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Read system fonts from XML for text overlay font selection

pull/3/head
Olga Miller 2017-02-07 22:03:52 +01:00
rodzic 27060910f6
commit 62fecce1d3
3 zmienionych plików z 256 dodań i 10 usunięć
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64
app/src/main/java/om/sstvencoder/EditTextActivity.java
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@ -28,6 +28,8 @@ import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Spinner;
import java.util.List;
import om.sstvencoder.ColorPalette.ColorPaletteView;
import om.sstvencoder.TextOverlay.Label;
@ -37,6 +39,10 @@ public class EditTextActivity extends AppCompatActivity implements AdapterView.O
private EditText mEditText;
private ColorPaletteView mColorPaletteView;
private float mTextSize;
private FontFamilySet mFontFamilySet;
private FontFamilySet.FontFamily mSelectedFontFamily;
private List<String> mFontFamilyNameList;
private CheckBox mEditItalic, mEditBold;
@Override
protected void onCreate(Bundle savedInstanceState) {
@ -44,6 +50,8 @@ public class EditTextActivity extends AppCompatActivity implements AdapterView.O
setContentView(R.layout.activity_edit_text);
mEditText = (EditText) findViewById(R.id.edit_text);
mColorPaletteView = (ColorPaletteView) findViewById(R.id.edit_color);
mEditBold = (CheckBox) findViewById(R.id.edit_bold);
mEditItalic = (CheckBox) findViewById(R.id.edit_italic);
}
@Override
@ -51,19 +59,33 @@ public class EditTextActivity extends AppCompatActivity implements AdapterView.O
super.onStart();
Label label = (Label) getIntent().getSerializableExtra(EXTRA);
mEditText.setText(label.getText());
mTextSize = label.getTextSize();
initTextSizeSpinner(textSizeToPosition(mTextSize));
((CheckBox) findViewById(R.id.edit_italic)).setChecked(label.getItalic());
((CheckBox) findViewById(R.id.edit_bold)).setChecked(label.getBold());
initTextSizeSpinner(label.getTextSize());
mEditBold.setChecked(label.getBold());
mEditItalic.setChecked(label.getItalic());
mColorPaletteView.setColor(label.getForeColor());
initFontFamilySpinner(label.getFamilyName());
updateBoldAndItalic();
}
private void initTextSizeSpinner(int position) {
private void initFontFamilySpinner(String familyName) {
Spinner editFontFamily = (Spinner) findViewById(R.id.edit_font_family);
editFontFamily.setOnItemSelectedListener(this);
mFontFamilySet = new FontFamilySet();
mSelectedFontFamily = mFontFamilySet.getFontFamily(familyName);
mFontFamilyNameList = mFontFamilySet.getFontFamilyDisplayNameList();
editFontFamily.setAdapter(new ArrayAdapter<>(this,
android.R.layout.simple_spinner_dropdown_item, mFontFamilyNameList));
editFontFamily.setSelection(mFontFamilyNameList.indexOf(mSelectedFontFamily.displayName));
}
private void initTextSizeSpinner(float textSize) {
mTextSize = textSize;
Spinner editTextSize = (Spinner) findViewById(R.id.edit_text_size);
editTextSize.setOnItemSelectedListener(this);
String[] textSizeList = new String[]{"Small", "Normal", "Large", "Huge"};
editTextSize.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_spinner_dropdown_item, textSizeList));
editTextSize.setSelection(position);
editTextSize.setAdapter(new ArrayAdapter<>(this,
android.R.layout.simple_spinner_dropdown_item, textSizeList));
editTextSize.setSelection(textSizeToPosition(textSize));
}
private int textSizeToPosition(float textSize) {
@ -79,7 +101,28 @@ public class EditTextActivity extends AppCompatActivity implements AdapterView.O
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
mTextSize = positionToTextSize(position);
switch (parent.getId()) {
case R.id.edit_text_size:
mTextSize = positionToTextSize(position);
break;
case R.id.edit_font_family:
String displayName = mFontFamilyNameList.get(position);
mSelectedFontFamily = mFontFamilySet.getFontFamilyFromDisplayName(displayName);
updateBoldAndItalic();
break;
default:
break;
}
}
private void updateBoldAndItalic() {
mEditBold.setEnabled(mSelectedFontFamily.bold);
if (!mEditBold.isEnabled())
mEditBold.setChecked(false);
mEditItalic.setEnabled(mSelectedFontFamily.italic);
if (!mEditItalic.isEnabled())
mEditItalic.setChecked(false);
}
@Override
@ -114,8 +157,9 @@ public class EditTextActivity extends AppCompatActivity implements AdapterView.O
Label label = new Label();
label.setText(mEditText.getText().toString());
label.setTextSize(mTextSize);
label.setItalic(((CheckBox) findViewById(R.id.edit_italic)).isChecked());
label.setBold(((CheckBox) findViewById(R.id.edit_bold)).isChecked());
label.setFamilyName(mSelectedFontFamily.name);
label.setItalic(mEditItalic.isChecked());
label.setBold(mEditBold.isChecked());
label.setForeColor(mColorPaletteView.getColor());
return label;
}

