diff options
-rw-r--r-- | source/blender/editors/transform/transform_draw_cursors.c | 394 |
1 files changed, 135 insertions, 259 deletions
diff --git a/source/blender/editors/transform/transform_draw_cursors.c b/source/blender/editors/transform/transform_draw_cursors.c index 84fc45e2b45..b4b28ea0ac0 100644 --- a/source/blender/editors/transform/transform_draw_cursors.c +++ b/source/blender/editors/transform/transform_draw_cursors.c @@ -45,103 +45,49 @@ enum eArrowDirection { RIGHT, }; -struct ArrowDims { - int offset; - int length; - int size; -}; - -#define POS_INDEX 0 -/* NOTE: this --^ is a bit hackish, but simplifies GPUVertFormat usage among functions - * private to this file - merwin - */ +#define ARROW_WIDTH (2.0f * U.pixelsize) +#define DASH_WIDTH (1.0f) +#define DASH_LENGTH (8.0f * DASH_WIDTH * U.pixelsize) -static void drawArrow(enum eArrowDirection dir, const struct ArrowDims *arrow_dims) +static void drawArrow(const uint pos_id, const enum eArrowDirection dir) { - int offset = arrow_dims->offset; - int length = arrow_dims->length; - int size = arrow_dims->size; + int offset = 5.0f * UI_DPI_FAC; + int length = (6.0f * UI_DPI_FAC) + (4.0f * U.pixelsize); + int size = (3.0f * UI_DPI_FAC) + (2.0f * U.pixelsize); + + /* To line up the arrow point nicely, one end has to be extended by half its width. But + * being on a 45 degree angle, Pythagoras says a movement of sqrt(2)/2 * (line width /2) */ + float adjust = (M_SQRT2 * ARROW_WIDTH / 4.0f); + + if (ELEM(dir, LEFT, DOWN)) { + offset = -offset; + length = -length; + size = -size; + adjust = -adjust; + } immBegin(GPU_PRIM_LINES, 6); - switch (dir) { - case LEFT: - offset = -offset; - length = -length; - size = -size; - ATTR_FALLTHROUGH; - case RIGHT: - immVertex2f(POS_INDEX, offset, 0); - immVertex2f(POS_INDEX, offset + length, 0); - immVertex2f(POS_INDEX, offset + length, 0); - immVertex2f(POS_INDEX, offset + length - size, -size); - immVertex2f(POS_INDEX, offset + length, 0); - immVertex2f(POS_INDEX, offset + length - size, size); - break; - - case DOWN: - offset = -offset; - length = -length; - size = -size; - ATTR_FALLTHROUGH; - case UP: - immVertex2f(POS_INDEX, 0, offset); - immVertex2f(POS_INDEX, 0, offset + length); - immVertex2f(POS_INDEX, 0, offset + length); - immVertex2f(POS_INDEX, -size, offset + length - size); - immVertex2f(POS_INDEX, 0, offset + length); - immVertex2f(POS_INDEX, size, offset + length - size); - break; + if (ELEM(dir, LEFT, RIGHT)) { + immVertex2f(pos_id, offset, 0); + immVertex2f(pos_id, offset + length, 0); + immVertex2f(pos_id, offset + length + adjust, adjust); + immVertex2f(pos_id, offset + length - size, -size); + immVertex2f(pos_id, offset + length, 0); + immVertex2f(pos_id, offset + length - size, size); } - - immEnd(); -} - -static void drawArrowHead(enum eArrowDirection dir, int size) -{ - immBegin(GPU_PRIM_LINES, 4); - - switch (dir) { - case LEFT: - size = -size; - ATTR_FALLTHROUGH; - case RIGHT: - immVertex2f(POS_INDEX, 0, 0); - immVertex2f(POS_INDEX, -size, -size); - immVertex2f(POS_INDEX, 0, 