Cleanup: remove unused 2D arrow gizmo

It's simpler to support a single gizmo type for 2D/3D.

3 files changed, 2 insertions, 243 deletions

diff --git a/source/blender/editors/gizmo_library/CMakeLists.txt b/source/blender/editors/gizmo_library/CMakeLists.txt
index 4fbe901c1ca..68a204c04a7 100644
--- a/source/blender/editors/gizmo_library/CMakeLists.txt
+++ b/source/blender/editors/gizmo_library/CMakeLists.txt
@@ -45,7 +45,6 @@ set(SRC
   geometry/geom_arrow_gizmo.c
   geometry/geom_cube_gizmo.c
   geometry/geom_dial_gizmo.c
-  gizmo_types/arrow2d_gizmo.c
   gizmo_types/arrow3d_gizmo.c
   gizmo_types/blank3d_gizmo.c
   gizmo_types/button2d_gizmo.c
diff --git a/source/blender/editors/gizmo_library/gizmo_types/arrow2d_gizmo.c b/source/blender/editors/gizmo_library/gizmo_types/arrow2d_gizmo.c
deleted file mode 100644
index 1c8c46a2bad..00000000000
--- a/source/blender/editors/gizmo_library/gizmo_types/arrow2d_gizmo.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/*
- * 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.
- *
- * The Original Code is Copyright (C) 2016 Blender Foundation.
- * All rights reserved.
- */
-
-/** \file
- * \ingroup edgizmolib
- *
- * \name 2D Arrow Gizmo
- *
- * \brief Simple arrow gizmo which is dragged into a certain direction.
- */
-
-#include "BLI_math.h"
-
-#include "DNA_windowmanager_types.h"
-
-#include "BKE_context.h"
-
-#include "GPU_immediate.h"
-#include "GPU_matrix.h"
-#include "GPU_state.h"
-
-#include "MEM_guardedalloc.h"
-
-#include "RNA_access.h"
-#include "RNA_define.h"
-
-#include "WM_types.h"
-
-#include "ED_screen.h"
-#include "ED_gizmo_library.h"
-
-/* own includes */
-#include "WM_api.h"
-
-#include "../gizmo_library_intern.h"
-
-static void arrow2d_draw_geom(wmGizmo *gz, const float matrix[4][4], const float color[4])
-{
-  const int draw_style = RNA_enum_get(gz->ptr, "draw_style");
-  const float size = 0.11f;
-  const float size_breadth = size / 2.0f;
-  const float size_length = size * 1.7f;
-  /* Subtract the length so the arrow fits in the hotspot. */
-  const float arrow_length = RNA_float_get(gz->ptr, "length") - size_length;
-  const float arrow_angle = RNA_float_get(gz->ptr, "angle");
-
-  uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
-
-  GPU_matrix_push();
-  GPU_matrix_mul(matrix);
-  GPU_matrix_rotate_2d(RAD2DEGF(arrow_angle));
-
-  immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
-
-  immUniformColor4fv(color);
-
-  immBegin(GPU_PRIM_LINES, 2);
-  immVertex2f(pos, 0.0f, 0.0f);
-  immVertex2f(pos, 0.0f, arrow_length);
-  immEnd();
-
-  if (draw_style == ED_GIZMO_ARROW_STYLE_BOX) {
-    immBegin(GPU_PRIM_TRI_FAN, 4);
-    immVertex2f(pos, -size / 2, arrow_length);
-    immVertex2f(pos, size / 2, arrow_length);
-    immVertex2f(pos, size / 2, arrow_length + size);
-    immVertex2f(pos, -size / 2, arrow_length + size);
-    immEnd();
-  }
-  else {
-    immBegin(GPU_PRIM_TRIS, 3);
-    immVertex2f(pos, size_breadth, arrow_length);
-    immVertex2f(pos, -size_breadth, arrow_length);
-    immVertex2f(pos, 0.0f, arrow_length + size_length);
-    immEnd();
-  }
-
-  immUnbindProgram();
-
-  GPU_matrix_pop();
-}
-
-static void gizmo_arrow2d_draw(const bContext *UNUSED(C), wmGizmo *gz)
-{
-  float color[4];
-
-  float matrix_final[4][4];
-
-  gizmo_color_get(gz, gz->state & WM_GIZMO_STATE_HIGHLIGHT, color);
-
-  GPU_line_width(gz->line_width);
-
-  WM_gizmo_calc_matrix_final(gz, matrix_final);
-
-  GPU_blend(true);
-  arrow2d_draw_geom(gz, matrix_final, color);
-  GPU_blend(false);
-
-  if (gz->interaction_data) {
-    GizmoInteraction *inter = gz->interaction_data;
-
-    GPU_blend(true);
-    arrow2d_draw_geom(gz, inter->init_matrix_final, (const float[4]){0.5f, 0.5f, 0.5f, 0.5f});
-    GPU_blend(false);
-  }
-}
-
-static void gizmo_arrow2d_setup(wmGizmo *gz)
-{
-  gz->flag |= WM_GIZMO_DRAW_MODAL;
-}
-
-static int gizmo_arrow2d_invoke(bContext *UNUSED(C), wmGizmo *gz, const wmEvent *UNUSED(event))
-{
-  GizmoInteraction *inter = MEM_callocN(sizeof(GizmoInteraction), __func__);
-
-  copy_m4_m4(inter->init_matrix_basis, gz->matrix_basis);