196
app/src/main/java/om/sstvencoder/FontFamilySet.java 100644
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@ -0,0 +1,196 @@
/*
Copyright 2017 Olga Miller <olga.rgb@gmail.com>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package om.sstvencoder;
import android.support.annotation.NonNull;
import android.util.Xml;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
class FontFamilySet {
class FontFamily {
String name;
String displayName;
boolean bold;
boolean italic;
}
private final List<FontFamily> mFamilySet;
FontFamilySet() {
mFamilySet = new ArrayList<>();
fillWithSystemFonts(mFamilySet);
if (mFamilySet.size() == 0)
mFamilySet.add(getDefaultFontFamily());
}
@NonNull
private FontFamily getDefaultFontFamily() {
FontFamily defaultFontFamily = new FontFamily();
defaultFontFamily.name = null;
defaultFontFamily.displayName = "Default";
defaultFontFamily.bold = true;
defaultFontFamily.italic = true;
return defaultFontFamily;
}
@NonNull
FontFamily getFontFamily(String name) {
if (name != null) {
for (FontFamily fontFamily : mFamilySet) {
if (name.equals(fontFamily.name))
return fontFamily;
}
}
return mFamilySet.get(0);
}
@NonNull
FontFamily getFontFamilyFromDisplayName(@NonNull String displayName) {
for (FontFamily fontFamily : mFamilySet) {
if (displayName.equals(fontFamily.displayName))
return fontFamily;
}
return mFamilySet.get(0);
}
@NonNull
List<String> getFontFamilyDisplayNameList() {
List<String> names = new ArrayList<>();
for (FontFamily fontFamily : mFamilySet)
names.add(fontFamily.displayName);
return names;
}
private void fillWithSystemFonts(@NonNull List<FontFamily> familySet) {
File fontsFile = new File("/system/etc/system_fonts.xml");
if (!fontsFile.exists()) {
fontsFile = new File("/system/etc/fonts.xml");
if (!fontsFile.exists())
return;
}
InputStream in = null;
try {
in = new FileInputStream(fontsFile);
XmlPullParser parser = Xml.newPullParser();
parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
parser.setInput(in, null);
parser.next();
if (parser.getEventType() == XmlPullParser.START_TAG && parser.getName().equals("familyset"))
readFamilySet(parser, familySet);
} catch (Exception ignore) {
} finally {
if (in != null) {
try {
in.close();
} catch (Exception ignore) {
}
}
}
}
private void readFamilySet(@NonNull XmlPullParser parser, @NonNull List<FontFamily> familySet)
throws XmlPullParserException, IOException {
while (parser.next() != XmlPullParser.END_TAG) {
if (parser.getEventType() == XmlPullParser.START_TAG && parser.getName().equals("family")) {
FontFamily fontFamily = readFamily(parser);
if (fontFamily.displayName != null)
familySet.add(fontFamily);
}
}
}
@NonNull
private FontFamily readFamily(@NonNull XmlPullParser parser)
throws XmlPullParserException, IOException {
FontFamily fontFamily = new FontFamily();
while (parser.next() != XmlPullParser.END_TAG) {
if (parser.getEventType() == XmlPullParser.START_TAG) {
switch (parser.getName()) {
case "nameset":
readNameSet(parser, fontFamily);
break;
case "fileset":
readFileSet(parser, fontFamily);
break;
}
}
}
return fontFamily;
}
private void readNameSet(@NonNull XmlPullParser parser, @NonNull FontFamily fontFamily)
throws XmlPullParserException, IOException {
while (parser.next() != XmlPullParser.END_TAG) {
if (parser.getEventType() == XmlPullParser.START_TAG && parser.getName().equals("name")) {
if (fontFamily.name == null)
fontFamily.name = readText(parser);
else {
// skip all other names
parser.next();
parser.next();
}
}
}
}
private void readFileSet(@NonNull XmlPullParser parser, @NonNull FontFamily fontFamily)
throws XmlPullParserException, IOException {
while (parser.next() != XmlPullParser.END_TAG) {
if (parser.getEventType() == XmlPullParser.START_TAG && parser.getName().equals("file"))
parseDisplayNameAndStyle(readText(parser), fontFamily);
}
}
private void parseDisplayNameAndStyle(String fontFileName, @NonNull FontFamily fontFamily) {
// Example: RobotoCondensed-LightItalic.ttf
// { "RobotoCondensed", "LightItalic" }
String[] familyInfo = fontFileName.split("\\.")[0].split("-");
String s = "";
if (familyInfo.length > 1) {
s = familyInfo[1];
if (s.contains("Bold"))
fontFamily.bold = true;
if (s.contains("Italic"))
fontFamily.italic = true;
}
if (fontFamily.displayName == null) {
// "Light"
s = s.replace("Regular", "").replace("Bold", "").replace("Italic", "");
// "Roboto Condensed Light"
fontFamily.displayName = (familyInfo[0] + s).replaceAll("(\\p{Ll})(\\p{Lu})", "$1 $2");
}
}
private String readText(@NonNull XmlPullParser parser)
throws IOException, XmlPullParserException {
String text = "";
if (parser.next() == XmlPullParser.TEXT) {
text = parser.getText();
parser.next();
}
return text;
}
}

6
app/src/main/res/layout/activity_edit_text.xml
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@ -16,6 +16,12 @@
android:inputType="text"
android:textSize="32sp"/>
<Spinner
android:id="@+id/edit_font_family"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="32sp"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"