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.
22 #include "../shared/view.h"
23 #include <dali/dali.h>
24 #include <dali-toolkit/dali-toolkit.h>
28 using namespace Dali::Toolkit;
32 const char * const BACKGROUND_IMAGE( DALI_IMAGE_DIR "background-default.png" );
33 const char * const TOOLBAR_IMAGE( DALI_IMAGE_DIR "top-bar.png" );
34 const char * const APPLICATION_TITLE( "ScrollView" );
35 const char * const EFFECT_OUTER_CUBE_IMAGE( DALI_IMAGE_DIR "icon-scroll-view-outer-cube.png" );
36 const char * const EFFECT_DEPTH_IMAGE( DALI_IMAGE_DIR "icon-scroll-view-depth.png" );
37 const char * const EFFECT_INNER_CUBE_IMAGE( DALI_IMAGE_DIR "icon-scroll-view-inner-cube.png" );
38 const char * const EFFECT_CAROUSEL_IMAGE( DALI_IMAGE_DIR "icon-scroll-view-carousel.png" );
39 const char * const EFFECT_SPIRAL_IMAGE( DALI_IMAGE_DIR "icon-scroll-view-spiral.png" );
41 const Vector3 ICON_SIZE(100.0f, 100.0f, 0.0f);
43 const char* EFFECT_MODE_NAME[] = {
52 const char * const IMAGE_PATHS[] = {
53 DALI_IMAGE_DIR "gallery-medium-1.jpg",
54 DALI_IMAGE_DIR "gallery-medium-2.jpg",
55 DALI_IMAGE_DIR "gallery-medium-3.jpg",
56 DALI_IMAGE_DIR "gallery-medium-4.jpg",
57 DALI_IMAGE_DIR "gallery-medium-5.jpg",
58 DALI_IMAGE_DIR "gallery-medium-6.jpg",
59 DALI_IMAGE_DIR "gallery-medium-7.jpg",
60 DALI_IMAGE_DIR "gallery-medium-8.jpg",
61 DALI_IMAGE_DIR "gallery-medium-9.jpg",
62 DALI_IMAGE_DIR "gallery-medium-10.jpg",
63 DALI_IMAGE_DIR "gallery-medium-11.jpg",
64 DALI_IMAGE_DIR "gallery-medium-12.jpg",
65 DALI_IMAGE_DIR "gallery-medium-13.jpg",
66 DALI_IMAGE_DIR "gallery-medium-14.jpg",
67 DALI_IMAGE_DIR "gallery-medium-15.jpg",
68 DALI_IMAGE_DIR "gallery-medium-16.jpg",
69 DALI_IMAGE_DIR "gallery-medium-17.jpg",
70 DALI_IMAGE_DIR "gallery-medium-18.jpg",
71 DALI_IMAGE_DIR "gallery-medium-19.jpg",
72 DALI_IMAGE_DIR "gallery-medium-20.jpg",
73 DALI_IMAGE_DIR "gallery-medium-21.jpg",
74 DALI_IMAGE_DIR "gallery-medium-22.jpg",
75 DALI_IMAGE_DIR "gallery-medium-23.jpg",
76 DALI_IMAGE_DIR "gallery-medium-24.jpg",
77 DALI_IMAGE_DIR "gallery-medium-25.jpg",
78 DALI_IMAGE_DIR "gallery-medium-26.jpg",
79 DALI_IMAGE_DIR "gallery-medium-27.jpg",
80 DALI_IMAGE_DIR "gallery-medium-28.jpg",
81 DALI_IMAGE_DIR "gallery-medium-29.jpg",
82 DALI_IMAGE_DIR "gallery-medium-30.jpg",
83 DALI_IMAGE_DIR "gallery-medium-31.jpg",
84 DALI_IMAGE_DIR "gallery-medium-32.jpg",
85 DALI_IMAGE_DIR "gallery-medium-33.jpg",
86 DALI_IMAGE_DIR "gallery-medium-34.jpg",
87 DALI_IMAGE_DIR "gallery-medium-35.jpg",
88 DALI_IMAGE_DIR "gallery-medium-36.jpg",
89 DALI_IMAGE_DIR "gallery-medium-37.jpg",
90 DALI_IMAGE_DIR "gallery-medium-38.jpg",
91 DALI_IMAGE_DIR "gallery-medium-39.jpg",
92 DALI_IMAGE_DIR "gallery-medium-40.jpg",
93 DALI_IMAGE_DIR "gallery-medium-41.jpg",
94 DALI_IMAGE_DIR "gallery-medium-42.jpg",
95 DALI_IMAGE_DIR "gallery-medium-43.jpg",
96 DALI_IMAGE_DIR "gallery-medium-44.jpg",
97 DALI_IMAGE_DIR "gallery-medium-45.jpg",
98 DALI_IMAGE_DIR "gallery-medium-46.jpg",
99 DALI_IMAGE_DIR "gallery-medium-47.jpg",
100 DALI_IMAGE_DIR "gallery-medium-48.jpg",
101 DALI_IMAGE_DIR "gallery-medium-49.jpg",
102 DALI_IMAGE_DIR "gallery-medium-50.jpg",
103 DALI_IMAGE_DIR "gallery-medium-51.jpg",
104 DALI_IMAGE_DIR "gallery-medium-52.jpg",