0); - immVertex2f(POS_INDEX, -size, size); - break; - - case DOWN: - size = -size; - ATTR_FALLTHROUGH; - case UP: - immVertex2f(POS_INDEX, 0, 0); - immVertex2f(POS_INDEX, -size, -size); - immVertex2f(POS_INDEX, 0, 0); - immVertex2f(POS_INDEX, size, -size); - break; + else { + immVertex2f(pos_id, 0, offset); + immVertex2f(pos_id, 0, offset + length); + immVertex2f(pos_id, adjust, offset + length + adjust); + immVertex2f(pos_id, -size, offset + length - size); + immVertex2f(pos_id, 0, offset + length); + immVertex2f(pos_id, size, offset + length - size); } immEnd(); } -static void drawArc(float angle_start, float angle_end, int segments, float size) -{ - float delta = (angle_end - angle_start) / segments; - float angle; - int a; - - immBegin(GPU_PRIM_LINE_STRIP, segments + 1); - - for (angle = angle_start, a = 0; a < segments; angle += delta, a++) { - immVertex2f(POS_INDEX, cosf(angle) * size, sinf(angle) * size); - } - immVertex2f(POS_INDEX, cosf(angle_end) * size, sinf(angle_end) * size); - - immEnd(); -} - /** * Poll callback for cursor drawing: * #WM_paint_cursor_activate @@ -149,11 +95,7 @@ static void drawArc(float angle_start, float angle_end, int segments, float size bool transform_draw_cursor_poll(bContext *C) { ARegion *region = CTX_wm_region(C); - - if (region && region->regiontype == RGN_TYPE_WINDOW) { - return 1; - } - return 0; + return (region && region->regiontype == RGN_TYPE_WINDOW) ? 1 : 0; } /** @@ -164,181 +106,115 @@ void transform_draw_cursor_draw(bContext *UNUSED(C), int x, int y, void *customd { TransInfo *t = (TransInfo *)customdata; - if (t->helpline != HLP_NONE) { - struct ArrowDims arrow_dims = { - .offset = 5 * UI_DPI_FAC, - .length = 10 * UI_DPI_FAC, - .size = 5 * UI_DPI_FAC, - }; - - float cent[2]; - const float mval[3] = {x, y, 0.0f}; - float tmval[2] = { - (float)t->mval[0], - (float)t->mval[1], - }; - - projectFloatViewEx(t, t->center_global, cent, V3D_PROJ_TEST_CLIP_ZERO); - /* Offset the values for the area region. */ - const float offset[2] = { - t->region->winrct.xmin, - t->region->winrct.ymin, - }; - - for (int i = 0; i < 2; i++) { - cent[i] += offset[i]; - tmval[i] += offset[i]; - } - - GPU_line_smooth(true); - GPU_blend(GPU_BLEND_ALPHA); - - GPU_matrix_push(); - - /* Dashed lines first. */ - if (ELEM(t->helpline, HLP_SPRING, HLP_ANGLE)) { - const uint shdr_pos = GPU_vertformat_attr_add( - immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT); - - UNUSED_VARS_NDEBUG(shdr_pos); /* silence warning */ - BLI_assert(shdr_pos == POS_INDEX); + if (t->helpline == HLP_NONE) { + return; + } - GPU_line_width(1.0f); + float cent[2]; + const float mval[3] = {x, y, 0.0f}; + float tmval[2] = { + (float)t->mval[0], + (float)t->mval[1], + }; + + projectFloatViewEx(t, t->center_global, cent, V3D_PROJ_TEST_CLIP_ZERO); + /* Offset the values for the area region. */ + const float offset[2] = { + t->region->winrct.xmin, + t->region->winrct.ymin, + }; + + for (int i = 0; i < 2; i++) { + cent[i] += offset[i]; + tmval[i] += offset[i]; + } - immBindBuiltinProgram(GPU_SHADER_2D_LINE_DASHED_UNIFORM_COLOR); + float