X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=dwm.c;h=99920d034e20752699aae2e3ad034a58c0dd75f4;hb=cd7ebaad25fa5f10a4442f9d80a05f344ca271d3;hp=9e9e7483b7eea36e1fda3958d53ebf719342ee64;hpb=eeea4ef583a2ca3746e987bd2ecd570fd1869c2d;p=dwm.git

diff --git a/dwm.c b/dwm.c
index 9e9e748..99920d0 100644
--- a/dwm.c
+++ b/dwm.c
@@ -57,6 +57,21 @@ enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
 
 /* typedefs */
 typedef struct Client Client;
+struct Client {
+	char name[256];
+	int x, y, w, h;
+	int rx, ry, rw, rh; /* revert geometry */
+	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
+	int minax, maxax, minay, maxay;
+	long flags;
+	unsigned int border, oldborder;
+	Bool isbanned, isfixed, ismax, isfloating, wasfloating;
+	Bool *tags;
+	Client *next;
+	Client *prev;
+	Client *snext;
+	Window win;
+};
 
 typedef struct {
 	int x, y, w, h;
@@ -96,7 +111,7 @@ typedef struct {
 	regex_t *tagregex;
 } Regs;
 
-/* forward declarations */
+/* functions */
 void applyrules(Client *c);
 void arrange(void);
 void attach(Client *c);
@@ -170,6 +185,7 @@ void updatebarpos(void);
 void updatesizehints(Client *c);
 void updatetitle(Client *c);
 void view(const char *arg);
+void viewprevtag(const char *arg);	/* views previous selected tags */
 int xerror(Display *dpy, XErrorEvent *ee);
 int xerrordummy(Display *dsply, XErrorEvent *ee);
 int xerrorstart(Display *dsply, XErrorEvent *ee);
@@ -216,27 +232,10 @@ Regs *regs = NULL;
 /* configuration, allows nested code to access above variables */
 #include "config.h"
 
-/* Statically define the number of tags. */
+/* statically define the number of tags. */
 unsigned int ntags = sizeof tags / sizeof tags[0];
 Bool seltags[sizeof tags / sizeof tags[0]] = {[0] = True};
-
-struct Client {
-	char name[256];
-	int x, y, w, h;
-	int rx, ry, rw, rh; /* revert geometry */
-	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
-	int minax, maxax, minay, maxay;
-	long flags;
-	unsigned int border, oldborder;
-	Bool isbanned, isfixed, ismax, isfloating, wasfloating;
-	Bool tags[sizeof tags / sizeof tags[0]];
-	Client *next;
-	Client *prev;
-	Client *snext;
-	Window win;
-};
-
-/* functions*/
+Bool prevtags[sizeof tags / sizeof tags[0]] = {[0] = True};
 void
 applyrules(Client *c) {
 	static char buf[512];
@@ -265,8 +264,7 @@ applyrules(Client *c) {
 	if(ch.res_name)
 		XFree(ch.res_name);
 	if(!matched)
-		for(i = 0; i < ntags; i++)
-			c->tags[i] = seltags[i];
+		memcpy(c->tags, seltags, sizeof seltags);
 }
 
 void
@@ -1002,13 +1000,13 @@ leavenotify(XEvent *e) {
 
 void
 manage(Window w, XWindowAttributes *wa) {
-	unsigned int i;
 	Client *c, *t = NULL;
 	Window trans;
 	Status rettrans;
 	XWindowChanges wc;
 
 	c = emallocz(sizeof(Client));
+	c->tags = emallocz(sizeof seltags);
 	c->win = w;
 	c->x = wa->x;
 	c->y = wa->y;
@@ -1043,8 +1041,7 @@ manage(Window w, XWindowAttributes *wa) {
 	if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
 		for(t = clients; t && t->win != trans; t = t->next);
 	if(t)
-		for(i = 0; i < ntags; i++)
-			c->tags[i] = t->tags[i];
+		memcpy(c->tags, t->tags, sizeof seltags);
 	applyrules(c);
 	if(!c->isfloating)
 		c->isfloating = (rettrans == Success) || c->isfixed;
@@ -1163,43 +1160,45 @@ quit(const char *arg) {
 
 void
 resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
-	double dx, dy, max, min, ratio;
 	XWindowChanges wc;
 
 	if(sizehints) {
-		if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0 && (w - c->basew) > 0) {
-			dx = (double)(w - c->basew);
-			dy = (double)(h - c->baseh);
-			min = (double)(c->minax) / (double)(c->minay);
-			max = (double)(c->maxax) / (double)(c->maxay);
-			ratio = dx / dy;
-			if(max > 0 && min > 0 && ratio > 0) {
-				if(ratio < min) {
-					dy = (dx * min + dy) / (min * min + 1);
-					dx = dy * min;
-					w = (int)dx + c->basew;
-					h = (int)dy + c->baseh;
-				}
-				else if(ratio > max) {
-					dy = (dx * min + dy) / (max * max + 1);
-					dx = dy * min;
-					w = (int)dx + c->basew;
-					h = (int)dy + c->baseh;
-				}
-			}
+		/* set minimum possible */
+		if (w < 1)
+			w = 1;
+		if (h < 1)
+			h = 1;
+
+		/* temporarily remove base dimensions */
+		w -= c->basew;
+		h -= c->baseh;
+
+		/* adjust for aspect limits */
+		if (c->minay > 0 && c->maxay > 0 && c->minax > 0 && c->maxax > 0) {
+			if (w * c->maxay > h * c->maxax)
+				w = h * c->maxax / c->maxay;
+			else if (w * c->minay < h * c->minax)
+				h = w * c->minay / c->minax;
 		}
-		if(c->minw && w < c->minw)
+
+		/* adjust for increment value */
+		if(c->incw)
+			w -= w % c->incw;
+		if(c->inch)
+			h -= h % c->inch;
+
+		/* restore base dimensions */
+		w += c->basew;
+		h += c->baseh;
+
+		if(c->minw > 0 && w < c->minw)
 			w = c->minw;
-		if(c->minh && h < c->minh)
+		if(c->minh > 0 && h < c->minh)
 			h = c->minh;
-		if(c->maxw && w > c->maxw)
+		if(c->maxw > 0 && w > c->maxw)
 			w = c->maxw;
-		if(c->maxh && h > c->maxh)
+		if(c->maxh > 0 && h > c->maxh)
 			h = c->maxh;
-		if(c->incw)
-			w -= (w - c->basew) % c->incw;
-		if(c->inch)
-			h -= (h - c->baseh) % c->inch;
 	}
 	if(w <= 0 || h <= 0)
 		return;
@@ -1702,6 +1701,7 @@ unmanage(Client *c) {
 		focus(NULL);
 	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
 	setclientstate(c, WithdrawnState);
+	free(c->tags);
 	free(c);
 	XSync(dpy, False);
 	XSetErrorHandler(xerror);
@@ -1838,6 +1838,7 @@ void
 view(const char *arg) {
 	unsigned int i;
 
+	memcpy(prevtags, seltags, sizeof seltags);
 	for(i = 0; i < ntags; i++)
 		seltags[i] = arg == NULL;
 	i = idxoftag(arg);
@@ -1847,6 +1848,16 @@ view(const char *arg) {
 }
 
 void
+viewprevtag(const char *arg) {
+	static Bool tmptags[sizeof tags / sizeof tags[0]];
+
+	memcpy(tmptags, seltags, sizeof seltags);
+	memcpy(seltags, prevtags, sizeof seltags);
+	memcpy(prevtags, tmptags, sizeof seltags);
+	arrange();
+}
+
+void
 zoom(const char *arg) {
 	Client *c;