2 * Copyright (c) 2016 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 #include <dali/dali.h>
19 #include <dali-toolkit/dali-toolkit.h>
20 #include <dali-toolkit/devel-api/controls/popup/popup.h>
21 #include <dali-toolkit/public-api/visuals/image-visual-properties.h>
22 #include "shared/view.h"
26 using Toolkit::TextLabel;
31 const char* BACKGROUND_IMAGE( DEMO_IMAGE_DIR "background-gradient.jpg" );
32 const Vector4 BACKGROUND_COLOUR( 1.0f, 1.0f, 1.0f, 0.15f );
34 const char* BORDER_IMAGE( DEMO_IMAGE_DIR "border-4px.9.png" );
35 const int BORDER_WIDTH = ( 11.0f + 4.0f ); // Shadow size = 11, border size = 4.
36 const char* RESIZE_HANDLE_IMAGE( DEMO_IMAGE_DIR "resize-handle.png" );
38 const int MARGIN_SIZE = 10;
40 const char* const NEXT_BUTTON_ID = "NEXT_BUTTON";
41 const char* const PREVIOUS_BUTTON_ID = "PREVIOUS_BUTTON";
42 const char * const DALI_ICON_PLAY = DEMO_IMAGE_DIR "icon-play.png";
44 const char* const FITTING_BUTTON_ID = "FITTING_BUTTON";
45 const char* const SAMPLING_BUTTON_ID = "SAMPLING_BUTTON";
46 const char* const FITTING_BUTTON_TEXT = "Fitting";
47 const char* const SAMPLING_BUTTON_TEXT = "Sampling";
49 const char* const STYLE_LABEL_TEXT = "ImageScalingGroupLabel";
50 const char* const STYLE_BUTTON_TEXT = "ImageScalingButton";
52 const char* IMAGE_PATHS[] =
54 // Variety of sizes, shapes and formats:
55 DEMO_IMAGE_DIR "dali-logo.png",
56 DEMO_IMAGE_DIR "layer1.png",
57 DEMO_IMAGE_DIR "layer2.png",
58 DEMO_IMAGE_DIR "animation-list.png",
59 DEMO_IMAGE_DIR "music-libray-main-screen.png",
60 DEMO_IMAGE_DIR "music-libray-record-cover.png",
61 DEMO_IMAGE_DIR "contacts-background.png",
62 DEMO_IMAGE_DIR "portrait_screen_primitive_shapes.gif",
63 DEMO_IMAGE_DIR "landscape_screen_primitive_shapes.gif",
64 DEMO_IMAGE_DIR "square_primitive_shapes.bmp",
65 DEMO_IMAGE_DIR "gallery-large-14.jpg",
66 DEMO_IMAGE_DIR "book-landscape-cover.jpg",
67 DEMO_IMAGE_DIR "book-portrait-p1.jpg",
68 DEMO_IMAGE_DIR "book-landscape-cover-back.jpg",
70 // Worst case for aliasing in downscaling, 2k x 2k 1 bit per pixel dithered
71 // black and white image:
72 DEMO_IMAGE_DIR "gallery-large-14.wbmp",
74 DEMO_IMAGE_DIR "background-1.jpg",
75 DEMO_IMAGE_DIR "background-blocks.jpg",
76 DEMO_IMAGE_DIR "background-magnifier.jpg",
77 DEMO_IMAGE_DIR "gallery-large-14.jpg",
80 const int NUM_IMAGE_PATHS = sizeof(IMAGE_PATHS) / sizeof(IMAGE_PATHS[0]) - 1u;
82 /** Cycle the scaling mode options. */
83 FittingMode::Type NextScalingMode( FittingMode::Type oldMode )
85 FittingMode::Type newMode = FittingMode::SHRINK_TO_FIT;
88 case FittingMode::SHRINK_TO_FIT:
89 newMode = FittingMode::SCALE_TO_FILL;
91 case FittingMode::SCALE_TO_FILL:
92 newMode = FittingMode::FIT_WIDTH;
94 case FittingMode::FIT_WIDTH:
95 newMode = FittingMode::FIT_HEIGHT;
97 case FittingMode::FIT_HEIGHT:
98 newMode = FittingMode::SHRINK_TO_FIT;
104 /** Cycle through filter mode options. */
105 SamplingMode::Type NextFilterMode( SamplingMode::Type oldMode )
107 SamplingMode::Type newMode = SamplingMode::BOX;
111 case SamplingMode::BOX:
112 newMode = SamplingMode::NEAREST;
114 case SamplingMode::NEAREST:
115 newMode = SamplingMode::LINEAR;
117 case SamplingMode::LINEAR:
118 newMode = SamplingMode::BOX_THEN_NEAREST;
120 case SamplingMode::BOX_THEN_NEAREST:
121 newMode = SamplingMode::BOX_THEN_LINEAR;
123 case SamplingMode::BOX_THEN_LINEAR:
