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 <dali-toolkit/devel-api/controls/table-view/table-view.h>
22 #include "shared/view.h"
26 using Toolkit::TextLabel;
31 const char* BACKGROUND_IMAGE( DALI_IMAGE_DIR "background-gradient.jpg" );
32 const Vector4 BACKGROUND_COLOUR( 1.0f, 1.0f, 1.0f, 0.15f );
34 const int MARGIN_SIZE = 10;
36 const char* const NEXT_BUTTON_ID = "NEXT_BUTTON";
37 const char* const PREVIOUS_BUTTON_ID = "PREVIOUS_BUTTON";
38 const char * const DALI_ICON_PLAY = DALI_IMAGE_DIR "icon-play.png";
40 const char* const PUSHBUTTON_PRESS_IMAGE = DALI_IMAGE_DIR "button-down.9.png";
41 const char* const PUSHBUTTON_BUTTON_IMAGE = DALI_IMAGE_DIR "button-up.9.png";
42 const char* const PUSHBUTTON_DISABLED_IMAGE = DALI_IMAGE_DIR "button-disabled.9.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 = "grouplabel";
50 const char* const STYLE_BUTTON_TEXT = "buttonlabel";
54 const char* IMAGE_PATHS[] =
56 // Worst case for aliasing in downscaling, 2k x 2k 1 bit per pixel dithered
57 // black and white image:
58 DALI_IMAGE_DIR "gallery-large-14.wbmp",
59 // Variety of sizes, shapes and formats:
60 DALI_IMAGE_DIR "animation-list.png",
61 DALI_IMAGE_DIR "layer1.png",
62 DALI_IMAGE_DIR "layer2.png",
63 DALI_IMAGE_DIR "music-libray-main-screen.png",
64 DALI_IMAGE_DIR "music-libray-record-cover.png",
65 DALI_IMAGE_DIR "contacts-background.png",
66 DALI_IMAGE_DIR "portrait_screen_primitive_shapes.gif",
67 DALI_IMAGE_DIR "landscape_screen_primitive_shapes.gif",
68 DALI_IMAGE_DIR "square_primitive_shapes.bmp",
69 DALI_IMAGE_DIR "dali-logo.png",
70 DALI_IMAGE_DIR "com.samsung.dali-demo.ico",
71 DALI_IMAGE_DIR "gallery-large-14.jpg",
72 DALI_IMAGE_DIR "book-landscape-cover.jpg",
73 DALI_IMAGE_DIR "book-portrait-p1.jpg",
74 DALI_IMAGE_DIR "book-landscape-cover-back.jpg",
75 DALI_IMAGE_DIR "background-1.jpg",
76 DALI_IMAGE_DIR "background-blocks.jpg",
77 DALI_IMAGE_DIR "background-magnifier.jpg",
78 DALI_IMAGE_DIR "gallery-large-14.jpg",
81 const int NUM_IMAGE_PATHS = sizeof(IMAGE_PATHS) / sizeof(IMAGE_PATHS[0]) - 1u;
83 /** Cycle the scaling mode options. */
84 FittingMode::Type NextScalingMode( FittingMode::Type oldMode )
86 FittingMode::Type newMode = FittingMode::SHRINK_TO_FIT;
89 case FittingMode::SHRINK_TO_FIT:
90 newMode = FittingMode::SCALE_TO_FILL;
92 case FittingMode::SCALE_TO_FILL:
93 newMode = FittingMode::FIT_WIDTH;
95 case FittingMode::FIT_WIDTH:
96 newMode = FittingMode::FIT_HEIGHT;
98 case FittingMode::FIT_HEIGHT:
99 newMode = FittingMode::SHRINK_TO_FIT;
105 /** Cycle through filter mode options. */
106 SamplingMode::Type NextFilterMode( SamplingMode::Type oldMode )
108 SamplingMode::Type newMode = SamplingMode::BOX;
112 case SamplingMode::BOX:
113 newMode = SamplingMode::NEAREST;
115 case SamplingMode::NEAREST:
116 newMode = SamplingMode::LINEAR;
118 case SamplingMode::LINEAR:
119 newMode = SamplingMode::BOX_THEN_NEAREST;
121 case SamplingMode::BOX_THEN_NEAREST:
122 newMode = SamplingMode::BOX_THEN_LINEAR;
124 case SamplingMode::BOX_THEN_LINEAR:
125 newMode = SamplingMode::NO_FILTER;
127 case SamplingMode::NO_FILTER:
128 newMode = SamplingMode::BOX;
130 case SamplingMode::DONT_CARE:
131 newMode = SamplingMode::BOX;
137 const char* StringFromScalingMode( FittingMode::Type scalingMode )
139 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";
142 const char* StringFromFilterMode( SamplingMode::Type filterMode )
144 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";
149 // This example shows the load-time image scaling and filtering features.
