Preference Screen for wallpaper

dvhh · Apr 21, 2015 · 7685122 · 7685122
1 parent b1ca1dc
commit 7685122
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diff --git a/term/src/main/java/jackpal/androidterm/TermPreferences.java b/term/src/main/java/jackpal/androidterm/TermPreferences.java
@@ -27,6 +27,7 @@
 import android.database.Cursor;
 import android.net.Uri;
 import jackpal.androidterm.compat.FileCompat;
+import jackpal.androidterm.preferences.SliderPreference;
 
 import android.os.Bundle;
 import android.preference.EditTextPreference;
@@ -56,6 +57,7 @@ public class TermPreferences extends PreferenceActivity {
 
     private static final String CUSTOM_FONT_CHOOSER_KEY ="custom_font_filepath";
     private static final String CATEGORY_TEXT_KEY = "text_category";
+    private static final String TRANSPARENCY_KEY = "system_wallpaper_alpha";
 
     private static final int RESULT_CODE_FONT_CHOOSER=1;
 
@@ -180,6 +182,19 @@ public boolean onPreferenceClick(Preference preference) {
         }else{
             Log.e(TermPreferences.class.getName(), "cannot find 'font selector' preference");
         }
+
+        SliderPreference transparencyPreference=(SliderPreference)findPreference(TRANSPARENCY_KEY);
+        if(transparencyPreference!=null) {
+            transparencyPreference.setOnSeekBarChangeListener(new SliderPreference.OnSeekBarChangeListener(){
+
+                @Override
+                public void onProgressChanged(SliderPreference target, int progress, boolean fromUser) {
+                    target.setValueText(String.format(getString(R.string.format_transparency_preference),100.0*progress/255));
+                }
+            });
+        }else{
+            Log.e(TermPreferences.class.getName(), "cannot find 'transparency' preference");
+        }
     }
 
 

diff --git a/term/src/main/java/jackpal/androidterm/preferences/SliderPreference.java b/term/src/main/java/jackpal/androidterm/preferences/SliderPreference.java
@@ -0,0 +1,155 @@
+package jackpal.androidterm.preferences;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.os.Bundle;
+import android.preference.DialogPreference;
+import android.util.AttributeSet;
+import android.view.Gravity;
+import android.view.View;
+import android.widget.Button;
+import android.widget.LinearLayout;
+import android.widget.SeekBar;
+import android.widget.TextView;
+
+/**
+ * based on http://stackoverflow.com/questions/1974193/slider-on-my-preferencescreen
+ */
+
+public class SliderPreference extends DialogPreference implements SeekBar.OnSeekBarChangeListener,SeekBar.OnClickListener {
+    private static final String androidns="http://schemas.android.com/apk/res/android";
+
+    protected Context  mContext=null;
+    protected TextView mSplashText;
+    protected CharSequence mDialogMessage;
+    protected TextView mValueText;
+    protected SeekBar mSeekBar;
+    protected int mValue;
+    protected int mDefault;
+    protected int mMax;
+
+    protected OnSeekBarChangeListener mOnSeekBarChangeListener=null;
+
+    public static abstract class OnSeekBarChangeListener{
+        public abstract void  onProgressChanged(SliderPreference target,int progress,boolean fromUser);
+    }
+
+
+    public void setOnSeekBarChangeListener(OnSeekBarChangeListener onSeekBarChangeListener) {
+        mOnSeekBarChangeListener=onSeekBarChangeListener;
+    }
+
+    protected static String getAttributeString(Context context, AttributeSet attrs,String namespace,String attribute,String defaultValue) {
+        String result=defaultValue;
+        int resourceID=attrs.getAttributeResourceValue(namespace, attribute, 0);
+        if(resourceID==0) {
+            result=attrs.getAttributeValue(namespace,attribute);
+        }else{
+            result=context.getString(resourceID);
+        }
+        return result;
+    }
+
+    public SliderPreference(Context context, AttributeSet attrs) {
+        super(context,attrs);
+        mContext=context;
+
+        mDialogMessage=getDialogMessage();
+        mDefault = attrs.getAttributeIntValue(androidns,"defaultValue",0);
+        mMax = attrs.getAttributeIntValue(androidns,"max",100);
+    }
+
+    @Override
+    protected View onCreateDialogView() {
+        LinearLayout.LayoutParams params;
+        LinearLayout layout = new LinearLayout(mContext);
+        layout.setOrientation(LinearLayout.VERTICAL);
+        layout.setPadding(6,6, 6, 6);
+
+        mSplashText = new TextView(mContext);
+        mSplashText.setPadding(30, 10, 30, 10);
+        if (mDialogMessage != null)
+            mSplashText.setText(mDialogMessage);
+        layout.addView(mSplashText);
+
+        mValueText = new TextView(mContext);
+        mValueText.setGravity(Gravity.CENTER_HORIZONTAL);
+        mValueText.setTextSize(32);
+        params = new LinearLayout.LayoutParams(
+                LinearLayout.LayoutParams.FILL_PARENT,
+                LinearLayout.LayoutParams.WRAP_CONTENT);
+        layout.addView(mValueText, params);
+
+        mSeekBar = new SeekBar(mContext);
+        mSeekBar.setOnSeekBarChangeListener(this);
+        layout.addView(mSeekBar, new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
+
+        if (shouldPersist())
+            mValue = getPersistedInt(mDefault);
+
+        mSeekBar.setMax(mMax);
+        mSeekBar.setProgress(mValue);
+
+        return layout;
+    }
+
+    @Override
+    protected void onBindDialogView(View v) {
+        super.onBindDialogView(v);
+        mSeekBar.setMax(mMax);
+        mSeekBar.setProgress(mValue);
+    }
+
+    public void setValueText(String text) {
+        mValueText.setText(text);
+    }
+
+    @Override
+    public void onProgressChanged(SeekBar seek, int value, boolean fromTouch)
+    {
+        String t = String.valueOf(value);
+        setValueText(t);
+
+        if(mOnSeekBarChangeListener!=null) {
+            mOnSeekBarChangeListener.onProgressChanged(this, value, fromTouch);
+        }
+
+    }
+
+    @Override
+    public void onStartTrackingTouch(SeekBar seek) {}
+    @Override
+    public void onStopTrackingTouch(SeekBar seek) {}
+
+    public void setMax(int max) { mMax = max; }
+    public int getMax() { return mMax; }
+
+    public void setProgress(int progress) {
+        mValue = progress;
+        if (mSeekBar != null)
+            mSeekBar.setProgress(progress);
+    }
+    public int getProgress() { return mValue; }
+
+    @Override
+    public void showDialog(Bundle state) {
+
+        super.showDialog(state);
+
+        Button positiveButton = ((AlertDialog) getDialog()).getButton(AlertDialog.BUTTON_POSITIVE);
+        positiveButton.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+
+        if (shouldPersist()) {
+
+            mValue = mSeekBar.getProgress();
+            persistInt(mSeekBar.getProgress());
+            callChangeListener(Integer.valueOf(mSeekBar.getProgress()));
+        }
+
+        ((AlertDialog) getDialog()).dismiss();
+    }
+}
diff --git a/term/src/main/res/values/defaults.xml b/term/src/main/res/values/defaults.xml
@@ -5,6 +5,8 @@
    <integer name="pref_actionbar_default">1</integer>
    <integer name="pref_orientation_default">0</integer>
    <integer name="pref_toast_position_default">4</integer>
+   <bool name="pref_use_system_wallpaper_default">false</bool>
+   <integer name="pref_transparency_default" translatable="false">127</integer>
    <string name="pref_customfontfilepath_default"></string>
    <bool name="pref_safe_margins_default">false</bool>
    <string name="pref_cursorstyle_default" translatable="false">0</string>