124 newMode = SamplingMode::NO_FILTER;
126 case SamplingMode::NO_FILTER:
127 newMode = SamplingMode::BOX;
129 case SamplingMode::DONT_CARE:
130 newMode = SamplingMode::BOX;
136 const char* StringFromScalingMode( FittingMode::Type scalingMode )
138 return scalingMode == FittingMode::SCALE_TO_FILL ? "SCALE_TO_FILL" : scalingMode == FittingMode::SHRINK_TO_FIT ? "SHRINK_TO_FIT" : scalingMode == FittingMode::FIT_WIDTH ? "FIT_WIDTH" : scalingMode == FittingMode::FIT_HEIGHT ? "FIT_HEIGHT" : "UnknownScalingMode";
141 const char* StringFromFilterMode( SamplingMode::Type filterMode )
143 return filterMode == SamplingMode::BOX ? "BOX" : filterMode == SamplingMode::BOX_THEN_NEAREST ? "BOX_THEN_NEAREST" : filterMode == SamplingMode::BOX_THEN_LINEAR ? "BOX_THEN_LINEAR" : filterMode == SamplingMode::NEAREST ? "NEAREST" : filterMode == SamplingMode::LINEAR ? "LINEAR" : filterMode == SamplingMode::NO_FILTER ? "NO_FILTER" : filterMode == SamplingMode::DONT_CARE ? "DONT_CARE" : "UnknownFilterMode";
148 // This example shows the load-time image scaling and filtering features.
150 class ImageScalingAndFilteringController : public ConnectionTracker
154 ImageScalingAndFilteringController( Application& application )
155 : mApplication( application ),
156 mLastPinchScale( 1.0f ),
157 mImageStageScale( 0.5f, 0.5f ),
159 mFittingMode( FittingMode::FIT_WIDTH ),
160 mSamplingMode( SamplingMode::BOX_THEN_LINEAR),
161 mImageLoading( false ),
162 mQueuedImageLoad( false )
164 // Connect to the Application's Init signal
165 mApplication.InitSignal().Connect( this, &ImageScalingAndFilteringController::Create );
168 ~ImageScalingAndFilteringController()
170 // Nothing to do here;
173 // The Init signal is received once (only) during the Application lifetime
174 void Create( Application& application )
176 // Get a handle to the stage
177 Stage stage = Stage::GetCurrent();
179 // Hide the indicator bar
180 application.GetWindow().ShowIndicator( Dali::Window::INVISIBLE );
183 Dali::Property::Map backgroundImage;
184 backgroundImage.Insert( Toolkit::Visual::Property::TYPE, Toolkit::Visual::IMAGE );
185 backgroundImage.Insert( Toolkit::ImageVisual::Property::URL, BACKGROUND_IMAGE );
186 backgroundImage.Insert( Toolkit::ImageVisual::Property::DESIRED_WIDTH, stage.GetSize().width );
187 backgroundImage.Insert( Toolkit::ImageVisual::Property::DESIRED_HEIGHT, stage.GetSize().height );
188 backgroundImage.Insert( Toolkit::ImageVisual::Property::FITTING_MODE, FittingMode::SCALE_TO_FILL );
189 backgroundImage.Insert( Toolkit::ImageVisual::Property::SAMPLING_MODE, SamplingMode::BOX_THEN_NEAREST );
191 Toolkit::ImageView background = Toolkit::ImageView::New();
192 background.SetProperty( Toolkit::ImageView::Property::IMAGE, backgroundImage );
193 background.SetAnchorPoint( AnchorPoint::TOP_LEFT );
194 background.SetSize( stage.GetSize() );
195 stage.Add( background );
197 BufferImage heightBackground = BufferImage::WHITE();
198 PixelBuffer* const heightPixel = heightBackground.GetBuffer();
199 heightPixel[0] = 0x8f;
200 heightPixel[1] = 0x8f;
201 heightPixel[2] = 0x8f;
203 BufferImage widthBackground = BufferImage::WHITE();
204 PixelBuffer* const widthPixel = widthBackground.GetBuffer();
205 widthPixel[0] = 0x4f;
206 widthPixel[1] = 0x4f;
207 widthPixel[2] = 0x4f;
