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package nz.gen.geek_central.ObjViewer;
/*
ObjViewer -- viewer for .obj files -- mainline.
Copyright 2011-2014 by Lawrence D'Oliveiro <ldo@geek-central.gen.nz>.
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.
*/
import nz.gen.geek_central.GLUseful.ObjReader;
public class Main extends android.app.Activity
{
java.util.Map<android.view.MenuItem, Runnable> OptionsMenu;
ObjectView TheObjectView;
final java.security.SecureRandom Random = new java.security.SecureRandom();
/* why use anything less */
float Rand()
/* returns a random float in [0.0 .. 1.0). */
{
final byte[] V = new byte[4];
Random.nextBytes(V);
return
(float)(
((int)V[0] & 255)
|
((int)V[1] & 255) << 8
|
((int)V[2] & 255) << 16
|
((int)V[3] & 255) << 24
)
/
4294967296.0f;
} /*Rand*/
/* request codes, all arbitrarily assigned */
static final int LoadObjectRequest = 1;
interface RequestResponseAction /* response to an activity result */
{
public void Run
(
int ResultCode,
android.content.Intent Data
);
} /*RequestResponseAction*/
java.util.Map<Integer, RequestResponseAction> ActivityResultActions;
private interface SelectedIDAction
{
public void Set
(
int SelectedID
);
} /*SelectedIDAction*/
private ObjReader.Model ReadObj
(
final String ObjFileName
)
{
ObjReader.Model Result = null;
try
{
Result = ObjReader.ReadObj
(
/*FileName =*/ ObjFileName,
/*LoadMaterials =*/
new ObjReader.MaterialLoader()
{
public ObjReader.MaterialSet Load
(
ObjReader.MaterialSet Materials,
String MatFileName
)
{
return
ObjReader.ReadMaterials
(
/*FileName =*/
new java.io.File
(
new java.io.File(ObjFileName)
.getParentFile(),
MatFileName
).getPath(),
/*CurMaterials =*/ Materials
);
} /*Load*/
} /*MaterialLoader*/
);
}
catch (ObjReader.DataFormatException Failed)
{
android.widget.Toast.makeText
(
/*context =*/ this,
/*text =*/
String.format
(
nz.gen.geek_central.GLUseful.GLUseful.StdLocale,
getString(R.string.obj_load_fail),
Failed.toString()
),
/*duration =*/ android.widget.Toast.LENGTH_SHORT
).show();
} /*try*/
return
Result;
} /*ReadObj*/
private String CurObjFileName = null;
private static final String CurFileKey = "curfile";
private class OptionsDialog
extends android.app.Dialog
implements android.content.DialogInterface.OnDismissListener
{
private final android.content.Context ctx;
private final String Title;
private final SelectedIDAction Action;
private final int InitialButtonID;
private class ButtonDef
{
final String ButtonTitle;
final int ButtonID;
public ButtonDef
(
String ButtonTitle,
int ButtonID
)
{
this.ButtonTitle = ButtonTitle;
this.ButtonID = ButtonID;
} /*ButtonDef*/
} /*ButtonDef*/
private final java.util.ArrayList<ButtonDef> TheButtonDefs =
new java.util.ArrayList<ButtonDef>();
private android.widget.RadioGroup TheButtons;
public OptionsDialog
(
android.content.Context ctx,
String Title,
SelectedIDAction Action,
int InitialButtonID
)
{
super(ctx);
this.ctx = ctx;
this.Title = Title;
this.Action = Action;
this.InitialButtonID = InitialButtonID;
} /*OptionsDialog*/
public OptionsDialog AddButton
(
String ButtonTitle,
int ButtonID
)
{
TheButtonDefs.add(new ButtonDef(ButtonTitle, ButtonID));
return
this;
} /*AddButton*/
@Override
public void onCreate
(
android.os.Bundle ToRestore
)
{
setTitle(Title);
final android.widget.LinearLayout MainLayout = new android.widget.LinearLayout(ctx);
