From 2e0e84d56a934bcc180d5638969fb78a7016b9f3 Mon Sep 17 00:00:00 2001
From: Jordan Callicoat <jordan.callicoat@gmail.com>
Date: Wed, 28 Feb 2024 07:34:06 -0600
Subject: [PATCH] Add selectioncolors patch (#110)

https://st.suckless.org/patches/selectioncolors/

Closes #91
---
 config.def.h  |  7 +++++++
 patches.def.h |  7 +++++++
 st.h          |  3 +++
 x.c           | 31 +++++++++++++++++++++++++++++++
 4 files changed, 48 insertions(+)

diff --git a/config.def.h b/config.def.h
index 2dcaef7..f79e508 100644
--- a/config.def.h
+++ b/config.def.h
@@ -206,6 +206,13 @@ unsigned int defaultbg = 258;
 unsigned int defaultfg = 259;
 unsigned int defaultcs = 256;
 unsigned int defaultrcs = 257;
+#if SELECTION_COLORS_PATCH
+unsigned int selectionfg = 258;
+unsigned int selectionbg = 259;
+/* If 0 use selectionfg as foreground in order to have a uniform foreground-color */
+/* Else if 1 keep original foreground-color of each cell => more colors :) */
+static int ignoreselfg = 1;
+#endif // SELECTION_COLORS_PATCH
 
 #if VIM_BROWSE_PATCH
 unsigned int const currentBg = 6, buffSize = 2048;
diff --git a/patches.def.h b/patches.def.h
index 013cc10..2150443 100644
--- a/patches.def.h
+++ b/patches.def.h
@@ -293,6 +293,13 @@
  */
 #define SCROLLBACK_MOUSE_ALTSCREEN_PATCH 0
 
+/* This patch adds the two color-settings selectionfg and selectionbg to config.def.h.
+ * Those define the fore- and background colors which are used when text on the screen is selected
+ * with the mouse. This removes the default behaviour which would simply reverse the colors.
+ * https://st.suckless.org/patches/selectioncolors/
+ */
+#define SELECTION_COLORS_PATCH 0
+
 /* This is the single drawable buffer patch as outlined in the FAQ to get images
  * in w3m to display. While this patch does not break the alpha patch it images
  * are not shown in w3m if the alpha patch is applied.
diff --git a/st.h b/st.h
index 41af307..cea15f2 100644
--- a/st.h
+++ b/st.h
@@ -62,6 +62,9 @@ enum glyph_attribute {
 	ATTR_SIXEL      = 1 << 13,
 	#endif // SIXEL_PATCH
 	ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
+	#if SELECTION_COLORS_PATCH
+	ATTR_SELECTED   = 1 << 14,
+	#endif // SELECTION_COLORS_PATCH
 	#if UNDERCURL_PATCH
 	ATTR_DIRTYUNDERLINE = 1 << 15,
 	#endif // UNDERCURL_PATCH
diff --git a/x.c b/x.c
index a5cc7ef..e1104ae 100644
--- a/x.c
+++ b/x.c
@@ -2078,6 +2078,14 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
 		#endif // SPOILER_PATCH
 	}
 
+	#if SELECTION_COLORS_PATCH
+	if (base.mode & ATTR_SELECTED) {
+		bg = &dc.col[selectionbg];
+		if (!ignoreselfg)
+			fg = &dc.col[selectionfg];
+	}
+	#endif // SELECTION_COLORS_PATCH
+
 	if (base.mode & ATTR_BLINK && win.mode & MODE_BLINK)
 		fg = bg;
 
@@ -2605,7 +2613,11 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
 
 	/* remove the old cursor */
 	if (selected(ox, oy))
+		#if SELECTION_COLORS_PATCH
+		og.mode |= ATTR_SELECTED;
+		#else
 		og.mode ^= ATTR_REVERSE;
+		#endif // SELECTION_COLORS_PATCH
 	#if LIGATURES_PATCH
 	/* Redraw the line where cursor was previously.
 	 * It will restore the ligatures broken by the cursor. */
@@ -2634,6 +2646,10 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
 	if (IS_SET(MODE_REVERSE)) {
 		g.mode |= ATTR_REVERSE;
 		g.bg = defaultfg;
+		#if SELECTION_COLORS_PATCH
+		g.fg = defaultcs;
+		drawcol = dc.col[defaultrcs];
+		#else
 		if (selected(cx, cy)) {
 			drawcol = dc.col[defaultcs];
 			g.fg = defaultrcs;
@@ -2641,7 +2657,13 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
 			drawcol = dc.col[defaultrcs];
 			g.fg = defaultcs;
 		}
+		#endif // SELECTION_COLORS_PATCH
 	} else {
+		#if SELECTION_COLORS_PATCH
+		g.fg = defaultbg;
+		g.bg = defaultcs;
+		drawcol = dc.col[defaultcs];
+		#else
 		if (selected(cx, cy)) {
 			g.fg = defaultfg;
 			g.bg = defaultrcs;
@@ -2669,6 +2691,7 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
 		} else
 			drawcol = dc.col[g.bg];
 		#endif // DYNAMIC_CURSOR_COLOR_PATCH
+		#endif // SELECTION_COLORS_PATCH
 	}
 
 	/* draw the new one */
@@ -2898,7 +2921,11 @@ xdrawline(Line line, int x1, int y1, int x2)
 			if (new.mode == ATTR_WDUMMY)
 				continue;
 			if (selected(x, y1))
+				#if SELECTION_COLORS_PATCH
+				new.mode |= ATTR_SELECTED;
+				#else
 				new.mode ^= ATTR_REVERSE;
+				#endif // SELECTION_COLORS_PATCH
 			if (i > 0 && ATTRCMP(base, new)) {
 				xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
 				specs += i;
@@ -2927,7 +2954,11 @@ xdrawline(Line line, int x1, int y1, int x2)
 		if (new.mode == ATTR_WDUMMY)
 			continue;
 		if (selected(x, y1))
+			#if SELECTION_COLORS_PATCH
+			new.mode |= ATTR_SELECTED;
+			#else
 			new.mode ^= ATTR_REVERSE;
+			#endif // SELECTION_COLORS_PATCH
 		if (i > 0 && ATTRCMP(base, new)) {
 			xdrawglyphfontspecs(specs, base, i, ox, y1);
 			specs += i;