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/* -*- c-basic-offset:2; tab-width:2; indent-tabs-mode:nil -*- */
#include "../ui_window.h"
#include <X11/Xft/Xft.h>
#include <pobl/bl_mem.h> /* alloca */
#define ui_color_to_xft(xcolor) _ui_color_to_xft(alloca(sizeof(XftColor)), (xcolor))
/* --- static functions --- */
static XftColor* _ui_color_to_xft(XftColor *xftcolor, ui_color_t *xcolor) {
xftcolor->pixel = xcolor->pixel;
xftcolor->color.red = (xcolor->red << 8) + xcolor->red;
xftcolor->color.green = (xcolor->green << 8) + xcolor->green;
xftcolor->color.blue = (xcolor->blue << 8) + xcolor->blue;
xftcolor->color.alpha = (xcolor->alpha << 8) + xcolor->alpha;
return xftcolor;
}
/* --- global functions --- */
int ui_window_set_use_xft(ui_window_t *win, int use_xft) {
if (use_xft) {
if ((win->xft_draw = XftDrawCreate(win->disp->display, win->my_window, win->disp->visual,
win->disp->colormap))) {
return 1;
}
} else {
XftDrawDestroy(win->xft_draw);
win->xft_draw = NULL;
return 1;
}
return 0;
}
void ui_window_xft_draw_string8(ui_window_t *win, ui_font_t *font, ui_color_t *fg_color, int x,
int y, u_char *str, size_t len) {
XftColor *xftcolor = ui_color_to_xft(fg_color);
ef_charset_t cs = FONT_CS(font->id);
if (IS_ISCII(cs)) {
/*
* Font name: "BN-TTDurga"
* FT_ENCODING: _APPLE_ROMAN _UNICODE
* 0x86 => 0x2020
* 0x99 => 0x2122
*
* It seems impossible to make XftDrawString8() use FT_ENCODING_APPLE_ROMAN,
* so both FT_Select_Charmap() and FT_Get_Char_Index() are used to show ISCII.
*/
FT_Face face = XftLockFace(font->xft_font);
FT_UInt *glyphs = alloca(sizeof(*glyphs) * len);
if (glyphs) {
size_t count;
/* Call FT_Select_Charmap() every time to keep FT_ENCODING_APPLE_ROMAN. */
FT_Select_Charmap(face, FT_ENCODING_APPLE_ROMAN);
for (count = 0; count < len; count++) {
glyphs[count] = FT_Get_Char_Index(face, str[count]);
}
XftDrawGlyphs(win->xft_draw, xftcolor, font->xft_font, x + font->x_off + win->hmargin,
y + win->vmargin, glyphs, len);
if (font->double_draw_gap) {
XftDrawGlyphs(win->xft_draw, xftcolor, font->xft_font,
x + font->x_off + win->hmargin + font->double_draw_gap, y + win->vmargin,
glyphs, len);
}
}
XftUnlockFace(font->xft_font);
} else {
#ifdef USE_OT_LAYOUT
if (!font->use_ot_layout /* || font->ot_font == NULL */)
#endif
{
/* Removing trailing spaces. */
while (1) {
if (len == 0) {
return;
}
if (*(str + len - 1) == ' ') {
len--;
} else {
break;
}
}
}
XftDrawString8(win->xft_draw, xftcolor, font->xft_font, x + font->x_off + win->hmargin,
y + win->vmargin, str, len);
if (font->double_draw_gap) {
XftDrawString8(win->xft_draw, xftcolor, font->xft_font,
x + font->x_off + win->hmargin + font->double_draw_gap, y + win->vmargin,
str, len);
}
}
}
void ui_window_xft_draw_string32(ui_window_t *win, ui_font_t *font, ui_color_t *fg_color, int x,
int y, FcChar32* str, u_int len) {
XftColor *xftcolor;
xftcolor = ui_color_to_xft(fg_color);
#ifdef USE_OT_LAYOUT
if (font->use_ot_layout /* && font->ot_font */) {
XftDrawGlyphs(win->xft_draw, xftcolor, font->xft_font, x + font->x_off + win->hmargin,
y + win->vmargin, str, len);
} else
#endif
{
XftDrawString32(win->xft_draw, xftcolor, font->xft_font, x + font->x_off + win->hmargin,
y + win->vmargin, str, len);
}
if (font->double_draw_gap) {
#ifdef USE_OT_LAYOUT
if (font->use_ot_layout /* && font->ot_font */) {
XftDrawGlyphs(win->xft_draw, xftcolor, font->xft_font, x + font->x_off + win->hmargin,
y + win->vmargin, str, len);
} else
#endif
{
XftDrawString32(win->xft_draw, xftcolor, font->xft_font,
x + font->x_off + win->hmargin + font->double_draw_gap, y + win->vmargin,
str, len);
}
}
}
void xft_set_clip(ui_window_t *win, int x, int y, u_int width, u_int height) {
XRectangle rect;
rect.x = 0;
rect.y = 0;
rect.width = width;
rect.height = height;
XftDrawSetClipRectangles(win->xft_draw, x, y, &rect, 1);
}
void xft_unset_clip(ui_window_t *win) {
XRectangle rect;
rect.x = 0;
rect.y = 0;
rect.width = ACTUAL_WIDTH(win);
rect.height = ACTUAL_HEIGHT(win);
XftDrawSetClipRectangles(win->xft_draw, 0, 0, &rect, 1);
}
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