diff options
Diffstat (limited to 'source/blender/editors/interface/view2d.c')
| -rw-r--r-- | source/blender/editors/interface/view2d.c | 466 |
1 files changed, 4 insertions, 462 deletions
diff --git a/source/blender/editors/interface/view2d.c b/source/blender/editors/interface/view2d.c index 072497dbb74..58d26c4a840 100644 --- a/source/blender/editors/interface/view2d.c +++ b/source/blender/editors/interface/view2d.c @@ -31,12 +31,14 @@ #include "DNA_scene_types.h" #include "DNA_userdef_types.h" +#include "BLI_array.h" #include "BLI_utildefines.h" #include "BLI_link_utils.h" #include "BLI_rect.h" #include "BLI_math.h" #include "BLI_memarena.h" #include "BLI_timecode.h" +#include "BLI_string.h" #include "BKE_context.h" #include "BKE_screen.h" @@ -1117,7 +1119,7 @@ void UI_view2d_zoom_cache_reset(void) /* View Matrix Setup */ /* mapping function to ensure 'cur' draws extended over the area where sliders are */ -static void view2d_map_cur_using_mask(View2D *v2d, rctf *r_curmasked) +static void view2d_map_cur_using_mask(const View2D *v2d, rctf *r_curmasked) { *r_curmasked = v2d->cur; @@ -1149,7 +1151,7 @@ static void view2d_map_cur_using_mask(View2D *v2d, rctf *r_curmasked) } /* Set view matrices to use 'cur' rect as viewing frame for View2D drawing */ -void UI_view2d_view_ortho(View2D *v2d) +void UI_view2d_view_ortho(const View2D *v2d) { rctf curmasked; const int sizex = BLI_rcti_size_x(&v2d->mask); @@ -1238,337 +1240,6 @@ void UI_view2d_view_restore(const bContext *C) /* *********************************************************************** */ /* Gridlines */ -/* View2DGrid is typedef'd in UI_view2d.h */ -struct View2DGrid { - float dx, dy; /* stepsize (in pixels) between gridlines */ - float startx, starty; /* initial coordinates to start drawing grid from */ - int powerx, powery; /* step as power of 10 */ -}; - -/* --------------- */ - -/* try to write step as a power of 10 */ -static void step_to_grid(float *step, const int unit, int *r_power) -{ - const float loga = (float)log10(*step); - float rem; - - int power = (int)(loga); - - rem = loga - power; - rem = (float)pow(10.0, rem); - - if (loga < 0.0f) { - if (rem < 0.2f) { - rem = 0.2f; - } - else if (rem < 0.5f) { - rem = 0.5f; - } - else { - rem = 1.0f; - } - - *step = rem * (float)pow(10.0, power); - - /* for frames, we want 1.0 frame intervals only */ - if (unit == V2D_UNIT_FRAMES) { - rem = 1.0f; - /* use 2 since there are grid lines drawn in between, - * this way to get 1 line per frame */ - *step = 2.0f; - } - - /* prevents printing 1.0 2.0 3.0 etc */ - if (rem == 1.0f) { - power++; - } - } - else { - if (rem < 2.0f) { - rem = 2.0f; - } - else if (rem < 5.0f) { - rem = 5.0f; - } - else { - rem = 10.0f; - } - - *step = rem * (float)pow(10.0, power); - - power++; - /* prevents printing 1.0, 2.0, 3.0, etc. */ - if (rem == 10.0f) { - power++; - } - } - - *r_power = power; -} - -/** - * Initialize settings necessary for drawing gridlines in a 2d-view - * - * - Currently, will return pointer to View2DGrid struct that needs to - * be freed with UI_view2d_grid_free() - * - Units + clamping args will be checked, to make sure they are valid values that can be used - * so it is very possible that we won't return grid at all! - * - * - xunits,yunits = V2D_UNIT_* grid steps in seconds or frames - * - xclamp,yclamp = V2D_CLAMP_* only show whole-number intervals - * - winx = width of