209 mHeightBox = Toolkit::ImageView::New( heightBackground );
210 mHeightBox.SetOpacity( 0.2f );
211 background.Add( mHeightBox );
213 mWidthBox = Toolkit::ImageView::New( widthBackground );
214 mWidthBox.SetOpacity( 0.2f );
215 background.Add( mWidthBox );
217 mDesiredBox = Toolkit::ImageView::New( BORDER_IMAGE );
218 background.Add( mDesiredBox );
220 mDesiredBox.SetSize( stage.GetSize() * mImageStageScale );
221 mDesiredBox.SetParentOrigin( ParentOrigin::CENTER );
222 mDesiredBox.SetAnchorPoint( AnchorPoint::CENTER );
224 mHeightBox.SetSize( stage.GetSize().width, (stage.GetSize() * mImageStageScale).height );
225 mHeightBox.SetParentOrigin( ParentOrigin::CENTER );
226 mHeightBox.SetAnchorPoint( AnchorPoint::CENTER );
228 mWidthBox.SetSize( (stage.GetSize() * mImageStageScale).width, stage.GetSize().height );
229 mWidthBox.SetParentOrigin( ParentOrigin::CENTER );
230 mWidthBox.SetAnchorPoint( AnchorPoint::CENTER );
232 // Initialize the actor
233 mImageView = Toolkit::ImageView::New( IMAGE_PATHS[ 0 ] );
235 // Reposition the actor
236 mImageView.SetParentOrigin( ParentOrigin::CENTER );
237 mImageView.SetAnchorPoint( AnchorPoint::CENTER );
239 // Display the actor on the stage
240 mDesiredBox.Add( mImageView );
242 mImageView.SetSize( stage.GetSize() * mImageStageScale );
244 // Setup the pinch detector for scaling the desired image load dimensions:
245 mPinchDetector = PinchGestureDetector::New();
246 mPinchDetector.Attach( mImageView );
247 mPinchDetector.DetectedSignal().Connect( this, &ImageScalingAndFilteringController::OnPinch );
249 mGrabCorner = Toolkit::ImageView::New( RESIZE_HANDLE_IMAGE );
250 mGrabCorner.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::ALL_DIMENSIONS );
251 mGrabCorner.SetName( "GrabCorner" );
252 mGrabCorner.SetAnchorPoint( AnchorPoint::BOTTOM_RIGHT );
253 mGrabCorner.SetParentOrigin( ParentOrigin::BOTTOM_RIGHT );
254 mGrabCorner.SetPosition( -BORDER_WIDTH, -BORDER_WIDTH );
255 mGrabCorner.SetOpacity( 0.6f );
257 Layer grabCornerLayer = Layer::New();
258 grabCornerLayer.SetAnchorPoint( AnchorPoint::BOTTOM_RIGHT );
259 grabCornerLayer.SetParentOrigin( ParentOrigin::BOTTOM_RIGHT );
260 grabCornerLayer.Add( mGrabCorner );
261 mDesiredBox.Add( grabCornerLayer );
263 mPanGestureDetector = PanGestureDetector::New();
264 mPanGestureDetector.Attach( mGrabCorner );
265 mPanGestureDetector.DetectedSignal().Connect( this, &ImageScalingAndFilteringController::OnPan );
267 // Tie-in input event handlers:
268 stage.KeyEventSignal().Connect( this, &ImageScalingAndFilteringController::OnKeyEvent );
276 * Create the GUI controls which float above the scene
278 void CreateControls()
280 Stage stage = Stage::GetCurrent();
282 Dali::Layer controlsLayer = Dali::Layer::New();
283 controlsLayer.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
284 controlsLayer.SetSizeModeFactor( Vector3( 1.0f, 1.0f, 1.0f ) );
285 controlsLayer.SetAnchorPoint( AnchorPoint::TOP_LEFT);
286 controlsLayer.SetParentOrigin( ParentOrigin::TOP_LEFT);
287 stage.Add( controlsLayer );
289 // Back and next image buttons in corners of stage:
290 unsigned int playWidth = std::min( stage.GetSize().x * (1 / 5.0f), 58.0f );
291 Toolkit::ImageView imagePrevious = Toolkit::ImageView::New( DALI_ICON_PLAY, ImageDimensions( playWidth, playWidth ) );
293 // Last image button:
294 imagePrevious.SetAnchorPoint( AnchorPoint::TOP_LEFT );