151 class ImageScalingAndFilteringController : public ConnectionTracker
155 ImageScalingAndFilteringController( Application& application )
156 : mApplication( application ),
157 mImageStageScale( 0.5f, 0.5f ),
159 mFittingMode( FittingMode::SCALE_TO_FILL ),
160 mSamplingMode( SamplingMode::BOX_THEN_LINEAR)
162 // Connect to the Application's Init signal
163 mApplication.InitSignal().Connect( this, &ImageScalingAndFilteringController::Create );
166 ~ImageScalingAndFilteringController()
168 // Nothing to do here;
171 // The Init signal is received once (only) during the Application lifetime
172 void Create( Application& application )
174 // Apply the default theme:
175 DemoHelper::RequestThemeChange();
177 // Get a handle to the stage
178 Stage stage = Stage::GetCurrent();
181 ResourceImage backgroundImage = ResourceImage::New( BACKGROUND_IMAGE, ImageDimensions( stage.GetSize().width, stage.GetSize().height ), FittingMode::SCALE_TO_FILL, SamplingMode::BOX_THEN_LINEAR );
182 ImageActor background = ImageActor::New( backgroundImage );
183 background.SetZ( -2.0f );
184 background.SetAnchorPoint( AnchorPoint::TOP_LEFT );
185 background.SetSize( stage.GetSize() );
186 stage.Add( background );
188 // Make grey pixels for the desired box, the desired height the desired width:
189 BufferImage desiredBackground = BufferImage::WHITE();
191 BufferImage heightBackground = BufferImage::WHITE();
192 PixelBuffer* const heightPixel = heightBackground.GetBuffer();
193 heightPixel[0] = 0x8f;
194 heightPixel[1] = 0x8f;
195 heightPixel[2] = 0x8f;
197 BufferImage widthBackground = BufferImage::WHITE();
198 PixelBuffer* const widthPixel = widthBackground.GetBuffer();
199 widthPixel[0] = 0x4f;
200 widthPixel[1] = 0x4f;
201 widthPixel[2] = 0x4f;
203 mHeightBox = ImageActor::New( heightBackground );
204 mHeightBox.SetOpacity( 0.2f );
205 stage.Add( mHeightBox );
207 mWidthBox = ImageActor::New( widthBackground );
208 mWidthBox.SetOpacity( 0.2f );
209 stage.Add( mWidthBox );
211 mDesiredBox = ImageActor::New( desiredBackground );
212 stage.Add( mDesiredBox );
214 mDesiredBox.SetSize( stage.GetSize() * mImageStageScale );
215 mDesiredBox.SetParentOrigin( ParentOrigin::CENTER );
216 mDesiredBox.SetAnchorPoint( AnchorPoint::CENTER );
217 mDesiredBox.SetPosition( 0, 0, -1 );
219 mHeightBox.SetSize( stage.GetSize().width, (stage.GetSize() * mImageStageScale).height );
220 mHeightBox.SetParentOrigin( ParentOrigin::CENTER );
221 mHeightBox.SetAnchorPoint( AnchorPoint::CENTER );
222 mHeightBox.SetPosition( 0, 0, -1 );
224 mWidthBox.SetSize( (stage.GetSize() * mImageStageScale).width, stage.GetSize().height );
225 mWidthBox.SetParentOrigin( ParentOrigin::CENTER );
226 mWidthBox.SetAnchorPoint( AnchorPoint::CENTER );
227 mWidthBox.SetPosition( 0, 0, -1 );
229 // Make a grab-handle for resizing the image:
230 mGrabCorner = Toolkit::PushButton::New();
231 mGrabCorner.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::WIDTH );
232 mGrabCorner.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
233 mGrabCorner.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
234 mGrabCorner.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
235 mGrabCorner.SetDisabledImage( Dali::ResourceImage::New( PUSHBUTTON_DISABLED_IMAGE ) );
236 mGrabCorner.SetName( "GrabCorner" );
237 mGrabCorner.SetAnchorPoint( AnchorPoint::BOTTOM_RIGHT );
238 mGrabCorner.SetParentOrigin( ParentOrigin::BOTTOM_RIGHT );
239 mGrabCorner.SetSize( Vector2( stage.GetSize().width*0.08f, stage.GetSize().width*0.08f ) );
240 mGrabCorner.SetZ( 1.0f );
241 mGrabCorner.SetOpacity( 0.6f );
242 mDesiredBox.Add( mGrabCorner );
243 mPanGestureDetector = PanGestureDetector::New();
244 mPanGestureDetector.Attach( mGrabCorner );
245 mPanGestureDetector.DetectedSignal().Connect( this, &ImageScalingAndFilteringController::OnPan );
247 // Initialize the actor
248 mImageActor = ImageActor::New();
