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Diffstat (limited to 'source/blender/editors/manipulator_library/manipulator_types/cage2d_manipulator.c')
| -rw-r--r-- | source/blender/editors/manipulator_library/manipulator_types/cage2d_manipulator.c | 1099 |
1 files changed, 1099 insertions, 0 deletions
diff --git a/source/blender/editors/manipulator_library/manipulator_types/cage2d_manipulator.c b/source/blender/editors/manipulator_library/manipulator_types/cage2d_manipulator.c new file mode 100644 index 00000000000..fe748f33d35 --- /dev/null +++ b/source/blender/editors/manipulator_library/manipulator_types/cage2d_manipulator.c @@ -0,0 +1,1099 @@ +/* + * ***** 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. + * + * The Original Code is Copyright (C) 2014 Blender Foundation. + * All rights reserved. + * + * Contributor(s): Blender Foundation + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file cage2d_manipulator.c + * \ingroup wm + * + * \name Cage Manipulator + * + * 2D Manipulator + * + * \brief Rectangular manipulator acting as a 'cage' around its content. + * Interacting scales or translates the manipulator. + */ + +#include "MEM_guardedalloc.h" + +#include "BLI_math.h" +#include "BLI_dial_2d.h" +#include "BLI_rect.h" + +#include "BKE_context.h" + +#include "BIF_gl.h" + +#include "GPU_matrix.h" +#include "GPU_shader.h" +#include "GPU_immediate.h" +#include "GPU_immediate_util.h" +#include "GPU_select.h" + +#include "RNA_access.h" +#include "RNA_define.h" + +#include "WM_api.h" +#include "WM_types.h" + +#include "ED_screen.h" +#include "ED_view3d.h" +#include "ED_manipulator_library.h" + +/* own includes */ +#include "../manipulator_library_intern.h" + +#define MANIPULATOR_RESIZER_SIZE 10.0f +#define MANIPULATOR_MARGIN_OFFSET_SCALE 1.5f + +static void manipulator_calc_rect_view_scale( + const wmManipulator *mpr, const float dims[2], float scale[2]) +{ + float matrix_final_no_offset[4][4]; + float asp[2] = {1.0f, 1.0f}; + if (dims[0] > dims[1]) { + asp[0] = dims[1] / dims[0]; + } + else { + asp[1] = dims[0] / dims[1]; + } + float x_axis[3], y_axis[3]; + WM_manipulator_calc_matrix_final_no_offset(mpr, matrix_final_no_offset); + mul_v3_mat3_m4v3(x_axis, matrix_final_no_offset, mpr->matrix_offset[0]); + mul_v3_mat3_m4v3(y_axis, matrix_final_no_offset, mpr->matrix_offset[1]); + + mul_v2_v2(x_axis, asp); + mul_v2_v2(y_axis, asp); + + scale[0] = 1.0f / len_v3(x_axis); + scale[1] = 1.0f / len_v3(y_axis); +} + +static void manipulator_calc_rect_view_margin( + const wmManipulator *mpr, const float dims[2], float margin[2]) +{ + float handle_size; + if (mpr->parent_mgroup->type->flag & WM_MANIPULATORGROUPTYPE_3D) { + handle_size = 0.15f; + } + else { + handle_size = MANIPULATOR_RESIZER_SIZE; + } + handle_size *= mpr->scale_final; + float scale_xy[2]; + manipulator_calc_rect_view_scale(mpr, dims, scale_xy); + margin[0] = ((handle_size * scale_xy[0])); + margin[1] = ((handle_size * scale_xy[1])); +} + +/* -------------------------------------------------------------------- */ + +static void manipulator_rect_pivot_from_scale_part(int part, float r_pt[2], bool r_constrain_axis[2]) +{ + bool x = true, y = true; + switch (part) { + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X: { ARRAY_SET_ITEMS(r_pt, 0.5, 0.0); x = false; break; } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X: { ARRAY_SET_ITEMS(r_pt, -0.5, 0.0); x = false; break; } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_Y: { ARRAY_SET_ITEMS(r_pt, 0.0, 0.5); y = false; break; } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_Y: { ARRAY_SET_ITEMS(r_pt, 0.0, -0.5); y = false; break; } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X_MIN_Y: { ARRAY_SET_ITEMS(r_pt, 0.5, 0.5); x = y = false; break; } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X_MAX_Y: { ARRAY_SET_ITEMS(r_pt, 0.5, -0.5); x = y = false; break; } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X_MIN_Y: { ARRAY_SET_ITEMS(r_pt, -0.5, 0.5); x = y = false; break; } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X_MAX_Y: { ARRAY_SET_ITEMS(r_pt, -0.5, -0.5); x = y = false; break; } + default: BLI_assert(0); + } + r_constrain_axis[0] = x; + r_constrain_axis[1] = y; +} + +/* -------------------------------------------------------------------- */ +/** \name Box Draw Style + * + * Useful for 3D views, see: #ED_MANIPULATOR_CAGE2D_STYLE_BOX + * \{ */ + +static void cage2d_draw_box_corners( + const rctf *r, const float margin[2], const float color[3]) +{ + uint pos = GWN_vertformat_attr_add(immVertexFormat(), "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + + immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR); + immUniformColor3fv(color); + + immBegin(GWN_PRIM_LINES, 16); + + immVertex2f(pos, r->xmin, r->ymin + margin[1]); + immVertex2f(pos, r->xmin, r->ymin); + immVertex2f(pos, r->xmin, r->ymin); + immVertex2f(pos, r->xmin + margin[0], r->ymin); + + immVertex2f(pos, r->xmax, r->ymin + margin[1]); + immVertex2f(pos, r->xmax, r->ymin); + immVertex2f(pos, r->xmax, r->ymin); + immVertex2f(pos, r->xmax - margin[0], r->ymin); + + immVertex2f(pos, r->xmax, r->ymax - margin[1]); + immVertex2f(pos, r->xmax, r->ymax); + immVertex2f(pos, r->xmax, r->ymax); + immVertex2f(pos, r->xmax - margin[0], r->ymax); + + immVertex2f(pos, r->xmin, r->ymax - margin[1]); + immVertex2f(pos, r->xmin, r->ymax); + immVertex2f(pos, r->xmin, r->ymax); + immVertex2f(pos, r->xmin + margin[0], r->ymax); + + immEnd(); + + immUnbindProgram(); +} + +static void cage2d_draw_box_interaction( + const float color[4], const int highlighted, + const float size[2], const float margin[2], + const float line_width, const bool is_solid, const int draw_options) +{ + /* 4 verts for translate, otherwise only 3 are used. */ + float verts[4][2]; + uint verts_len = 0; + Gwn_PrimType prim_type = GWN_PRIM_NONE; + + switch (highlighted) { + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X: + { + rctf r = { + .xmin = -size[0], .xmax = -size[0] + margin[0], + .ymin = -size[1] + margin[1], .ymax = size[1] - margin[1], + }; + ARRAY_SET_ITEMS(verts[0], r.xmin, r.ymin); + ARRAY_SET_ITEMS(verts[1], r.xmin, r.ymax); + verts_len = 2; + if (is_solid) { + ARRAY_SET_ITEMS(verts[2], r.xmax, r.ymax); + ARRAY_SET_ITEMS(verts[3], r.xmax, r.ymin); + verts_len += 2; + prim_type = GWN_PRIM_TRI_FAN; + } + else { + prim_type = GWN_PRIM_LINE_STRIP; + } + break; + } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X: + { + rctf r = { + .xmin = size[0] - margin[0], .xmax = size[0], + .ymin = -size[1] + margin[1], .ymax = size[1] - margin[1], + }; + ARRAY_SET_ITEMS(verts[0], r.xmax, r.ymin); + ARRAY_SET_ITEMS(verts[1], r.xmax, r.ymax); + verts_len = 2; + if (is_solid) { + ARRAY_SET_ITEMS(verts[2], r.xmin, r.ymax); + ARRAY_SET_ITEMS(verts[3], r.xmin, r.ymin); + verts_len += 2; + prim_type = GWN_PRIM_TRI_FAN; + } + else { + prim_type = GWN_PRIM_LINE_STRIP; + } + break; + } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_Y: + { + rctf r = { + .xmin = -size[0] + margin[0], .xmax = size[0] - margin[0], + .ymin = -size[1], .ymax = -size[1] + margin[1], + }; + ARRAY_SET_ITEMS(verts[0], r.xmin, r.ymin); + ARRAY_SET_ITEMS(verts[1], r.xmax, r.ymin); + verts_len = 2; + if (is_solid) { + ARRAY_SET_ITEMS(verts[2], r.xmax, r.ymax); + ARRAY_SET_ITEMS(verts[3], r.xmin, r.ymax); + verts_len += 2; + prim_type = GWN_PRIM_TRI_FAN; + } + else { + prim_type = GWN_PRIM_LINE_STRIP; + } + break; + } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_Y: + { + rctf r = { + .xmin = -size[0] + margin[0], .xmax = size[0] - margin[0], + .ymin = size[1] - margin[1], .ymax = size[1], + }; + ARRAY_SET_ITEMS(verts[0], r.xmin, r.ymax); + ARRAY_SET_ITEMS(verts[1], r.xmax, r.ymax); + verts_len = 2; + if (is_solid) { + ARRAY_SET_ITEMS(verts[2], r.xmax, r.ymin); + ARRAY_SET_ITEMS(verts[3], r.xmin, r.ymin); + verts_len += 2; + prim_type = GWN_PRIM_TRI_FAN; + } + else { + prim_type = GWN_PRIM_LINE_STRIP; + } + break; + } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X_MIN_Y: + { + rctf r = { + .xmin = -size[0], .xmax = -size[0] + margin[0], + .ymin = -size[1], .ymax = -size[1] + margin[1], + }; + ARRAY_SET_ITEMS(verts[0], r.xmax, r.ymin); + ARRAY_SET_ITEMS(verts[1], r.xmax, r.ymax); + ARRAY_SET_ITEMS(verts[2], r.xmin, r.ymax); + verts_len = 3; + if (is_solid) { + ARRAY_SET_ITEMS(verts[3], r.xmin, r.ymin); + verts_len += 1; + prim_type = GWN_PRIM_TRI_FAN; + } + else { + prim_type = GWN_PRIM_LINE_STRIP; + } + break; + } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X_MAX_Y: + { + rctf r = { + .xmin = -size[0], .xmax = -size[0] + margin[0], + .ymin = size[1] - margin[1], .ymax = size[1], + }; + ARRAY_SET_ITEMS(verts[0], r.xmax, r.ymax); + ARRAY_SET_ITEMS(verts[1], r.xmax, r.ymin); + ARRAY_SET_ITEMS(verts[2], r.xmin, r.ymin); + verts_len = 3; + if (is_solid) { + ARRAY_SET_ITEMS(verts[3], r.xmin, r.ymax); + verts_len += 1; + prim_type = GWN_PRIM_TRI_FAN; + } + else { + prim_type = GWN_PRIM_LINE_STRIP; + } + break; + } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X_MIN_Y: + { + rctf r = { + .xmin = size[0] - margin[0], .xmax = size[0], + .ymin = -size[1], .ymax = -size[1] + margin[1], + }; + ARRAY_SET_ITEMS(verts[0], r.xmin, r.ymin); + ARRAY_SET_ITEMS(verts[1], r.xmin, r.ymax); + ARRAY_SET_ITEMS(verts[2], r.xmax, r.ymax); + verts_len = 3; + if (is_solid) { + ARRAY_SET_ITEMS(verts[3], r.xmax, r.ymin); + verts_len += 1; + prim_type = GWN_PRIM_TRI_FAN; + } + else { + prim_type = GWN_PRIM_LINE_STRIP; + } + break; + } + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X_MAX_Y: + { + rctf r = { + .xmin = size[0] - margin[0], .xmax = size[0], + .ymin = size[1] - margin[1], .ymax = size[1], + }; + ARRAY_SET_ITEMS(verts[0], r.xmin, r.ymax); + ARRAY_SET_ITEMS(verts[1], r.xmin, r.ymin); + ARRAY_SET_ITEMS(verts[2], r.xmax, r.ymin); + verts_len = 3; + if (is_solid) { + ARRAY_SET_ITEMS(verts[3], r.xmax, r.ymax); + verts_len += 1; + prim_type = GWN_PRIM_TRI_FAN; + } + else { + prim_type = GWN_PRIM_LINE_STRIP; + } + break; + } + case ED_MANIPULATOR_CAGE2D_PART_ROTATE: + { + const float rotate_pt[2] = {0.0f, size[1] + margin[1]}; + const rctf r_rotate = { + .xmin = rotate_pt[0] - margin[0] / 2.0f, + .xmax = rotate_pt[0] + margin[0] / 2.0f, + .ymin = rotate_pt[1] - margin[1] / 2.0f, + .ymax = rotate_pt[1] + margin[1] / 2.0f, + }; + + ARRAY_SET_ITEMS(verts[0], r_rotate.xmin, r_rotate.ymin); + ARRAY_SET_ITEMS(verts[1], r_rotate.xmin, r_rotate.ymax); + ARRAY_SET_ITEMS(verts[2], r_rotate.xmax, r_rotate.ymax); + ARRAY_SET_ITEMS(verts[3], r_rotate.xmax, r_rotate.ymin); + verts_len = 4; + if (is_solid) { + prim_type = GWN_PRIM_TRI_FAN; + } + else { + prim_type = GWN_PRIM_LINE_STRIP; + } + break; + } + + case ED_MANIPULATOR_CAGE2D_PART_TRANSLATE: + if (draw_options & ED_MANIPULATOR_CAGE2D_DRAW_FLAG_XFORM_CENTER_HANDLE) { + ARRAY_SET_ITEMS(verts[0], -margin[0] / 2, -margin[1] / 2); + ARRAY_SET_ITEMS(verts[1], margin[0] / 2, margin[1] / 2); + ARRAY_SET_ITEMS(verts[2], -margin[0] / 2, margin[1] / 2); + ARRAY_SET_ITEMS(verts[3], margin[0] / 2, -margin[1] / 2); + verts_len = 4; + if (is_solid) { + prim_type = GWN_PRIM_TRI_FAN; + } + else { + prim_type = GWN_PRIM_LINES; + } + } + else { + /* Only used for 3D view selection, never displayed to the user. */ + ARRAY_SET_ITEMS(verts[0], -size[0], -size[1]); + ARRAY_SET_ITEMS(verts[1], -size[0], size[1]); + ARRAY_SET_ITEMS(verts[2], size[0], size[1]); + ARRAY_SET_ITEMS(verts[3], size[0], -size[1]); + verts_len = 4; + if (is_solid) { + prim_type = GWN_PRIM_TRI_FAN; + } + else { + /* unreachable */ + BLI_assert(0); + prim_type = GWN_PRIM_LINE_STRIP; + } + } + break; + default: + return; + } + + BLI_assert(prim_type != GWN_PRIM_NONE); + + Gwn_VertFormat *format = immVertexFormat(); + struct { + uint pos, col; + } attr_id = { + .pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT), + .col = GWN_vertformat_attr_add(format, "color", GWN_COMP_F32, 3, GWN_FETCH_FLOAT), + }; + immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR); + + { + if (is_solid) { + BLI_assert(ELEM(prim_type, GWN_PRIM_TRI_FAN)); + immBegin(prim_type, verts_len); + immAttrib3f(attr_id.col, 0.0f, 0.0f, 0.0f); + for (uint i = 0; i < verts_len; i++) { + immVertex2fv(attr_id.pos, verts[i]); + } + immEnd(); + } + else { + BLI_assert(ELEM(prim_type, GWN_PRIM_LINE_STRIP, GWN_PRIM_LINES)); + glLineWidth(line_width + 3.0f); + + immBegin(prim_type, verts_len); + immAttrib3f(attr_id.col, 0.0f, 0.0f, 0.0f); + for (uint i = 0; i < verts_len; i++) { + immVertex2fv(attr_id.pos, verts[i]); + } + immEnd(); + + glLineWidth(line_width); + + immBegin(prim_type, verts_len); + immAttrib3fv(attr_id.col, color); + for (uint i = 0; i < verts_len; i++) { + immVertex2fv(attr_id.pos, verts[i]); + } + immEnd(); + } + } + + immUnbindProgram(); +} + +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Circle Draw Style + * + * Useful for 2D views, see: #ED_MANIPULATOR_CAGE2D_STYLE_CIRCLE + * \{ */ + +static void imm_draw_point_aspect_2d( + uint pos, float