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xlib: add delta_time_seconds

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PROP 65 2024-08-29 03:09:28 +00:00 committed by GitHub
parent b3b400895d
commit d043803932
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GPG Key ID: B5690EEEBB952194
1 changed files with 26 additions and 20 deletions
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46
demo/x11_xft/nuklear_xlib.h
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@ -76,10 +76,10 @@ NK_API void nk_xfont_del(Display *dpy, XFont *font);
#ifndef NK_X11_DOUBLE_CLICK_LO
#define NK_X11_DOUBLE_CLICK_LO 20
#define NK_X11_DOUBLE_CLICK_LO 0.02
#endif
#ifndef NK_X11_DOUBLE_CLICK_HI
#define NK_X11_DOUBLE_CLICK_HI 200
#define NK_X11_DOUBLE_CLICK_HI 0.20
#endif
typedef struct XSurface XSurface;
@ -131,15 +131,16 @@ static struct {
Visual *vis;
Colormap cmap;
#endif
long last_button_click;
double last_button_click;
double time_of_last_frame;
} xlib;
NK_INTERN long
nk_timestamp(void)
NK_INTERN double
nk_get_time(void)
{
struct timeval tv;
if (gettimeofday(&tv, NULL) < 0) return 0;
return (long)((long)tv.tv_sec * 1000 + (long)tv.tv_usec/1000);
return ((double)tv.tv_sec + (double)tv.tv_usec/1000000);
}
NK_INTERN unsigned long
@ -182,9 +183,9 @@ nk_xsurf_resize(XSurface *surf, unsigned int w, unsigned int h)
surf->drawable = XCreatePixmap(surf->dpy, surf->root, w, h,
(unsigned int)DefaultDepth(surf->dpy, surf->screen));
#ifdef NK_XLIB_USE_XFT
XftDrawChange(surf->ftdraw, surf->drawable);
XftDrawChange(surf->ftdraw, surf->drawable);
#endif
return;
return;
}
NK_INTERN void
@ -198,9 +199,9 @@ nk_xsurf_scissor(XSurface *surf, float x, float y, float w, float h)
XSetClipRectangles(surf->dpy, surf->gc, 0, 0, &clip_rect, 1, Unsorted);
#ifdef NK_XLIB_USE_XFT
XftDrawSetClipRectangles(surf->ftdraw, 0, 0, &clip_rect, 1);
XftDrawSetClipRectangles(surf->ftdraw, 0, 0, &clip_rect, 1);
#endif
return;
return;
}
NK_INTERN void
@ -465,13 +466,13 @@ nk_xsurf_draw_text(XSurface *surf, short x, short y, const char *text, int len,
xrc.alpha = cfg.a * 257;
XftColorAllocValue(surf->dpy, xlib.vis, xlib.cmap, &xrc, &color);
XftDrawStringUtf8(surf->ftdraw, &color, font->ft, tx, ty, (FcChar8*)text, len);
XftColorFree(surf->dpy, xlib.vis, xlib.cmap, &color);
XftColorFree(surf->dpy, xlib.vis, xlib.cmap, &color);
#else
XSetForeground(surf->dpy, surf->gc, fg);
if(font->set) XmbDrawString(surf->dpy,surf->drawable, font->set, surf->gc, tx, ty, (const char*)text, (int)len);
else XDrawString(surf->dpy, surf->drawable, surf->gc, tx, ty, (const char*)text, (int)len);
#endif
return;
return;
}
@ -610,7 +611,7 @@ NK_INTERN void
nk_xsurf_del(XSurface *surf)
{
#ifdef NK_XLIB_USE_XFT
XftDrawDestroy(surf->ftdraw);
XftDrawDestroy(surf->ftdraw);
#endif
XFreePixmap(surf->dpy, surf->drawable);
XFreeGC(surf->dpy, surf->gc);
@ -674,8 +675,8 @@ nk_xfont_get_text_width(nk_handle handle, float height, const char *text, int le
NK_UNUSED(height);
if(!font || !text)
return 0;
if(!font || !text)
return 0;
XftTextExtentsUtf8(xlib.dpy, font->ft, (FcChar8*)text, len, &g);
return g.xOff;
@ -684,8 +685,8 @@ nk_xfont_get_text_width(nk_handle handle, float height, const char *text, int le
NK_UNUSED(height);
if(!font || !text)
return 0;
if(!font || !text)
return 0;
if(font->set) {
XmbTextExtents(font->set, (const char*)text, len, NULL, &r);
@ -702,7 +703,7 @@ nk_xfont_del(Display *dpy, XFont *font)
{
if(!font) return;
#ifdef NK_XLIB_USE_XFT
XftFontClose(dpy, font->ft);
XftFontClose(dpy, font->ft);
#else
if(font->set)
XFreeFontSet(dpy, font->set);
@ -747,6 +748,7 @@ nk_xlib_init(XFont *xfont, Display *dpy, int screen, Window root,
XFreePixmap(dpy, blank);}
xlib.surf = nk_xsurf_create(screen, w, h);
nk_init_default(&xlib.ctx, font);
xlib.time_of_last_frame = nk_get_time();
return &xlib.ctx;
}
@ -878,10 +880,10 @@ nk_xlib_handle_event(Display *dpy, int screen, Window win, XEvent *evt)
const int x = evt->xbutton.x, y = evt->xbutton.y;
if (evt->xbutton.button == Button1) {
if (down) { /* Double-Click Button handler */
long dt = nk_timestamp() - xlib.last_button_click;
float dt = nk_get_time() - xlib.last_button_click;
if (dt > NK_X11_DOUBLE_CLICK_LO && dt < NK_X11_DOUBLE_CLICK_HI)
nk_input_button(ctx, NK_BUTTON_DOUBLE, x, y, nk_true);
xlib.last_button_click = nk_timestamp();
xlib.last_button_click = nk_get_time();
} else nk_input_button(ctx, NK_BUTTON_DOUBLE, x, y, nk_false);
nk_input_button(ctx, NK_BUTTON_LEFT, x, y, down);
} else if (evt->xbutton.button == Button2)
@ -990,6 +992,10 @@ nk_xlib_render(Drawable screen, struct nk_color clear)
struct nk_context *ctx = &xlib.ctx;
XSurface *surf = xlib.surf;
double now = nk_get_time();
xlib.ctx.delta_time_seconds = now - xlib.time_of_last_frame;
xlib.time_of_last_frame = now;
nk_xsurf_clear(xlib.surf, nk_color_from_byte(&clear.r));
nk_foreach(cmd, &xlib.ctx)
{