viewport_size[4]; + GPU_viewport_size_get_f(viewport_size); + + GPU_line_smooth(true); + GPU_blend(GPU_BLEND_ALPHA); + const uint pos_id = GPU_vertformat_attr_add( + immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT); + + /* Dashed lines first. */ + if (ELEM(t->helpline, HLP_SPRING, HLP_ANGLE)) { + GPU_line_width(DASH_WIDTH); + immBindBuiltinProgram(GPU_SHADER_2D_LINE_DASHED_UNIFORM_COLOR); + immUniform2f("viewport_size", viewport_size[2], viewport_size[3]); + immUniform1i("colors_len", 0); /* "simple" mode */ + immUniformThemeColor3(TH_VIEW_OVERLAY); + immUniform1f("dash_width", DASH_LENGTH); + immUniform1f("dash_factor", 0.5f); + immBegin(GPU_PRIM_LINES, 2); + immVertex2fv(pos_id, cent); + immVertex2f(pos_id, tmval[0], tmval[1]); + immEnd(); + immUnbindProgram(); + } - float viewport_size[4]; - GPU_viewport_size_get_f(viewport_size); - immUniform2f("viewport_size", viewport_size[2], viewport_size[3]); + /* And now, solid lines. */ - immUniform1i("colors_len", 0); /* "simple" mode */ - immUniformThemeColor3(TH_VIEW_OVERLAY); - immUniform1f("dash_width", 6.0f * UI_DPI_FAC); - immUniform1f("dash_factor", 0.5f); + immBindBuiltinProgram(GPU_SHADER_3D_POLYLINE_UNIFORM_COLOR); + immUniformThemeColor3(TH_VIEW_OVERLAY); + immUniform2fv("viewportSize", &viewport_size[2]); + immUniform1f("lineWidth", ARROW_WIDTH); - immBegin(GPU_PRIM_LINES, 2); - immVertex2fv(POS_INDEX, cent); - immVertex2f(POS_INDEX, tmval[0], tmval[1]); - immEnd(); + GPU_matrix_push(); + GPU_matrix_translate_3fv(mval); - immUnbindProgram(); + switch (t->helpline) { + case HLP_SPRING: + GPU_matrix_rotate_axis(-RAD2DEGF(atan2f(cent[0] - tmval[0], cent[1] - tmval[1])), 'Z'); + drawArrow(pos_id, UP); + drawArrow(pos_id, DOWN); + break; + case HLP_HARROW: + drawArrow(pos_id, RIGHT); + drawArrow(pos_id, LEFT); + break; + case HLP_VARROW: + drawArrow(pos_id, UP); + drawArrow(pos_id, DOWN); + break; + case HLP_CARROW: { + /* Draw arrow based on direction defined by custom-points. */ + const int *data = t->mouse.data; + const float angle = -atan2f(data[2] - data[0], data[3] - data[1]); + GPU_matrix_rotate_axis(RAD2DEGF(angle), 'Z'); + drawArrow(pos_id, UP); + drawArrow(pos_id, DOWN); + break; } - - /* And now, solid lines. */ - uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT); - UNUSED_VARS_NDEBUG(pos); /* silence warning */ - BLI_assert(pos == POS_INDEX); - immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR); - - switch (t->helpline) { - case HLP_SPRING: - immUniformThemeColor3(TH_VIEW_OVERLAY); - - GPU_matrix_translate_3fv(mval); - GPU_matrix_rotate_axis(-RAD2DEGF(atan2f(cent[0] - tmval[0], cent[1] - tmval[1])), 'Z'); - - GPU_line_width(3.0f); - drawArrow(UP, &arrow_dims); - drawArrow(DOWN, &arrow_dims); - break; - case HLP_HARROW: - immUniformThemeColor3(TH_VIEW_OVERLAY); - GPU_matrix_translate_3fv(mval); - - GPU_line_width(3.0f); - drawArrow(RIGHT, &arrow_dims); - drawArrow(LEFT, &arrow_dims); - break; - case HLP_VARROW: - immUniformThemeColor3(TH_VIEW_OVERLAY); - - GPU_matrix_translate_3fv(mval); - - GPU_line_width(3.0f); - drawArrow(UP, &arrow_dims); - drawArrow(DOWN, &arrow_dims); - break; - case HLP_CARROW: { - /* Draw arrow based on direction defined by custom-points. */ - immUniformThemeColor3(TH_VIEW_OVERLAY); - - GPU_matrix_translate_3fv(mval); - - GPU_line_width(3.0f); - - const int *data = t->mouse.data; - const float dx = data[2] - data[0], dy = data[3] - data[1]; - const float angle = -atan2f(dx, dy); - - GPU_matrix_push(); - - GPU_matrix_rotate_axis(RAD2DEGF(angle), 'Z'); - - drawArrow(UP, &arrow_dims); - drawArrow(DOWN, &arrow_dims); - - GPU_matrix_pop(); - break; - } - case HLP_ANGLE: { - float dx = tmval[0] - cent[0], dy = tmval[1] - cent[1]; - float angle = atan2f(dy, dx); - float dist = hypotf(dx, dy); - float delta_angle = min_ff(15.0f / (dist / UI_DPI_FAC), (float)M_PI / 4.0f); - float spacing_angle = min_ff(5.0f / (dist / UI_DPI_FAC), (float)M_PI / 12.0f); - - immUniformThemeColor3(TH_VIEW_OVERLAY); - - GPU_matrix_translate_3f(cent[0] - tmval[0] + mval[0], cent[1] - tmval[1] + mval[1], 0); - - GPU_line_width(3.0f); - drawArc(angle - delta_angle, angle - spacing_angle, 10, dist); - drawArc(angle + spacing_angle, angle + delta_angle, 10, dist); - - GPU_matrix_push(); - - GPU_matrix_translate_3f( - cosf(angle - delta_angle) * dist, sinf(angle - delta_angle) * dist, 0); - GPU_matrix_rotate_axis(RAD2DEGF(angle - delta_angle), 'Z'); - - drawArrowHead(DOWN, arrow_dims.size); - - GPU_matrix_pop(); - - GPU_matrix_translate_3f( - cosf(angle + delta_angle) * dist, sinf(angle + delta_angle) * dist, 0); - GPU_matrix_rotate_axis(RAD2DEGF(angle + delta_angle), 'Z'); - - drawArrowHead(UP, arrow_dims.size); - break; - } - case HLP_TRACKBALL: { - uchar col[3], col2[3]; - UI_GetThemeColor3ubv(TH_GRID, col); - - GPU_matrix_translate_3fv(mval); - - GPU_line_width(3.0f); - - UI_make_axis_color(col, col2, 'X'); - immUniformColor3ubv(col2); - - drawArrow(RIGHT, &arrow_dims); - drawArrow(LEFT, &arrow_dims); - - UI_make_axis_color(col, col2, 'Y'); - immUniformColor3ubv(col2); - - drawArrow(UP, &arrow_dims); - drawArrow(DOWN, &arrow_dims); - break; - } + case HLP_ANGLE: { + GPU_matrix_push(); + float angle = atan2f(tmval[1] - cent[1], tmval[0] - cent[0]); + GPU_matrix_translate_3f(cosf(angle), sinf(angle), 0); + GPU_matrix_rotate_axis(RAD2DEGF(angle), 'Z'); + drawArrow(pos_id, DOWN); + GPU_matrix_pop(); + GPU_matrix_translate_3f(cosf(angle), sinf(angle), 0); + GPU_matrix_rotate_axis(RAD2DEGF(angle), 'Z'); + drawArrow(pos_id, UP); + break; + } + case HLP_TRACKBALL: { + uchar col[3], col2[3]; + UI_GetThemeColor3ubv(TH_GRID, col); + UI_make_axis_color(col, col2, 'X'); + immUniformColor3ubv(col2); + drawArrow(pos_id, RIGHT); + drawArrow(pos_id, LEFT); + UI_make_axis_color(col, col2, 'Y'); + immUniformColor3ubv(col2); + drawArrow(pos_id, UP); + drawArrow(pos_id, DOWN); + break; } - - immUnbindProgram(); - GPU_matrix_pop(); - - GPU_line_smooth(false); - GPU_blend(GPU_BLEND_NONE); } + + GPU_matrix_pop(); + immUnbindProgram(); + GPU_line_smooth(false); + GPU_blend(GPU_BLEND_NONE); } |