105 DALI_IMAGE_DIR "gallery-medium-53.jpg",
110 const char * const GetNextImagePath()
112 static const char * const * imagePtr = &IMAGE_PATHS[0];
114 if ( *(++imagePtr) == NULL )
116 imagePtr = &IMAGE_PATHS[0];
122 const int PAGE_COLUMNS = 10; ///< Number of Pages going across (columns)
123 const int PAGE_ROWS = 1; ///< Number of Pages going down (rows)
124 const int IMAGE_COLUMNS = 3; ///< Number of Images going across (columns) within a Page
125 const int IMAGE_ROWS = 5; ///< Number of Images going down (rows) with a Page
127 // 3D Effect constants
128 const Vector3 ANGLE_CUBE_PAGE_ROTATE(Math::PI * 0.2f, Math::PI * 0.2f, 0.0f); ///< Cube page rotates as if it has ten sides with the camera positioned inside
129 const Vector2 ANGLE_CUSTOM_CUBE_SWING(-Math::PI * 0.45f, -Math::PI * 0.45f); ///< outer cube pages swing 90 degrees as they pan offscreen
130 const Vector2 ANGLE_SPIRAL_SWING_IN(Math::PI * 0.45f, Math::PI * 0.45f);
131 const Vector2 ANGLE_SPIRAL_SWING_OUT(Math::PI * 0.3f, Math::PI * 0.3f);
133 // Depth Effect constants
134 const Vector2 POSITION_EXTENT_DEPTH_EFFECT(0.5f, 2.5f); ///< Extent of X & Y position to alter function exponent.
135 const Vector2 OFFSET_EXTENT_DEPTH_EFFECT(1.0f, 1.0f); ///< Function exponent offset constant.
136 const float POSITION_SCALE_DEPTH_EFFECT(1.5f); ///< Position scaling.
137 const float SCALE_EXTENT_DEPTH_EFFECT(0.5f); ///< Maximum scale factor when Actors scrolled one page away (50% size)
139 // 3D Effect constants
140 const Vector2 ANGLE_SWING_3DEFFECT(Math::PI_2 * 0.75, Math::PI_2 * 0.75f); ///< Angle Swing in radians
141 const Vector2 POSITION_SWING_3DEFFECT(0.25f, 0.25f); ///< Position Swing relative to stage size.
142 const Vector3 ANCHOR_3DEFFECT_STYLE0(-105.0f, 30.0f, -240.0f); ///< Rotation Anchor position for 3D Effect (Style 0)
143 const Vector3 ANCHOR_3DEFFECT_STYLE1(65.0f, -70.0f, -300.0f); ///< Rotation Anchor position for 3D Effect (Style 1)
146 const unsigned int IMAGE_THUMBNAIL_WIDTH = 256; ///< Width of Thumbnail Image in texels
147 const unsigned int IMAGE_THUMBNAIL_HEIGHT = 256; ///< Height of Thumbnail Image in texels
149 const float SPIN_DURATION = 5.0f; ///< Times to spin an Image by upon touching, each spin taking a second.
151 const float EFFECT_SNAP_DURATION(0.66f); ///< Scroll Snap Duration for Effects
152 const float EFFECT_FLICK_DURATION(0.5f); ///< Scroll Flick Duration for Effects
154 } // unnamed namespace
157 * This example shows how to do custom Scroll Effects
159 class ExampleController : public ConnectionTracker
165 * @param application class, stored as reference
167 ExampleController( Application& application )
168 : mApplication( application ),
171 mEffectMode(CubeEffect)
173 // Connect to the Application's Init and orientation changed signal
174 mApplication.InitSignal().Connect(this, &ExampleController::OnInit);
179 // Nothing to do here; everything gets deleted automatically
183 * This method gets called once the main loop of application is up and running
185 void OnInit(Application& app)
187 Stage::GetCurrent().KeyEventSignal().Connect(this, &ExampleController::OnKeyEvent);
189 // Hide the indicator bar
190 mApplication.GetWindow().ShowIndicator(false);
192 // Creates a default view with a default tool bar.
