2 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 //------------------------------------------------------------------------------
21 //------------------------------------------------------------------------------
24 #include <dali-toolkit/dali-toolkit.h>
25 #include <dali-toolkit/public-api/builder/builder.h>
26 #include <dali-toolkit/public-api/builder/tree-node.h>
27 #include <dali-toolkit/public-api/builder/json-parser.h>
40 #include <dali/integration-api/debug.h>
41 #include "shared/view.h"
43 #define TOKEN_STRING(x) #x
46 using namespace Dali::Toolkit;
51 const char* BACKGROUND_IMAGE( "" );
52 const char* TOOLBAR_IMAGE( DALI_IMAGE_DIR "top-bar.png" );
53 const char* EDIT_IMAGE( DALI_IMAGE_DIR "icon-change.png" );
55 std::string USER_DIRECTORY;
57 std::string JSON_BROKEN(" \
64 'parent-origin': 'CENTER', \
65 'text':'COULD NOT LOAD JSON FILE' \
71 std::string ReplaceQuotes(const std::string &single_quoted)
73 std::string s(single_quoted);
75 // wrong as no embedded quote but had regex link problems
76 std::replace(s.begin(), s.end(), '\'', '"');
81 std::string GetFileContents(const std::string &fn)
83 std::ifstream t(fn.c_str());
84 return std::string((std::istreambuf_iterator<char>(t)),
85 std::istreambuf_iterator<char>());
88 typedef std::vector<std::string> FileList;
90 void DirectoryFileList(const std::string& directory, FileList& files)
94 d = opendir(directory.c_str());
97 while ((dir = readdir(d)) != NULL)
99 if (dir->d_type == DT_REG)
101 files.push_back( directory + std::string(dir->d_name) );
109 void DirectoryFilesByType(const std::string& dir, const std::string& fileType /* ie "json" */, FileList& files)
111 typedef FileList Collection;
112 typedef FileList::iterator Iter;
115 DirectoryFileList(dir, allFiles);
117 for(Iter iter = allFiles.begin(); iter != allFiles.end(); ++iter)
119 size_t pos = (*iter).rfind( '.' );
120 if( pos != std::string::npos )
122 if( (*iter).substr( pos+1 ) == fileType )
124 files.push_back( (*iter) );
130 const std::string ShortName( const std::string& name )
132 size_t pos = name.rfind( '/' );
134 if( pos != std::string::npos )
136 return name.substr( pos );
144 static Vector3 SetItemSize(unsigned int numberOfColumns, float layoutWidth, float sideMargin, float columnSpacing)
146 return Vector3(layoutWidth, 50, 1);
149 //------------------------------------------------------------------------------
153 //------------------------------------------------------------------------------
159 explicit FileWatcher(const std::string &fn) { SetFilename(fn) ; };
161 void SetFilename(const std::string &fn);
162 std::string GetFilename() const;
164 bool FileHasChanged(void);
165 std::string GetFileContents(void) const { return ::GetFileContents(mstringPath) ; };
169 // FileWatcher(const FileWatcher&);
170 // FileWatcher &operator=(const FileWatcher &);
172 std::time_t mLastTime;
173 std::string mstringPath;
177 FileWatcher::FileWatcher(void) : mLastTime(0)
181 bool FileWatcher::FileHasChanged(void)
185 if(0 != stat(mstringPath.c_str(), &buf))
191 if(buf.st_mtime > mLastTime)
193 mLastTime = buf.st_mtime;
198 mLastTime = buf.st_mtime;
206 FileWatcher::~FileWatcher()
210 void FileWatcher::SetFilename(const std::string &fn)
213 FileHasChanged(); // update last time
216 std::string FileWatcher::GetFilename(void) const
225 //------------------------------------------------------------------------------
229 //------------------------------------------------------------------------------
230 class ExampleApp : public ConnectionTracker, public Toolkit::ItemFactory
233 ExampleApp(Application &app) : mApp(app)
235 app.InitSignal().Connect(this, &ExampleApp::Create);
242 void SetTitle(const std::string& title)
246 mTitleActor = DemoHelper::CreateToolBarLabel( "" );
247 // Add title to the tool bar.