250 // Reposition the actor
251 mImageActor.SetParentOrigin( ParentOrigin::CENTER );
252 mImageActor.SetAnchorPoint( AnchorPoint::CENTER );
254 // Display the actor on the stage
255 stage.Add( mImageActor );
257 mImageActor.SetSize( stage.GetSize() * mImageStageScale );
259 // Setup the pinch detector for scaling the desired image load dimensions:
260 mPinchDetector = PinchGestureDetector::New();
261 mPinchDetector.Attach( mImageActor );
262 mPinchDetector.DetectedSignal().Connect( this, &ImageScalingAndFilteringController::OnPinch );
264 // Tie-in input event handlers:
265 stage.KeyEventSignal().Connect( this, &ImageScalingAndFilteringController::OnKeyEvent );
273 * Create the GUI controls which float above the scene
275 void CreateControls()
277 Stage stage = Stage::GetCurrent();
279 Dali::Layer controlsLayer = Dali::Layer::New();
280 controlsLayer.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
281 controlsLayer.SetSizeModeFactor( Vector3( 1.0f, 1.0f, 1.0f ) );
282 controlsLayer.SetAnchorPoint( AnchorPoint::TOP_LEFT);
283 controlsLayer.SetParentOrigin( ParentOrigin::TOP_LEFT);
284 stage.Add( controlsLayer );
286 // Back and next image buttons in corners of stage:
287 unsigned int playWidth = std::min( stage.GetSize().x * (1 / 5.0f), 58.0f );
288 Image playImage = ResourceImage::New( DALI_ICON_PLAY, ImageDimensions( playWidth, playWidth ), FittingMode::SHRINK_TO_FIT, SamplingMode::BOX_THEN_LINEAR );
289 Actor imagePrevious = ImageActor::New( playImage );
291 // Last image button:
292 imagePrevious.SetAnchorPoint( AnchorPoint::TOP_LEFT );
293 imagePrevious.RotateBy( Radian(3.14159265358979323846f), Vector3( 0, 1.0f, 0 ) );
294 imagePrevious.SetY( playWidth * 0.5f );
295 imagePrevious.SetX( playWidth + playWidth * 0.5f );
296 imagePrevious.SetOpacity( 0.6f );
297 controlsLayer.Add( imagePrevious );
298 imagePrevious.SetName( PREVIOUS_BUTTON_ID );
299 imagePrevious.TouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnControlTouched );
301 // Next image button:
302 Actor imageNext = ImageActor::New( playImage );
303 imageNext.SetAnchorPoint( AnchorPoint::TOP_RIGHT );
304 imageNext.SetY( playWidth * 0.5f );
305 imageNext.SetX( stage.GetSize().x - playWidth * 0.5f );
306 imageNext.SetOpacity( 0.6f );
307 controlsLayer.Add( imageNext );
308 imageNext.SetName( NEXT_BUTTON_ID );
309 imageNext.TouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnControlTouched );
311 // Buttons to popup selectors for fitting and sampling modes:
313 // Wrapper table to hold two buttons side by side:
314 Toolkit::TableView modesGroupBackground = Toolkit::TableView::New( 1, 2 );
315 modesGroupBackground.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
316 modesGroupBackground.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
317 modesGroupBackground.SetBackgroundColor( BACKGROUND_COLOUR );
318 modesGroupBackground.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE ) );
319 modesGroupBackground.SetFitHeight( 0 );
321 modesGroupBackground.SetAnchorPoint( AnchorPoint::BOTTOM_LEFT );
322 modesGroupBackground.SetParentOrigin( ParentOrigin::BOTTOM_LEFT );
323 modesGroupBackground.SetPosition( 0.0f, 0.0f );
325 controlsLayer.Add( modesGroupBackground );
328 // Vertical table to hold label and button:
329 Toolkit::TableView fittingModeGroup = Toolkit::TableView::New( 2, 1 );
330 fittingModeGroup.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
331 fittingModeGroup.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
332 fittingModeGroup.SetBackgroundColor( BACKGROUND_COLOUR );
333 fittingModeGroup.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE * 0.5f ) );
334 fittingModeGroup.SetFitHeight( 0 );
335 fittingModeGroup.SetFitHeight( 1 );
337 TextLabel label = TextLabel::New( "Image fitting mode:" );
338 label.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_LABEL_TEXT );
