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 #include <dali/dali.h>
19 #include <dali-toolkit/dali-toolkit.h>
20 #include <dali-toolkit/devel-api/controls/popup/popup.h>
21 #include "shared/view.h"
25 using Toolkit::TextLabel;
30 const char* BACKGROUND_IMAGE( DALI_IMAGE_DIR "background-gradient.jpg" );
31 const Vector4 BACKGROUND_COLOUR( 1.0f, 1.0f, 1.0f, 0.15f );
33 const int MARGIN_SIZE = 10;
35 const char* const NEXT_BUTTON_ID = "NEXT_BUTTON";
36 const char* const PREVIOUS_BUTTON_ID = "PREVIOUS_BUTTON";
37 const char * const DALI_ICON_PLAY = DALI_IMAGE_DIR "icon-play.png";
39 const char* const PUSHBUTTON_PRESS_IMAGE = DALI_IMAGE_DIR "button-down.9.png";
40 const char* const PUSHBUTTON_BUTTON_IMAGE = DALI_IMAGE_DIR "button-up.9.png";
41 const char* const PUSHBUTTON_DISABLED_IMAGE = DALI_IMAGE_DIR "button-disabled.9.png";
43 const char* const FITTING_BUTTON_ID = "FITTING_BUTTON";
44 const char* const SAMPLING_BUTTON_ID = "SAMPLING_BUTTON";
45 const char* const FITTING_BUTTON_TEXT = "Fitting";
46 const char* const SAMPLING_BUTTON_TEXT = "Sampling";
48 const char* const STYLE_LABEL_TEXT = "grouplabel";
49 const char* const STYLE_BUTTON_TEXT = "buttonlabel";
53 const char* IMAGE_PATHS[] =
55 // Worst case for aliasing in downscaling, 2k x 2k 1 bit per pixel dithered
56 // black and white image:
57 DALI_IMAGE_DIR "gallery-large-14.wbmp",
58 // Variety of sizes, shapes and formats:
59 DALI_IMAGE_DIR "animation-list.png",
60 DALI_IMAGE_DIR "layer1.png",
61 DALI_IMAGE_DIR "layer2.png",
62 DALI_IMAGE_DIR "music-libray-main-screen.png",
63 DALI_IMAGE_DIR "music-libray-record-cover.png",
64 DALI_IMAGE_DIR "contacts-background.png",
65 DALI_IMAGE_DIR "portrait_screen_primitive_shapes.gif",
66 DALI_IMAGE_DIR "landscape_screen_primitive_shapes.gif",
67 DALI_IMAGE_DIR "square_primitive_shapes.bmp",
68 DALI_IMAGE_DIR "dali-logo.png",
69 DALI_IMAGE_DIR "com.samsung.dali-demo.ico",
70 DALI_IMAGE_DIR "gallery-large-14.jpg",
71 DALI_IMAGE_DIR "book-landscape-cover.jpg",
72 DALI_IMAGE_DIR "book-portrait-p1.jpg",
73 DALI_IMAGE_DIR "book-landscape-cover-back.jpg",
74 DALI_IMAGE_DIR "background-1.jpg",
75 DALI_IMAGE_DIR "background-blocks.jpg",
76 DALI_IMAGE_DIR "background-magnifier.jpg",
77 DALI_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 mImageStageScale( 0.5f, 0.5f ),
158 mFittingMode( FittingMode::SCALE_TO_FILL ),
159 mSamplingMode( SamplingMode::BOX_THEN_LINEAR)
161 // Connect to the Application's Init signal
162 mApplication.InitSignal().Connect( this, &ImageScalingAndFilteringController::Create );
165 ~ImageScalingAndFilteringController()
167 // Nothing to do here;
170 // The Init signal is received once (only) during the Application lifetime
171 void Create( Application& application )
173 // Get a handle to the stage
174 Stage stage = Stage::GetCurrent();
177 ResourceImage backgroundImage = ResourceImage::New( BACKGROUND_IMAGE, ImageDimensions( stage.GetSize().width, stage.GetSize().height ), FittingMode::SCALE_TO_FILL, SamplingMode::BOX_THEN_LINEAR );
178 ImageActor background = ImageActor::New( backgroundImage );
179 background.SetZ( -2.0f );
180 background.SetAnchorPoint( AnchorPoint::TOP_LEFT );
181 background.SetSize( stage.GetSize() );
182 stage.Add( background );
184 // Make grey pixels for the desired box, the desired height the desired width:
185 BufferImage desiredBackground = BufferImage::WHITE();
187 BufferImage heightBackground = BufferImage::WHITE();
188 PixelBuffer* const heightPixel = heightBackground.GetBuffer();
189 heightPixel[0] = 0x8f;
190 heightPixel[1] = 0x8f;
191 heightPixel[2] = 0x8f;
193 BufferImage widthBackground = BufferImage::WHITE();