193 // The view is added to the stage.
195 mContentLayer = DemoHelper::CreateView( app,
202 mEffectIcon[ OuterCubeEffect ] = Image::New( EFFECT_OUTER_CUBE_IMAGE );
203 mEffectIcon[ DepthEffect ] = Image::New( EFFECT_DEPTH_IMAGE );
204 mEffectIcon[ CubeEffect ] = Image::New( EFFECT_INNER_CUBE_IMAGE );
205 mEffectIcon[ InnerCubeEffect ] = Image::New( EFFECT_INNER_CUBE_IMAGE );
206 mEffectIcon[ CarouselEffect ] = Image::New( EFFECT_CAROUSEL_IMAGE );
207 mEffectIcon[ SpiralEffect ] = Image::New( EFFECT_SPIRAL_IMAGE );
209 // Create a effect change button. (right of toolbar)
210 mEffectChangeButton = Toolkit::PushButton::New();
211 mEffectChangeButton.ClickedSignal().Connect( this, &ExampleController::OnEffectTouched );
212 mToolBar.AddControl( mEffectChangeButton, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarButtonPercentage, Toolkit::Alignment::HorizontalRight, DemoHelper::DEFAULT_MODE_SWITCH_PADDING );
214 // Create the content layer.
217 // Hack to force screen refresh.
218 Animation animation = Animation::New(1.0f);
219 animation.AnimateTo(Property(mContentLayer, Actor::POSITION), Vector3::ZERO );
226 * Adds content to the ContentLayer. This is everything we see
227 * excluding the toolbar at the top.
229 void AddContentLayer()
231 Stage stage = Stage::GetCurrent();
232 Vector2 stageSize = stage.GetSize();
234 mScrollView = ScrollView::New();
235 mScrollView.SetAnchorPoint(AnchorPoint::CENTER);
236 mScrollView.SetParentOrigin(ParentOrigin::CENTER);
237 mContentLayer.Add( mScrollView );
238 mScrollView.SetSize( stageSize );
239 mScrollView.SetAxisAutoLock( true );
240 mScrollView.SetAxisAutoLockGradient( 1.0f );
242 mScrollView.ScrollStartedSignal().Connect( this, &ExampleController::OnScrollStarted );
243 mScrollView.ScrollCompletedSignal().Connect( this, &ExampleController::OnScrollCompleted );
245 for(int row = 0;row<PAGE_ROWS;row++)
247 for(int column = 0;column<PAGE_COLUMNS;column++)
249 Actor page = CreatePage();
251 page.SetPosition( column * stageSize.x, row * stageSize.y );
252 mScrollView.Add( page );
254 mPages.push_back(page);
262 * Updates the ScrollView and it's children based
263 * on the current effect.
267 std::stringstream ss(APPLICATION_TITLE);
268 ss << APPLICATION_TITLE << ": " << EFFECT_MODE_NAME[mEffectMode];
271 mEffectChangeButton.SetBackgroundImage( mEffectIcon[ mEffectMode ] );
273 // remove old Effect if exists.
274 if(mScrollViewEffect)
276 mScrollView.RemoveEffect(mScrollViewEffect);
279 // apply new Effect to ScrollView
280 ApplyEffectToScrollView();
282 for(ActorIter pageIter = mPages.begin(); pageIter != mPages.end(); ++pageIter)
284 Actor page = *pageIter;
285 ApplyEffectToPage( page );
287 unsigned int numChildren = (*pageIter).GetChildCount();
288 for(unsigned int i=0; i<numChildren; ++i)
290 Actor image = (*pageIter).GetChildAt(i);
292 // Remove old effect's manual constraints.
293 image.RemoveConstraints();
295 // Apply new effect's manual constraints.
296 ApplyEffectToActor( image, page );
302 * Creates a page using a source of images.
