/**
* Similar to #UI_fontstyle_draw
* but ignore alignment, shadow & no clipping rect.
*
* For drawing on-screen labels.
*/
void UI_fontstyle_draw_simple(const uiFontStyle *fs, float x, float y, const char *str)
{
if (fs->kerning == 1)
BLF_enable(fs->uifont_id, BLF_KERNING_DEFAULT);
UI_fontstyle_set(fs);
BLF_position(fs->uifont_id, x, y, 0.0f);
BLF_draw(fs->uifont_id, str, BLF_DRAW_STR_DUMMY_MAX);
if (fs->kerning == 1)
BLF_disable(fs->uifont_id, BLF_KERNING_DEFAULT);
}
/* drawn same as above, but at 90 degree angle */
void UI_fontstyle_draw_rotated(const uiFontStyle *fs, const rcti *rect, const char *str)
{
float height;
int xofs, yofs;
float angle;
rcti txtrect;
UI_fontstyle_set(fs);
height = BLF_ascender(fs->uifont_id);
/* becomes x-offset when rotated */
xofs = ceil(0.5f * (BLI_rcti_size_y(rect) - height));
/* ignore UI_STYLE, always aligned to top */
/* rotate counter-clockwise for now (assumes left-to-right language)*/
xofs += height;
yofs = BLF_width(fs->uifont_id, str, BLF_DRAW_STR_DUMMY_MAX) + 5;
angle = M_PI_2;
/* translate rect to vertical */
txtrect.xmin = rect->xmin - BLI_rcti_size_y(rect);
txtrect.ymin = rect->ymin - BLI_rcti_size_x(rect);
txtrect.xmax = rect->xmin;
txtrect.ymax = rect->ymin;
/* clip is very strict, so we give it some space */
/* clipping is done without rotation, so make rect big enough to contain both positions */
BLF_clipping(fs->uifont_id, txtrect.xmin - 1, txtrect.ymin - yofs - xofs - 4, rect->xmax + 1, rect->ymax + 4);
BLF_enable(fs->uifont_id, BLF_CLIPPING);
BLF_position(fs->uifont_id, txtrect.xmin + xofs, txtrect.ymax - yofs, 0.0f);
BLF_enable(fs->uifont_id, BLF_ROTATION);
BLF_rotation(fs->uifont_id, angle);
if (fs->shadow) {
BLF_enable(fs->uifont_id, BLF_SHADOW);
const float shadow_color[4] = {fs->shadowcolor, fs->shadowcolor, fs->shadowcolor, fs->shadowalpha};
BLF_shadow(fs->uifont_id, fs->shadow, shadow_color);
BLF_shadow_offset(fs->uifont_id, fs->shadx, fs->shady);
}
if (fs->kerning == 1)
BLF_enable(fs->uifont_id, BLF_KERNING_DEFAULT);
BLF_draw(fs->uifont_id, str, BLF_DRAW_STR_DUMMY_MAX);
BLF_disable(fs->uifont_id, BLF_ROTATION);
BLF_disable(fs->uifont_id, BLF_CLIPPING);
if (fs->shadow)
BLF_disable(fs->uifont_id, BLF_SHADOW);
if (fs->kerning == 1)
BLF_disable(fs->uifont_id, BLF_KERNING_DEFAULT);
}
int UI_fontstyle_string_width(const uiFontStyle *fs, const char *str)
{
int width;
if (fs->kerning == 1) /* for BLF_width */
BLF_enable(fs->uifont_id, BLF_KERNING_DEFAULT);
UI_fontstyle_set(fs);
width = BLF_width(fs->uifont_id, str, BLF_DRAW_STR_DUMMY_MAX);
if (fs->kerning == 1)
BLF_disable(fs->uifont_id, BLF_KERNING_DEFAULT);
return width;
}
void UI_fontstyle_draw_ex(
const uiFontStyle *fs, const rcti *rect, const char *str,
size_t len, float *r_xofs, float *r_yofs)
{