194 PixelBuffer* const widthPixel = widthBackground.GetBuffer();
195 widthPixel[0] = 0x4f;
196 widthPixel[1] = 0x4f;
197 widthPixel[2] = 0x4f;
199 mHeightBox = ImageActor::New( heightBackground );
200 mHeightBox.SetOpacity( 0.2f );
201 stage.Add( mHeightBox );
203 mWidthBox = ImageActor::New( widthBackground );
204 mWidthBox.SetOpacity( 0.2f );
205 stage.Add( mWidthBox );
207 mDesiredBox = ImageActor::New( desiredBackground );
208 stage.Add( mDesiredBox );
210 mDesiredBox.SetSize( stage.GetSize() * mImageStageScale );
211 mDesiredBox.SetParentOrigin( ParentOrigin::CENTER );
212 mDesiredBox.SetAnchorPoint( AnchorPoint::CENTER );
213 mDesiredBox.SetPosition( 0, 0, -1 );
215 mHeightBox.SetSize( stage.GetSize().width, (stage.GetSize() * mImageStageScale).height );
216 mHeightBox.SetParentOrigin( ParentOrigin::CENTER );
217 mHeightBox.SetAnchorPoint( AnchorPoint::CENTER );
218 mHeightBox.SetPosition( 0, 0, -1 );
220 mWidthBox.SetSize( (stage.GetSize() * mImageStageScale).width, stage.GetSize().height );
221 mWidthBox.SetParentOrigin( ParentOrigin::CENTER );
222 mWidthBox.SetAnchorPoint( AnchorPoint::CENTER );
223 mWidthBox.SetPosition( 0, 0, -1 );
225 // Make a grab-handle for resizing the image:
226 mGrabCorner = Toolkit::PushButton::New();
227 mGrabCorner.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::WIDTH );
228 mGrabCorner.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
229 mGrabCorner.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
230 mGrabCorner.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
231 mGrabCorner.SetDisabledImage( Dali::ResourceImage::New( PUSHBUTTON_DISABLED_IMAGE ) );
232 mGrabCorner.SetName( "GrabCorner" );
233 mGrabCorner.SetAnchorPoint( AnchorPoint::BOTTOM_RIGHT );
234 mGrabCorner.SetParentOrigin( ParentOrigin::BOTTOM_RIGHT );
235 mGrabCorner.SetSize( Vector2( stage.GetSize().width*0.08f, stage.GetSize().width*0.08f ) );
236 mGrabCorner.SetZ( 1.0f );
237 mGrabCorner.SetOpacity( 0.6f );
238 mDesiredBox.Add( mGrabCorner );
239 mPanGestureDetector = PanGestureDetector::New();
240 mPanGestureDetector.Attach( mGrabCorner );
241 mPanGestureDetector.DetectedSignal().Connect( this, &ImageScalingAndFilteringController::OnPan );
243 // Initialize the actor
244 mImageActor = ImageActor::New();
246 // Reposition the actor
247 mImageActor.SetParentOrigin( ParentOrigin::CENTER );
248 mImageActor.SetAnchorPoint( AnchorPoint::CENTER );
250 // Display the actor on the stage
251 stage.Add( mImageActor );
253 mImageActor.SetSize( stage.GetSize() * mImageStageScale );
255 // Setup the pinch detector for scaling the desired image load dimensions:
256 mPinchDetector = PinchGestureDetector::New();
257 mPinchDetector.Attach( mImageActor );
258 mPinchDetector.DetectedSignal().Connect( this, &ImageScalingAndFilteringController::OnPinch );
260 // Tie-in input event handlers:
261 stage.KeyEventSignal().Connect( this, &ImageScalingAndFilteringController::OnKeyEvent );
269 * Create the GUI controls which float above the scene
271 void CreateControls()
273 Stage stage = Stage::GetCurrent();
275 Dali::Layer controlsLayer = Dali::Layer::New();
276 controlsLayer.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
277 controlsLayer.SetSizeModeFactor( Vector3( 1.0f, 1.0f, 1.0f ) );
278 controlsLayer.SetAnchorPoint( AnchorPoint::TOP_LEFT);
279 controlsLayer.SetParentOrigin( ParentOrigin::TOP_LEFT);
280 stage.Add( controlsLayer );
282 // Back and next image buttons in corners of stage:
283 unsigned int playWidth = std::min( stage.GetSize().x * (1 / 5.0f), 58.0f );
284 Image playImage = ResourceImage::New( DALI_ICON_PLAY, ImageDimensions( playWidth, playWidth ), FittingMode::SHRINK_TO_FIT, SamplingMode::BOX_THEN_LINEAR );
