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UI: word-wrap support for tooltips 

Tooltips will automatically wrap when exceeding UI_TIP_MAXWIDTH.
This commit is contained in:
Campbell Barton 2015-09-18 20:21:25 +10:00
parent f2341f8296
commit d435b0d24d
Notes: blender-bot 2023-02-14 08:39:18 +01:00 
Referenced by issue #46154, Text inside buttons vertically misaligned
3 changed files with 66 additions and 27 deletions
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83
source/blender/editors/interface/interface_regions.c
View File

@ -155,13 +155,14 @@ static void ui_region_temp_remove(bContext *C, bScreen *sc, ARegion *ar)
#define UI_TIP_PAD_FAC 1.3f
#define UI_TIP_PADDING (int)(UI_TIP_PAD_FAC * UI_UNIT_Y)
#define UI_TIP_MAXWIDTH 600
#define MAX_TOOLTIP_LINES 8
typedef struct uiTooltipData {
rcti bbox;
uiFontStyle fstyle;
char lines[MAX_TOOLTIP_LINES][512];
char header[512], active_info[512];
char lines[MAX_TOOLTIP_LINES][2048];
char header[2048], active_info[2048];
struct {
enum {
UI_TIP_STYLE_NORMAL = 0,
@ -178,6 +179,14 @@ typedef struct uiTooltipData {
} color_id : 4;
int is_pad : 1;
} format[MAX_TOOLTIP_LINES];
struct {
unsigned int width;
unsigned int lines;
} line_geom[MAX_TOOLTIP_LINES];
int wrap_width;
int totline;
int toth, lineh;
} uiTooltipData;
@ -257,12 +266,14 @@ static void ui_tooltip_region_draw_cb(const bContext *UNUSED(C), ARegion *ar)
rgb_tint(alert_color, 0.0f, 0.8f, tone_bg, 0.1f); /* red */
/* draw text */
BLF_wordwrap(data->fstyle.uifont_id, data->wrap_width);
BLF_wordwrap(blf_mono_font, data->wrap_width);
bbox.xmin += 0.5f * pad_px; /* add padding to the text */
bbox.ymax -= 0.5f * (BLI_rcti_size_y(&bbox) - data->toth);
bbox.ymin = bbox.ymax - data->lineh;
bbox.ymax -= 0.25f * pad_px;
for (i = 0; i < data->totline; i++) {
bbox.ymin = bbox.ymax - (data->lineh * data->line_geom[i].lines);
if (data->format[i].style == UI_TIP_STYLE_HEADER) {
/* draw header and active data (is done here to be able to change color) */
uiFontStyle fstyle_header = data->fstyle;
@ -273,12 +284,13 @@ static void ui_tooltip_region_draw_cb(const bContext *UNUSED(C), ARegion *ar)
fstyle_header.shadowcolor = rgb_to_grayscale(tip_colors[UI_TIP_LC_MAIN]);
fstyle_header.shadx = fstyle_header.shady = 0;
fstyle_header.shadowalpha = 1.0f;
fstyle_header.word_wrap = true;
UI_fontstyle_set(&fstyle_header);
glColor3fv(tip_colors[UI_TIP_LC_MAIN]);
UI_fontstyle_draw(&fstyle_header, &bbox, data->header);
xofs = BLF_width(fstyle_header.uifont_id, data->header, sizeof(data->header));
xofs = data->line_geom[i].width;
bbox.xmin += xofs;
glColor3fv(tip_colors[UI_TIP_LC_ACTIVE]);
@ -289,6 +301,7 @@ static void ui_tooltip_region_draw_cb(const bContext *UNUSED(C), ARegion *ar)
else if (data->format[i].style == UI_TIP_STYLE_MONO) {
uiFontStyle fstyle_mono = data->fstyle;
fstyle_mono.uifont_id = blf_mono_font;
fstyle_mono.word_wrap = true;
UI_fontstyle_set(&fstyle_mono);
/* XXX, needed because we dont have mono in 'U.uifonts' */
@ -297,22 +310,26 @@ static void ui_tooltip_region_draw_cb(const bContext *UNUSED(C), ARegion *ar)
UI_fontstyle_draw(&fstyle_mono, &bbox, data->lines[i]);
}
else {
uiFontStyle fstyle_normal = data->fstyle;
BLI_assert(data->format[i].style == UI_TIP_STYLE_NORMAL);
fstyle_normal.word_wrap = true;
/* draw remaining data */
UI_fontstyle_set(&data->fstyle);
UI_fontstyle_set(&fstyle_normal);
glColor3fv(tip_colors[data->format[i].color_id]);
UI_fontstyle_draw(&data->fstyle, &bbox, data->lines[i]);
}
bbox.ymax -= data->lineh * data->line_geom[i].lines;
if ((i + 1 != data->totline) && data->format[i + 1].is_pad) {
bbox.ymax -= data->lineh * UI_TIP_PAD_FAC;
bbox.ymin -= data->lineh * UI_TIP_PAD_FAC;
}
else {
bbox.ymax -= data->lineh;
bbox.ymin -= data->lineh;
bbox.ymax -= data->lineh * (UI_TIP_PAD_FAC - 1);
}
}
BLF_disable(data->fstyle.uifont_id, BLF_WORD_WRAP);
BLF_disable(blf_mono_font, BLF_WORD_WRAP);
if (multisample_enabled)
glEnable(GL_MULTISAMPLE_ARB);
}
@ -338,10 +355,11 @@ ARegion *ui_tooltip_create(bContext *C, ARegion *butregion, uiBut *but)
char buf[512];
/* aspect values that shrink text are likely unreadable */
const float aspect = min_ff(1.0f, but->block->aspect);
float fonth, fontw;
int winx, ofsx, ofsy, w = 0, h, i;
int fonth, fontw;
int winx, ofsx, ofsy, h, i;
rctf rect_fl;
rcti rect_i;
int font_flag = 0;
uiStringInfo but_tip = {BUT_GET_TIP, NULL};
uiStringInfo enum_label = {BUT_GET_RNAENUM_LABEL, NULL};
@ -578,6 +596,17 @@ ARegion *ui_tooltip_create(bContext *C, ARegion *butregion, uiBut *but)
UI_fontstyle_set(&data->fstyle);
data->wrap_width = min_ii(UI_TIP_MAXWIDTH * U.pixelsize / aspect, WM_window_pixels_x(win) - (UI_TIP_PADDING * 2));
font_flag |= BLF_WORD_WRAP;
if (data->fstyle.kerning == 1) {
font_flag |= BLF_KERNING_DEFAULT;
}
BLF_enable(data->fstyle.uifont_id, font_flag);
BLF_enable(blf_mono_font, font_flag);
BLF_wordwrap(data->fstyle.uifont_id, data->wrap_width);
BLF_wordwrap(blf_mono_font, data->wrap_width);
/* these defines tweaked depending on font */
#define TIP_BORDER_X (16.0f / aspect)
#define TIP_BORDER_Y (6.0f / aspect)
@ -585,33 +614,41 @@ ARegion *ui_tooltip_create(bContext *C, ARegion *butregion, uiBut *but)
h = BLF_height_max(data->fstyle.uifont_id);
for (i = 0, fontw = 0, fonth = 0; i < data->totline; i++) {
struct ResultBLF info;
int w, w_other = 0;
if (data->format[i].style == UI_TIP_STYLE_HEADER) {
w = BLF_width(data->fstyle.uifont_id, data->header, sizeof(data->header));
w = BLF_width_ex(data->fstyle.uifont_id, data->header, sizeof(data->header), &info);
if (enum_label.strinfo)
w += BLF_width(data->fstyle.uifont_id, data->active_info, sizeof(data->active_info));
w_other = BLF_width(data->fstyle.uifont_id, data->active_info, sizeof(data->active_info));
}
else if (data->format[i].style == UI_TIP_STYLE_MONO) {
BLF_size(blf_mono_font, data->fstyle.points * U.pixelsize, U.dpi);
w = BLF_width(blf_mono_font, data->lines[i], sizeof(data->lines[i]));
w = BLF_width_ex(blf_mono_font, data->lines[i], sizeof(data->lines[i]), &info);
}
else {
BLI_assert(data->format[i].style == UI_TIP_STYLE_NORMAL);
w = BLF_width(data->fstyle.uifont_id, data->lines[i], sizeof(data->lines[i]));
w = BLF_width_ex(data->fstyle.uifont_id, data->lines[i], sizeof(data->lines[i]), &info);
}
fontw = max_ff(fontw, (float)w);
fontw = max_ii(fontw, w + w_other);
fonth += h * info.lines;
if ((i + 1 != data->totline) && data->format[i + 1].is_pad) {
fonth += h * UI_TIP_PAD_FAC;
}
else {
fonth += h;
fonth += h * (UI_TIP_PAD_FAC - 1);
}
data->line_geom[i].lines = info.lines;
data->line_geom[i].width = w;
}
//fontw *= aspect;
BLF_disable(data->fstyle.uifont_id, font_flag);
BLF_disable(blf_mono_font, font_flag);
ar->regiondata = data;
data->toth = fonth;

