alsamixer - Tricolorize volume bars

A little of bit of Italian taste was missing...

Signed-off-by: Takashi Iwai <tiwai@suse.de>

3 files changed, 51 insertions, 18 deletions

diff --git a/alsamixer/colors.c b/alsamixer/colors.c
index f68de54..fcceb16 100644
--- a/alsamixer/colors.c
+++ b/alsamixer/colors.c
@@ -33,7 +33,11 @@ int attr_ctl_nocapture;
 int attr_ctl_label;
 int attr_ctl_label_focus;
 int attr_ctl_mark_focus;
-int attr_ctl_bar;
+int attr_ctl_bar_lo;
+#ifdef TRICOLOR_VOLUME_BAR
+int attr_ctl_bar_mi;
+int attr_ctl_bar_hi;
+#endif
 int attr_ctl_inactive;
 int attr_ctl_label_inactive;
 int attr_errormsg;
@@ -57,6 +61,10 @@ void init_colors(int use_color)
 		init_pair(7, COLOR_RED, COLOR_BLUE);
 		init_pair(8, COLOR_GREEN, COLOR_GREEN);
 		init_pair(9, COLOR_WHITE, COLOR_RED);
+#ifdef TRICOLOR_VOLUME_BAR
+		init_pair(10, COLOR_WHITE, COLOR_WHITE);
+		init_pair(11, COLOR_RED, COLOR_RED);
+#endif
 
 		attr_mixer_frame = COLOR_PAIR(1);
 		attr_mixer_text = COLOR_PAIR(1);
@@ -69,7 +77,11 @@ void init_colors(int use_color)
 		attr_ctl_label = A_BOLD | COLOR_PAIR(6);
 		attr_ctl_label_focus = A_BOLD | COLOR_PAIR(7);
 		attr_ctl_mark_focus = A_BOLD | COLOR_PAIR(4);
-		attr_ctl_bar = A_BOLD | COLOR_PAIR(8);
+		attr_ctl_bar_lo = A_BOLD | COLOR_PAIR(8);
+#ifdef TRICOLOR_VOLUME_BAR
+		attr_ctl_bar_mi = A_BOLD | COLOR_PAIR(10);
+		attr_ctl_bar_hi = A_BOLD | COLOR_PAIR(11);
+#endif
 		attr_ctl_inactive = COLOR_PAIR(5);
 		attr_ctl_label_inactive = A_REVERSE | COLOR_PAIR(5);
 		attr_errormsg = A_BOLD | COLOR_PAIR(9);
@@ -90,7 +102,11 @@ void init_colors(int use_color)
 		attr_ctl_label = A_REVERSE;
 		attr_ctl_label_focus = A_REVERSE | A_BOLD;
 		attr_ctl_mark_focus = A_BOLD;
-		attr_ctl_bar = A_BOLD;
+		attr_ctl_bar_lo = A_BOLD;
+#ifdef TRICOLOR_VOLUME_BAR
+		attr_ctl_bar_mi = A_BOLD;
+		attr_ctl_bar_hi = A_BOLD;
+#endif
 		attr_ctl_inactive = A_NORMAL;
 		attr_ctl_label_inactive = A_REVERSE;
 		attr_errormsg = A_STANDOUT;
diff --git a/alsamixer/colors.h b/alsamixer/colors.h
index e1d3b1a..9396004 100644
--- a/alsamixer/colors.h
+++ b/alsamixer/colors.h
@@ -1,6 +1,8 @@
 #ifndef COLORS_H_INCLUDED
 #define COLORS_H_INCLUDED
 
+#define TRICOLOR_VOLUME_BAR
+
 extern int attr_mixer_frame;
 extern int attr_mixer_text;
 extern int attr_mixer_active;
@@ -12,7 +14,11 @@ extern int attr_ctl_nocapture;
 extern int attr_ctl_label;
 extern int attr_ctl_label_focus;
 extern int attr_ctl_mark_focus;
-extern int attr_ctl_bar;
+extern int attr_ctl_bar_lo;
+#ifdef TRICOLOR_VOLUME_BAR
+extern int attr_ctl_bar_mi;
+extern int attr_ctl_bar_hi;
+#endif
 extern int attr_ctl_inactive;
 extern int attr_ctl_label_inactive;
 extern int attr_errormsg;
diff --git a/alsamixer/mixer_display.c b/alsamixer/mixer_display.c
index aade71d..d0a0e56 100644
--- a/alsamixer/mixer_display.c
+++ b/alsamixer/mixer_display.c
@@ -394,7 +394,7 @@ static void display_control(unsigned int control_index)
 {
 	struct control *control;
 	int col;
-	int i;
+	int i, c;
 	int left, frame_left;
 	int bar_height, value;
 	long volumes[2];
@@ -465,19 +465,30 @@ static void display_control(unsigned int control_index)
 
 		if (control->flags & IS_ACTIVE)
 			wattrset(mixer_widget.window, 0);
-		bar_height = ((volumes[0] - min) * volume_height + max - min - 1) / (max - min);
-		for (i = 0; i < volume_height; ++i)
-			mvwaddch(mixer_widget.window, base_y - i - 1, frame_left + 1,
-				 i + 1 <= bar_height
-				 ? ACS_CKBOARD | (control->flags & IS_ACTIVE ? attr_ctl_bar : 0)
-				 : ' '         | (control->flags & IS_ACTIVE ? attr_ctl_frame : 0));
-		bar_height = ((volumes[1] - min) * volume_height + max - min - 1) / (max - min);
-		for (i = 0; i < volume_height; ++i)
-			mvwaddch(mixer_widget.window, base_y - i - 1, frame_left + 2,
-				 i + 1 <= bar_height
-				 ? ACS_CKBOARD | (control->flags & IS_ACTIVE ? attr_ctl_bar : 0)
-				 : ' '         | (control->flags & IS_ACTIVE ? attr_ctl_frame : 0));
-
+		for (c = 0; c < 2; c++) {
+			bar_height = ((volumes[c] - min) * volume_height +
+				      max - min - 1) / (max - min);
+			for (i = 0; i < volume_height; ++i) {
+				int attr;
+				if (i + 1 > bar_height)
+					attr = ' ' |
+						(control->flags & IS_ACTIVE ?
+						 attr_ctl_frame : 0);
+				else {
+					attr = ACS_CKBOARD;
+#ifdef TRICOLOR_VOLUME_BAR
+					if (i > volume_height * 8 / 10)
+						attr |= attr_ctl_bar_hi;
+					else if (i > volume_height * 4 / 10)
+						attr |= attr_ctl_bar_mi;
+					else
+#endif
+						attr |= attr_ctl_bar_lo;
+				}
+				mvwaddch(mixer_widget.window, base_y - i - 1,
+					 frame_left + c + 1, attr);
+			}
+		}
 		if (control->flags & IS_ACTIVE)
 			wattrset(mixer_widget.window, attr_mixer_active);
 		value = ((volumes[0] - min) * 100 + (max - min) / 2) / (max - min);