float height;
int xofs = 0, yofs;
UI_fontstyle_set(fs);
height = BLF_ascender(fs->uifont_id);
yofs = ceil(0.5f * (BLI_rcti_size_y(rect) - height));
if (fs->align == UI_STYLE_TEXT_CENTER) {
xofs = floor(0.5f * (BLI_rcti_size_x(rect) - BLF_width(fs->uifont_id, str, len)));
/* don't center text if it chops off the start of the text, 2 gives some margin */
if (xofs < 2) {
xofs = 2;
}
}
else if (fs->align == UI_STYLE_TEXT_RIGHT) {
xofs = BLI_rcti_size_x(rect) - BLF_width(fs->uifont_id, str, len) - 0.1f * U.widget_unit;
}
/* clip is very strict, so we give it some space */
BLF_clipping(fs->uifont_id, rect->xmin - 2, rect->ymin - 4, rect->xmax + 1, rect->ymax + 4);
BLF_enable(fs->uifont_id, BLF_CLIPPING);
BLF_position(fs->uifont_id, rect->xmin + xofs, rect->ymin + yofs, 0.0f);
if (fs->shadow) {
BLF_enable(fs->uifont_id, BLF_SHADOW);
BLF_shadow(fs->uifont_id, fs->shadow, fs->shadowcolor, fs->shadowcolor, fs->shadowcolor, fs->shadowalpha);
BLF_shadow_offset(fs->uifont_id, fs->shadx, fs->shady);
}
if (fs->kerning == 1)
BLF_enable(fs->uifont_id, BLF_KERNING_DEFAULT);
BLF_draw(fs->uifont_id, str, len);
BLF_disable(fs->uifont_id, BLF_CLIPPING);
if (fs->shadow)
BLF_disable(fs->uifont_id, BLF_SHADOW);
if (fs->kerning == 1)
BLF_disable(fs->uifont_id, BLF_KERNING_DEFAULT);
*r_xofs = xofs;
*r_yofs = yofs;
}
float file_string_width(const char *str)
{
uiStyle *style = UI_style_get();
float width;
UI_fontstyle_set(&style->widget);
if (style->widget.kerning == 1) { /* for BLF_width */
BLF_enable(style->widget.uifont_id, BLF_KERNING_DEFAULT);
}
width = BLF_width(style->widget.uifont_id, str, BLF_DRAW_STR_DUMMY_MAX);
if (style->widget.kerning == 1) {
BLF_disable(style->widget.uifont_id, BLF_KERNING_DEFAULT);
}
return width;
}
/**
* Same as #UI_fontstyle_draw but draw a colored backdrop.
*/
void UI_fontstyle_draw_simple_backdrop(const uiFontStyle *fs,
float x,
float y,
const char *str,
const float col_fg[4],
const float col_bg[4])
{
if (fs->kerning == 1) {
BLF_enable(fs->uifont_id, BLF_KERNING_DEFAULT);
}
UI_fontstyle_set(fs);
{
const float width = BLF_width(fs->uifont_id, str, BLF_DRAW_STR_DUMMY_MAX);
const float height = BLF_height_max(fs->uifont_id);
const float decent = BLF_descender(fs->uifont_id);
const float margin = height / 4.0f;
/* backdrop */
float color[4] = {col_bg[0], col_bg[1], col_bg[2], 0.5f};
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_aa(true,
x - margin,
(y + decent) - margin,
x + width + margin,
(y + decent) + height + margin,
margin,
color);
}
BLF_position(fs->uifont_id, x, y, 0.0f);
BLF_color4fv(fs->uifont_id, col_fg);
BLF_draw(fs->uifont_id, str, BLF_DRAW_STR_DUMMY_MAX);
if (fs->kerning == 1) {
BLF_disable(fs->uifont_id, BLF_KERNING_DEFAULT);
}
}
/**
* Same as #UI_fontstyle_draw but draw a colored backdrop.
