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Differential D11791 Diff 40163 source/blender/editors/interface/view2d.c

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source/blender/editors/interface/view2d.c

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} }
/** \} */ /** \} */
/* -------------------------------------------------------------------- */ /* -------------------------------------------------------------------- */
/** \name Grid-Line Drawing /** \name Grid-Line Drawing
* \{ */ * \{ */
/* Draw a constant grid in given 2d-region */
void UI_view2d_constant_grid_draw(const View2D *v2d, float step)
{
float start_x, start_y;
int count_x, count_y;
start_x = v2d->cur.xmin;
if (start_x < 0.0) {
start_x += -(float)fmod(v2d->cur.xmin, step);
}
else {
start_x += (step - (float)fmod(v2d->cur.xmin, step));
}
if (start_x > v2d->cur.xmax) {
count_x = 0;
}
else {
count_x = (v2d->cur.xmax - start_x) / step + 1;
}
start_y = v2d->cur.ymin;
if (start_y < 0.0) {
start_y += -(float)fmod(v2d->cur.ymin, step);
}
else {
start_y += (step - (float)fabs(fmod(v2d->cur.ymin, step)));
}
if (start_y > v2d->cur.ymax) {
count_y = 0;
}
else {
count_y = (v2d->cur.ymax - start_y) / step + 1;
}
if (count_x > 0 || count_y > 0) {
GPUVertFormat *format = immVertexFormat();
const uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
const uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
float theme_color[3];
UI_GetThemeColorShade3fv(TH_BACK, -10, theme_color);
immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
immBegin(GPU_PRIM_LINES, count_x * 2 + count_y * 2 + 4);
immAttr3fv(color, theme_color);
for (int i = 0; i < count_x; start_x += step, i++) {
immVertex2f(pos, start_x, v2d->cur.ymin);
immVertex2f(pos, start_x, v2d->cur.ymax);
}
for (int i = 0; i < count_y; start_y += step, i++) {
immVertex2f(pos, v2d->cur.xmin, start_y);
immVertex2f(pos, v2d->cur.xmax, start_y);
}
/* X and Y axis */
UI_GetThemeColorShade3fv(TH_BACK, -18, theme_color);
immAttr3fv(color, theme_color);
immVertex2f(pos, 0.0f, v2d->cur.ymin);
immVertex2f(pos, 0.0f, v2d->cur.ymax);
immVertex2f(pos, v2d->cur.xmin, 0.0f);
immVertex2f(pos, v2d->cur.xmax, 0.0f);
immEnd();
immUnbindProgram();
}
}
/* Draw a multi-level grid in given 2d-region */ /* Draw a multi-level grid in given 2d-region */
void UI_view2d_multi_grid_draw( void UI_view2d_multi_grid_draw(
const View2D *v2d, int colorid, float step, int level_size, int totlevels) const View2D *v2d, int colorid, float step, int level_size, int totlevels)
{ {
/* Exit if there is nothing to draw */ /* Exit if there is nothing to draw */
if (totlevels == 0) { if (totlevels == 0) {
return; return;
} }
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{ {
return BLI_rcti_size_x(&v2d->mask) / BLI_rctf_size_x(&v2d->cur); return BLI_rcti_size_x(&v2d->mask) / BLI_rctf_size_x(&v2d->cur);
} }
float UI_view2d_scale_get_y(const View2D *v2d) float UI_view2d_scale_get_y(const View2D *v2d)
{ {
return BLI_rcti_size_y(&v2d->mask) / BLI_rctf_size_y(&v2d->cur); return BLI_rcti_size_y(&v2d->mask) / BLI_rctf_size_y(&v2d->cur);
} }
/** /**
* Same as ``UI_view2d_scale_get() - 1.0f / x, y`` * Same as `UI_view2d_scale_get() - 1.0f / x, y`.
*/ */
void UI_view2d_scale_get_inverse(const View2D *v2d, float *r_x, float *r_y) void UI_view2d_scale_get_inverse(const View2D *v2d, float *r_x, float *r_y)
{ {
if (r_x) { if (r_x) {
*r_x = BLI_rctf_size_x(&v2d->cur) / BLI_rcti_size_x(&v2d->mask); *r_x = BLI_rctf_size_x(&v2d->cur) / BLI_rcti_size_x(&v2d->mask);
} }
if (r_y) { if (r_y) {
*r_y = BLI_rctf_size_y(&v2d->cur) / BLI_rcti_size_y(&v2d->mask); *r_y = BLI_rctf_size_y(&v2d->cur) / BLI_rcti_size_y(&v2d->mask);
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