From f2916d10b958a1b58dd6fc07842c65c80654a4d4 Mon Sep 17 00:00:00 2001
From: Alexey Yakovenko <wakeroid@gmail.com>
Date: Sun, 13 Sep 2009 11:13:01 +0200
Subject: reduced volumebar range to -50..0dB

---
 callbacks.c | 23 +++++++++++++----------
 volume.c    | 14 ++++++++++----
 volume.h    |  3 +++
 3 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/callbacks.c b/callbacks.c
index e04241e5..3d13b550 100644
--- a/callbacks.c
+++ b/callbacks.c
@@ -1042,9 +1042,9 @@ volumebar_draw (GtkWidget *widget) {
 	if (!cr) {
         return;
     }
-
+    float range = -volume_get_min_db ();
     int n = widget->allocation.width / 4;
-    float vol = (60.f + volume_get_db ()) / 60.f * n;
+    float vol = (range + volume_get_db ()) / range * n;
     float h = 16;
     for (int i = 0; i < n; i++) {
         float iy = (float)i + 3;
@@ -1096,12 +1096,13 @@ on_volumebar_motion_notify_event       (GtkWidget       *widget,
                                         gpointer         user_data)
 {
     if (event->state & GDK_BUTTON1_MASK) {
-        float volume = event->x / widget->allocation.width * 60.f - 60.f;
+        float range = -volume_get_min_db ();
+        float volume = event->x / widget->allocation.width * range - range;
         if (volume > 0) {
             volume = 0;
         }
-        if (volume < -60) {
-            volume = -60;
+        if (volume < -range) {
+            volume = -range;
         }
         volume_set_db (volume);
         volumebar_draw (widget);
@@ -1115,9 +1116,10 @@ on_volumebar_button_press_event        (GtkWidget       *widget,
                                         GdkEventButton  *event,
                                         gpointer         user_data)
 {
-    float volume = event->x / widget->allocation.width * 60.f - 60.f;
-    if (volume < -60) {
-        volume = -60;
+    float range = -volume_get_min_db ();
+    float volume = event->x / widget->allocation.width * range - range;
+    if (volume < -range) {
+        volume = -range;
     }
     if (volume > 0) {
         volume = 0;
@@ -1166,6 +1168,7 @@ on_volumebar_scroll_event              (GtkWidget       *widget,
                                         GdkEventScroll        *event,
                                         gpointer         user_data)
 {
+    float range = -volume_get_min_db ();
     float vol = volume_get_db ();
     if (event->direction == GDK_SCROLL_UP || event->direction == GDK_SCROLL_RIGHT) {
         vol += 1;
@@ -1176,8 +1179,8 @@ on_volumebar_scroll_event              (GtkWidget       *widget,
     if (vol > 0) {
         vol = 0;
     }
-    else if (vol < -60) {
-        vol = -60;
+    else if (vol < -range) {
+        vol = -range;
     }
     volume_set_db (vol);
     GtkWidget *volumebar = lookup_widget (mainwin, "volumebar");
diff --git a/volume.c b/volume.c
index 6726dd9f..7b82623e 100644
--- a/volume.c
+++ b/volume.c
@@ -21,20 +21,22 @@
 #include "volume.h"
 #include "session.h"
 
+#define VOLUME_MIN (-50.f)
+
 static float volume_db = 0; // in dB
 static float volume_amp = 1; // amplitude [0..1]
 
 void
 volume_set_db (float dB) {
-    if (dB < -60) {
-        dB = -60;
+    if (dB < VOLUME_MIN) {
+        dB = VOLUME_MIN;
     }
     if (dB > 0) {
         dB = 0;
     }
     session_set_volume (dB);
     volume_db = dB;
-    volume_amp = dB > -60 ? db_to_amp (dB) : 0;
+    volume_amp = dB > VOLUME_MIN ? db_to_amp (dB) : 0;
 }
 
 float
@@ -51,7 +53,7 @@ volume_set_amp (float amp) {
         amp = 1;
     }
     volume_amp = amp;
-    volume_db = amp > 0 ? amp_to_db (amp) : -60.f;
+    volume_db = amp > 0 ? amp_to_db (amp) : VOLUME_MIN;
     session_set_volume (volume_db);
 }
 
@@ -70,3 +72,7 @@ amp_to_db (float amp) {
     return 20*log10 (amp);
 }
 
+float
+volume_get_min_db (void) {
+    return VOLUME_MIN;
+}
diff --git a/volume.h b/volume.h
index b6c2868d..a372cc1c 100644
--- a/volume.h
+++ b/volume.h
@@ -37,4 +37,7 @@ db_to_amp (float dB);
 float
 amp_to_db (float amp);
 
+float
+volume_get_min_db (void);
+
 #endif // __VOLUME_H
-- 
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