X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;f=st.c;h=99ab085f173aa1e064880b2aa65b25394ab7202b;hb=6faedce53a8de8a81da1ba045ffbc2b7603128cd;hp=261612fb8d4a38f64a7504075a85b4d407d4a259;hpb=273d4ba938dc6bf7edb2b1154ea36c19bfcd22d1;p=st.git

diff --git a/st.c b/st.c
index 261612f..99ab085 100644
--- a/st.c
+++ b/st.c
@@ -104,6 +104,7 @@ typedef struct {
 /* Purely graphic info */
 typedef struct {
 	Display* dis;
+	Colormap cmap;
 	Window win;
 	Pixmap buf;
 	int scr;
@@ -113,7 +114,8 @@ typedef struct {
 	int bufh; /* pixmap height */
 	int ch; /* char height */
 	int cw; /* char width  */
-	int hasfocus;
+	int focus;
+	int vis; /* is visible */
 } XWindow; 
 
 typedef struct {
@@ -186,6 +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 *);
@@ -197,8 +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,
@@ -1037,7 +1043,7 @@ tputc(char c) {
 			tnewline();
 			break;
 		case '\a':
-			if(!xw.hasfocus)
+			if(!xw.focus)
 				xseturgency(1);
 			break;
 		case '\033':
@@ -1121,11 +1127,10 @@ void
 xloadcols(void) {
 	int i, r, g, b;
 	XColor color;
-	Colormap cmap = DefaultColormap(xw.dis, xw.scr);
 	unsigned long white = WhitePixel(xw.dis, xw.scr);
 
 	for(i = 0; i < 16; i++) {
-		if (!XAllocNamedColor(xw.dis, cmap, colorname[i], &color, &color)) {
+		if (!XAllocNamedColor(xw.dis, xw.cmap, colorname[i], &color, &color)) {
 			dc.col[i] = white;
 			fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
 		} else
@@ -1139,7 +1144,7 @@ xloadcols(void) {
 				color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
 				color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
 				color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
-				if (!XAllocColor(xw.dis, cmap, &color)) {
+				if (!XAllocColor(xw.dis, xw.cmap, &color)) {
 					dc.col[i] = white;
 					fprintf(stderr, "Could not allocate color %d\n", i);
 				} else
@@ -1149,7 +1154,7 @@ xloadcols(void) {
 
 	for(r = 0; r < 24; r++, i++) {
 		color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
-		if (!XAllocColor(xw.dis, cmap, &color)) {
+		if (!XAllocColor(xw.dis, xw.cmap, &color)) {
 			dc.col[i] = white;
 			fprintf(stderr, "Could not allocate color %d\n", i);
 		} else
@@ -1184,6 +1189,8 @@ xhints(void)
 
 void
 xinit(void) {
+	XSetWindowAttributes attrs;
+
 	if(!(xw.dis = XOpenDisplay(NULL)))
 		die("Can't open display\n");
 	xw.scr = XDefaultScreen(xw.dis);
@@ -1197,25 +1204,32 @@ xinit(void) {
 	xw.ch = dc.font->ascent + dc.font->descent;
 
 	/* colors */
+	xw.cmap = XDefaultColormap(xw.dis, xw.scr);
 	xloadcols();
 
-	/* windows */
-	xw.bufh = term.row * xw.ch;
-	xw.bufw = term.col * xw.cw;
+	/* window - default size */
+	xw.bufh = 24 * xw.ch;
+	xw.bufw = 80 * xw.cw;
 	xw.h = xw.bufh + 2*BORDER;
 	xw.w = xw.bufw + 2*BORDER;
-	xw.win = XCreateSimpleWindow(xw.dis, XRootWindow(xw.dis, xw.scr), 0, 0,
-			xw.w, xw.h, 0,
-			dc.col[DefaultBG],
-			dc.col[DefaultBG]);
+
+	attrs.background_pixel = dc.col[DefaultBG];
+	attrs.border_pixel = dc.col[DefaultBG];
+	attrs.bit_gravity = NorthWestGravity;
+	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,
+			xw.w, xw.h, 0, XDefaultDepth(xw.dis, xw.scr), InputOutput,
+			XDefaultVisual(xw.dis, xw.scr),
+			CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
+			| CWColormap,
+			&attrs);
 	xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
 	/* gc */
 	dc.gc = XCreateGC(xw.dis, xw.win, 0, NULL);
-
-	/* event mask */
-	XSelectInput(xw.dis, xw.win, ExposureMask | KeyPressMask
-		| StructureNotifyMask | FocusChangeMask | PointerMotionMask
-		| ButtonPressMask | ButtonReleaseMask);
 	
 	XMapWindow(xw.dis, xw.win);
 	xhints();
@@ -1272,7 +1286,7 @@ xdrawcursor(void) {
 		xclear(oldx, oldy, oldx, oldy);
 	
 	/* draw the new one */
-	if(!(term.c.state & CURSOR_HIDE) && xw.hasfocus) {
+	if(!(term.c.state & CURSOR_HIDE) && xw.focus) {
 		xdraws(&g.c, g, term.c.x, term.c.y, 1);
 		oldx = term.c.x, oldy = term.c.y;
 	}
@@ -1312,8 +1326,10 @@ draw(int redraw_all) {
 	Glyph base, new;
 	char buf[DRAW_BUF_SIZ];
 
-	XSetForeground(xw.dis, dc.gc, dc.col[DefaultBG]);
-	XFillRectangle(xw.dis, xw.buf, dc.gc, 0, 0, xw.bufw, xw.bufh);
+	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];
 		i = ox = 0;
@@ -1349,6 +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);
@@ -1359,7 +1388,7 @@ xseturgency(int add) {
 
 void
 focus(XEvent *ev) {
-	if((xw.hasfocus = ev->type == FocusIn))
+	if((xw.focus = ev->type == FocusIn))
 		xseturgency(0);
 	draw(SCREEN_UPDATE);
 }
@@ -1432,7 +1461,6 @@ resize(XEvent *e) {
 	xw.bufw = MAX(1, xw.bufw);
 	XFreePixmap(xw.dis, xw.buf);
 	xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
-	draw(SCREEN_REDRAW);
 }
 
 void