Layouts - re-distributing remaining pixels after even split to address #12

1 files changed, 51 insertions, 0 deletions

diff --git a/patch/layout_facts.c b/patch/layout_facts.c
new file mode 100644
index 0000000..bc0a97a
--- /dev/null
+++ b/patch/layout_facts.c
@@ -0,0 +1,51 @@
+#if CFACTS_PATCH
+void
+getfacts(Monitor *m, int msize, int ssize, float *mf, float *sf, int *mr, int *sr)
+{
+	unsigned int n;
+	float mfacts = 0, sfacts = 0;
+	int mtotal = 0, stotal = 0;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++)
+		if (n < m->nmaster)
+			mfacts += c->cfact;
+		else
+			sfacts += c->cfact;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++)
+		if (n < m->nmaster)
+			mtotal += msize * (c->cfact / mfacts);
+		else
+			stotal += ssize * (c->cfact / sfacts);
+
+	*mf = mfacts; // total factor of master area
+	*sf = sfacts; // total factor of slave area
+	*mr = msize - mtotal; // the remainder (rest) of pixels after a cfacts master split
+	*sr = ssize - stotal; // the remainder (rest) of pixels after a cfacts slave split
+}
+#else
+void
+getfacts(Monitor *m, int msize, int ssize, float *mf, float *sf, int *mr, int *sr)
+{
+	unsigned int n;
+	float mfacts, sfacts;
+	int mtotal = 0, stotal = 0;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	mfacts = MIN(n, m->nmaster);
+	sfacts = n - m->nmaster;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++)
+		if (n < m->nmaster)
+			mtotal += msize / mfacts;
+		else
+			stotal += ssize / sfacts;
+
+	*mf = mfacts; // total factor of master area
+	*sf = sfacts; // total factor of slave area
+	*mr = msize - mtotal; // the remainder (rest) of pixels after an even master split
+	*sr = ssize - stotal; // the remainder (rest) of pixels after an even slave split
+}
+#endif // CFACTS_PATCH
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