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_ROWS = 5; ///< Number of Images going down (rows) with a Page
126 // 3D Effect constants
127 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
128 const Vector2 ANGLE_CUSTOM_CUBE_SWING(-Math::PI * 0.45f, -Math::PI * 0.45f); ///< outer cube pages swing 90 degrees as they pan offscreen
129 const Vector2 ANGLE_SPIRAL_SWING_IN(Math::PI * 0.45f, Math::PI * 0.45f);
130 const Vector2 ANGLE_SPIRAL_SWING_OUT(Math::PI * 0.3f, Math::PI * 0.3f);
132 // Depth Effect constants
133 const Vector2 POSITION_EXTENT_DEPTH_EFFECT(0.5f, 2.5f); ///< Extent of X & Y position to alter function exponent.
134 const Vector2 OFFSET_EXTENT_DEPTH_EFFECT(1.0f, 1.0f); ///< Function exponent offset constant.
135 const float POSITION_SCALE_DEPTH_EFFECT(1.5f); ///< Position scaling.
136 const float SCALE_EXTENT_DEPTH_EFFECT(0.5f); ///< Maximum scale factor when Actors scrolled one page away (50% size)
138 // 3D Effect constants
139 const Vector2 ANGLE_SWING_3DEFFECT(Math::PI_2 * 0.75, Math::PI_2 * 0.75f); ///< Angle Swing in radians
140 const Vector2 POSITION_SWING_3DEFFECT(0.25f, 0.25f); ///< Position Swing relative to stage size.
141 const Vector3 ANCHOR_3DEFFECT_STYLE0(-105.0f, 30.0f, -240.0f); ///< Rotation Anchor position for 3D Effect (Style 0)
142 const Vector3 ANCHOR_3DEFFECT_STYLE1(65.0f, -70.0f, -300.0f); ///< Rotation Anchor position for 3D Effect (Style 1)
145 const unsigned int IMAGE_THUMBNAIL_WIDTH = 256; ///< Width of Thumbnail Image in texels
146 const unsigned int IMAGE_THUMBNAIL_HEIGHT = 256; ///< Height of Thumbnail Image in texels
148 const float SPIN_DURATION = 5.0f; ///< Times to spin an Image by upon touching, each spin taking a second.
150 const float EFFECT_SNAP_DURATION(0.66f); ///< Scroll Snap Duration for Effects
151 const float EFFECT_FLICK_DURATION(0.5f); ///< Scroll Flick Duration for Effects
153 } // unnamed namespace
156 * This example shows how to do custom Scroll Effects
158 class ExampleController : public ConnectionTracker
164 * @param application class, stored as reference
166 ExampleController( Application& application )
167 : mApplication( application ),
170 mEffectMode(CubeEffect)
172 // Connect to the Application's Init and orientation changed signal
173 mApplication.InitSignal().Connect(this, &ExampleController::OnInit);
178 // Nothing to do here; everything gets deleted automatically
182 * This method gets called once the main loop of application is up and running
184 void OnInit(Application& app)
186 Stage stage = Dali::Stage::GetCurrent();
187 stage.KeyEventSignal().Connect(this, &ExampleController::OnKeyEvent);
189 // Hide the indicator bar
190 mApplication.GetWindow().ShowIndicator(Dali::Window::INVISIBLE);
192 // Creates a default view with a default tool bar.
193 // The view is added to the stage.
194 mContentLayer = DemoHelper::CreateView( app,
201 mEffectIcon[ OuterCubeEffect ] = Image::New( EFFECT_OUTER_CUBE_IMAGE );
202 mEffectIcon[ DepthEffect ] = Image::New( EFFECT_DEPTH_IMAGE );
203 mEffectIcon[ CubeEffect ] = Image::New( EFFECT_INNER_CUBE_IMAGE );
204 mEffectIcon[ InnerCubeEffect ] = Image::New( EFFECT_INNER_CUBE_IMAGE );
205 mEffectIcon[ CarouselEffect ] = Image::New( EFFECT_CAROUSEL_IMAGE );
206 mEffectIcon[ SpiralEffect ] = Image::New( EFFECT_SPIRAL_IMAGE );
208 // Create a effect change button. (right of toolbar)
209 mEffectChangeButton = Toolkit::PushButton::New();
210 mEffectChangeButton.ClickedSignal().Connect( this, &ExampleController::OnEffectTouched );
211 mToolBar.AddControl( mEffectChangeButton, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarButtonPercentage, Toolkit::Alignment::HorizontalRight, DemoHelper::DEFAULT_MODE_SWITCH_PADDING );
213 // Create the content layer.