MainLayout.setOrientation(android.widget.LinearLayout.VERTICAL);
setContentView(MainLayout);
TheButtons = new android.widget.RadioGroup(ctx);
final android.view.ViewGroup.LayoutParams ButtonLayout =
new android.view.ViewGroup.LayoutParams
(
android.view.ViewGroup.LayoutParams.FILL_PARENT,
android.view.ViewGroup.LayoutParams.WRAP_CONTENT
);
for (ButtonDef ThisButtonDef : TheButtonDefs)
{
final android.widget.RadioButton ThisButton =
new android.widget.RadioButton(ctx);
ThisButton.setText(ThisButtonDef.ButtonTitle);
ThisButton.setId(ThisButtonDef.ButtonID);
TheButtons.addView(ThisButton, TheButtons.getChildCount(), ButtonLayout);
} /*for*/
MainLayout.addView(TheButtons, ButtonLayout);
TheButtons.check(InitialButtonID);
setOnDismissListener(this);
} /*onCreate*/
@Override
public void onDismiss
(
android.content.DialogInterface TheDialog
)
{
Action.Set(TheButtons.getCheckedRadioButtonId());
} /*onDismiss*/
} /*OptionsDialog*/
@Override
public boolean onCreateOptionsMenu
(
android.view.Menu TheMenu
)
{
OptionsMenu = new java.util.HashMap<android.view.MenuItem, Runnable>();
OptionsMenu.put
(
TheMenu.add(R.string.pick_file),
new Runnable()
{
public void run()
{
startActivityForResult
(
new android.content.Intent(android.content.Intent.ACTION_PICK)
.setClass(Main.this, Picker.class)
.putExtra(Picker.ExtensionID, ".obj")
.putExtra
(
Picker.LookInID,
new String[]
{
"Models",
"Download",
}
),
LoadObjectRequest
);
} /*run*/
} /*Runnable*/
);
OptionsMenu.put
(
TheMenu.add(R.string.reset_view),
new Runnable()
{
public void run()
{
TheObjectView.ResetOrientation(true);
} /*run*/
} /*Runnable*/
);
OptionsMenu.put
(
TheMenu.add(R.string.options_lighting),
new Runnable()
{
public void run()
{
new OptionsDialog
(
/*ctx =*/ Main.this,
/*Title =*/ getString(R.string.lighting_title),
/*Action =*/
new SelectedIDAction()
{
public void Set
(
int SelectedID
)
{
TheObjectView.SetUseLighting(SelectedID != 0);
} /*Set*/
} /*SelectedIDAction*/,
/*InitialButtonID =*/ TheObjectView.GetUseLighting() ? 1 : 0
)
.AddButton(getString(R.string.on), 1)
.AddButton(getString(R.string.off), 0)
.show();
} /*run*/
} /*Runnable*/
);
OptionsMenu.put
(
TheMenu.add(R.string.options_orient_faces),
new Runnable()
{
public void run()
{
new OptionsDialog
(
/*ctx =*/ Main.this,
/*Title =*/ getString(R.string.orient_faces_title),
/*Action =*/
new SelectedIDAction()
{
public void Set
(
int SelectedID
)
{
TheObjectView.SetClockwiseFaces(SelectedID != 0);
} /*Set*/
} /*SelectedIDAction*/,
/*InitialButtonID =*/ TheObjectView.GetClockwiseFaces() ? 1 : 0
)
.AddButton(getString(R.string.anticlockwise), 0)
.AddButton(getString(R.string.clockwise), 1)
.show();
} /*run*/
} /*Runnable*/
);
OptionsMenu.put
(
TheMenu.add(R.string.random_view),
new Runnable()
{
public void run()
{
final float
X = Rand(),
Y = Rand(),
Z = Rand(),
R = (float)Math.sqrt(X * X + Y * Y + Z * Z),
Angle = Rand() * 360.0f;
TheObjectView.SetOrientation
(
new nz.gen.geek_central.GLUseful.Rotation(Angle, true, X / R, Y / R, Z / R),
true
);
} /*run*/
} /*Runnable*/
);
return
true;
} /*onCreateOptionsMenu*/
void BuildActivityResultActions()
{
ActivityResultActions = new java.util.HashMap<Integer, RequestResponseAction>();
ActivityResultActions.put
(
LoadObjectRequest,
new RequestResponseAction()
{
public void Run
(
int ResultCode,
