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Viewing changes to src/uk/digitalsquid/droidpad/layout/JsonDecoder.java

  • Committer: William Shackleton
  • Date: 2013-04-12 14:42:12 UTC
  • mfrom: (51.3.5 json)
  • mto: This revision was merged to the branch mainline in revision 52.
  • Revision ID: w.shackleton@gmail.com-20130412144212-4f7pueqwee0lc3yd
Imported code to load JSON layouts

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src/uk/digitalsquid/droidpad/layout/JsonDecoder.java
 
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/*  This file is part of DroidPad.
 
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 *
 
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 *  DroidPad is free software: you can redistribute it and/or modify
 
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 *  it under the terms of the GNU General Public License as published by
 
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 *  the Free Software Foundation, either version 3 of the License, or
 
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 *  (at your option) any later version.
 
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 *
 
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 *  DroidPad is distributed in the hope that it will be useful,
 
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 *  GNU General Public License for more details.
 
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 *
 
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 *  You should have received a copy of the GNU General Public License
 
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 *  along with DroidPad.  If not, see <http://www.gnu.org/licenses/>.
 
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 */
 
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package uk.digitalsquid.droidpad.layout;
 
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import java.io.IOException;
 
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import java.io.Reader;
 
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import java.util.Locale;
 
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import org.json.JSONArray;
 
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import org.json.JSONException;
 
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import org.json.JSONObject;
 
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import uk.digitalsquid.droidpad.LogTag;
 
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import uk.digitalsquid.droidpad.buttons.Button;
 
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import uk.digitalsquid.droidpad.buttons.Item;
 
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import uk.digitalsquid.droidpad.buttons.Layout;
 
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import uk.digitalsquid.droidpad.buttons.ModeSpec;
 
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import uk.digitalsquid.droidpad.buttons.Orientation;
 
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import uk.digitalsquid.droidpad.buttons.Slider;
 
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import uk.digitalsquid.droidpad.buttons.ToggleButton;
 
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import uk.digitalsquid.droidpad.buttons.TouchPanel;
 
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public class JsonDecoder implements LogTag {
 
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        public static final ModeSpec decodeLayout(Reader reader) throws IOException {
 
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                StringBuffer contents = new StringBuffer();
 
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                char[] buf = new char[1024];
 
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                int read = -1;
 
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                while((read = reader.read(buf)) != -1) {
 
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                        contents.append(buf, 0, read);
 
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                }
 
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                try {
 
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                        return decodeLayout(contents.toString());
 
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                } catch (JSONException e) {
 
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                        IOException e1 = new IOException("Failed to parse JSON string from reader");
 
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                        e1.initCause(e);
 
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                        throw e1;
 
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                }
 
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        }
 
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        public static final ModeSpec decodeLayout(String input) throws JSONException {
 
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                JSONObject root = new JSONObject(input);
 
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                ModeSpec result = new ModeSpec();
 
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                result.setMode(getModeId(root.optString("mode")));
 
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                String title = root.optString("name", "Custom Layout");
 
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                String description = root.optString("description", "A new custom layout");
 
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                int gridX = root.optInt("gridX", 4);
 
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                int gridY = root.optInt("gridY", 5);
 
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                // Editor size used to work out orientation
 
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                int editorWidth = root.optInt("width", 720);
 
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                int editorHeight = root.optInt("height", 405);
 
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                boolean horizontal = editorWidth > editorHeight;
 
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                Layout layout = new Layout(title, description, gridX, gridY);
 
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                layout.setActivityHorizontal(horizontal);
 
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                result.setLayout(layout);
 
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                JSONArray items = root.getJSONArray("items");
 
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                for(int i = 0; i < items.length(); i++) {
 
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                        JSONObject item = items.getJSONObject(i);
 
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                        String type = item.optString("type", "button");
 
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                        boolean gridSnap = item.optBoolean("gridSnap", true);
 
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                        // These values are integers if grid snapping, floats if not
 
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                        float x = (float)item.optDouble("x", 0);
 
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                        float y = (float)item.optDouble("y", 0);
 
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                        float width = (float)item.optDouble("width", 1);
 
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                        float height = (float)item.optDouble("height", 1);
 
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                        int textSize = item.optInt("textSize", 20);
 
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                        String text = item.optString("text");
 
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                        if(text.equals("")) text = String.format(Locale.getDefault(), "%d", i+1);
 
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                        Orientation orientation = Orientation.Both;
 
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                        String orientationType = item.optString("orientation", "both");
 
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                        if(orientationType.equals("both")) orientation = Orientation.Both;
 
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                        if(orientationType.equals("x")) orientation = Orientation.X;
 
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                        if(orientationType.equals("y")) orientation = Orientation.Y;
 
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                        Item component = null;
 
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                        if(type.equals("button")) {
 
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                                component = new Button(x, y, width, height, !gridSnap, text, textSize);
 
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                        } else if(type.equals("toggle")) {
 
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                                component = new ToggleButton(x, y, width, height, !gridSnap, text, textSize);
 
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                        } else if(type.equals("slider")) {
 
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                                component = new Slider(x, y, width, height, !gridSnap, orientation);
 
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                        } else if(type.equals("panel")) {
 
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                                component = new TouchPanel(x, y, width, height, !gridSnap, orientation);
 
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                        }
 
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                        if(component != null) layout.add(component);
 
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                }
 
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                return result;
 
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        }
 
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        static final int getModeId(String mode) {
 
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                // TODO: check these against editor
 
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                if(mode.equalsIgnoreCase("joystick")) return ModeSpec.LAYOUTS_JS;
 
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                if(mode.equalsIgnoreCase("mouse")) return ModeSpec.LAYOUTS_MOUSE;
 
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                if(mode.equalsIgnoreCase("touch")) return ModeSpec.LAYOUTS_MOUSE_ABS;
 
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                if(mode.equalsIgnoreCase("slideshow")) return ModeSpec.LAYOUTS_SLIDE;
 
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                return ModeSpec.LAYOUTS_JS;
 
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        }
 
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}