216 // Hack to force screen refresh.
217 Animation animation = Animation::New(1.0f);
218 animation.AnimateTo(Property(mContentLayer, Actor::POSITION), Vector3::ZERO );
225 * Adds content to the ContentLayer. This is everything we see
226 * excluding the toolbar at the top.
228 void AddContentLayer()
230 Stage stage = Stage::GetCurrent();
231 Vector2 stageSize = stage.GetSize();
233 mScrollView = ScrollView::New();
234 mScrollView.SetAnchorPoint(AnchorPoint::CENTER);
235 mScrollView.SetParentOrigin(ParentOrigin::CENTER);
236 mContentLayer.Add( mScrollView );
237 mScrollView.SetSize( stageSize );
238 mScrollView.SetAxisAutoLock( true );
239 mScrollView.SetAxisAutoLockGradient( 1.0f );
241 mScrollView.ScrollStartedSignal().Connect( this, &ExampleController::OnScrollStarted );
242 mScrollView.ScrollCompletedSignal().Connect( this, &ExampleController::OnScrollCompleted );
244 for(int row = 0;row<PAGE_ROWS;row++)
246 for(int column = 0;column<PAGE_COLUMNS;column++)
248 Actor page = CreatePage();
250 page.SetPosition( column * stageSize.x, row * stageSize.y );
251 mScrollView.Add( page );
253 mPages.push_back(page);
261 * Updates the ScrollView and it's children based
262 * on the current effect.
266 std::stringstream ss(APPLICATION_TITLE);
267 ss << APPLICATION_TITLE << ": " << EFFECT_MODE_NAME[mEffectMode];
270 mEffectChangeButton.SetBackgroundImage( mEffectIcon[ mEffectMode ] );
272 // remove old Effect if exists.
273 if(mScrollViewEffect)
275 mScrollView.RemoveEffect(mScrollViewEffect);
278 // apply new Effect to ScrollView
279 ApplyEffectToScrollView();
281 for(ActorIter pageIter = mPages.begin(); pageIter != mPages.end(); ++pageIter)
283 Actor page = *pageIter;
284 ApplyEffectToPage( page );
286 unsigned int numChildren = (*pageIter).GetChildCount();
287 for(unsigned int i=0; i<numChildren; ++i)
289 Actor image = (*pageIter).GetChildAt(i);
291 // Remove old effect's manual constraints.
292 image.RemoveConstraints();
294 // Apply new effect's manual constraints.
295 ApplyEffectToActor( image, page );
301 * Creates a page using a source of images.
305 Actor page = Actor::New();
306 page.ApplyConstraint( Constraint::New<Vector3>( Actor::SIZE, ParentSource( Actor::SIZE ), EqualToConstraint() ) );
307 page.SetParentOrigin( ParentOrigin::CENTER );
308 page.SetAnchorPoint( AnchorPoint::CENTER );
310 Stage stage = Stage::GetCurrent();
311 Vector2 stageSize = stage.GetSize();
313 const float margin = 10.0f;
315 // Calculate the number of images going across (columns) within a page, according to the screen resolution and dpi.