306 Actor page = Actor::New();
307 page.ApplyConstraint( Constraint::New<Vector3>( Actor::SIZE, ParentSource( Actor::SIZE ), EqualToConstraint() ) );
308 page.SetParentOrigin( ParentOrigin::CENTER );
309 page.SetAnchorPoint( AnchorPoint::CENTER );
311 Stage stage = Stage::GetCurrent();
312 Vector2 stageSize = stage.GetSize();
314 const float margin = 10.0f;
316 const Vector3 imageSize((stageSize.x / IMAGE_COLUMNS) - margin, (stageSize.y / IMAGE_ROWS) - margin, 0.0f);
318 for(int row = 0;row<IMAGE_ROWS;row++)
320 for(int column = 0;column<IMAGE_COLUMNS;column++)
322 ImageActor image = CreateImage( GetNextImagePath() );
324 image.SetParentOrigin( ParentOrigin::CENTER );
325 image.SetAnchorPoint( AnchorPoint::CENTER );
327 Vector3 position( margin * 0.5f + (imageSize.x + margin) * column - stageSize.width * 0.5f,
328 margin * 0.5f + (imageSize.y + margin) * row - stageSize.height * 0.5f,
330 image.SetPosition( position + imageSize * 0.5f );
331 image.SetSize( imageSize );
341 * Applies effect to scrollView
343 void ApplyEffectToScrollView()
348 Stage stage = Stage::GetCurrent();
349 Vector2 stageSize = stage.GetSize();
353 case OuterCubeEffect:
355 SetupOuterPageCubeEffect();
361 mScrollViewEffect = ScrollViewDepthEffect::New();
362 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
363 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
364 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOut);
365 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOut);
366 mScrollView.RemoveConstraintsFromChildren();
371 mScrollViewEffect = ScrollViewCubeEffect::New();
372 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
373 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
374 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOutBack);
375 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOutBack);
376 mScrollView.RemoveConstraintsFromChildren();
380 case InnerCubeEffect:
382 SetupInnerPageCubeEffect();
388 SetupCarouselPageEffect();
394 SetupSpiralPageEffect();
404 if(mScrollViewEffect)
406 mScrollView.ApplyEffect(mScrollViewEffect);
409 mScrollView.SetWrapMode(wrap);
411 RulerPtr rulerX = CreateRuler(snap ? stageSize.width : 0.0f);
412 RulerPtr rulerY = new DefaultRuler;
413 rulerX->SetDomain(RulerDomain(0.0f, stageSize.x * PAGE_COLUMNS, !wrap));
416 mScrollView.SetRulerX( rulerX );
417 mScrollView.SetRulerY( rulerY );
421 * Creates a Ruler that snaps to a specified grid size.
422 * If that grid size is 0.0 then this ruler does not
425 * @param[in] gridSize (optional) The grid size for the ruler,
426 * (Default = 0.0 i.e. no snapping)
427 * @return The ruler is returned.
429 RulerPtr CreateRuler(float gridSize = 0.0f)
431 if(gridSize <= Math::MACHINE_EPSILON_0)
433 return new DefaultRuler();
435 return new FixedRuler(gridSize);
438 void SetupInnerPageCubeEffect()
440 ScrollViewCustomEffect customEffect;
441 mScrollViewEffect = customEffect = ScrollViewCustomEffect::New();
442 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
443 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
444 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOutBack);
445 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOutBack);
446 mScrollView.RemoveConstraintsFromChildren();
448 customEffect.SetPageSpacing(Vector2(30.0f, 30.0f));
449 customEffect.SetAngledOriginPageRotation(ANGLE_CUBE_PAGE_ROTATE);
450 customEffect.SetSwingAngle(ANGLE_CUBE_PAGE_ROTATE.x, Vector3(0,-1,0));
451 customEffect.SetOpacityThreshold(0.7f);
454 void SetupOuterPageCubeEffect()
456 ScrollViewCustomEffect customEffect;
457 mScrollViewEffect = customEffect = ScrollViewCustomEffect::New();
458 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
459 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
460 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOut);
461 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOut);
462 mScrollView.RemoveConstraintsFromChildren();
464 Vector2 pageSize = Stage::GetCurrent().GetSize();
465 customEffect.SetPageTranslation(Vector3(pageSize.x, pageSize.y, 0));