285 Actor imagePrevious = ImageActor::New( playImage );
287 // Last image button:
288 imagePrevious.SetAnchorPoint( AnchorPoint::TOP_LEFT );
289 imagePrevious.RotateBy( Radian(3.14159265358979323846f), Vector3( 0, 1.0f, 0 ) );
290 imagePrevious.SetY( playWidth * 0.5f );
291 imagePrevious.SetX( playWidth + playWidth * 0.5f );
292 imagePrevious.SetOpacity( 0.6f );
293 controlsLayer.Add( imagePrevious );
294 imagePrevious.SetName( PREVIOUS_BUTTON_ID );
295 imagePrevious.TouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnControlTouched );
297 // Next image button:
298 Actor imageNext = ImageActor::New( playImage );
299 imageNext.SetAnchorPoint( AnchorPoint::TOP_RIGHT );
300 imageNext.SetY( playWidth * 0.5f );
301 imageNext.SetX( stage.GetSize().x - playWidth * 0.5f );
302 imageNext.SetOpacity( 0.6f );
303 controlsLayer.Add( imageNext );
304 imageNext.SetName( NEXT_BUTTON_ID );
305 imageNext.TouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnControlTouched );
307 // Buttons to popup selectors for fitting and sampling modes:
309 // Wrapper table to hold two buttons side by side:
310 Toolkit::TableView modesGroupBackground = Toolkit::TableView::New( 1, 2 );
311 modesGroupBackground.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
312 modesGroupBackground.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
313 modesGroupBackground.SetBackgroundColor( BACKGROUND_COLOUR );
314 modesGroupBackground.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE ) );
315 modesGroupBackground.SetFitHeight( 0 );
317 modesGroupBackground.SetAnchorPoint( AnchorPoint::BOTTOM_LEFT );
318 modesGroupBackground.SetParentOrigin( ParentOrigin::BOTTOM_LEFT );
319 modesGroupBackground.SetPosition( 0.0f, 0.0f );
321 controlsLayer.Add( modesGroupBackground );
324 // Vertical table to hold label and button:
325 Toolkit::TableView fittingModeGroup = Toolkit::TableView::New( 2, 1 );
326 fittingModeGroup.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
327 fittingModeGroup.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
328 fittingModeGroup.SetBackgroundColor( BACKGROUND_COLOUR );
329 fittingModeGroup.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE * 0.5f ) );
330 fittingModeGroup.SetFitHeight( 0 );
331 fittingModeGroup.SetFitHeight( 1 );
333 TextLabel label = TextLabel::New( "Image fitting mode:" );
334 label.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_LABEL_TEXT );
335 fittingModeGroup.Add( label );
337 Toolkit::PushButton button = CreateButton( FITTING_BUTTON_ID, StringFromScalingMode( mFittingMode ) );
338 button.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
339 fittingModeGroup.Add( button );
340 mFittingModeButton = button;
342 modesGroupBackground.Add( fittingModeGroup );
346 // Vertical table to hold label and button:
347 Toolkit::TableView samplingModeGroup = Toolkit::TableView::New( 2, 1 );
348 samplingModeGroup.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
349 samplingModeGroup.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
350 samplingModeGroup.SetBackgroundColor( BACKGROUND_COLOUR );
351 samplingModeGroup.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE * 0.5f ) );
352 samplingModeGroup.SetFitHeight( 0 );
353 samplingModeGroup.SetFitHeight( 1 );
355 TextLabel label = TextLabel::New( "Image sampling mode:" );
356 label.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_LABEL_TEXT );
357 samplingModeGroup.Add( label );
359 Toolkit::PushButton button = CreateButton( SAMPLING_BUTTON_ID, StringFromFilterMode( mSamplingMode ) );