295 imagePrevious.RotateBy( Radian(3.14159265358979323846f), Vector3( 0, 1.0f, 0 ) );
296 imagePrevious.SetY( playWidth * 0.5f );
297 imagePrevious.SetX( playWidth + playWidth * 0.5f );
298 imagePrevious.SetOpacity( 0.6f );
299 controlsLayer.Add( imagePrevious );
300 imagePrevious.SetName( PREVIOUS_BUTTON_ID );
301 imagePrevious.TouchSignal().Connect( this, &ImageScalingAndFilteringController::OnControlTouched );
303 // Next image button:
304 Toolkit::ImageView imageNext = Toolkit::ImageView::New( DALI_ICON_PLAY, ImageDimensions( playWidth, playWidth ) );
305 imageNext.SetAnchorPoint( AnchorPoint::TOP_RIGHT );
306 imageNext.SetY( playWidth * 0.5f );
307 imageNext.SetX( stage.GetSize().x - playWidth * 0.5f );
308 imageNext.SetOpacity( 0.6f );
309 controlsLayer.Add( imageNext );
310 imageNext.SetName( NEXT_BUTTON_ID );
311 imageNext.TouchSignal().Connect( this, &ImageScalingAndFilteringController::OnControlTouched );
313 // Buttons to popup selectors for fitting and sampling modes:
315 // Wrapper table to hold two buttons side by side:
316 Toolkit::TableView modesGroupBackground = Toolkit::TableView::New( 1, 2 );
317 modesGroupBackground.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
318 modesGroupBackground.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
319 modesGroupBackground.SetBackgroundColor( BACKGROUND_COLOUR );
320 modesGroupBackground.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE ) );
321 modesGroupBackground.SetFitHeight( 0 );
323 modesGroupBackground.SetAnchorPoint( AnchorPoint::BOTTOM_LEFT );
324 modesGroupBackground.SetParentOrigin( ParentOrigin::BOTTOM_LEFT );
325 modesGroupBackground.SetPosition( 0.0f, 0.0f );
327 controlsLayer.Add( modesGroupBackground );
330 // Vertical table to hold label and button:
331 Toolkit::TableView fittingModeGroup = Toolkit::TableView::New( 2, 1 );
332 fittingModeGroup.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
333 fittingModeGroup.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
334 fittingModeGroup.SetBackgroundColor( BACKGROUND_COLOUR );
335 fittingModeGroup.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE * 0.5f ) );
336 fittingModeGroup.SetFitHeight( 0 );
337 fittingModeGroup.SetFitHeight( 1 );
339 TextLabel label = TextLabel::New( "Image fitting mode:" );
340 label.SetStyleName( STYLE_LABEL_TEXT );
341 fittingModeGroup.Add( label );
343 Toolkit::PushButton button = CreateButton( FITTING_BUTTON_ID, StringFromScalingMode( mFittingMode ) );
344 fittingModeGroup.Add( button );
345 mFittingModeButton = button;
347 modesGroupBackground.Add( fittingModeGroup );
351 // Vertical table to hold label and button:
352 Toolkit::TableView samplingModeGroup = Toolkit::TableView::New( 2, 1 );
353 samplingModeGroup.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
354 samplingModeGroup.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
355 samplingModeGroup.SetBackgroundColor( BACKGROUND_COLOUR );
356 samplingModeGroup.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE * 0.5f ) );
357 samplingModeGroup.SetFitHeight( 0 );
358 samplingModeGroup.SetFitHeight( 1 );
360 TextLabel label = TextLabel::New( "Image sampling mode:" );
361 label.SetStyleName( STYLE_LABEL_TEXT );
362 samplingModeGroup.Add( label );
364 Toolkit::PushButton button = CreateButton( SAMPLING_BUTTON_ID, StringFromFilterMode( mSamplingMode ) );
