static void
draw(NVGcontext *nvg, struct gui_command_queue *queue, int width, int height)
{
const struct gui_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));
gui_foreach_command(cmd, queue) {
switch (cmd->type) {
case GUI_COMMAND_NOP: break;
case GUI_COMMAND_SCISSOR: {
const struct gui_command_scissor *s = gui_command(scissor, cmd);
nvgScissor(nvg, s->x, s->y, s->w, s->h);
} break;
case GUI_COMMAND_LINE: {
const struct gui_command_line *l = gui_command(line, cmd);
draw_line(nvg, l->begin.x, l->begin.y, l->end.x, l->end.y, l->color);
} break;
case GUI_COMMAND_RECT: {
const struct gui_command_rect *r = gui_command(rect, cmd);
draw_rect(nvg, r->x, r->y, r->w, r->h, r->rounding, r->color);
} break;
case GUI_COMMAND_CIRCLE: {
const struct gui_command_circle *c = gui_command(circle, cmd);
draw_circle(nvg, c->x, c->y, (float)c->w / 2.0f, c->color);
} break;
case GUI_COMMAND_TRIANGLE: {
const struct gui_command_triangle *t = gui_command(triangle, cmd);
draw_triangle(nvg, t->a.x, t->a.y, t->b.x, t->b.y, t->c.x,
t->c.y, t->color);
} break;
case GUI_COMMAND_TEXT: {
const struct gui_command_text *t = gui_command(text, cmd);
draw_text(nvg, t->x, t->y, t->w, t->h, t->foreground, t->background, t->string, t->length);
} break;
case GUI_COMMAND_IMAGE: {
const struct gui_command_image *i = gui_command(image, cmd);
draw_image(nvg, i->img.handle, i->x, i->y, i->w, i->h, 1);
} break;
case GUI_COMMAND_MAX:
default: break;
}
}
gui_command_queue_clear(queue);
nvgResetScissor(nvg);
nvgEndFrame(nvg);
glPopAttrib();
}
static void
execute(XSurface *surf, struct gui_command_buffer *buffer)
{
const struct gui_command *cmd;
gui_foreach_command(cmd, buffer) {
switch (cmd->type) {
case GUI_COMMAND_NOP: break;
case GUI_COMMAND_SCISSOR: {
const struct gui_command_scissor *s = gui_command(scissor, cmd);
surface_scissor(surf, s->x, s->y, s->w, s->h);
} break;
case GUI_COMMAND_LINE: {
const struct gui_command_line *l = gui_command(line, cmd);
surface_draw_line(surf, l->begin[0], l->begin[1], l->end[0],
l->end[1], l->color.r, l->color.g, l->color.b);
} break;
case GUI_COMMAND_RECT: {
const struct gui_command_rect *r = gui_command(rect, cmd);
if (!r->r) {
surface_draw_rect(surf, r->x, r->y, r->w, r->h,
r->color.r, r->color.g, r->color.b);
} else {
surface_draw_rounded_rect(surf, r->x, r->y, r->w, r->h, r->r,
r->color.r, r->color.g, r->color.b);
}
} break;
case GUI_COMMAND_CIRCLE: {
const struct gui_command_circle *c = gui_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 GUI_COMMAND_TRIANGLE: {
const struct gui_command_triangle *t = gui_command(triangle, cmd);
surface_draw_triangle(surf, t->a[0], t->a[1], t->b[0], t->b[1],
t->c[0], t->c[1], t->color.r, t->color.g, t->color.b);
} break;
case GUI_COMMAND_TEXT: {
const struct gui_command_text *t = gui_command(text, cmd);
XWindow *win = t->font.ptr;
surface_draw_text(surf, win->font, t->x, t->y, t->w, t->h, (const char*)t->string,
t->length, t->bg.r, t->bg.g, t->bg.b, t->fg.r, t->fg.g, t->fg.b);
} break;
case GUI_COMMAND_IMAGE:
default: break;
}
}
}