x, float y, float rad_x, float rad_y, bool solid) +{ + immBegin(solid ? GWN_PRIM_TRI_FAN : GWN_PRIM_LINE_LOOP, 4); + immVertex2f(pos, x - rad_x, y - rad_y); + immVertex2f(pos, x - rad_x, y + rad_y); + immVertex2f(pos, x + rad_x, y + rad_y); + immVertex2f(pos, x + rad_x, y - rad_y); + immEnd(); +} + +static void cage2d_draw_circle_wire( + const rctf *r, const float margin[2], const float color[3], + const int transform_flag, const int draw_options) +{ + uint pos = GWN_vertformat_attr_add(immVertexFormat(), "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + + immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR); + immUniformColor3fv(color); + + immBegin(GWN_PRIM_LINE_LOOP, 4); + immVertex2f(pos, r->xmin, r->ymin); + immVertex2f(pos, r->xmax, r->ymin); + immVertex2f(pos, r->xmax, r->ymax); + immVertex2f(pos, r->xmin, r->ymax); + immEnd(); + + if (transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_ROTATE) { + immBegin(GWN_PRIM_LINE_LOOP, 2); + immVertex2f(pos, BLI_rctf_cent_x(r), r->ymax); + immVertex2f(pos, BLI_rctf_cent_x(r), r->ymax + margin[1]); + immEnd(); + } + + if (transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_TRANSLATE) { + if (draw_options & ED_MANIPULATOR_CAGE2D_DRAW_FLAG_XFORM_CENTER_HANDLE) { + const float rad[2] = {margin[0] / 2, margin[1] / 2}; + const float center[2] = {BLI_rctf_cent_x(r), BLI_rctf_cent_y(r)}; + + immBegin(GWN_PRIM_LINES, 4); + immVertex2f(pos, center[0] - rad[0], center[1] - rad[1]); + immVertex2f(pos, center[0] + rad[0], center[1] + rad[1]); + immVertex2f(pos, center[0] + rad[0], center[1] - rad[1]); + immVertex2f(pos, center[0] - rad[0], center[1] + rad[1]); + immEnd(); + } + } + + immUnbindProgram(); +} + +static void cage2d_draw_circle_handles( + const rctf *r, const float margin[2], const float color[3], + const int transform_flag, + bool solid) +{ + uint pos = GWN_vertformat_attr_add(immVertexFormat(), "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + void (*circle_fn)(uint, float, float, float, float, int) = + (solid) ? imm_draw_circle_fill_aspect_2d : imm_draw_circle_wire_aspect_2d; + const int resolu = 12; + const float rad[2] = {margin[0] / 3, margin[1] / 3}; + + immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR); + immUniformColor3fv(color); + + /* should really divide by two, but looks too bulky. */ + { + imm_draw_point_aspect_2d(pos, r->xmin, r->ymin, rad[0], rad[1], solid); + imm_draw_point_aspect_2d(pos, r->xmax, r->ymin, rad[0], rad[1], solid); + imm_draw_point_aspect_2d(pos, r->xmax, r->ymax, rad[0], rad[1], solid); + imm_draw_point_aspect_2d(pos, r->xmin, r->ymax, rad[0], rad[1], solid); + } + + if (transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_ROTATE) { + const float handle[2] = {BLI_rctf_cent_x(r), r->ymax + (margin[1] * MANIPULATOR_MARGIN_OFFSET_SCALE)}; + circle_fn(pos, handle[0], handle[1], rad[0], rad[1], resolu); + } + + immUnbindProgram(); +} + +/** \} */ + +static void manipulator_cage2d_draw_intern( + wmManipulator *mpr, const bool select, const bool highlight, const int select_id) +{ + // const bool use_clamp = (mpr->parent_mgroup->type->flag & WM_MANIPULATORGROUPTYPE_3D) == 0; + float dims[2]; + RNA_float_get_array(mpr->ptr, "dimensions", dims); + float matrix_final[4][4]; + + const int transform_flag = RNA_enum_get(mpr->ptr, "transform"); + const int draw_style = RNA_enum_get(mpr->ptr, "draw_style"); + const int draw_options = RNA_enum_get(mpr->ptr, "draw_options"); + + const float size_real[2] = {dims[0] / 2.0f, dims[1] / 2.0f}; + + WM_manipulator_calc_matrix_final(mpr, matrix_final); + + gpuPushMatrix(); + gpuMultMatrix(matrix_final); + + float margin[2]; + manipulator_calc_rect_view_margin(mpr, dims, margin); + + /* Handy for quick testing draw (if it's outside bounds). */ + if (false) { + glEnable(GL_BLEND); + uint pos = GWN_vertformat_attr_add(immVertexFormat(), "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR); + immUniformColor4fv((const float[4]){1, 1, 1, 0.5f}); + float s = 0.5f; + immRectf(pos, -s, -s, s, s); + immUnbindProgram(); + glDisable(GL_BLEND); + } + + if (select) { + /* expand for hotspot */ + const float size[2] = {size_real[0] + margin[0] / 2, size_real[1] + margin[1] / 2}; + + if (transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_SCALE) { + int scale_parts[] = { + ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X, + ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X, + ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_Y, + ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_Y, + + ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X_MIN_Y, + ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X_MAX_Y, + ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X_MIN_Y, + ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X_MAX_Y, + }; + for (int i = 0; i < ARRAY_SIZE(scale_parts); i++) { + GPU_select_load_id(select_id | scale_parts[i]); + cage2d_draw_box_interaction( + mpr->color, scale_parts[i], size, margin, mpr->line_width, true, draw_options); + } + } + if (transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_TRANSLATE) { + const int transform_part = ED_MANIPULATOR_CAGE2D_PART_TRANSLATE; + GPU_select_load_id(select_id | transform_part); + cage2d_draw_box_interaction( + mpr->color, transform_part, size, margin, mpr->line_width, true, draw_options); + } + if (transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_ROTATE) { + cage2d_draw_box_interaction( + mpr->color, ED_MANIPULATOR_CAGE2D_PART_ROTATE, size_real, margin, mpr->line_width, true, draw_options); + } + } + else { + const rctf r = { + .xmin = -size_real[0], + .ymin = -size_real[1], + .xmax = size_real[0], + .ymax = size_real[1], + }; + if (draw_style == ED_MANIPULATOR_CAGE2D_STYLE_BOX) { + /* corner manipulators */ + glLineWidth(mpr->line_width + 3.0f); + cage2d_draw_box_corners(&r, margin, (const float[3]){0, 0, 0}); + + /* corner manipulators */ + float color[4]; + manipulator_color_get(mpr, highlight, color); + glLineWidth(mpr->line_width); + cage2d_draw_box_corners(&r, margin, color); + + bool show = false; + if (mpr->highlight_part == ED_MANIPULATOR_CAGE2D_PART_TRANSLATE) { + /* Only show if we're drawing the center handle + * otherwise the entire rectangle is the hotspot. */ + if (draw_options & ED_MANIPULATOR_CAGE2D_DRAW_FLAG_XFORM_CENTER_HANDLE) { + show = true; + } + } + else { + show = true; + } + + if (show) { + cage2d_draw_box_interaction( + mpr->color, mpr->highlight_part, size_real, margin, mpr->line_width, false, draw_options); + } + + if (transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_ROTATE) { + cage2d_draw_box_interaction( + mpr->color, ED_MANIPULATOR_CAGE2D_PART_ROTATE, size_real, margin, mpr->line_width, false, draw_options); + } + } + else if (draw_style == ED_MANIPULATOR_CAGE2D_STYLE_CIRCLE) { + float color[4]; + manipulator_color_get(mpr, highlight, color); + + glEnable(GL_LINE_SMOOTH); + glEnable(GL_BLEND); + + glLineWidth(mpr->line_width + 3.0f); + cage2d_draw_circle_wire(&r, margin, (const float[3]){0, 0, 0}, transform_flag, draw_options); + glLineWidth(mpr->line_width); + cage2d_draw_circle_wire(&r, margin, color, transform_flag, draw_options); + + + /* corner manipulators */ + cage2d_draw_circle_handles(&r, margin, color, transform_flag, true); + cage2d_draw_circle_handles(&r, margin, (const float[3]){0, 0, 0}, transform_flag, false); + + glDisable(GL_BLEND); + glDisable(GL_LINE_SMOOTH); + } + else { + BLI_assert(0); + } + } + + glLineWidth(1.0); + gpuPopMatrix(); +} + +/** + * For when we want to draw 2d cage in 3d views. + */ +static void manipulator_cage2d_draw_select(const bContext *UNUSED(C), wmManipulator *mpr, int select_id) +{ + manipulator_cage2d_draw_intern(mpr, true, false, select_id); +} + +static void manipulator_cage2d_draw(const bContext *UNUSED(C), wmManipulator *mpr) +{ + const bool is_highlight = (mpr->state & WM_MANIPULATOR_STATE_HIGHLIGHT) != 0; + manipulator_cage2d_draw_intern(mpr, false, is_highlight, -1); +} + +static int manipulator_cage2d_get_cursor(wmManipulator *mpr) +{ + int highlight_part = mpr->highlight_part; + + if (mpr->parent_mgroup->type->flag & WM_MANIPULATORGROUPTYPE_3D) { + return BC_NSEW_SCROLLCURSOR; + } + + switch (highlight_part) { + case ED_MANIPULATOR_CAGE2D_PART_TRANSLATE: + return BC_NSEW_SCROLLCURSOR; + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X: + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X: + return CURSOR_X_MOVE; + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_Y: + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_Y: + return CURSOR_Y_MOVE; + + /* TODO diagonal cursor */ + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X_MIN_Y: + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X_MIN_Y: + return BC_NSEW_SCROLLCURSOR; + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X_MAX_Y: + case ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X_MAX_Y: + return BC_NSEW_SCROLLCURSOR; + case ED_MANIPULATOR_CAGE2D_PART_ROTATE: + return BC_CROSSCURSOR; + default: + return CURSOR_STD; + } +} + +static int manipulator_cage2d_test_select( + bContext *C, wmManipulator *mpr, const wmEvent *event) +{ + float point_local[2]; + float dims[2]; + RNA_float_get_array(mpr->ptr, "dimensions", dims); + const float size_real[2] = {dims[0] / 2.0f, dims[1] / 2.0f}; + + if (manipulator_window_project_2d( + C, mpr, (const float[2]){UNPACK2(event->mval)}, 2, true, point_local) == false) + { + return -1; + } + + float margin[2]; + manipulator_calc_rect_view_margin(mpr, dims, margin); + /* expand for hotspot */ + const float size[2] = {size_real[0] + margin[0] / 2, size_real[1] + margin[1] / 2}; + + const int transform_flag = RNA_enum_get(mpr->ptr, "transform"); + const int draw_options = RNA_enum_get(mpr->ptr, "draw_options"); + + if (transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_TRANSLATE) { + rctf r; + if (draw_options & ED_MANIPULATOR_CAGE2D_DRAW_FLAG_XFORM_CENTER_HANDLE) { + r.xmin = -margin[0] / 2; + r.ymin = -margin[1] / 2; + r.xmax = margin[0] / 2; + r.ymax = margin[1] / 2; + } + else { + r.xmin = -size[0] + margin[0]; + r.ymin = -size[1] + margin[1]; + r.xmax = size[0] - margin[0]; + r.ymax = size[1] - margin[1]; + }; + bool isect = BLI_rctf_isect_pt_v(&r, point_local); + if (isect) { + return ED_MANIPULATOR_CAGE2D_PART_TRANSLATE; + } + } + + /* if manipulator does not have a scale intersection, don't do it */ + if (transform_flag & (ED_MANIPULATOR_CAGE2D_XFORM_FLAG_SCALE | ED_MANIPULATOR_CAGE2D_XFORM_FLAG_SCALE_UNIFORM)) { + const rctf r_xmin = {.xmin = -size[0], .ymin = -size[1], .xmax = -size[0] + margin[0], .ymax = size[1]}; + const rctf r_xmax = {.xmin = size[0] - margin[0], .ymin = -size[1], .xmax = size[0], .ymax = size[1]}; + const rctf r_ymin = {.xmin = -size[0], .ymin = -size[1], .xmax = size[0], .ymax = -size[1] + margin[1]}; + const rctf r_ymax = {.xmin = -size[0], .ymin = size[1] - margin[1], .xmax = size[0], .ymax = size[1]}; + + if (BLI_rctf_isect_pt_v(&r_xmin, point_local)) { + if (BLI_rctf_isect_pt_v(&r_ymin, point_local)) { + return ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X_MIN_Y; + } + if (BLI_rctf_isect_pt_v(&r_ymax, point_local)) { + return ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X_MAX_Y; + } + return ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_X; + } + if (BLI_rctf_isect_pt_v(&r_xmax, point_local)) { + if (BLI_rctf_isect_pt_v(&r_ymin, point_local)) { + return ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X_MIN_Y; + } + if (BLI_rctf_isect_pt_v(&r_ymax, point_local)) { + return ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X_MAX_Y; + } + return ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_X; + } + if (BLI_rctf_isect_pt_v(&r_ymin, point_local)) { + return ED_MANIPULATOR_CAGE2D_PART_SCALE_MIN_Y; + } + if (BLI_rctf_isect_pt_v(&r_ymax, point_local)) { + return ED_MANIPULATOR_CAGE2D_PART_SCALE_MAX_Y; + } + } + + if (transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_ROTATE) { + /* Rotate: + * (*) <-- hot spot is here! + * +---+ + * | | + * +---+ */ + const float r_rotate_pt[2] = {0.0f, size_real[1] + (margin[1] * MANIPULATOR_MARGIN_OFFSET_SCALE)}; + const rctf r_rotate = { + .xmin = r_rotate_pt[0] - margin[0] / 2.0f, + .xmax = r_rotate_pt[0] + margin[0] / 2.0f, + .ymin = r_rotate_pt[1] - margin[1] / 2.0f, + .ymax = r_rotate_pt[1] + margin[1] / 2.0f, + }; + + if (BLI_rctf_isect_pt_v(&r_rotate, point_local)) { + return ED_MANIPULATOR_CAGE2D_PART_ROTATE; + } + } + + return -1; +} + +typedef struct RectTransformInteraction { + float orig_mouse[2]; + float orig_matrix_offset[4][4]; + float orig_matrix_final_no_offset[4][4]; + Dial *dial; +} RectTransformInteraction; + +static void manipulator_cage2d_setup(wmManipulator *mpr) +{ + mpr->flag |= WM_MANIPULATOR_DRAW_MODAL | WM_MANIPULATOR_DRAW_NO_SCALE; +} + +static int manipulator_cage2d_invoke( + bContext *C, wmManipulator *mpr, const wmEvent *event) +{ + RectTransformInteraction *data = MEM_callocN(sizeof(RectTransformInteraction), "cage_interaction"); + + copy_m4_m4(data->orig_matrix_offset, mpr->matrix_offset); + WM_manipulator_calc_matrix_final_no_offset(mpr, data->orig_matrix_final_no_offset); + + if (manipulator_window_project_2d( + C, mpr, (const float[2]){UNPACK2(event->mval)}, 2, false, data->orig_mouse) == 0) + { + zero_v2(data->orig_mouse); + } + + mpr->interaction_data = data; + + return OPERATOR_RUNNING_MODAL; +} + +static int manipulator_cage2d_modal( + bContext *C, wmManipulator *mpr, const wmEvent *event, + eWM_ManipulatorTweak UNUSED(tweak_flag)) +{ + /* For transform logic to be managable we operate in -0.5..0.5 2D space, + * no matter the size of the rectangle, mouse coorts are scaled to unit space. + * The mouse coords have been projected into the matrix so we don't need to worry about axis alignment. + * + * - The cursor offset are multiplied by 'dims'. + * - Matrix translation is also multiplied by 'dims'. + */ + RectTransformInteraction *data = mpr->interaction_data; + float point_local[2]; + + float dims[2]; + RNA_float_get_array(mpr->ptr, "dimensions", dims); + + { + float matrix_back[4][4]; + copy_m4_m4(matrix_back, mpr->matrix_offset); + copy_m4_m4(mpr->matrix_offset, data->orig_matrix_offset); + + bool ok = manipulator_window_project_2d( + C, mpr, (const float[2]){UNPACK2(event->mval)}, 2, false, point_local); + copy_m4_m4(mpr->matrix_offset, matrix_back); + if (!ok) { + return OPERATOR_RUNNING_MODAL; + } + } + + const int transform_flag = RNA_enum_get(mpr->ptr, "transform"); + wmManipulatorProperty *mpr_prop; + + mpr_prop = WM_manipulator_target_property_find(mpr, "matrix"); + if (mpr_prop->type != NULL) { + WM_manipulator_target_property_value_get_array(mpr, mpr_prop, &mpr->matrix_offset[0][0]); + } + + if (mpr->highlight_part == ED_MANIPULATOR_CAGE2D_PART_TRANSLATE) { + /* do this to prevent clamping from changing size */ + copy_m4_m4(mpr->matrix_offset, data->orig_matrix_offset); + mpr->matrix_offset[3][0] = data->orig_matrix_offset[3][0] + (point_local[0] - data->orig_mouse[0]); + mpr->matrix_offset[3][1] = data->orig_matrix_offset[3][1] + (point_local[1] - data->orig_mouse[1]); + } + else if (mpr->highlight_part == ED_MANIPULATOR_CAGE2D_PART_ROTATE) { + +#define MUL_V2_V3_M4_FINAL(test_co, mouse_co) \ + mul_v3_m4v3(test_co, data->orig_matrix_final_no_offset, ((const float[3]){UNPACK2(mouse_co), 0.0})) + + float test_co[3]; + + if (data->dial == NULL) { + MUL_V2_V3_M4_FINAL(test_co, data->orig_matrix_offset[3]); + + data->dial = BLI_dial_initialize(test_co, FLT_EPSILON); + + MUL_V2_V3_M4_FINAL(test_co, data->orig_mouse); + BLI_dial_angle(data->dial, test_co); + } + + /* rotate */ + MUL_V2_V3_M4_FINAL(test_co, point_local); + const float angle = BLI_dial_angle(data->dial, test_co); + + float matrix_space_inv[4][4]; + float matrix_rotate[4][4]; + float pivot[3]; + + copy_v3_v3(pivot, data->orig_matrix_offset[3]); + + invert_m4_m4(matrix_space_inv, mpr->matrix_space); + + unit_m4(matrix_rotate); + mul_m4_m4m4(matrix_rotate, matrix_rotate, matrix_space_inv); + rotate_m4(matrix_rotate, 'Z', -angle); + mul_m4_m4m4(matrix_rotate, matrix_rotate, mpr->matrix_space); + + zero_v3(matrix_rotate[3]); + transform_pivot_set_m4(matrix_rotate, pivot); + + mul_m4_m4m4(mpr->matrix_offset, matrix_rotate, data->orig_matrix_offset); + +#undef MUL_V2_V3_M4_FINAL + } + else { + /* scale */ + copy_m4_m4(mpr->matrix_offset, data->orig_matrix_offset); + float pivot[2]; + bool constrain_axis[2] = {false}; + + if (transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_TRANSLATE) { + manipulator_rect_pivot_from_scale_part(mpr->highlight_part, pivot, constrain_axis); + } + else { + zero_v2(pivot); + } + + /* Cursor deltas scaled to (-0.5..0.5). */ + float delta_orig[2], delta_curr[2]; + for (int i = 0; i < 2; i++) { + delta_orig[i] = ((data->orig_mouse[i] - data->orig_matrix_offset[3][i]) / dims[i]) - pivot[i]; + delta_curr[i] = ((point_local[i] - data->orig_matrix_offset[3][i]) / dims[i]) - pivot[i]; + } + + float scale[2] = {1.0f, 1.0f}; + for (int i = 0; i < 2; i++) { + if (constrain_axis[i] == false) { + if (delta_orig[i] < 0.0f) { + delta_orig[i] *= -1.0f; + delta_curr[i] *= -1.0f; + } + const int sign = signum_i(scale[i]); + + scale[i] = 1.0f + ((delta_curr[i] - delta_orig[i]) / len_v3(data->orig_matrix_offset[i])); + + if ((transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_SCALE_SIGNED) == 0) { + if (sign != signum_i(scale[i])) { + scale[i] = 0.0f; + } + } + } + } + + if (transform_flag & ED_MANIPULATOR_CAGE2D_XFORM_FLAG_SCALE_UNIFORM) { + if (constrain_axis[0] == false && constrain_axis[1] == false) { + scale[1] = scale[0] = (scale[1] + scale[0]) / 2.0f; + } + else if (constrain_axis[0] == false) { + scale[1] = scale[0]; + } + else if (constrain_axis[1] == false) { + scale[0] = scale[1]; + } + else { + BLI_assert(0); + } + } + + /* scale around pivot */ + float matrix_scale[4][4]; + unit_m4(matrix_scale); + + mul_v3_fl(matrix_scale[0], scale[0]); + mul_v3_fl(matrix_scale[1], scale[1]); + + transform_pivot_set_m4(matrix_scale, (const float[3]){pivot[0] * dims[0], pivot[1] * dims[1], 0.0f}); + mul_m4_m4m4(mpr->matrix_offset, data->orig_matrix_offset, matrix_scale); + } + + if (mpr_prop->type != NULL) { + WM_manipulator_target_property_value_set_array(C, mpr, mpr_prop, &mpr->matrix_offset[0][0]); + } + + /* tag the region for redraw */ + ED_region_tag_redraw(CTX_wm_region(C)); + WM_event_add_mousemove(C); + + return OPERATOR_RUNNING_MODAL; +} + +static void manipulator_cage2d_property_update(wmManipulator *mpr, wmManipulatorProperty *mpr_prop) +{ + if (STREQ(mpr_prop->type->idname, "matrix")) { + if (WM_manipulator_target_property_array_length(mpr, mpr_prop) == 16) { + WM_manipulator_target_property_value_get_array(mpr, mpr_prop, &mpr->matrix_offset[0][0]); + } + else { + BLI_assert(0); + } + } + else { + BLI_assert(0); + } +} + +static void manipulator_cage2d_exit(bContext *C, wmManipulator *mpr, const bool cancel) +{ + RectTransformInteraction *data = mpr->interaction_data; + + MEM_SAFE_FREE(data->dial); + + if (!cancel) + return; + + wmManipulatorProperty *mpr_prop; + + /* reset properties */ + mpr_prop = WM_manipulator_target_property_find(mpr, "matrix"); + if (mpr_prop->type != NULL) { + WM_manipulator_target_property_value_set_array(C, mpr, mpr_prop, &data->orig_matrix_offset[0][0]); + } + + copy_m4_m4(mpr->matrix_offset, data->orig_matrix_offset); +} + + +/* -------------------------------------------------------------------- */ +/** \name Cage Manipulator API + * + * \{ */ + +static void MANIPULATOR_WT_cage_2d(wmManipulatorType *wt) +{ + /* identifiers */ + wt->idname = "MANIPULATOR_WT_cage_2d"; + + /* api callbacks */ + wt->draw = manipulator_cage2d_draw; + wt->draw_select = manipulator_cage2d_draw_select; + wt->test_select = manipulator_cage2d_test_select; + wt->setup = manipulator_cage2d_setup; + wt->invoke = manipulator_cage2d_invoke; + wt->property_update = manipulator_cage2d_property_update; + wt->modal = manipulator_cage2d_modal; + wt->exit = manipulator_cage2d_exit; + wt->cursor_get = manipulator_cage2d_get_cursor; + + wt->struct_size = sizeof(wmManipulator); + + /* rna */ + static EnumPropertyItem rna_enum_draw_style[] = { + {ED_MANIPULATOR_CAGE2D_STYLE_BOX, "BOX", 0, "Box", ""}, + {ED_MANIPULATOR_CAGE2D_STYLE_CIRCLE, "CIRCLE", 0, "Circle", ""}, + {0, NULL, 0, NULL, NULL} + }; + static EnumPropertyItem rna_enum_transform[] = { + {ED_MANIPULATOR_CAGE2D_XFORM_FLAG_TRANSLATE, "TRANSLATE", 0, "Translate", ""}, + {ED_MANIPULATOR_CAGE2D_XFORM_FLAG_ROTATE, "ROTATE", 0, "Rotate", ""}, + {ED_MANIPULATOR_CAGE2D_XFORM_FLAG_SCALE, "SCALE", 0, "Scale", ""}, + {ED_MANIPULATOR_CAGE2D_XFORM_FLAG_SCALE_UNIFORM, "SCALE_UNIFORM", 0, "Scale Uniform", ""}, + {0, NULL, 0, NULL, NULL} + }; + static EnumPropertyItem rna_enum_draw_options[] = { + {ED_MANIPULATOR_CAGE2D_DRAW_FLAG_XFORM_CENTER_HANDLE, "XFORM_CENTER_HANDLE", 0, "Center Handle", ""}, + {0, NULL, 0, NULL, NULL} + }; + static float unit_v2[2] = {1.0f, 1.0f}; + RNA_def_float_vector(wt->srna, "dimensions", 2, unit_v2, 0, FLT_MAX, "Dimensions", "", 0.0f, FLT_MAX); + RNA_def_enum_flag(wt->srna, "transform", rna_enum_transform, 0, "Transform Options", ""); + RNA_def_enum(wt->srna, "draw_style", rna_enum_draw_style, ED_MANIPULATOR_CAGE2D_STYLE_CIRCLE, "Draw Style", ""); + RNA_def_enum_flag( + wt->srna, "draw_options", rna_enum_draw_options, + ED_MANIPULATOR_CAGE2D_DRAW_FLAG_XFORM_CENTER_HANDLE, "Draw Options", ""); + + WM_manipulatortype_target_property_def(wt, "matrix", PROP_FLOAT, 16); +} + +void ED_manipulatortypes_cage_2d(void) +{ + WM_manipulatortype_append(MANIPULATOR_WT_cage_2d); +} + +/** \} */ |