*/
void UI_fontstyle_draw_simple_backdrop(
const uiFontStyle *fs, float x, float y, const char *str,
const unsigned char fg[4], const unsigned char bg[4])
{
if (fs->kerning == 1)
BLF_enable(fs->uifont_id, BLF_KERNING_DEFAULT);
UI_fontstyle_set(fs);
{
const float width = BLF_width(fs->uifont_id, str, BLF_DRAW_STR_DUMMY_MAX);
const float height = BLF_height_max(fs->uifont_id);
const float decent = BLF_descender(fs->uifont_id);
const float margin = height / 4.0f;
/* backdrop */
glColor4ubv(bg);
UI_draw_roundbox_corner_set(UI_CNR_ALL | UI_RB_ALPHA);
UI_draw_roundbox(
x - margin,
(y + decent) - margin,
x + width + margin,
(y + decent) + height + margin,
margin);
glColor4ubv(fg);
}
BLF_position(fs->uifont_id, x, y, 0.0f);
BLF_draw(fs->uifont_id, str, BLF_DRAW_STR_DUMMY_MAX);
if (fs->kerning == 1)
BLF_disable(fs->uifont_id, BLF_KERNING_DEFAULT);
}
int UI_fontstyle_height_max(const uiFontStyle *fs)
{
UI_fontstyle_set(fs);
return BLF_height_max(fs->uifont_id);
}
float file_string_width(const char *str)
{
uiStyle *style = UI_style_get();
UI_fontstyle_set(&style->widget);
return BLF_width(style->widget.uifont_id, str, BLF_DRAW_STR_DUMMY_MAX);
}
void UI_fontstyle_draw_ex(const uiFontStyle *fs,
const rcti *rect,
const char *str,
const uchar col[4],
const struct uiFontStyleDraw_Params *fs_params,
size_t len,
float *r_xofs,
float *r_yofs)
{
int xofs = 0, yofs;
int font_flag = BLF_CLIPPING;
UI_fontstyle_set(fs);
/* set the flag */
if (fs->shadow) {
font_flag |= BLF_SHADOW;
const float shadow_color[4] = {
fs->shadowcolor, fs->shadowcolor, fs->shadowcolor, fs->shadowalpha};
BLF_shadow(fs->uifont_id, fs->shadow, shadow_color);
BLF_shadow_offset(fs->uifont_id, fs->shadx, fs->shady);
}
if (fs->kerning == 1) {
font_flag |= BLF_KERNING_DEFAULT;
}
if (fs_params->word_wrap == 1) {
font_flag |= BLF_WORD_WRAP;
}
BLF_enable(fs->uifont_id, font_flag);
if (fs_params->word_wrap == 1) {
/* draw from boundbox top */
yofs = BLI_rcti_size_y(rect) - BLF_height_max(fs->uifont_id);
}
else {
/* draw from boundbox center */
float height = BLF_ascender(fs->uifont_id) + BLF_descender(fs->uifont_id);
yofs = ceil(0.5f * (BLI_rcti_size_y(rect) - height));
}
if (fs_params->align == UI_STYLE_TEXT_CENTER) {
xofs = floor(0.5f * (BLI_rcti_size_x(rect) - BLF_width(fs->uifont_id, str, len)));
}
else if (fs_params->align == UI_STYLE_TEXT_RIGHT) {
xofs = BLI_rcti_size_x(rect) - BLF_width(fs->uifont_id, str, len);
}
yofs = MAX2(0, yofs);
xofs = MAX2(0, xofs);
BLF_clipping(fs->uifont_id, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
BLF_position(fs->uifont_id, rect->xmin + xofs, rect->ymin + yofs, 0.0f);
BLF_color4ubv(fs->uifont_id, col);
BLF_draw(fs->uifont_id, str, len);
BLF_disable(fs->uifont_id, font_flag);
*r_xofs = xofs;
*r_yofs = yofs;
}