365 samplingModeGroup.Add( button );
366 mSamplingModeButton = button;
368 modesGroupBackground.Add( samplingModeGroup );
372 Toolkit::PushButton CreateButton( const char * id, const char * label )
374 Toolkit::PushButton button = Toolkit::PushButton::New();
375 button.SetStyleName( STYLE_BUTTON_TEXT );
376 button.SetName( id );
377 button.SetProperty( Toolkit::Button::Property::LABEL, label );
378 button.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
379 button.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
380 button.ClickedSignal().Connect( this, &ImageScalingAndFilteringController::OnButtonClicked );
384 Toolkit::Popup CreatePopup()
386 Stage stage = Stage::GetCurrent();
387 const float POPUP_WIDTH_DP = stage.GetSize().width * 0.75f;
389 Toolkit::Popup popup = Toolkit::Popup::New();
390 popup.SetName( "POPUP" );
391 popup.SetParentOrigin( ParentOrigin::CENTER );
392 popup.SetAnchorPoint( AnchorPoint::CENTER );
393 popup.SetSize( POPUP_WIDTH_DP, 0.0f );
395 popup.OutsideTouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnPopupOutsideTouched );
400 Toolkit::PushButton CreatePopupButton( Actor parent, const char* id )
402 Toolkit::PushButton button = Toolkit::PushButton::New();
403 button.SetName( id );
404 button.SetProperty( Toolkit::Button::Property::LABEL, id );
406 button.SetAnchorPoint( AnchorPoint::TOP_LEFT );
407 button.SetParentOrigin( ParentOrigin::BOTTOM_LEFT );
408 button.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
409 button.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
411 button.ClickedSignal().Connect( this, &ImageScalingAndFilteringController::OnButtonClicked );
413 parent.Add( button );
417 bool OnButtonClicked( Toolkit::Button button )
419 if( button.GetName() == FITTING_BUTTON_ID )
421 mPopup = CreatePopup();
423 // Four-row table to hold buttons:
424 Toolkit::TableView fittingModes = Toolkit::TableView::New( 4, 1 );
425 fittingModes.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
426 fittingModes.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
427 fittingModes.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE * 0.5 ) );
428 fittingModes.SetFitHeight( 0 );
429 fittingModes.SetFitHeight( 1 );
430 fittingModes.SetFitHeight( 2 );
431 fittingModes.SetFitHeight( 3 );
433 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::SCALE_TO_FILL ) );
434 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::SHRINK_TO_FIT ) );
435 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::FIT_WIDTH ) );
436 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::FIT_HEIGHT ) );
438 mPopup.SetContent( fittingModes );
439 Stage::GetCurrent().Add( mPopup );
440 mPopup.SetDisplayState( Toolkit::Popup::SHOWN );
442 else if( button.GetName() == SAMPLING_BUTTON_ID )
444 mPopup = CreatePopup();
446 // Table to hold buttons for each sampling mode:
447 Toolkit::TableView samplingModes = Toolkit::TableView::New( 6, 1 );
448 samplingModes.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
449 samplingModes.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
450 samplingModes.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE * 0.5 ) );
451 samplingModes.SetFitHeight( 0 );
452 samplingModes.SetFitHeight( 1 );
453 samplingModes.SetFitHeight( 2 );