360 button.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
361 samplingModeGroup.Add( button );
362 mSamplingModeButton = button;
364 modesGroupBackground.Add( samplingModeGroup );
368 Toolkit::PushButton CreateButton( const char * id, const char * label )
370 Toolkit::PushButton button = Toolkit::PushButton::New();
371 button.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
372 button.SetName( id );
373 button.SetLabel( label );
374 button.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
375 button.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
376 button.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
377 button.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
378 button.SetDisabledImage( Dali::ResourceImage::New( PUSHBUTTON_DISABLED_IMAGE ) );
379 button.ClickedSignal().Connect( this, &ImageScalingAndFilteringController::OnButtonClicked );
383 Toolkit::Popup CreatePopup()
385 Stage stage = Stage::GetCurrent();
386 const float POPUP_WIDTH_DP = stage.GetSize().width * 0.75f;
388 Toolkit::Popup popup = Toolkit::Popup::New();
389 popup.SetName( "POPUP" );
390 popup.SetParentOrigin( ParentOrigin::CENTER );
391 popup.SetAnchorPoint( AnchorPoint::CENTER );
392 popup.SetSize( POPUP_WIDTH_DP, 0.0f );
395 popup.OutsideTouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnPopupOutsideTouched );
400 //void CreatePopupButton( Toolkit::Popup popup, const char* id )
401 Toolkit::PushButton CreatePopupButton( Actor parent, const char* id )
403 Toolkit::PushButton button = Toolkit::PushButton::New();
404 button.SetName( id );
405 button.SetLabel( id );
406 button.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
407 button.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
408 Toolkit::TextLabel textLabel = Toolkit::TextLabel::DownCast( button.GetLabel() );
409 textLabel.SetProperty( TextLabel::Property::POINT_SIZE, 12.0f );
411 button.SetAnchorPoint( AnchorPoint::TOP_LEFT );
412 button.SetParentOrigin( ParentOrigin::BOTTOM_LEFT );
413 button.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
414 button.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
416 button.ClickedSignal().Connect( this, &ImageScalingAndFilteringController::OnButtonClicked );
418 parent.Add( button );
422 bool OnButtonClicked( Toolkit::Button button )
424 if( button.GetName() == FITTING_BUTTON_ID )
426 mPopup = CreatePopup();
428 // Four-row table to hold buttons:
429 Toolkit::TableView fittingModes = Toolkit::TableView::New( 4, 1 );
430 fittingModes.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
431 fittingModes.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
432 fittingModes.SetBackgroundColor( BACKGROUND_COLOUR );
433 fittingModes.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE * 0.5 ) );
434 fittingModes.SetFitHeight( 0 );
435 fittingModes.SetFitHeight( 1 );
436 fittingModes.SetFitHeight( 2 );
437 fittingModes.SetFitHeight( 3 );
439 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::SCALE_TO_FILL ) );
440 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::SHRINK_TO_FIT ) );
441 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::FIT_WIDTH ) );
442 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::FIT_HEIGHT ) );
444 mPopup.Add( fittingModes );
447 else if( button.GetName() == SAMPLING_BUTTON_ID )
449 mPopup = CreatePopup();
451 // Table to hold buttons for each sampling mode:
452 Toolkit::TableView samplingModes = Toolkit::TableView::New( 6, 1 );
453 samplingModes.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
454 samplingModes.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
455 samplingModes.SetBackgroundColor( BACKGROUND_COLOUR );