339 fittingModeGroup.Add( label );
341 Toolkit::PushButton button = CreateButton( FITTING_BUTTON_ID, StringFromScalingMode( mFittingMode ) );
342 button.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
343 fittingModeGroup.Add( button );
344 mFittingModeButton = button;
346 modesGroupBackground.Add( fittingModeGroup );
350 // Vertical table to hold label and button:
351 Toolkit::TableView samplingModeGroup = Toolkit::TableView::New( 2, 1 );
352 samplingModeGroup.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
353 samplingModeGroup.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
354 samplingModeGroup.SetBackgroundColor( BACKGROUND_COLOUR );
355 samplingModeGroup.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE * 0.5f ) );
356 samplingModeGroup.SetFitHeight( 0 );
357 samplingModeGroup.SetFitHeight( 1 );
359 TextLabel label = TextLabel::New( "Image sampling mode:" );
360 label.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_LABEL_TEXT );
361 samplingModeGroup.Add( label );
363 Toolkit::PushButton button = CreateButton( SAMPLING_BUTTON_ID, StringFromFilterMode( mSamplingMode ) );
364 button.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
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.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
376 button.SetName( id );
377 button.SetLabel( label );
378 button.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
379 button.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
380 button.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
381 button.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
382 button.SetDisabledImage( Dali::ResourceImage::New( PUSHBUTTON_DISABLED_IMAGE ) );
383 button.ClickedSignal().Connect( this, &ImageScalingAndFilteringController::OnButtonClicked );
387 Toolkit::Popup CreatePopup()
389 Stage stage = Stage::GetCurrent();
390 const float POPUP_WIDTH_DP = stage.GetSize().width * 0.75f;
392 Toolkit::Popup popup = Toolkit::Popup::New();
393 popup.SetName( "POPUP" );
394 popup.SetParentOrigin( ParentOrigin::CENTER );
395 popup.SetAnchorPoint( AnchorPoint::CENTER );
396 popup.SetSize( POPUP_WIDTH_DP, 0.0f );
399 popup.OutsideTouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnPopupOutsideTouched );
404 //void CreatePopupButton( Toolkit::Popup popup, const char* id )
405 Toolkit::PushButton CreatePopupButton( Actor parent, const char* id )
407 Toolkit::PushButton button = Toolkit::PushButton::New();
408 button.SetName( id );
409 button.SetLabel( id );
410 button.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
411 button.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
412 Toolkit::TextLabel textLabel = Toolkit::TextLabel::DownCast( button.GetLabel() );
413 textLabel.SetProperty( TextLabel::Property::POINT_SIZE, 12.0f );
415 button.SetAnchorPoint( AnchorPoint::TOP_LEFT );
416 button.SetParentOrigin( ParentOrigin::BOTTOM_LEFT );
417 button.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
418 button.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
420 button.ClickedSignal().Connect( this, &ImageScalingAndFilteringController::OnButtonClicked );
422 parent.Add( button );
426 bool OnButtonClicked( Toolkit::Button button )
428 if( button.GetName() == FITTING_BUTTON_ID )
430 mPopup = CreatePopup();
432 // Four-row table to hold buttons:
433 Toolkit::TableView fittingModes = Toolkit::TableView::New( 4, 1 );
434 fittingModes.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
435 fittingModes.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
436 fittingModes.SetBackgroundColor( BACKGROUND_COLOUR );
437 fittingModes.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE * 0.5 ) );
438 fittingModes.SetFitHeight( 0 );
439 fittingModes.SetFitHeight( 1 );
440 fittingModes.SetFitHeight( 2 );
441 fittingModes.SetFitHeight( 3 );
443 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::SCALE_TO_FILL ) );