-  WM_gizmo_calc_matrix_final(gz, inter->init_matrix_final);
-
-  gz->interaction_data = inter;
-
-  return OPERATOR_RUNNING_MODAL;
-}
-
-static int gizmo_arrow2d_test_select(bContext *UNUSED(C), wmGizmo *gz, const int mval[2])
-{
-  const float mval_fl[2] = {UNPACK2(mval)};
-  const float arrow_length = RNA_float_get(gz->ptr, "length");
-  const float arrow_angle = RNA_float_get(gz->ptr, "angle");
-  const float line_len = arrow_length * gz->scale_final;
-  float mval_local[2];
-
-  copy_v2_v2(mval_local, mval_fl);
-  sub_v2_v2(mval_local, gz->matrix_basis[3]);
-
-  float line[2][2];
-  line[0][0] = line[0][1] = line[1][0] = 0.0f;
-  line[1][1] = line_len;
-
-  /* rotate only if needed */
-  if (arrow_angle != 0.0f) {
-    float rot_point[2];
-    copy_v2_v2(rot_point, line[1]);
-    rotate_v2_v2fl(line[1], rot_point, arrow_angle);
-  }
-
-  /* arrow line intersection check */
-  float isect_1[2], isect_2[2];
-  const int isect = isect_line_sphere_v2(
-      line[0], line[1], mval_local, GIZMO_HOTSPOT + gz->line_width * 0.5f, isect_1, isect_2);
-
-  if (isect > 0) {
-    float line_ext[2][2]; /* extended line for segment check including hotspot */
-    copy_v2_v2(line_ext[0], line[0]);
-    line_ext[1][0] = line[1][0] + GIZMO_HOTSPOT * ((line[1][0] - line[0][0]) / line_len);
-    line_ext[1][1] = line[1][1] + GIZMO_HOTSPOT * ((line[1][1] - line[0][1]) / line_len);
-
-    const float lambda_1 = line_point_factor_v2(isect_1, line_ext[0], line_ext[1]);
-    if (isect == 1) {
-      if (IN_RANGE_INCL(lambda_1, 0.0f, 1.0f)) {
-        return 0;
-      }
-    }
-    else {
-      BLI_assert(isect == 2);
-      const float lambda_2 = line_point_factor_v2(isect_2, line_ext[0], line_ext[1]);
-      if (IN_RANGE_INCL(lambda_1, 0.0f, 1.0f) && IN_RANGE_INCL(lambda_2, 0.0f, 1.0f)) {
-        return 0;
-      }
-    }
-  }
-
-  return -1;
-}
-
-/* -------------------------------------------------------------------- */
-/** \name 2D Arrow Gizmo API
- *
- * \{ */
-
-static void GIZMO_GT_arrow_2d(wmGizmoType *gzt)
-{
-  /* identifiers */
-  gzt->idname = "GIZMO_GT_arrow_2d";
-
-  /* api callbacks */
-  gzt->draw = gizmo_arrow2d_draw;
-  gzt->setup = gizmo_arrow2d_setup;
-  gzt->invoke = gizmo_arrow2d_invoke;
-  gzt->test_select = gizmo_arrow2d_test_select;
-
-  gzt->struct_size = sizeof(wmGizmo);
-
-  /* rna */
-  static EnumPropertyItem rna_enum_draw_style_items[] = {
-      {ED_GIZMO_ARROW_STYLE_NORMAL, "NORMAL", 0, "Normal", ""},
-      {ED_GIZMO_ARROW_STYLE_BOX, "BOX", 0, "Box", ""},
-      {0, NULL, 0, NULL, NULL},
-  };
-  RNA_def_float(gzt->srna, "length", 1.0f, 0.0f, FLT_MAX, "Arrow Line Length", "", 0.0f, FLT_MAX);
-  RNA_def_float_rotation(gzt->srna,
-                         "angle",
-                         0,
-                         NULL,
-                         DEG2RADF(-360.0f),
-                         DEG2RADF(360.0f),
-                         "Roll",
-                         "",
-                         DEG2RADF(-360.0f),
-                         DEG2RADF(360.0f));
-  RNA_def_enum(gzt->srna,
-               "draw_style",
-               rna_enum_draw_style_items,
-               ED_GIZMO_ARROW_STYLE_NORMAL,
-               "Draw Style",
-               "");
-}
-
-void ED_gizmotypes_arrow_2d(void)
-{
-  WM_gizmotype_append(GIZMO_GT_arrow_2d);
-}
-
-/** \} */
diff --git a/source/blender/editors/gizmo_library/gizmo_types/arrow3d_gizmo.c b/source/blender/editors/gizmo_library/gizmo_types/arrow3d_gizmo.c
index c19613e4d8d..22d4a8f2676 100644
--- a/source/blender/editors/gizmo_library/gizmo_types/arrow3d_gizmo.c
+++ b/source/blender/editors/gizmo_library/gizmo_types/arrow3d_gizmo.c
@@ -22,14 +22,14 @@
  *
  * \name Arrow Gizmo
  *
- * 3D Gizmo
+ * 2D/3D Gizmo
  *
  * \brief Simple arrow gizmo which is dragged into a certain direction.
  * The arrow head can have varying shapes, e.g. cone, box, etc.
  *
  * - `matrix[0]` is derived from Y and Z.
  * - `matrix[1]` is 'up' for gizmo types that have an up.
- * - `matrix[2]` is the arrow direction (for all arrowes).
+ * - `matrix[2]` is the arrow direction (for all arrows).
  */
 
 #include "BLI_math.h"