454 samplingModes.SetFitHeight( 3 );
455 samplingModes.SetFitHeight( 4 );
456 samplingModes.SetFitHeight( 5 );
458 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::NEAREST ) );
459 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::LINEAR ) );
460 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX ) );
461 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX_THEN_NEAREST ) );
462 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX_THEN_LINEAR ) );
463 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::NO_FILTER ) );
465 mPopup.SetContent( samplingModes );
466 Stage::GetCurrent().Add( mPopup );
467 mPopup.SetDisplayState( Toolkit::Popup::SHOWN );
469 else if( CheckFittingModeButton( button, FittingMode::SCALE_TO_FILL) ||
470 CheckFittingModeButton( button, FittingMode::SHRINK_TO_FIT) ||
471 CheckFittingModeButton( button, FittingMode::FIT_WIDTH) ||
472 CheckFittingModeButton( button, FittingMode::FIT_HEIGHT) )
475 else if( CheckSamplingModeButton( button, SamplingMode::NEAREST ) ||
476 CheckSamplingModeButton( button, SamplingMode::LINEAR ) ||
477 CheckSamplingModeButton( button, SamplingMode::BOX ) ||
478 CheckSamplingModeButton( button, SamplingMode::LINEAR ) ||
479 CheckSamplingModeButton( button, SamplingMode::BOX_THEN_NEAREST ) ||
480 CheckSamplingModeButton( button, SamplingMode::BOX_THEN_LINEAR ) ||
481 CheckSamplingModeButton( button, SamplingMode::NO_FILTER ) )
487 bool CheckFittingModeButton( Actor &button, FittingMode::Type mode )
489 const char * const modeName = StringFromScalingMode( mode );
490 if( button.GetName() == modeName )
493 mFittingModeButton.SetProperty( Toolkit::Button::Property::LABEL, modeName );
495 mPopup.SetDisplayState( Toolkit::Popup::HIDDEN );
502 bool CheckSamplingModeButton( Actor &button, SamplingMode::Type mode )
504 const char * const modeName = StringFromFilterMode( mode );
505 if( button.GetName() == modeName )
507 mSamplingMode = mode;
508 mSamplingModeButton.SetProperty( Toolkit::Button::Property::LABEL, modeName );
510 mPopup.SetDisplayState( Toolkit::Popup::HIDDEN );
517 void OnPopupOutsideTouched()
521 mPopup.SetDisplayState( Toolkit::Popup::HIDDEN );
526 bool OnControlTouched( Actor actor, const TouchData& event )
528 if(event.GetPointCount() > 0)
530 switch( event.GetState( 0 ) )
534 const std::string & name = actor.GetName();
535 if( name == NEXT_BUTTON_ID )
537 mCurrentPath = mCurrentPath + 1;
538 mCurrentPath = mCurrentPath < NUM_IMAGE_PATHS ? mCurrentPath : 0;
541 else if( name == PREVIOUS_BUTTON_ID )
543 mCurrentPath = mCurrentPath - 1;
544 mCurrentPath = mCurrentPath >= 0 ? mCurrentPath : NUM_IMAGE_PATHS - 1;
559 void OnPinch( Actor actor, const PinchGesture& pinch )
561 if( pinch.state == Gesture::Started )
563 mLastPinchScale = pinch.scale;
565 const float scale = pinch.scale;
567 if( ! Equals( scale, mLastPinchScale ) )
569 if ( scale < mLastPinchScale )
571 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
572 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
576 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
577 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
581 mLastPinchScale = scale;
584 void OnPan( Actor actor, const PanGesture& gesture )
586 Stage stage = Stage::GetCurrent();
587 // 1.0f and 0.75f are the maximum size caps of the resized image, as a factor of stage-size.