444 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::SHRINK_TO_FIT ) );
445 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::FIT_WIDTH ) );
446 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::FIT_HEIGHT ) );
448 mPopup.Add( fittingModes );
451 else if( button.GetName() == SAMPLING_BUTTON_ID )
453 mPopup = CreatePopup();
455 // Table to hold buttons for each sampling mode:
456 Toolkit::TableView samplingModes = Toolkit::TableView::New( 6, 1 );
457 samplingModes.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
458 samplingModes.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
459 samplingModes.SetBackgroundColor( BACKGROUND_COLOUR );
460 samplingModes.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE * 0.5 ) );
461 samplingModes.SetFitHeight( 0 );
462 samplingModes.SetFitHeight( 1 );
463 samplingModes.SetFitHeight( 2 );
464 samplingModes.SetFitHeight( 3 );
465 samplingModes.SetFitHeight( 4 );
466 samplingModes.SetFitHeight( 5 );
468 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::NEAREST ) );
469 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::LINEAR ) );
470 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX ) );
471 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX_THEN_NEAREST ) );
472 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX_THEN_LINEAR ) );
473 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::NO_FILTER ) );
475 mPopup.Add( samplingModes );
478 else if( CheckFittingModeButton( button, FittingMode::SCALE_TO_FILL) ||
479 CheckFittingModeButton( button, FittingMode::SHRINK_TO_FIT) ||
480 CheckFittingModeButton( button, FittingMode::FIT_WIDTH) ||
481 CheckFittingModeButton( button, FittingMode::FIT_HEIGHT) )
484 else if( CheckSamplingModeButton( button, SamplingMode::NEAREST ) ||
485 CheckSamplingModeButton( button, SamplingMode::LINEAR ) ||
486 CheckSamplingModeButton( button, SamplingMode::BOX ) ||
487 CheckSamplingModeButton( button, SamplingMode::LINEAR ) ||
488 CheckSamplingModeButton( button, SamplingMode::BOX_THEN_NEAREST ) ||
489 CheckSamplingModeButton( button, SamplingMode::BOX_THEN_LINEAR ) ||
490 CheckSamplingModeButton( button, SamplingMode::NO_FILTER ) )
496 bool CheckFittingModeButton( Actor &button, FittingMode::Type mode )
498 const char * const modeName = StringFromScalingMode( mode );
499 if( button.GetName() == modeName )
502 mFittingModeButton.SetLabel( modeName );
503 mFittingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
512 bool CheckSamplingModeButton( Actor &button, SamplingMode::Type mode )
514 const char * const modeName = StringFromFilterMode( mode );
515 if( button.GetName() == modeName )
517 mSamplingMode = mode;
518 mSamplingModeButton.SetLabel( modeName );
519 mSamplingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
528 void OnPopupOutsideTouched()
537 void OnImageLoaded( ResourceImage image )
539 DALI_ASSERT_DEBUG( image == mNextImage );
540 mImageActor.SetImage( image );
541 mImageActor.SetSize( Size( image.GetWidth(), image.GetHeight() ) );
544 bool OnControlTouched( Actor actor, const TouchEvent& event )
546 if(event.GetPointCount() > 0)
548 const TouchPoint& point = event.GetPoint(0);
553 const std::string & name = actor.GetName();
554 if( name == NEXT_BUTTON_ID )
556 mCurrentPath = mCurrentPath + 1;
557 mCurrentPath = mCurrentPath < NUM_IMAGE_PATHS ? mCurrentPath : 0;
560 else if( name == PREVIOUS_BUTTON_ID )
562 mCurrentPath = mCurrentPath - 1;
563 mCurrentPath = mCurrentPath >= 0 ? mCurrentPath : NUM_IMAGE_PATHS - 1;
578 void OnPinch( Actor actor, const PinchGesture& pinch )
580 if( pinch.state == Gesture::Started )
582 mLastPinchScale = pinch.scale;
584 const float scale = pinch.scale;
586 if( scale != mLastPinchScale )
588 if ( scale < mLastPinchScale )
590 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