7
source/blender/editors/interface/interface_style.c
View File

@ -152,7 +152,6 @@ 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;
int font_flag = BLF_CLIPPING;
@ -167,11 +166,13 @@ void UI_fontstyle_draw_ex(
if (fs->kerning == 1) {
font_flag |= BLF_KERNING_DEFAULT;
}
if (fs->word_wrap == 1) {
font_flag |= BLF_WORD_WRAP;
}
BLF_enable(fs->uifont_id, font_flag);
height = BLF_ascender(fs->uifont_id);
yofs = ceil(0.5f * (BLI_rcti_size_y(rect) - height));
yofs = BLI_rcti_size_y(rect) - BLF_height_max(fs->uifont_id);
if (fs->align == UI_STYLE_TEXT_CENTER) {
xofs = floor(0.5f * (BLI_rcti_size_x(rect) - BLF_width(fs->uifont_id, str, len)));

3
source/blender/makesdna/DNA_userdef_types.h
View File

@ -74,7 +74,8 @@ typedef struct uiFontStyle {
short uifont_id; /* saved in file, 0 is default */
short points; /* actual size depends on 'global' dpi */
short kerning; /* unfitted or default kerning value. */
char pad[6];
char word_wrap; /* enable word-wrap when drawing */
char pad[5];
short italic, bold; /* style hint */
short shadow; /* value is amount of pixels blur */
short shadx, shady; /* shadow offset in pixels */