316 int imageColumns = round(IMAGE_ROWS * (stageSize.x / stage.GetDpi().x) / (stageSize.y / stage.GetDpi().y));
317 const Vector3 imageSize((stageSize.x / imageColumns) - margin, (stageSize.y / IMAGE_ROWS) - margin, 0.0f);
319 for(int row = 0;row<IMAGE_ROWS;row++)
321 for(int column = 0;column<imageColumns;column++)
323 ImageActor image = CreateImage( GetNextImagePath() );
325 image.SetParentOrigin( ParentOrigin::CENTER );
326 image.SetAnchorPoint( AnchorPoint::CENTER );
328 Vector3 position( margin * 0.5f + (imageSize.x + margin) * column - stageSize.width * 0.5f,
329 margin * 0.5f + (imageSize.y + margin) * row - stageSize.height * 0.5f,
331 image.SetPosition( position + imageSize * 0.5f );
332 image.SetSize( imageSize );
342 * Applies effect to scrollView
344 void ApplyEffectToScrollView()
349 Stage stage = Stage::GetCurrent();
350 Vector2 stageSize = stage.GetSize();
354 case OuterCubeEffect:
356 SetupOuterPageCubeEffect();
362 mScrollViewEffect = ScrollViewDepthEffect::New();
363 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
364 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
365 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOut);
366 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOut);
367 mScrollView.RemoveConstraintsFromChildren();
372 mScrollViewEffect = ScrollViewCubeEffect::New();
373 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
374 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
375 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOutBack);
376 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOutBack);
377 mScrollView.RemoveConstraintsFromChildren();
381 case InnerCubeEffect:
383 SetupInnerPageCubeEffect();
389 SetupCarouselPageEffect();
395 SetupSpiralPageEffect();
405 if(mScrollViewEffect)
407 mScrollView.ApplyEffect(mScrollViewEffect);
410 mScrollView.SetWrapMode(wrap);
412 RulerPtr rulerX = CreateRuler(snap ? stageSize.width : 0.0f);
413 RulerPtr rulerY = new DefaultRuler;
414 rulerX->SetDomain(RulerDomain(0.0f, stageSize.x * PAGE_COLUMNS, !wrap));
417 mScrollView.SetRulerX( rulerX );
418 mScrollView.SetRulerY( rulerY );
422 * Creates a Ruler that snaps to a specified grid size.
423 * If that grid size is 0.0 then this ruler does not
426 * @param[in] gridSize (optional) The grid size for the ruler,
427 * (Default = 0.0 i.e. no snapping)
428 * @return The ruler is returned.
430 RulerPtr CreateRuler(float gridSize = 0.0f)
432 if(gridSize <= Math::MACHINE_EPSILON_0)
434 return new DefaultRuler();
436 return new FixedRuler(gridSize);
439 void SetupInnerPageCubeEffect()
441 ScrollViewCustomEffect customEffect;
442 mScrollViewEffect = customEffect = ScrollViewCustomEffect::New();
443 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
444 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
445 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOutBack);
446 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOutBack);
447 mScrollView.RemoveConstraintsFromChildren();
449 customEffect.SetPageSpacing(Vector2(30.0f, 30.0f));
450 customEffect.SetAngledOriginPageRotation(ANGLE_CUBE_PAGE_ROTATE);
451 customEffect.SetSwingAngle(ANGLE_CUBE_PAGE_ROTATE.x, Vector3(0,-1,0));
452 customEffect.SetOpacityThreshold(0.7f);
455 void SetupOuterPageCubeEffect()
457 ScrollViewCustomEffect customEffect;
458 mScrollViewEffect = customEffect = ScrollViewCustomEffect::New();
459 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
460 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
461 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOut);
462 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOut);
463 mScrollView.RemoveConstraintsFromChildren();
465 Vector2 pageSize = Stage::GetCurrent().GetSize();
466 customEffect.SetPageTranslation(Vector3(pageSize.x, pageSize.y, 0));
467 customEffect.SetSwingAngleOut(ANGLE_CUSTOM_CUBE_SWING.x, Vector3(0.0f, -1.0f, 0.0f));
468 customEffect.SetSwingAnchor(AnchorPoint::CENTER, AnchorPoint::CENTER_LEFT);
469 customEffect.SetOpacityThreshold(0.5f);
472 void SetupCarouselPageEffect()
474 ScrollViewCustomEffect customEffect;
475 mScrollViewEffect = customEffect = ScrollViewCustomEffect::New();
476 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
477 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
478 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOutBack);
479 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOutBack);
480 mScrollView.RemoveConstraintsFromChildren();
482 customEffect.SetPageTranslation(Vector3(0,0,0), Vector3(-30, 0, 0));
483 customEffect.SetPageSpacing(Vector2(60.0f, 60.0f));
484 customEffect.SetAngledOriginPageRotation(-ANGLE_CUBE_PAGE_ROTATE);
485 customEffect.SetOpacityThreshold(0.2f, 0.6f);
488 void SetupSpiralPageEffect()
490 ScrollViewCustomEffect customEffect;
491 mScrollViewEffect = customEffect = ScrollViewCustomEffect::New();
492 mScrollView.SetScrollSnapDuration(EFFECT_SNAP_DURATION);
493 mScrollView.SetScrollFlickDuration(EFFECT_FLICK_DURATION);
494 mScrollView.SetScrollSnapAlphaFunction(AlphaFunctions::EaseOutBack);
495 mScrollView.SetScrollFlickAlphaFunction(AlphaFunctions::EaseOutBack);
496 mScrollView.RemoveConstraintsFromChildren();
498 Vector2 pageSize = Stage::GetCurrent().GetSize();
499 customEffect.SetPageTranslation(Vector3(pageSize.x, pageSize.y, 0.0f));
500 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));
501 customEffect.SetSwingAnchor(AnchorPoint::CENTER_RIGHT);
502 customEffect.SetPageTranslation(Vector3(pageSize.x, pageSize.y, 0), Vector3(pageSize.x, pageSize.y, 0) * 0.5f);
503 customEffect.SetOpacityThreshold(0.66f);
508 * Applies effect to the pages within scroll view.