591 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
595 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
596 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
600 mLastPinchScale = scale;
603 void OnPan( Actor actor, const PanGesture& gesture )
605 Stage stage = Stage::GetCurrent();
606 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x + (gesture.displacement.x * 2.0f / stage.GetSize().width ) ) );
607 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y + (gesture.displacement.y * 2.0f / stage.GetSize().height ) ) );
611 void OnKeyEvent(const KeyEvent& event)
613 if( event.state == KeyEvent::Down )
615 if( IsKey( event, Dali::DALI_KEY_ESCAPE ) || IsKey( event, Dali::DALI_KEY_BACK ) )
617 if( mPopup && mPopup.IsVisible() )
627 else if ( event.keyPressedName == "Right" )
629 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
631 else if ( event.keyPressedName == "Left" )
633 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
635 else if ( event.keyPressedName == "Up" )
637 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
639 else if ( event.keyPressedName == "Down" )
641 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
643 else if ( event.keyPressedName == "o" )
645 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
646 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
648 else if ( event.keyPressedName == "p" )
650 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
651 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
653 else if ( event.keyPressedName == "n" )
655 mCurrentPath = mCurrentPath + 1;
656 mCurrentPath = mCurrentPath < NUM_IMAGE_PATHS ? mCurrentPath : 0;
658 else if ( event.keyPressedName == "b" )
660 mCurrentPath = mCurrentPath - 1;
661 mCurrentPath = mCurrentPath >= 0 ? mCurrentPath : NUM_IMAGE_PATHS - 1;
663 // Cycle filter and scaling modes:
664 else if ( event.keyPressedName == "f" )
666 mSamplingMode = NextFilterMode( mSamplingMode );
667 mSamplingModeButton.SetLabel( StringFromFilterMode( mSamplingMode ) );
668 mSamplingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
670 // Cycle filter and scaling modes:
671 else if ( event.keyPressedName == "s" )
673 mFittingMode = NextScalingMode( mFittingMode );
674 mFittingModeButton.SetLabel( StringFromScalingMode( mFittingMode ) );
675 mFittingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
689 const char * const path = IMAGE_PATHS[mCurrentPath];
691 Stage stage = Stage::GetCurrent();
692 Size imageSize = stage.GetSize() * mImageStageScale;
693 const ImageDimensions imageSizeInt = ImageDimensions::FromFloatArray( &imageSize.x );
695 ResourceImage image = ResourceImage::New( path, imageSizeInt, mFittingMode, mSamplingMode );
696 image.LoadingFinishedSignal().Connect( this, &ImageScalingAndFilteringController::OnImageLoaded );
700 mDesiredBox.SetSize( stage.GetSize() * mImageStageScale );
701 mHeightBox.SetSize( stage.GetSize().width, (stage.GetSize() * mImageStageScale).height );
702 mWidthBox.SetSize( (stage.GetSize() * mImageStageScale).width, stage.GetSize().height );
706 Application& mApplication;
707 Actor mDesiredBox; //< Background rectangle to show requested image size.
708 Actor mHeightBox; //< Background horizontal stripe to show requested image height.
709 Actor 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::PushButton mGrabCorner;
716 PanGestureDetector mPanGestureDetector;
717 ImageActor mImageActor;
718 ResourceImage mNextImage; //< Currently-loading image
719 Vector2 mImageStageScale;
721 FittingMode::Type mFittingMode;
722 SamplingMode::Type mSamplingMode;
725 void RunTest( Application& application )
727 ImageScalingAndFilteringController test( application );
729 application.MainLoop();
732 // Entry point for Linux & Tizen applications
733 int main( int argc, char **argv )
735 Application application = Application::New( &argc, &argv );
737 RunTest( application );