static void
draw(XSurface *surf, struct zr_command_queue *queue)
{
const struct zr_command *cmd;
zr_foreach_command(cmd, queue) {
switch (cmd->type) {
case ZR_COMMAND_NOP: break;
case ZR_COMMAND_SCISSOR: {
const struct zr_command_scissor *s = zr_command(scissor, cmd);
surface_scissor(surf, s->x, s->y, s->w, s->h);
} break;
case ZR_COMMAND_LINE: {
const struct zr_command_line *l = zr_command(line, cmd);
surface_draw_line(surf, l->begin.x, l->begin.y, l->end.x,
l->end.y, l->color.r, l->color.g, l->color.b);
} break;
case ZR_COMMAND_RECT: {
const struct zr_command_rect *r = zr_command(rect, cmd);
surface_draw_rect(surf, r->x, r->y, r->w, r->h,
r->color.r, r->color.g, r->color.b);
} break;
case ZR_COMMAND_CIRCLE: {
const struct zr_command_circle *c = zr_command(circle, cmd);
surface_draw_circle(surf, c->x, c->y, c->w, c->h,
c->color.r, c->color.g, c->color.b);
} break;
case ZR_COMMAND_TRIANGLE: {
const struct zr_command_triangle *t = zr_command(triangle, cmd);
surface_draw_triangle(surf, t->a.x, t->a.y, t->b.x, t->b.y,
t->c.x, t->c.y, t->color.r, t->color.g, t->color.b);
} break;
case ZR_COMMAND_TEXT: {
const struct zr_command_text *t = zr_command(text, cmd);
XWindow *win = t->font->userdata.ptr;
surface_draw_text(surf, win->font, t->x, t->y, t->w, t->h, (const char*)t->string,
(unsigned int)t->length, t->background.r, t->background.g, t->background.b,
t->foreground.r, t->foreground.g, t->foreground.b);
} break;
case ZR_COMMAND_IMAGE:
case ZR_COMMAND_CURVE:
case ZR_COMMAND_ARC:
default: break;
}
}
zr_command_queue_clear(queue);
}
static void
draw(NVGcontext *nvg, struct zr_command_queue *queue, int width, int height)
{
const struct zr_command *cmd;
glPushAttrib(GL_ENABLE_BIT|GL_COLOR_BUFFER_BIT);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glEnable(GL_TEXTURE_2D);
nvgBeginFrame(nvg, width, height, ((float)width/(float)height));
zr_foreach_command(cmd, queue) {
switch (cmd->type) {
case ZR_COMMAND_NOP: break;
case ZR_COMMAND_SCISSOR: {
const struct zr_command_scissor *s = zr_command(scissor, cmd);
nvgScissor(nvg, s->x, s->y, s->w, s->h);
} break;
case ZR_COMMAND_LINE: {
const struct zr_command_line *l = zr_command(line, cmd);
nvgBeginPath(nvg);
nvgMoveTo(nvg, l->begin.x, l->begin.y);
nvgLineTo(nvg, l->end.x, l->end.y);
nvgFillColor(nvg, nvgRGBA(l->color.r, l->color.g, l->color.b, l->color.a));
nvgFill(nvg);
} break;
case ZR_COMMAND_CURVE: {
const struct zr_command_curve *q = zr_command(curve, cmd);
nvgBeginPath(nvg);
nvgMoveTo(nvg, q->begin.x, q->begin.y);
nvgBezierTo(nvg, q->ctrl[0].x, q->ctrl[0].y, q->ctrl[1].x, q->ctrl[1].y, q->end.x, q->end.y);
nvgStrokeColor(nvg, nvgRGBA(q->color.r, q->color.g, q->color.b, q->color.a));
nvgStroke(nvg);
} break;
case ZR_COMMAND_RECT: {
const struct zr_command_rect *r = zr_command(rect, cmd);
nvgBeginPath(nvg);
nvgRoundedRect(nvg, r->x, r->y, r->w, r->h, r->rounding);
nvgFillColor(nvg, nvgRGBA(r->color.r, r->color.g, r->color.b, r->color.a));
nvgFill(nvg);
} break;
case ZR_COMMAND_CIRCLE: {
const struct zr_command_circle *c = zr_command(circle, cmd);
nvgBeginPath(nvg);
nvgCircle(nvg, c->x + (c->w/2.0f), c->y + c->w/2.0f, c->w/2.0f);
nvgFillColor(nvg, nvgRGBA(c->color.r, c->color.g, c->color.b, c->color.a));
nvgFill(nvg);
} break;
case ZR_COMMAND_TRIANGLE: {
const struct zr_command_triangle *t = zr_command(triangle, cmd);
nvgBeginPath(nvg);
nvgMoveTo(nvg, t->a.x, t->a.y);
nvgLineTo(nvg, t->b.x, t->b.y);
nvgLineTo(nvg, t->c.x, t->c.y);
nvgLineTo(nvg, t->a.x, t->a.y);
nvgFillColor(nvg, nvgRGBA(t->color.r, t->color.g, t->color.b, t->color.a));
nvgFill(nvg);
} break;
case ZR_COMMAND_TEXT: {
const struct zr_command_text *t = zr_command(text, cmd);
nvgBeginPath(nvg);
nvgRoundedRect(nvg, t->x, t->y, t->w, t->h, 0);
nvgFillColor(nvg, nvgRGBA(t->background.r, t->background.g,
t->background.b, t->background.a));
nvgFill(nvg);
nvgBeginPath(nvg);
nvgFillColor(nvg, nvgRGBA(t->foreground.r, t->foreground.g,
t->foreground.b, t->foreground.a));
nvgTextAlign(nvg, NVG_ALIGN_MIDDLE);
nvgText(nvg, t->x, t->y + t->h * 0.5f, t->string, &t->string[t->length]);
nvgFill(nvg);
} break;
case ZR_COMMAND_IMAGE: {
const struct zr_command_image *i = zr_command(image, cmd);
NVGpaint imgpaint;
imgpaint = nvgImagePattern(nvg, i->x, i->y, i->w, i->h, 0, i->img.handle.id, 1.0f);
nvgBeginPath(nvg);
nvgRoundedRect(nvg, i->x, i->y, i->w, i->h, 0);
nvgFillPaint(nvg, imgpaint);
nvgFill(nvg);
} break;
case ZR_COMMAND_ARC:
default: break;
}
}
zr_command_queue_clear(queue);
nvgResetScissor(nvg);
nvgEndFrame(nvg);
glPopAttrib();
}