510 * @param[in] page The page Actor to apply effect to.
512 void ApplyEffectToPage(Actor page)
514 page.RemoveConstraints();
515 page.ApplyConstraint( Constraint::New<Vector3>( Actor::SIZE, ParentSource( Actor::SIZE ), EqualToConstraint() ) );
517 if( ( mEffectMode == InnerCubeEffect ) ||
518 ( mEffectMode == OuterCubeEffect ) ||
519 ( mEffectMode == SpiralEffect ) ||
520 ( mEffectMode == CarouselEffect) )
522 ApplyCustomEffectToPage(page);
526 void ApplyCustomEffectToPage(Actor page)
528 ScrollViewCustomEffect customEffect = ScrollViewCustomEffect::DownCast(mScrollViewEffect);
529 Vector2 vStageSize(Stage::GetCurrent().GetSize());
530 customEffect.ApplyToPage(page, Vector3(vStageSize.x, vStageSize.y, 1.0f));
535 * Applies effect to child which resides in page (which in turn resides in scrollview)
537 * @note Page is typically the Parent of child, although in
538 * some scenarios Page is simply a container which has a child as
541 * @param[in] child The child actor to apply effect to
542 * @param[in] page The page which this child is inside
544 void ApplyEffectToActor( Actor child, Actor page )
546 if( mEffectMode == DepthEffect )
548 ApplyDepthEffectToActor( child );
550 else if(mEffectMode == CubeEffect )
552 ApplyCubeEffectToActor( child );
557 * Applies depth effect to the child which resides in page (which in turn resides in scrollview)
559 * @param[in] child The child actor to apply depth effect to
561 void ApplyDepthEffectToActor( Actor child )
563 ScrollViewDepthEffect depthEffect = ScrollViewDepthEffect::DownCast(mScrollViewEffect);
564 depthEffect.ApplyToActor( child,
565 POSITION_EXTENT_DEPTH_EFFECT,
566 OFFSET_EXTENT_DEPTH_EFFECT,
567 POSITION_SCALE_DEPTH_EFFECT,
568 SCALE_EXTENT_DEPTH_EFFECT );
571 void ApplyCubeEffectToActor( Actor child )
576 anchor = ANCHOR_3DEFFECT_STYLE0;
580 anchor = ANCHOR_3DEFFECT_STYLE1;
583 ScrollViewCubeEffect cubeEffect = ScrollViewCubeEffect::DownCast(mScrollViewEffect);
584 cubeEffect.ApplyToActor( child,
586 ANGLE_SWING_3DEFFECT,
587 POSITION_SWING_3DEFFECT * Vector2(Stage::GetCurrent().GetSize()));
591 * Creates an Image (Helper)
593 * @param[in] filename the path of the image.
594 * @param[in] width the width of the image in texels
595 * @param[in] height the height of the image in texels.