android.content.Intent Data
)
{
/* Unfortunately I can't send this Intent directly from the Picker
without using some odd launch-mode settings to avoid another instance
of Main being created. Which is why I do it here. */
startActivity
(
new android.content.Intent(android.content.Intent.ACTION_VIEW, Data.getData())
.setClass(Main.this, Main.class)
.setFlags(android.content.Intent.FLAG_ACTIVITY_SINGLE_TOP)
);
} /*Run*/
} /*RequestResponseAction*/
);
} /*BuildActivityResultActions*/
@Override
public void onCreate
(
android.os.Bundle ToRestore
)
{
super.onCreate(ToRestore);
setContentView(R.layout.main);
TheObjectView = (ObjectView)findViewById(R.id.object_view);
BuildActivityResultActions();
final ObjReader.Model PreviousModel = (ObjReader.Model)getLastNonConfigurationInstance();
if (PreviousModel != null)
{
TheObjectView.SetObject(PreviousModel);
} /*if*/
if (ToRestore != null)
{
/* reload previously-viewed object */
CurObjFileName = ToRestore.getString(CurFileKey);
if (PreviousModel == null && CurObjFileName != null)
{
TheObjectView.SetObject(ReadObj(CurObjFileName));
} /*if*/
TheObjectView.onRestoreInstanceState(ToRestore.getParcelable("ObjectView"));
/* doesn't seem to be done by GLSurfaceView */
}
else
{
android.widget.Toast.makeText
(
/*context =*/ this,
/*text =*/ getString(R.string.startup_prompt),
/*duration =*/ android.widget.Toast.LENGTH_SHORT
).show();
} /*if*/
onNewIntent(getIntent());
} /*onCreate*/
@Override
protected void onNewIntent
(
android.content.Intent TheIntent
)
{
String Action = TheIntent.getAction();
if (Action != null)
{
Action = Action.intern();
} /*if*/
if (Action == android.content.Intent.ACTION_VIEW)
{
final String ObjFileName = TheIntent.getData().getPath();
final ObjReader.Model NewObj = ReadObj(ObjFileName);
if (NewObj != null)
{
CurObjFileName = ObjFileName;
TheObjectView.SetObject(NewObj);
} /*if*/
} /*if*/
} /*onnewIntent*/
@Override
public void onPause()
{
super.onPause();
TheObjectView.onPause();
} /*onPause*/
@Override
public void onResume()
{
super.onResume();
TheObjectView.onResume();
} /*onResume*/
@Override
public Object onRetainNonConfigurationInstance()
/* optimization to avoid re-reading .obj file */
{
return
TheObjectView.GetObject();
} /*onRetainNonConfigurationInstance*/
@Override
public void onSaveInstanceState
(
android.os.Bundle ToRestore
)
{
if (CurObjFileName != null)
{
/* remember what file I was looking at */
ToRestore.putString(CurFileKey, CurObjFileName);
} /*if*/
ToRestore.putParcelable("ObjectView", TheObjectView.onSaveInstanceState());
/* doesn't seem to be done by GLSurfaceView */
} /*onSaveInstanceState*/
@Override
public boolean onOptionsItemSelected
(
android.view.MenuItem TheItem
)
{
boolean Handled = false;
final Runnable Action = OptionsMenu.get(TheItem);
if (Action != null)
{
Action.run();
Handled = true;
} /*if*/
return
Handled;
} /*onOptionsItemSelected*/
@Override
public void onActivityResult
(
int RequestCode,
int ResultCode,
android.content.Intent Data
)
{
System.err.printf("ObjViewer.onActivityResult request %d result %d\n", RequestCode, ResultCode); /* debug */
if (ResultCode != android.app.Activity.RESULT_CANCELED)
{
final RequestResponseAction Action = ActivityResultActions.get(RequestCode);
if (Action != null)
{
Action.Run(ResultCode, Data);
} /*if*/
} /*if*/
} /*onActivityResult*/
} /*Main*/