456 samplingModes.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE * 0.5 ) );
457 samplingModes.SetFitHeight( 0 );
458 samplingModes.SetFitHeight( 1 );
459 samplingModes.SetFitHeight( 2 );
460 samplingModes.SetFitHeight( 3 );
461 samplingModes.SetFitHeight( 4 );
462 samplingModes.SetFitHeight( 5 );
464 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::NEAREST ) );
465 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::LINEAR ) );
466 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX ) );
467 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX_THEN_NEAREST ) );
468 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX_THEN_LINEAR ) );
469 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::NO_FILTER ) );
471 mPopup.Add( samplingModes );
474 else if( CheckFittingModeButton( button, FittingMode::SCALE_TO_FILL) ||
475 CheckFittingModeButton( button, FittingMode::SHRINK_TO_FIT) ||
476 CheckFittingModeButton( button, FittingMode::FIT_WIDTH) ||
477 CheckFittingModeButton( button, FittingMode::FIT_HEIGHT) )
480 else if( CheckSamplingModeButton( button, SamplingMode::NEAREST ) ||
481 CheckSamplingModeButton( button, SamplingMode::LINEAR ) ||
482 CheckSamplingModeButton( button, SamplingMode::BOX ) ||
483 CheckSamplingModeButton( button, SamplingMode::LINEAR ) ||
484 CheckSamplingModeButton( button, SamplingMode::BOX_THEN_NEAREST ) ||
485 CheckSamplingModeButton( button, SamplingMode::BOX_THEN_LINEAR ) ||
486 CheckSamplingModeButton( button, SamplingMode::NO_FILTER ) )
492 bool CheckFittingModeButton( Actor &button, FittingMode::Type mode )
494 const char * const modeName = StringFromScalingMode( mode );
495 if( button.GetName() == modeName )
498 mFittingModeButton.SetLabel( modeName );
499 mFittingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
508 bool CheckSamplingModeButton( Actor &button, SamplingMode::Type mode )
510 const char * const modeName = StringFromFilterMode( mode );
511 if( button.GetName() == modeName )
513 mSamplingMode = mode;
514 mSamplingModeButton.SetLabel( modeName );
515 mSamplingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
524 void OnPopupOutsideTouched()
533 void OnImageLoaded( ResourceImage image )
535 DALI_ASSERT_DEBUG( image == mNextImage );
536 mImageActor.SetImage( image );
537 mImageActor.SetSize( Size( image.GetWidth(), image.GetHeight() ) );
540 bool OnControlTouched( Actor actor, const TouchEvent& event )
542 if(event.GetPointCount() > 0)
544 const TouchPoint& point = event.GetPoint(0);
549 const std::string & name = actor.GetName();
550 if( name == NEXT_BUTTON_ID )
552 mCurrentPath = mCurrentPath + 1;
553 mCurrentPath = mCurrentPath < NUM_IMAGE_PATHS ? mCurrentPath : 0;
556 else if( name == PREVIOUS_BUTTON_ID )
558 mCurrentPath = mCurrentPath - 1;
559 mCurrentPath = mCurrentPath >= 0 ? mCurrentPath : NUM_IMAGE_PATHS - 1;
574 void OnPinch( Actor actor, const PinchGesture& pinch )
576 if( pinch.state == Gesture::Started )
578 mLastPinchScale = pinch.scale;
580 const float scale = pinch.scale;
582 if( scale != mLastPinchScale )
584 if ( scale < mLastPinchScale )
586 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
587 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
591 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
592 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
596 mLastPinchScale = scale;
599 void OnPan( Actor actor, const PanGesture& gesture )
601 Stage stage = Stage::GetCurrent();
602 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x + (gesture.displacement.x * 2.0f / stage.GetSize().width ) ) );