248 mToolBar.AddControl( mTitleActor, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarTitlePercentage, Alignment::HorizontalCenter );
251 mTitleActor.SetProperty( TextLabel::Property::TEXT, title );
254 bool OnToolSelectLayout( Toolkit::Button button )
256 bool on = mItemView.IsVisible();
270 void LeaveSelection()
275 void EnterSelection()
277 Stage stage = Stage::GetCurrent();
279 mTapDetector = TapGestureDetector::New();
280 mTapDetector.DetectedSignal().Connect( this, &ExampleApp::OnTap );
284 stage.Remove( mItemView );
289 mItemView = ItemView::New(*this);
290 stage.Add( mItemView );
291 mItemView.SetParentOrigin(ParentOrigin::CENTER);
292 mItemView.SetAnchorPoint(AnchorPoint::CENTER);
293 mGridLayout = GridLayout::New();
294 mGridLayout->SetNumberOfColumns(1);
296 mGridLayout->SetItemSizeFunction(SetItemSize);
298 mGridLayout->SetTopMargin(DemoHelper::DEFAULT_VIEW_STYLE.mToolBarHeight);
300 mItemView.AddLayout(*mGridLayout);
302 Vector3 size(stage.GetSize());
303 mItemView.ActivateLayout(0, size, 0.0f/*immediate*/);
304 mItemView.SetKeyboardFocusable( true );
309 if( USER_DIRECTORY.size() )
311 DirectoryFilesByType( USER_DIRECTORY, "json", files );
315 DirectoryFilesByType( DALI_SCRIPT_DIR, "json", files );
318 std::sort(files.begin(), files.end());
321 for(FileList::iterator iter = files.begin(); iter != files.end(); ++iter)
323 JsonParser parser = JsonParser::New();
325 std::string data( GetFileContents( *iter ) );
327 parser.Parse( data );
329 if( parser.ParseError() )
331 std::cout << "Parser Error:" << *iter << std::endl;
332 std::cout << parser.GetErrorLineNumber() << "(" << parser.GetErrorColumn() << "):" << parser.GetErrorDescription() << std::endl;
336 if( parser.GetRoot() )
338 if( const TreeNode* node = parser.GetRoot()->Find("stage") )
340 // only those with a stage section
343 mFiles.push_back( *iter );
345 mItemView.InsertItem( Item(itemId,
346 MenuItem( ShortName( *iter ) ) ),
353 std::cout << "Ignored file (stage has no nodes?):" << *iter << std::endl;
358 std::cout << "Ignored file (no stage section):" << *iter << std::endl;
363 // Display item view on the stage
364 stage.Add( mItemView );
366 mItemView.SetVisible( true );
367 mBuilderLayer.SetVisible( false );
371 // Itemview renderes the previous items unless its scrolled. Not sure why at the moment so we force a scroll
372 mItemView.ScrollToItem(0, 0);
378 mTapDetector.Reset();
380 mItemView.SetVisible( false );
381 mBuilderLayer.SetVisible( true );
386 void OnTap( Actor actor, const TapGesture& tap )
388 ItemId id = mItemView.GetItemId( actor );
390 LoadFromFileList( id );
393 Actor MenuItem(const std::string& text)
395 TextLabel label = TextLabel::New( ShortName( text ) );
396 label.SetProperty( Dali::Toolkit::Control::Property::STYLE_NAME, "builderlabel" );
397 label.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
399 // Hook up tap detector
400 mTapDetector.Attach( label );
407 if( mFileWatcher.FileHasChanged() )
409 LoadFromFile( mFileWatcher.GetFilename() );
415 void ReloadJsonFile(const std::string& filename, Builder& builder, Layer& layer)
417 Stage stage = Stage::GetCurrent();
419 builder = Builder::New();
420 builder.QuitSignal().Connect( this, &ExampleApp::OnBuilderQuit );
422 Property::Map defaultDirs;
423 defaultDirs[ TOKEN_STRING(DALI_IMAGE_DIR) ] = DALI_IMAGE_DIR;
424 defaultDirs[ TOKEN_STRING(DALI_MODEL_DIR) ] = DALI_MODEL_DIR;
425 defaultDirs[ TOKEN_STRING(DALI_SCRIPT_DIR) ] = DALI_SCRIPT_DIR;
427 builder.AddConstants( defaultDirs );
429 // render tasks may have been setup last load so remove them
430 RenderTaskList taskList = stage.GetRenderTaskList();
