diff options
Diffstat (limited to 'source/blender/editors/interface/view2d.c')
| -rw-r--r-- | source/blender/editors/interface/view2d.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/source/blender/editors/interface/view2d.c b/source/blender/editors/interface/view2d.c index 51e1b30f0bf..6dbf53cba72 100644 --- a/source/blender/editors/interface/view2d.c +++ b/source/blender/editors/interface/view2d.c @@ -1328,6 +1328,54 @@ void UI_view2d_constant_grid_draw(View2D *v2d) glEnd(); } +/* Draw a multi-level grid in given 2d-region */ +void UI_view2d_multi_grid_draw(View2D *v2d, float step, int level_size, int totlevels) +{ + int offset = -10; + float lstep = step; + int level; + + for (level = 0; level < totlevels; ++level) { + int i; + float start; + + UI_ThemeColorShade(TH_BACK, offset); + + i = (v2d->cur.xmin >= 0.0f ? -(int)(-v2d->cur.xmin / lstep) : (int)(v2d->cur.xmin / lstep)); + start = i * lstep; + + glBegin(GL_LINES); + for (; start < v2d->cur.xmax; start += lstep, ++i) { + if (i == 0 || (level < totlevels - 1 && i % level_size == 0)) + continue; + glVertex2f(start, v2d->cur.ymin); + glVertex2f(start, v2d->cur.ymax); + } + + i = (v2d->cur.ymin >= 0.0f ? -(int)(-v2d->cur.ymin / lstep) : (int)(v2d->cur.ymin / lstep)); + start = i * lstep; + + for (; start < v2d->cur.ymax; start += lstep, ++i) { + if (i == 0 || (level < totlevels - 1 && i % level_size == 0)) + continue; + glVertex2f(v2d->cur.xmin, start); + glVertex2f(v2d->cur.xmax, start); + } + + /* X and Y axis */ + UI_ThemeColorShade(TH_BACK, offset - 8); + glVertex2f(0.0f, v2d->cur.ymin); + glVertex2f(0.0f, v2d->cur.ymax); + glVertex2f(v2d->cur.xmin, 0.0f); + glVertex2f(v2d->cur.xmax, 0.0f); + + glEnd(); + + lstep *= level_size; + offset -= 6; + } +} + /* the price we pay for not exposting structs :( */ void UI_view2d_grid_size(View2DGrid *grid, float *r_dx, float *r_dy) { |