diff --git a/term/src/main/res/values/strings.xml b/term/src/main/res/values/strings.xml
@@ -69,6 +69,14 @@
    <string name="title_safe_margins_preference">Safe margins</string>
    <string name="summary_safe_margins_preference">Add overscan margins to the terminal screen.</string>
 
+   <string name="title_use_system_wallpaper_preference">Use system wallpaper</string>
+   <string name="summary_use_system_wallpaper_preference">Use system wallpaper as terminal background</string>
+
+   <string name="title_transparency_preference">Wallpaper transparency</string>
+   <string name="summary_transparency_preference">Set wallpaper transparency</string>
+   <string name="format_transparency_preference">%.1f%%</string>
+   <string name="dialog_use_system_wallpaper_preference">Set the wallpaper transparency</string>
+
    <string name="title_cursorstyle_preference">Cursor style</string>
    <string name="summary_cursorstyle_preference">Choose cursor style.</string>
    <string name="dialog_title_cursorstyle_preference">Cursor style</string>

diff --git a/term/src/main/res/xml/preferences.xml b/term/src/main/res/xml/preferences.xml
@@ -62,6 +62,23 @@
                 android:title="@string/title_safe_margins_preference"
                 android:summary="@string/summary_safe_margins_preference"
             />
+
+        <CheckBoxPreference
+                android:key="use_system_wallpaper"
+            android:defaultValue="@bool/pref_use_system_wallpaper_default"
+            android:title="@string/title_use_system_wallpaper_preference"
+            android:summary="@string/summary_use_system_wallpaper_preference"/>
+
+
+        <jackpal.androidterm.preferences.SliderPreference
+            android:key="system_wallpaper_alpha"
+            android:max="255"
+            android:defaultValue="@integer/pref_transparency_default"
+            android:title="@string/title_transparency_preference"
+            android:dialogTitle="@string/title_transparency_preference"
+            android:dialogMessage="@string/dialog_use_system_wallpaper_preference"
+            android:summary="@string/summary_transparency_preference"
+            />
 <!--
         <ListPreference
                 android:key="cursorstyle"