431 if( taskList.GetTaskCount() > 1 )
433 typedef std::vector<RenderTask> Collection;
434 typedef Collection::iterator ColIter;
437 for(unsigned int i = 1; i < taskList.GetTaskCount(); ++i)
439 tasks.push_back( taskList.GetTask(i) );
442 for(ColIter iter = tasks.begin(); iter != tasks.end(); ++iter)
444 taskList.RemoveTask(*iter);
447 RenderTask defaultTask = taskList.GetTask(0);
448 defaultTask.SetSourceActor( stage.GetRootLayer() );
449 defaultTask.SetTargetFrameBuffer( FrameBufferImage() );
452 unsigned int numChildren = layer.GetChildCount();
454 for(unsigned int i=0; i<numChildren; ++i)
456 layer.Remove( layer.GetChildAt(0) );
459 std::string data(GetFileContents(filename));
463 builder.LoadFromString(data);
467 builder.LoadFromString(ReplaceQuotes(JSON_BROKEN));
470 builder.AddActors( layer );
474 void LoadFromFileList( size_t index )
476 if( index < mFiles.size())
478 const std::string& name = mFiles[index];
479 mFileWatcher.SetFilename( name );
480 LoadFromFile( name );
484 void LoadFromFile( const std::string& name )
486 ReloadJsonFile( name, mBuilder, mBuilderLayer );
488 // do this here as GetCurrentSize()
489 mBuilderLayer.SetParentOrigin(ParentOrigin::CENTER);
490 mBuilderLayer.SetAnchorPoint(AnchorPoint::CENTER);
491 Dali::Vector3 size = Stage::GetCurrent().GetRootLayer().GetCurrentSize();
492 size.y -= DemoHelper::DEFAULT_VIEW_STYLE.mToolBarHeight;
493 mBuilderLayer.SetSize( size );
495 mBuilderLayer.LowerToBottom();
496 Stage::GetCurrent().GetRootLayer().RaiseToTop();
501 void Create(Application& app)
503 DemoHelper::RequestThemeChange();
505 Stage stage = Stage::GetCurrent();
507 Stage::GetCurrent().KeyEventSignal().Connect(this, &ExampleApp::OnKeyEvent);
509 Layer contents = DemoHelper::CreateView( app,
518 mBuilderLayer = Layer::New();
519 stage.GetRootLayer().Add(mBuilderLayer);
522 // Create an edit mode button. (left of toolbar)
523 Toolkit::PushButton editButton = Toolkit::PushButton::New();
524 editButton.SetBackgroundImage( ResourceImage::New( EDIT_IMAGE ) );
525 editButton.ClickedSignal().Connect( this, &ExampleApp::OnToolSelectLayout);
526 editButton.SetLeaveRequired( true );
527 mToolBar.AddControl( editButton, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarButtonPercentage, Toolkit::Alignment::HorizontalLeft, DemoHelper::DEFAULT_MODE_SWITCH_PADDING );
531 mTimer = Timer::New( 500 ); // ms
532 mTimer.TickSignal().Connect( this, &ExampleApp::OnTimer);
537 virtual unsigned int GetNumberOfItems()
539 return mFiles.size();
542 virtual Actor NewItem(unsigned int itemId)
544 DALI_ASSERT_DEBUG( itemId < mFiles.size() );
545 return MenuItem( ShortName( mFiles[itemId] ) );
549 * Main key event handler
551 void OnKeyEvent(const KeyEvent& event)
553 if(event.state == KeyEvent::Down)
555 if( IsKey( event, Dali::DALI_KEY_ESCAPE) || IsKey( event, Dali::DALI_KEY_BACK) )
557 if ( mItemView.IsVisible() )
570 * Event handler when Builder wants to quit (we only want to close the shown json unless we're at the top-level)
574 if ( mItemView.IsVisible() )
587 GridLayoutPtr mGridLayout;
591 unsigned int mOrientation;
593 Toolkit::ToolBar mToolBar;
594 TextLabel mTitleActor; ///< The Toolbar's Title.
598 Toolkit::Popup mMenu;
600 TapGestureDetector mTapDetector;
607 FileWatcher mFileWatcher;
613 //------------------------------------------------------------------------------
617 //------------------------------------------------------------------------------
618 int main(int argc, char **argv)
622 if(strcmp(argv[1], "-f") == 0)
624 USER_DIRECTORY = argv[2];
628 Application app = Application::New(&argc, &argv);
630 ExampleApp dali_app(app);