2]); + negate_v3(vod->init.mousevec); + + if (event->type == MOUSEROTATE) { + vod->init.event_xy[0] = vod->prev.event_xy[0] = event->xy[0]; + viewroll_apply(vod, event->prev_xy[0], event->prev_xy[1]); + + viewops_data_free(C, op->customdata); + op->customdata = NULL; + return OPERATOR_FINISHED; + } + + /* add temp handler */ + WM_event_add_modal_handler(C, op); + return OPERATOR_RUNNING_MODAL; + } + return OPERATOR_FINISHED; +} + +static void viewroll_cancel(bContext *C, wmOperator *op) +{ + viewops_data_free(C, op->customdata); + op->customdata = NULL; +} + +void VIEW3D_OT_view_roll(wmOperatorType *ot) +{ + PropertyRNA *prop; + + /* identifiers */ + ot->name = "View Roll"; + ot->description = "Roll the view"; + ot->idname = "VIEW3D_OT_view_roll"; + + /* api callbacks */ + ot->invoke = viewroll_invoke; + ot->exec = viewroll_exec; + ot->modal = viewroll_modal; + ot->poll = ED_operator_rv3d_user_region_poll; + ot->cancel = viewroll_cancel; + + /* flags */ + ot->flag = 0; + + /* properties */ + ot->prop = prop = RNA_def_float( + ot->srna, "angle", 0, -FLT_MAX, FLT_MAX, "Roll", "", -FLT_MAX, FLT_MAX); + RNA_def_property_flag(prop, PROP_SKIP_SAVE); + prop = RNA_def_enum(ot->srna, + "type", + prop_view_roll_items, + 0, + "Roll Angle Source", + "How roll angle is calculated"); + RNA_def_property_flag(prop, PROP_SKIP_SAVE); +} + +/** \} */ |