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#include <u.h>
#include <libc.h>
#include <thread.h>
#include <draw.h>
#include <mouse.h>
#include <keyboard.h>
#include "guifs.h"
Mousectl *mouse;
Keyboardctl *keyboard;
Channel *updatechan;
Channel *mkcolourchan;
Channel *newcolourchan;
void
drawgui(GuiElement *g)
{
rlock(&g->lock);
GuiSpec spec = guispecs[g->type];
if(memcmp(&g->rect, &g->border, sizeof(Rectangle)) != 0 && Dx(g->border) > 0 && Dy(g->border) > 0){
/* draw the border first */
Image *bc = getprop(g, Pbordercolour).colour->image;
Rectangle r;
/* top part */
r.min.x = g->border.min.x;
r.min.y = g->border.min.y;
r.max.x = g->border.max.x;
r.max.y = g->rect.min.y;
draw(screen, r, bc, nil, ZP);
/* right part */
r.min.x = g->rect.max.x;
r.min.y = g->rect.min.y;
r.max.x = g->border.max.x;
r.max.y = g->border.max.y;
draw(screen, r, bc, nil, ZP);
/* bottom part */
r.min.x = g->border.min.x;
r.min.y = g->rect.max.y;
r.max.x = g->border.max.x;
r.max.y = g->border.max.y;
draw(screen, r, bc, nil, ZP);
/* left part */
r.min.x = g->border.min.x;
r.min.y = g->border.min.y;
r.max.x = g->rect.min.x;
r.max.y = g->border.max.y;
draw(screen, r, bc, nil, ZP);
}
if(Dx(g->rect) > 0 && Dy(g->rect) > 0){
spec.draw(g);
for(int i = 0; i < g->nchildren; i++)
drawgui(g->children[i]);
}
runlock(&g->lock);
}
void
drawcontainer(GuiElement *g)
{
Image *bg = getprop(g, Pbackground).colour->image;
draw(screen, g->rect, bg, nil, ZP);
}
Colour *
mkcolour(ulong c)
{
Colour *res = nil;
send(mkcolourchan, &c);
recv(newcolourchan, &res);
return res;
}
void
updategui(int new)
{
/* Trigger a call to resized by sending a message */
send(updatechan, &new);
}
void
resized(int new)
{
if(new && getwindow(display, Refnone) < 0)
sysfatal("can't reattach to window: %r");
if(root != nil){
layout(root, screen->r);
drawgui(root);
flushimage(display, 1);
}
}
void
guiproc(void *)
{
int i;
ulong c;
if(initdraw(nil, nil, "guifs") < 0)
sysfatal("initdraw failed");
if((mouse = initmouse(nil, screen)) == nil)
sysfatal("initmouse failed");
if((keyboard = initkeyboard(nil)) == nil)
sysfatal("initkeyboard failed");
enum {
Aupdategui,
Aresize,
Amouse,
Amkcolour,
Aaltend,
};
Alt a[] = {
[Aupdategui] =
{updatechan, &i, CHANRCV},
[Aresize] =
{mouse->resizec, nil, CHANRCV},
[Amouse] =
{mouse->c, &mouse->Mouse, CHANRCV},
[Amkcolour] =
{mkcolourchan, &c, CHANRCV},
[Aaltend] =
{nil, nil, CHANEND},
};
while(1){
int which = alt(a);
switch(which){
case Aupdategui:
resized(i);
break;
case Aresize:
resized(1);
break;
case Amouse:
break;
case Amkcolour:
{
Colour *col = emalloc(sizeof(Colour));
col->image = allocimage(display, Rect(0,0,1,1), screen->chan, 1, c);
col->code = c;
send(newcolourchan, &col);
}
}
}
}
void
initgraphics(void)
{
updatechan = chancreate(sizeof(int), 0);
mkcolourchan = chancreate(sizeof(ulong), 0);
newcolourchan = chancreate(sizeof(Colour *), 0);
proccreate(guiproc, nil, mainstacksize);
updategui(1);
}
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