466 customEffect.SetSwingAngleOut(ANGLE_CUSTOM_CUBE_SWING.x, Vector3(0.0f, -1.0f, 0.0f));
467 customEffect.SetSwingAnchor(AnchorPoint::CENTER, AnchorPoint::CENTER_LEFT);
468 customEffect.SetOpacityThreshold(0.5f);
471 void SetupCarouselPageEffect()
473 ScrollViewCustomEffect customEffect;
474 mScrollViewEffect = customEffect = ScrollViewCustomEffect::New();
475 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
476 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
477 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOutBack);
478 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOutBack);
479 mScrollView.RemoveConstraintsFromChildren();
481 customEffect.SetPageTranslation(Vector3(0,0,0), Vector3(-30, 0, 0));
482 customEffect.SetPageSpacing(Vector2(60.0f, 60.0f));
483 customEffect.SetAngledOriginPageRotation(-ANGLE_CUBE_PAGE_ROTATE);
484 customEffect.SetOpacityThreshold(0.2f, 0.6f);
487 void SetupSpiralPageEffect()
489 ScrollViewCustomEffect customEffect;
490 mScrollViewEffect = customEffect = ScrollViewCustomEffect::New();
491 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
492 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
493 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOutBack);
494 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOutBack);
495 mScrollView.RemoveConstraintsFromChildren();
497 Vector2 pageSize = Stage::GetCurrent().GetSize();
498 customEffect.SetPageTranslation(Vector3(pageSize.x, pageSize.y, 0.0f));
499 customEffect.SetSwingAngle(-ANGLE_SPIRAL_SWING_IN.x, Vector3(0.0f, -1.0f, 0.0f), ANGLE_SPIRAL_SWING_OUT.x, Vector3(0.0f, -1.0f, 0.0f));
500 customEffect.SetSwingAnchor(AnchorPoint::CENTER_RIGHT);
501 customEffect.SetPageTranslation(Vector3(pageSize.x, pageSize.y, 0), Vector3(pageSize.x, pageSize.y, 0) * 0.5f);
502 customEffect.SetOpacityThreshold(0.66f);
507 * Applies effect to the pages within scroll view.
509 * @param[in] page The page Actor to apply effect to.
511 void ApplyEffectToPage(Actor page)
513 page.RemoveConstraints();
514 page.ApplyConstraint( Constraint::New<Vector3>( Actor::SIZE, ParentSource( Actor::SIZE ), EqualToConstraint() ) );
516 if( ( mEffectMode == InnerCubeEffect ) ||
517 ( mEffectMode == OuterCubeEffect ) ||
518 ( mEffectMode == SpiralEffect ) ||
519 ( mEffectMode == CarouselEffect) )
521 ApplyCustomEffectToPage(page);
525 void ApplyCustomEffectToPage(Actor page)
527 ScrollViewCustomEffect customEffect = ScrollViewCustomEffect::DownCast(mScrollViewEffect);
528 Vector2 vStageSize(Stage::GetCurrent().GetSize());
529 customEffect.ApplyToPage(page, Vector3(vStageSize.x, vStageSize.y, 1.0f));
534 * Applies effect to child which resides in page (which in turn resides in scrollview)
536 * @note Page is typically the Parent of child, although in
537 * some scenarios Page is simply a container which has a child as
540 * @param[in] child The child actor to apply effect to
541 * @param[in] page The page which this child is inside
543 void ApplyEffectToActor( Actor child, Actor page )
545 if( mEffectMode == DepthEffect )
547 ApplyDepthEffectToActor( child );
549 else if(mEffectMode == CubeEffect )
551 ApplyCubeEffectToActor( child );
556 * Applies depth effect to the child which resides in page (which in turn resides in scrollview)
558 * @param[in] child The child actor to apply depth effect to
560 void ApplyDepthEffectToActor( Actor child )
562 ScrollViewDepthEffect depthEffect = ScrollViewDepthEffect::DownCast(mScrollViewEffect);
563 depthEffect.ApplyToActor( child,
564 POSITION_EXTENT_DEPTH_EFFECT,
565 OFFSET_EXTENT_DEPTH_EFFECT,
566 POSITION_SCALE_DEPTH_EFFECT,
567 SCALE_EXTENT_DEPTH_EFFECT );
570 void ApplyCubeEffectToActor( Actor child )
575 anchor = ANCHOR_3DEFFECT_STYLE0;
579 anchor = ANCHOR_3DEFFECT_STYLE1;
582 ScrollViewCubeEffect cubeEffect = ScrollViewCubeEffect::DownCast(mScrollViewEffect);
583 cubeEffect.ApplyToActor( child,
585 ANGLE_SWING_3DEFFECT,
586 POSITION_SWING_3DEFFECT * Vector2(Stage::GetCurrent().GetSize()));
590 * Creates an Image (Helper)
592 * @param[in] filename the path of the image.