588 mImageStageScale.x = std::max( 0.05f, std::min( 0.95f, mImageStageScale.x + ( gesture.displacement.x * 2.0f / stage.GetSize().width ) ) );
589 mImageStageScale.y = std::max( 0.05f, std::min( 0.70f, mImageStageScale.y + ( gesture.displacement.y * 2.0f / stage.GetSize().height ) ) );
594 void OnKeyEvent(const KeyEvent& event)
596 if( event.state == KeyEvent::Down )
598 if( IsKey( event, Dali::DALI_KEY_ESCAPE ) || IsKey( event, Dali::DALI_KEY_BACK ) )
600 if( mPopup && mPopup.IsVisible() )
602 mPopup.SetDisplayState( Toolkit::Popup::HIDDEN );
610 else if ( event.keyPressedName == "Right" )
612 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
614 else if ( event.keyPressedName == "Left" )
616 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
618 else if ( event.keyPressedName == "Up" )
620 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
622 else if ( event.keyPressedName == "Down" )
624 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
626 else if ( event.keyPressedName == "o" )
628 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
629 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
631 else if ( event.keyPressedName == "p" )
633 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
634 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
636 else if ( event.keyPressedName == "n" )
638 mCurrentPath = mCurrentPath + 1;
639 mCurrentPath = mCurrentPath < NUM_IMAGE_PATHS ? mCurrentPath : 0;
641 else if ( event.keyPressedName == "b" )
643 mCurrentPath = mCurrentPath - 1;
644 mCurrentPath = mCurrentPath >= 0 ? mCurrentPath : NUM_IMAGE_PATHS - 1;
646 // Cycle filter and scaling modes:
647 else if ( event.keyPressedName == "f" )
649 mSamplingMode = NextFilterMode( mSamplingMode );
650 mSamplingModeButton.SetProperty( Toolkit::Button::Property::LABEL, StringFromFilterMode( mSamplingMode ) );
652 // Cycle filter and scaling modes:
653 else if ( event.keyPressedName == "s" )
655 mFittingMode = NextScalingMode( mFittingMode );
656 mFittingModeButton.SetProperty( Toolkit::Button::Property::LABEL, StringFromScalingMode( mFittingMode ) );
671 mImageLoading = true;
673 const char * const path = IMAGE_PATHS[ mCurrentPath ];
674 Stage stage = Stage::GetCurrent();
675 Size imageSize = stage.GetSize() * mImageStageScale;
676 mImageView.SetSize( imageSize );
679 map[Toolkit::ImageVisual::Property::URL] = path;
680 map[Toolkit::ImageVisual::Property::DESIRED_WIDTH] = imageSize.x;
681 map[Toolkit::ImageVisual::Property::DESIRED_HEIGHT] = imageSize.y;
682 map[Toolkit::ImageVisual::Property::FITTING_MODE] = mFittingMode;
683 map[Toolkit::ImageVisual::Property::SAMPLING_MODE] = mSamplingMode;
685 mImageView.SetProperty( Toolkit::ImageView::Property::IMAGE, map );
692 Stage stage = Stage::GetCurrent();
693 Size imageSize = stage.GetSize() * mImageStageScale;
697 // Border size needs to be modified to take into account the width of the frame.
698 Vector2 borderScale( ( imageSize + Vector2( BORDER_WIDTH * 2.0f, BORDER_WIDTH * 2.0f ) ) / stage.GetSize() );
699 mDesiredBox.SetSize( stage.GetSize() * borderScale );
701 mHeightBox.SetSize( stage.GetSize().width, (stage.GetSize() * mImageStageScale).height );
702 mWidthBox.SetSize( (stage.GetSize() * mImageStageScale).width, stage.GetSize().height );
706 Application& mApplication;
707 Toolkit::ImageView mDesiredBox; //< Background rectangle to show requested image size.
708 Toolkit::ImageView mHeightBox; //< Background horizontal stripe to show requested image height.
709 Toolkit::ImageView mWidthBox; //< Background vertical stripe to show requested image width.
710 Toolkit::PushButton mFittingModeButton;
711 Toolkit::PushButton mSamplingModeButton;
712 Toolkit::Popup mPopup;
713 PinchGestureDetector mPinchDetector;
714 float mLastPinchScale;
715 Toolkit::ImageView mGrabCorner;
716 PanGestureDetector mPanGestureDetector;
717 Toolkit::ImageView mImageView;
718 Vector2 mImageStageScale;
720 FittingMode::Type mFittingMode;
721 SamplingMode::Type mSamplingMode;
723 bool mQueuedImageLoad;
727 void RunTest( Application& application )
729 ImageScalingAndFilteringController test( application );
731 application.MainLoop();
734 // Entry point for Linux & Tizen applications
735 int DALI_EXPORT_API main( int argc, char **argv )
737 Application application = Application::New( &argc, &argv, DEMO_THEME_PATH );
739 RunTest( application );