X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?p=xscreensaver;a=blobdiff_plain;f=android%2Fproject%2Fxscreensaver%2Fsrc%2Forg%2Fjwz%2Fxscreensaver%2FSliderPreference.java;fp=android%2Fproject%2Fxscreensaver%2Fsrc%2Forg%2Fjwz%2Fxscreensaver%2FSliderPreference.java;h=8a772637a24ebbcf224ba11038a92680e461ab08;hp=0000000000000000000000000000000000000000;hb=d1ae2829ff0fd2a96c16a0c8c5420efaa47d7b30;hpb=7edd66e6bd3209013ee059819747b10b5835635b

diff --git a/android/project/xscreensaver/src/org/jwz/xscreensaver/SliderPreference.java b/android/project/xscreensaver/src/org/jwz/xscreensaver/SliderPreference.java
new file mode 100644
index 00000000..8a772637
--- /dev/null
+++ b/android/project/xscreensaver/src/org/jwz/xscreensaver/SliderPreference.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2012 Jay Weisskopf
+ *
+ * Licensed under the MIT License (see LICENSE.txt)
+ */
+
+//package net.jayschwa.android.preference;
+package org.jwz.xscreensaver;
+
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.preference.DialogPreference;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.SeekBar;
+
+/**
+ * @author Jay Weisskopf
+ */
+public class SliderPreference extends DialogPreference {
+
+	protected final static int SEEKBAR_RESOLUTION = 10000;
+
+	protected float mValue;
+	protected int mSeekBarValue;
+	protected CharSequence[] mSummaries;
+
+	/**
+	 * @param context
+	 * @param attrs
+	 */
+	public SliderPreference(Context context, AttributeSet attrs) {
+		super(context, attrs);
+		setup(context, attrs);
+	}
+
+	/**
+	 * @param context
+	 * @param attrs
+	 * @param defStyle
+	 */
+	public SliderPreference(Context context, AttributeSet attrs, int defStyle) {
+		super(context, attrs, defStyle);
+		setup(context, attrs);
+	}
+
+	private void setup(Context context, AttributeSet attrs) {
+		setDialogLayoutResource(R.layout.slider_preference_dialog);
+		TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SliderPreference);
+		try {
+			setSummary(a.getTextArray(R.styleable.SliderPreference_android_summary));
+		} catch (Exception e) {
+			// Do nothing
+		}
+		a.recycle();
+	}
+
+	@Override
+	protected Object onGetDefaultValue(TypedArray a, int index) {
+		return a.getFloat(index, 0);
+	}
+
+	@Override
+	protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
+		setValue(restoreValue ? getPersistedFloat(mValue) : (Float) defaultValue);
+	}
+
+	@Override
+	public CharSequence getSummary() {
+		if (mSummaries != null && mSummaries.length > 0) {
+			int index = (int) (mValue * mSummaries.length);
+			index = Math.min(index, mSummaries.length - 1);
+			return mSummaries[index];
+		} else {
+			return super.getSummary();
+		}
+	}
+
+	public void setSummary(CharSequence[] summaries) {
+		mSummaries = summaries;
+	}
+
+	@Override
+	public void setSummary(CharSequence summary) {
+		super.setSummary(summary);
+		mSummaries = null;
+	}
+
+	@Override
+	public void setSummary(int summaryResId) {
+		try {
+			setSummary(getContext().getResources().getStringArray(summaryResId));
+		} catch (Exception e) {
+			super.setSummary(summaryResId);
+		}
+	}
+
+	public float getValue() {
+		return mValue;
+	}
+
+	public void setValue(float value) {
+		value = Math.max(0, Math.min(value, 1)); // clamp to [0, 1]
+		if (shouldPersist()) {
+			persistFloat(value);
+		}
+		if (value != mValue) {
+			mValue = value;
+			notifyChanged();
+		}
+	}
+
+	@Override
+	protected View onCreateDialogView() {
+		mSeekBarValue = (int) (mValue * SEEKBAR_RESOLUTION);
+		View view = super.onCreateDialogView();
+		SeekBar seekbar = (SeekBar) view.findViewById(R.id.slider_preference_seekbar);
+		seekbar.setMax(SEEKBAR_RESOLUTION);
+		seekbar.setProgress(mSeekBarValue);
+		seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+
+			@Override
+			public void onStopTrackingTouch(SeekBar seekBar) {
+			}
+
+			@Override
+			public void onStartTrackingTouch(SeekBar seekBar) {
+			}
+
+			@Override
+			public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+				if (fromUser) {
+					SliderPreference.this.mSeekBarValue = progress;
+				}
+			}
+		});
+		return view;
+	}
+
+	@Override
+	protected void onDialogClosed(boolean positiveResult) {
+		final float newValue = (float) mSeekBarValue / SEEKBAR_RESOLUTION;
+		if (positiveResult && callChangeListener(newValue)) {
+			setValue(newValue);
+		}
+		super.onDialogClosed(positiveResult);
+	}
+
+	// TODO: Save and restore preference state.
+}