593 * @param[in] width the width of the image in texels
594 * @param[in] height the height of the image in texels.
596 ImageActor CreateImage( const std::string& filename, unsigned int width = IMAGE_THUMBNAIL_WIDTH, unsigned int height = IMAGE_THUMBNAIL_HEIGHT )
598 ImageAttributes attributes;
600 attributes.SetSize(width, height);
601 attributes.SetScalingMode(ImageAttributes::ShrinkToFit);
602 Image img = Image::New(filename, attributes);
603 ImageActor actor = ImageActor::New(img);
604 actor.SetName( filename );
605 actor.SetParentOrigin(ParentOrigin::CENTER);
606 actor.SetAnchorPoint(AnchorPoint::CENTER);
608 actor.TouchedSignal().Connect( this, &ExampleController::OnTouchImage );
613 * When scroll starts (i.e. user starts to drag scrollview),
614 * note this state (mScrolling = true)
615 * @param[in] position Current Scroll Position
617 void OnScrollStarted( const Vector3& position )
623 * When scroll starts (i.e. user stops dragging scrollview, and scrollview has snapped to destination),
624 * note this state (mScrolling = false)
625 * @param[in] position Current Scroll Position
627 void OnScrollCompleted( const Vector3& position )
633 * Upon Touching an image (Release), make it spin
634 * (provided we're not scrolling).
635 * @param[in] actor The actor touched
636 * @param[in] event The TouchEvent.
638 bool OnTouchImage( Actor actor, const TouchEvent& event )
640 if( (event.points.size() > 0) && (!mScrolling) )
642 TouchPoint point = event.points[0];
643 if(point.state == TouchPoint::Up)
645 // Spin the Image a few times.
646 Animation animation = Animation::New(SPIN_DURATION);
647 animation.RotateBy( actor, Degree(360.0f * SPIN_DURATION), Vector3::XAXIS, AlphaFunctions::EaseOut);
655 * Signal handler, called when the 'Effect' button has been touched.
657 * @param[in] button The button that was pressed.
659 bool OnEffectTouched(Button button)
661 mEffectMode = static_cast<EffectMode>((static_cast<int>(mEffectMode) + 1) % static_cast<int>(Total));
667 * Sets/Updates the title of the View
668 * @param[in] title The new title for the view.
670 void SetTitle(const std::string& title)
674 mTitleActor = TextView::New();
675 // Add title to the tool bar.
676 mToolBar.AddControl( mTitleActor, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarTitlePercentage, Alignment::HorizontalCenter );
679 Font font = Font::New();
680 mTitleActor.SetText( title );
681 mTitleActor.SetSize( font.MeasureText( title ) );
682 mTitleActor.SetStyleToCurrentText(DemoHelper::GetDefaultTextStyle());
686 * Main key event handler
688 void OnKeyEvent(const KeyEvent& event)
690 if(event.state == KeyEvent::Down)
692 if( IsKey( event, Dali::DALI_KEY_ESCAPE) || IsKey( event, Dali::DALI_KEY_BACK) )
701 Application& mApplication; ///< Application instance
702 Toolkit::View mView; ///< The View instance.
703 Toolkit::ToolBar mToolBar; ///< The View's Toolbar.
704 TextView mTitleActor; ///< The Toolbar's Title.
705 Layer mContentLayer; ///< The content layer (contains game actors)
706 ScrollView mScrollView; ///< ScrollView UI Component
707 bool mScrolling; ///< ScrollView scrolling state (true = scrolling, false = stationary)
708 ScrollViewEffect mScrollViewEffect; ///< ScrollView Effect instance.
709 ActorContainer mPages; ///< Keeps track of all the pages for applying effects.
712 * Enumeration of different effects this scrollview can operate under.
716 OuterCubeEffect, ///< Outer Cube Effect
717 DepthEffect, ///< Depth Effect
718 CubeEffect, ///< Cube effect
719 InnerCubeEffect, ///< Page Cube Effect
720 CarouselEffect, ///< Page Carousel Effect
721 SpiralEffect, ///< Page Spiral Effect
726 EffectMode mEffectMode; ///< Current Effect mode
728 Image mEffectIcon[Total]; ///< Icons for the effect button
729 Toolkit::PushButton mEffectChangeButton; ///< Effect Change Button
732 int main(int argc, char **argv)
734 Application app = Application::New(&argc, &argv);
735 ExampleController test(app);