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don't draw if the window is not visible.

This commit is contained in:
Aurélien Aptel 2010-09-11 16:05:57 +02:00
parent d3440e1e0f
commit 047aa071f3
1 changed files with 25 additions and 4 deletions
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29
st.c
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@ -115,6 +115,7 @@ typedef struct {
int ch; /* char height */
int cw; /* char width */
int hasfocus;
int vis; /* is visible */
} XWindow;
typedef struct {
@ -187,6 +188,8 @@ static void xloadcols(void);
static void xseturgency(int);
static void expose(XEvent *);
static void visibility(XEvent *);
static void unmap(XEvent *);
static char* kmap(KeySym);
static void kpress(XEvent *);
static void resize(XEvent *);
@ -198,8 +201,10 @@ static void bmotion(XEvent *);
static void (*handler[LASTEvent])(XEvent *) = {
[KeyPress] = kpress,
[Expose] = expose,
[ConfigureNotify] = resize,
[VisibilityNotify] = visibility,
[UnmapNotify] = unmap,
[Expose] = expose,
[FocusIn] = focus,
[FocusOut] = focus,
[MotionNotify] = bmotion,
@ -1211,9 +1216,9 @@ xinit(void) {
attrs.background_pixel = dc.col[DefaultBG];
attrs.border_pixel = dc.col[DefaultBG];
attrs.bit_gravity = NorthWestGravity;
attrs.event_mask = ExposureMask | KeyPressMask
| StructureNotifyMask | FocusChangeMask | PointerMotionMask
| ButtonPressMask | ButtonReleaseMask;
attrs.event_mask = FocusChangeMask | KeyPressMask
| ExposureMask | VisibilityChangeMask | StructureNotifyMask
| PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
attrs.colormap = xw.cmap;
xw.win = XCreateWindow(xw.dis, XRootWindow(xw.dis, xw.scr), 0, 0,
@ -1321,6 +1326,9 @@ draw(int redraw_all) {
Glyph base, new;
char buf[DRAW_BUF_SIZ];
if(!xw.vis)
return;
xclear(0, 0, term.col-1, term.row-1);
for(y = 0; y < term.row; y++) {
base = term.line[y][0];
@ -1357,6 +1365,19 @@ expose(XEvent *ev) {
draw(SCREEN_REDRAW);
}
void
visibility(XEvent *ev) {
XVisibilityEvent *e = &ev->xvisibility;
/* XXX if this goes from 0 to 1, need a full redraw for next Expose,
* not just a buf copy */
xw.vis = e->state != VisibilityFullyObscured;
}
void
unmap(XEvent *ev) {
xw.vis = 0;
}
void
xseturgency(int add) {
XWMHints *h = XGetWMHints(xw.dis, xw.win);