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music-synthesizer-for-android
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Code Issues Releases Wiki Activity

Tweaks to KeyboardView note drawing

Browse Source 
Fixed a bug that was letting some white show. Also changed color of
black keys to gray, as it fit the design better.
master
Raph Levien 11 years ago
parent c7c16b022f
commit f9907cce2f
2 changed files with 42 additions and 45 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 81
      android/src/com/levien/synthesizer/android/widgets/keyboard/KeyboardSpec.java
  2. 6
      android/src/com/levien/synthesizer/android/widgets/keyboard/KeyboardView.java

81
android/src/com/levien/synthesizer/android/widgets/keyboard/KeyboardSpec.java
Unescape View File

@ -40,63 +40,57 @@ public class KeyboardSpec {
public static KeyboardSpec make2Row() {
KeyboardSpec ks = new KeyboardSpec(12, 84, 24);
final int w = Color.WHITE;
final int b = Color.BLACK;
ks.addKey(0, 12, 12, 12, w); // C
ks.addKey(6, 0, 12, 12, b); // C#
ks.addKey(12, 12, 12, 12, w); // D
ks.addKey(18, 0, 12, 12, b); // D#
ks.addKey(24, 12, 12, 12, w); // E
ks.addKey(36, 12, 12, 12, w); // F
ks.addKey(42, 0, 12, 12, b); // F#
ks.addKey(48, 12, 12, 12, w); // G
ks.addKey(54, 0, 12, 12, b); // G#
ks.addKey(60, 12, 12, 12, w); // A
ks.addKey(66, 0, 12, 12, b); // A#
ks.addKey(72, 12, 12, 12, w); // B
ks.addKey(0, 12, 12, 12, W); // C
ks.addKey(6, 0, 12, 12, B); // C#
ks.addKey(12, 12, 12, 12, W); // D
ks.addKey(18, 0, 12, 12, B); // D#
ks.addKey(24, 12, 12, 12, W); // E
ks.addKey(36, 12, 12, 12, W); // F
ks.addKey(42, 0, 12, 12, B); // F#
ks.addKey(48, 12, 12, 12, W); // G
ks.addKey(54, 0, 12, 12, B); // G#
ks.addKey(60, 12, 12, 12, W); // A
ks.addKey(66, 0, 12, 12, B); // A#
ks.addKey(72, 12, 12, 12, W); // B
return ks;
}
public static KeyboardSpec make3Row() {
KeyboardSpec ks = new KeyboardSpec(24, 84, 32);
final int w = Color.WHITE;
final int b = Color.BLACK;
for (int oct = 0; oct < 2; oct++) {
float x0 = 42 * oct;
float y1 = 20 - 12 * oct;
float y2 = 28 - y1;
ks.addKey(x0 + 0, y1, 12, 12, w); // C
ks.addKey(x0 + 4, 0, 8, 8, b); // C#
ks.addKey(x0 + 6, y2, 12, 12, w); // D
ks.addKey(x0 + 12, 0, 8, 8, b); // D#
ks.addKey(x0 + 12, y1, 12, 12, w); // E
ks.addKey(x0 + 18, y2, 12, 12, w); // F
ks.addKey(x0 + 21, 0, 8, 8, b); // F#
ks.addKey(x0 + 24, y1, 12, 12, w); // G
ks.addKey(x0 + 29, 0, 8, 8, b); // G#
ks.addKey(x0 + 30, y2, 12, 12, w); // A
ks.addKey(x0 + 37, 0, 8, 8, b); // A#
ks.addKey(x0 + 36, y1, 12, 12, w); // B
ks.addKey(x0 + 0, y1, 12, 12, W); // C
ks.addKey(x0 + 4, 0, 8, 8, B); // C#
ks.addKey(x0 + 6, y2, 12, 12, W); // D
ks.addKey(x0 + 12, 0, 8, 8, B); // D#
ks.addKey(x0 + 12, y1, 12, 12, W); // E
ks.addKey(x0 + 18, y2, 12, 12, W); // F
ks.addKey(x0 + 21, 0, 8, 8, B); // F#
ks.addKey(x0 + 24, y1, 12, 12, W); // G
ks.addKey(x0 + 29, 0, 8, 8, B); // G#
ks.addKey(x0 + 30, y2, 12, 12, W); // A
ks.addKey(x0 + 37, 0, 8, 8, B); // A#
ks.addKey(x0 + 36, y1, 12, 12, W); // B
}
return ks;
}
public static KeyboardSpec make3RowChromatic() {
KeyboardSpec ks = new KeyboardSpec(12, 12, 9);
final int w = Color.WHITE;
final int b = Color.BLACK;
ks.addKey(0, 6, 3, 3, w); // C
ks.addKey(1, 3, 3, 3, b); // C#
ks.addKey(2, 0, 3, 3, w); // D
ks.addKey(3, 6, 3, 3, b); // D#
ks.addKey(4, 3, 3, 3, w); // E
ks.addKey(5, 0, 3, 3, w); // F
ks.addKey(6, 6, 3, 3, b); // F#
ks.addKey(7, 3, 3, 3, w); // G
ks.addKey(8, 0, 3, 3, b); // G#
ks.addKey(9, 6, 3, 3, w); // A
ks.addKey(10, 3, 3, 3, b); // A#
ks.addKey(11, 0, 3, 3, w); // B
ks.addKey(0, 6, 3, 3, W); // C
ks.addKey(1, 3, 3, 3, B); // C#
ks.addKey(2, 0, 3, 3, W); // D
ks.addKey(3, 6, 3, 3, B); // D#
ks.addKey(4, 3, 3, 3, W); // E
ks.addKey(5, 0, 3, 3, W); // F
ks.addKey(6, 6, 3, 3, B); // F#
ks.addKey(7, 3, 3, 3, W); // G
ks.addKey(8, 0, 3, 3, B); // G#
ks.addKey(9, 6, 3, 3, W); // A
ks.addKey(10, 3, 3, 3, B); // A#
ks.addKey(11, 0, 3, 3, W); // B
return ks;
}
@ -117,4 +111,7 @@ public class KeyboardSpec {
public float height;
public float maxX;
private int ix_;
private static final int B = Color.GRAY;
private static final int W = Color.WHITE;
}

6
android/src/com/levien/synthesizer/android/widgets/keyboard/KeyboardView.java
Unescape View File

@ -102,8 +102,8 @@ public class KeyboardView extends View {
float x = x0 + ((i / keyboardSpec_.keys.length) * keyboardSpec_.repeatWidth +
ks.rect.left) * xscale;
float y = y0 + ks.rect.top * yscale;
float width = ks.rect.width() * xscale - strokeWidth_;
float height = ks.rect.height() * yscale - strokeWidth_;
float width = ks.rect.width() * xscale;
float height = ks.rect.height() * yscale;
int note = i + firstKey_;
int vel = noteStatus_[note];
if (vel == 0) {
@ -123,7 +123,7 @@ public class KeyboardView extends View {
if (ks.color != Color.BLACK) {
paint_.setColor(Color.BLACK);
paint_.setStyle(Style.STROKE);
canvas.drawRect(x, y, x + width + strokeWidth_, y + height + strokeWidth_, paint_);
canvas.drawRect(x, y, x + width, y + height, paint_);
} else {
paint_.setColor(Color.WHITE);
}

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