region we're drawing to, note: not used but keeping for completeness. - * - winy = height of region we're drawing into - */ -View2DGrid *UI_view2d_grid_calc(Scene *scene, - View2D *v2d, - short xunits, - short xclamp, - short yunits, - short yclamp, - int UNUSED(winx), - int winy) -{ - - View2DGrid *grid; - float space, seconddiv; - - /* check that there are at least some workable args */ - if (ELEM(V2D_ARG_DUMMY, xunits, xclamp) && ELEM(V2D_ARG_DUMMY, yunits, yclamp)) { - return NULL; - } - - /* grid here is allocated... */ - grid = MEM_callocN(sizeof(View2DGrid), "View2DGrid"); - - /* rule: gridstep is minimal GRIDSTEP pixels */ - if (xunits == V2D_UNIT_SECONDS) { - seconddiv = (float)(0.01 * FPS); - } - else { - seconddiv = 1.0f; - } - - /* calculate x-axis grid scale (only if both args are valid) */ - if (ELEM(V2D_ARG_DUMMY, xunits, xclamp) == 0) { - space = BLI_rctf_size_x(&v2d->cur); - - if (space != 0.0f) { - const float pixels = (float)BLI_rcti_size_x(&v2d->mask); - if (pixels != 0.0f) { - grid->dx = (U.v2d_min_gridsize * UI_DPI_FAC * space) / (seconddiv * pixels); - step_to_grid(&grid->dx, xunits, &grid->powerx); - grid->dx *= seconddiv; - } - } - - if (xclamp == V2D_GRID_CLAMP) { - CLAMP_MIN(grid->dx, 0.1f); - CLAMP_MIN(grid->powerx, 0); - grid->powerx -= 2; - } - } - - /* calculate y-axis grid scale (only if both args are valid) */ - if (ELEM(V2D_ARG_DUMMY, yunits, yclamp) == 0) { - space = BLI_rctf_size_y(&v2d->cur); - if (space != 0.0f) { - const float pixels = (float)winy; - if (pixels != 0.0f) { - grid->dy = U.v2d_min_gridsize * UI_DPI_FAC * space / pixels; - step_to_grid(&grid->dy, yunits, &grid->powery); - } - } - - if (yclamp == V2D_GRID_CLAMP) { - CLAMP_MIN(grid->dy, 1.0f); - CLAMP_MIN(grid->powery, 1); - } - } - - /* calculate start position */ - if (ELEM(V2D_ARG_DUMMY, xunits, xclamp) == 0) { - grid->startx = seconddiv * (v2d->cur.xmin / seconddiv - - (float)fmod(v2d->cur.xmin / seconddiv, grid->dx / seconddiv)); - if (v2d->cur.xmin < 0.0f) { - grid->startx -= grid->dx; - } - } - else { - grid->startx = v2d->cur.xmin; - } - - if (ELEM(V2D_ARG_DUMMY, yunits, yclamp) == 0) { - grid->starty = (v2d->cur.ymin - (float)fmod(v2d->cur.ymin, grid->dy)); - if (v2d->cur.ymin < 0.0f) { - grid->starty -= grid->dy; - } - } - else { - grid->starty = v2d->cur.ymin; - } - - return grid; -} - -/* Draw gridlines in the given 2d-region */ -void UI_view2d_grid_draw(View2D *v2d, View2DGrid *grid, int flag) -{ - float vec1[2], vec2[2]; - int a, step; - int vertical_minor_step = (BLI_rcti_size_x(&v2d->mask) + 1) / (U.v2d_min_gridsize * UI_DPI_FAC); - int horizontal_major_step = (BLI_rcti_size_y(&v2d->mask) + 1) / - (U.v2d_min_gridsize * UI_DPI_FAC); - uchar grid_line_color[3]; - - /* check for grid first, as it may not exist */ - if (grid == NULL) { - return; - } - - /* Count the needed vertices for the gridlines */ - unsigned vertex_count = 0; - if (flag & V2D_VERTICAL_LINES) { - /* vertical lines */ - vertex_count += 2 * vertical_minor_step; /* minor gridlines */ - vertex_count += 2 * (vertical_minor_step + 2); /* major gridlines */ - } - if (flag & V2D_HORIZONTAL_LINES) { - /* horizontal lines */ - vertex_count += 2 * (horizontal_major_step + 1); /* major gridlines */ - - /* fine lines */ - if (flag & V2D_HORIZONTAL_FINELINES) { - vertex_count += 2 * (horizontal_major_step + 1); - } - } - /* axes */ - if (flag & V2D_HORIZONTAL_AXIS) { - vertex_count += 2; - } - if (flag & V2D_VERTICAL_AXIS) { - vertex_count += 2; - } - - /* If there is nothing to render, exit early */ - if (vertex_count == 0) { - return; - } - - GPUVertFormat *format = immVertexFormat(); - uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT); - uint color = GPU_vertformat_attr_add( - format, "color", GPU_COMP_U8, 3, GPU_FETCH_INT_TO_FLOAT_UNIT); - - immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR); - immBegin(GPU_PRIM_LINES, vertex_count); - - /* vertical lines */ - if (flag & V2D_VERTICAL_LINES) { - /* initialize initial settings */ - vec1[0] = vec2[0] = grid->startx; - vec1[1] = grid->starty; - vec2[1] = v2d->cur.ymax; - - /* minor gridlines */ - step = vertical_minor_step; - if (step != 0) { - UI_GetThemeColor3ubv(TH_GRID, grid_line_color); - - for (a = 0; a < step; a++) { - immAttrSkip(color); - immVertex2fv(pos, vec1); - immAttr3ubv(color, grid_line_color); - immVertex2fv(pos, vec2); - - vec2[0] = vec1[0] += grid->dx; - } - } - - /* major gridlines */ - vec2[0] = vec1[0] -= 0.5f * grid->dx; - - UI_GetThemeColorShade3ubv(TH_GRID, 16, grid_line_color); - - step++; - for (a = 0; a <= step; a++) { - immAttrSkip(color); - immVertex2fv(pos, vec1); - immAttr3ubv(color, grid_line_color); - immVertex2fv(pos, vec2); - - vec2[0] = vec1[0] -= grid->dx; - } - } - - /* horizontal lines */ - if (flag & V2D_HORIZONTAL_LINES) { - /* only major gridlines */ - vec1[1] = vec2[1] = grid->starty; - vec1[0] = grid->startx; - vec2[0] = v2d->cur.xmax; - - step = horizontal_major_step; - - UI_GetThemeColor3ubv(TH_GRID, grid_line_color); - - for (a = 0; a <= step; a++) { - immAttrSkip(color); - immVertex2fv(pos, vec1); - immAttr3ubv(color, grid_line_color); - immVertex2fv(pos, vec2); - - vec2[1] = vec1[1] += grid->dy; - } - - /* fine grid lines */ - vec2[1] = vec1[1] -= 0.5f * grid->dy; - step++; - - if (flag & V2D_HORIZONTAL_FINELINES) { - UI_GetThemeColorShade3ubv(TH_GRID, 16, grid_line_color); - for (a = 0; a < step; a++) { - immAttrSkip(color); - immVertex2fv(pos, vec1); - immAttr3ubv(color, grid_line_color); - immVertex2fv(pos, vec2); - - vec2[1] = vec1[1] -= grid->dy; - } - } - } - - /* Axes are drawn as darker lines */ - UI_GetThemeColorShade3ubv(TH_GRID, -50, grid_line_color); - - /* horizontal axis */ - if (flag & V2D_HORIZONTAL_AXIS) { - vec1[0] = v2d->cur.xmin; - vec2[0] = v2d->cur.xmax; - vec1[1] = vec2[1] = 0.0f; - - immAttrSkip(color); - immVertex2fv(pos, vec1); - immAttr3ubv(color, grid_line_color); - immVertex2fv(pos, vec2); - } - - /* vertical axis */ - if (flag & V2D_VERTICAL_AXIS) { - vec1[1] = v2d->cur.ymin; - vec2[1] = v2d->cur.ymax; - vec1[0] = vec2[0] = 0.0f; - - immAttrSkip(color); - immVertex2fv(pos, vec1); - immAttr3ubv(color, grid_line_color); - immVertex2fv(pos, vec2); - } - - immEnd(); - immUnbindProgram(); -} - /* Draw a constant grid in given 2d-region */ void UI_view2d_constant_grid_draw(View2D *v2d, float step) { @@ -1726,135 +1397,6 @@ void UI_view2d_multi_grid_draw(View2D *v2d, int colorid, float step, int level_s immUnbindProgram(); } -static void get_scale_indicator_text( - const Scene *scene, float value, int brevity_level, short unit, uint max_length, char *r_str) -{ - if (unit == V2D_UNIT_SECONDS) { - BLI_timecode_string_from_time( - r_str, max_length, brevity_level, value / (float)FPS, FPS, U.timecode_style); - } - else { - BLI_timecode_string_from_time_seconds(r_str, max_length, brevity_level, value); - } -} - -void UI_view2d_grid_draw_numbers_horizontal(const Scene *scene, - const View2D *v2d, - const View2DGrid *grid, - const rcti *rect, - int unit, - bool whole_numbers_only) -{ - BLI_assert(grid); - float xstep = grid->dx * UI_view2d_scale_get_x(v2d); - if (xstep <= 0.0f) { - return; - } - - float initial_xpos = UI_view2d_view_to_region_x(v2d, grid->startx); - float ypos = (float)rect->ymin + 4 * UI_DPI_FAC; - float initial_value = grid->startx; - float value_step = grid->dx; - int brevity_level = grid->powerx; - - /* Make sure that the value_step is >= 1 when only whole numbers are displayed. - * Otherwise the same number could be displayed more than once. */ - if (whole_numbers_only) { - while (value_step < 0.9999f) { - xstep *= 2.0f; - value_step *= 2.0f; - } - } - - /* Skip first few steps if they don't intersect - * the rectangle that will contain the numbers. */ - while (initial_xpos < rect->xmin) { - initial_xpos += xstep; - initial_value += value_step; - } - - if (unit == V2D_UNIT_FRAMES) { - brevity_level = 1; - } - - const int font_id = BLF_default(); - UI_FontThemeColor(font_id, TH_TEXT); - - BLF_batch_draw_begin(); - - for (float xpos = initial_xpos, value = initial_value; xpos < rect->xmax; - xpos += xstep, value += value_step) { - char text[32]; - get_scale_indicator_text(scene, value, brevity_level, unit, sizeof(text), text); - float text_width = BLF_width(font_id, text, strlen(text)); - BLF_draw_default_ascii(xpos - text_width / 2.0f, ypos, 0.0f, text, sizeof(text)); - } - - BLF_batch_draw_end(); -} - -void UI_view2d_grid_draw_numbers_vertical(const Scene *scene, - const View2D *v2d, - const View2DGrid *grid, - const rcti *rect, - int unit, - float text_offset) -{ - BLI_assert(grid); - float ystep = grid->dy * UI_view2d_scale_get_y(v2d); - if (ystep <= 0.0f) { - return; - } - - const int font_id = BLF_default(); - UI_FontThemeColor(font_id, TH_TEXT); - - BLF_enable(font_id, BLF_ROTATION); - BLF_rotation(font_id, M_PI_2); - - float initial_value = grid->starty; - float value_step = grid->dy; - float xpos = rect->xmax - 2.0f * UI_DPI_FAC; - float initial_ypos = UI_view2d_view_to_region_y(v2d, grid->starty); - - /* Currently only used by the sequencer to display - * channel numbers in the center. */ - initial_ypos += text_offset * ystep; - - /* Skip first few steps if they don't intersect - * the rectangle that will contain the numbers. */ - while (initial_ypos < rect->ymin) { - initial_ypos += ystep; - initial_value += value_step; - } - - for (float ypos = initial_ypos, value = initial_value; ypos < rect->ymax; - ypos += ystep, value += value_step) { - char text[32]; - get_scale_indicator_text(scene, value, grid->powery, unit, sizeof(text), text); - float text_width = BLF_width(font_id, text, sizeof(text)); - BLF_draw_default_ascii(xpos, ypos - text_width / 2.0f, 0.0f, text, sizeof(text)); - } - - BLF_disable(font_id, BLF_ROTATION); -} - -/* the price we pay for not exposting structs :( */ -void UI_view2d_grid_size(View2DGrid *grid, float *r_dx, float *r_dy) -{ - *r_dx = grid->dx; - *r_dy = grid->dy; -} - -/* free temporary memory used for drawing grid */ -void UI_view2d_grid_free(View2DGrid *grid) -{ - /* only free if there's a grid */ - if (grid) { - MEM_freeN(grid); - } -} - /* *********************************************************************** */ /* Scrollers */ |