597 ImageActor CreateImage( const std::string& filename, unsigned int width = IMAGE_THUMBNAIL_WIDTH, unsigned int height = IMAGE_THUMBNAIL_HEIGHT )
599 ImageAttributes attributes;
601 attributes.SetSize(width, height);
602 attributes.SetScalingMode(ImageAttributes::ShrinkToFit);
603 Image img = Image::New(filename, attributes);
604 ImageActor actor = ImageActor::New(img);
605 actor.SetName( filename );
606 actor.SetParentOrigin(ParentOrigin::CENTER);
607 actor.SetAnchorPoint(AnchorPoint::CENTER);
609 actor.TouchedSignal().Connect( this, &ExampleController::OnTouchImage );
614 * When scroll starts (i.e. user starts to drag scrollview),
615 * note this state (mScrolling = true)
616 * @param[in] position Current Scroll Position
618 void OnScrollStarted( const Vector3& position )
624 * When scroll starts (i.e. user stops dragging scrollview, and scrollview has snapped to destination),
625 * note this state (mScrolling = false)
626 * @param[in] position Current Scroll Position
628 void OnScrollCompleted( const Vector3& position )
634 * Upon Touching an image (Release), make it spin
635 * (provided we're not scrolling).
636 * @param[in] actor The actor touched
637 * @param[in] event The TouchEvent.
639 bool OnTouchImage( Actor actor, const TouchEvent& event )
641 if( (event.points.size() > 0) && (!mScrolling) )
643 TouchPoint point = event.points[0];
644 if(point.state == TouchPoint::Up)
646 // Spin the Image a few times.
647 Animation animation = Animation::New(SPIN_DURATION);
648 animation.RotateBy( actor, Degree(360.0f * SPIN_DURATION), Vector3::XAXIS, AlphaFunctions::EaseOut);
656 * Signal handler, called when the 'Effect' button has been touched.
658 * @param[in] button The button that was pressed.
660 bool OnEffectTouched(Button button)
662 mEffectMode = static_cast<EffectMode>((static_cast<int>(mEffectMode) + 1) % static_cast<int>(Total));
668 * Sets/Updates the title of the View
669 * @param[in] title The new title for the view.
671 void SetTitle(const std::string& title)
675 mTitleActor = TextView::New();
676 // Add title to the tool bar.
677 mToolBar.AddControl( mTitleActor, DemoHelper::DEFAULT_VIEW_STYLE.mToolBarTitlePercentage, Alignment::HorizontalCenter );
680 Font font = Font::New();
681 mTitleActor.SetText( title );
682 mTitleActor.SetSize( font.MeasureText( title ) );
683 mTitleActor.SetStyleToCurrentText(DemoHelper::GetDefaultTextStyle());
687 * Main key event handler
689 void OnKeyEvent(const KeyEvent& event)
691 if(event.state == KeyEvent::Down)
693 if( IsKey( event, Dali::DALI_KEY_ESCAPE) || IsKey( event, Dali::DALI_KEY_BACK) )
702 Application& mApplication; ///< Application instance
703 Toolkit::View mView; ///< The View instance.
704 Toolkit::ToolBar mToolBar; ///< The View's Toolbar.
705 TextView mTitleActor; ///< The Toolbar's Title.
706 Layer mContentLayer; ///< The content layer (contains game actors)
707 ScrollView mScrollView; ///< ScrollView UI Component
708 bool mScrolling; ///< ScrollView scrolling state (true = scrolling, false = stationary)
709 ScrollViewEffect mScrollViewEffect; ///< ScrollView Effect instance.
710 ActorContainer mPages; ///< Keeps track of all the pages for applying effects.
713 * Enumeration of different effects this scrollview can operate under.
717 OuterCubeEffect, ///< Outer Cube Effect
718 DepthEffect, ///< Depth Effect
719 CubeEffect, ///< Cube effect
720 InnerCubeEffect, ///< Page Cube Effect
721 CarouselEffect, ///< Page Carousel Effect
722 SpiralEffect, ///< Page Spiral Effect
727 EffectMode mEffectMode; ///< Current Effect mode
729 Image mEffectIcon[Total]; ///< Icons for the effect button
730 Toolkit::PushButton mEffectChangeButton; ///< Effect Change Button
733 int main(int argc, char **argv)
735 Application app = Application::New(&argc, &argv);
736 ExampleController test(app);