603 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y + (gesture.displacement.y * 2.0f / stage.GetSize().height ) ) );
607 void OnKeyEvent(const KeyEvent& event)
609 if( event.state == KeyEvent::Down )
611 if( IsKey( event, Dali::DALI_KEY_ESCAPE ) || IsKey( event, Dali::DALI_KEY_BACK ) )
613 if( mPopup && mPopup.IsVisible() )
623 else if ( event.keyPressedName == "Right" )
625 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
627 else if ( event.keyPressedName == "Left" )
629 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
631 else if ( event.keyPressedName == "Up" )
633 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
635 else if ( event.keyPressedName == "Down" )
637 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
639 else if ( event.keyPressedName == "o" )
641 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
642 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
644 else if ( event.keyPressedName == "p" )
646 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
647 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
649 else if ( event.keyPressedName == "n" )
651 mCurrentPath = mCurrentPath + 1;
652 mCurrentPath = mCurrentPath < NUM_IMAGE_PATHS ? mCurrentPath : 0;
654 else if ( event.keyPressedName == "b" )
656 mCurrentPath = mCurrentPath - 1;
657 mCurrentPath = mCurrentPath >= 0 ? mCurrentPath : NUM_IMAGE_PATHS - 1;
659 // Cycle filter and scaling modes:
660 else if ( event.keyPressedName == "f" )
662 mSamplingMode = NextFilterMode( mSamplingMode );
663 mSamplingModeButton.SetLabel( StringFromFilterMode( mSamplingMode ) );
664 mSamplingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
666 // Cycle filter and scaling modes:
667 else if ( event.keyPressedName == "s" )
669 mFittingMode = NextScalingMode( mFittingMode );
670 mFittingModeButton.SetLabel( StringFromScalingMode( mFittingMode ) );
671 mFittingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
685 const char * const path = IMAGE_PATHS[mCurrentPath];
687 Stage stage = Stage::GetCurrent();
688 Size imageSize = stage.GetSize() * mImageStageScale;
689 const ImageDimensions imageSizeInt = ImageDimensions::FromFloatArray( &imageSize.x );
691 ResourceImage image = ResourceImage::New( path, imageSizeInt, mFittingMode, mSamplingMode );
692 image.LoadingFinishedSignal().Connect( this, &ImageScalingAndFilteringController::OnImageLoaded );
696 mDesiredBox.SetSize( stage.GetSize() * mImageStageScale );
697 mHeightBox.SetSize( stage.GetSize().width, (stage.GetSize() * mImageStageScale).height );
698 mWidthBox.SetSize( (stage.GetSize() * mImageStageScale).width, stage.GetSize().height );
702 Application& mApplication;
703 Actor mDesiredBox; //< Background rectangle to show requested image size.
704 Actor mHeightBox; //< Background horizontal stripe to show requested image height.
705 Actor mWidthBox; //< Background vertical stripe to show requested image width.
706 Toolkit::PushButton mFittingModeButton;
707 Toolkit::PushButton mSamplingModeButton;
708 Toolkit::Popup mPopup;
709 PinchGestureDetector mPinchDetector;
710 float mLastPinchScale;
711 Toolkit::PushButton mGrabCorner;
712 PanGestureDetector mPanGestureDetector;
713 ImageActor mImageActor;
714 ResourceImage mNextImage; //< Currently-loading image
715 Vector2 mImageStageScale;
717 FittingMode::Type mFittingMode;
718 SamplingMode::Type mSamplingMode;
721 void RunTest( Application& application )
723 ImageScalingAndFilteringController test( application );
725 application.MainLoop();
728 // Entry point for Linux & Tizen applications
729 int main( int argc, char **argv )
731 Application application = Application::New( &argc, &argv, DALI_DEMO_THEME_PATH );
733 RunTest( application );