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 // Get a handle to the stage
175 Stage stage = Stage::GetCurrent();
178 ResourceImage backgroundImage = ResourceImage::New( BACKGROUND_IMAGE, ImageDimensions( stage.GetSize().width, stage.GetSize().height ), FittingMode::SCALE_TO_FILL, SamplingMode::BOX_THEN_LINEAR );
179 ImageActor background = ImageActor::New( backgroundImage );
180 background.SetZ( -2.0f );
181 background.SetAnchorPoint( AnchorPoint::TOP_LEFT );
182 background.SetSize( stage.GetSize() );
183 stage.Add( background );
185 // Make grey pixels for the desired box, the desired height the desired width:
186 BufferImage desiredBackground = BufferImage::WHITE();
188 BufferImage heightBackground = BufferImage::WHITE();
189 PixelBuffer* const heightPixel = heightBackground.GetBuffer();
190 heightPixel[0] = 0x8f;
191 heightPixel[1] = 0x8f;
192 heightPixel[2] = 0x8f;
194 BufferImage widthBackground = BufferImage::WHITE();
195 PixelBuffer* const widthPixel = widthBackground.GetBuffer();
196 widthPixel[0] = 0x4f;
197 widthPixel[1] = 0x4f;
198 widthPixel[2] = 0x4f;
200 mHeightBox = ImageActor::New( heightBackground );
201 mHeightBox.SetOpacity( 0.2f );
202 stage.Add( mHeightBox );
204 mWidthBox = ImageActor::New( widthBackground );
205 mWidthBox.SetOpacity( 0.2f );
206 stage.Add( mWidthBox );
208 mDesiredBox = ImageActor::New( desiredBackground );
209 stage.Add( mDesiredBox );
211 mDesiredBox.SetSize( stage.GetSize() * mImageStageScale );
212 mDesiredBox.SetParentOrigin( ParentOrigin::CENTER );
213 mDesiredBox.SetAnchorPoint( AnchorPoint::CENTER );
214 mDesiredBox.SetPosition( 0, 0, -1 );
216 mHeightBox.SetSize( stage.GetSize().width, (stage.GetSize() * mImageStageScale).height );
217 mHeightBox.SetParentOrigin( ParentOrigin::CENTER );
218 mHeightBox.SetAnchorPoint( AnchorPoint::CENTER );
219 mHeightBox.SetPosition( 0, 0, -1 );
221 mWidthBox.SetSize( (stage.GetSize() * mImageStageScale).width, stage.GetSize().height );
222 mWidthBox.SetParentOrigin( ParentOrigin::CENTER );
223 mWidthBox.SetAnchorPoint( AnchorPoint::CENTER );
224 mWidthBox.SetPosition( 0, 0, -1 );
226 // Make a grab-handle for resizing the image:
227 mGrabCorner = Toolkit::PushButton::New();
228 mGrabCorner.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::WIDTH );
229 mGrabCorner.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
230 mGrabCorner.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
231 mGrabCorner.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
232 mGrabCorner.SetDisabledImage( Dali::ResourceImage::New( PUSHBUTTON_DISABLED_IMAGE ) );
233 mGrabCorner.SetName( "GrabCorner" );
234 mGrabCorner.SetAnchorPoint( AnchorPoint::BOTTOM_RIGHT );
235 mGrabCorner.SetParentOrigin( ParentOrigin::BOTTOM_RIGHT );
236 mGrabCorner.SetSize( Vector2( stage.GetSize().width*0.08f, stage.GetSize().width*0.08f ) );
237 mGrabCorner.SetZ( 1.0f );
238 mGrabCorner.SetOpacity( 0.6f );
239 mDesiredBox.Add( mGrabCorner );
240 mPanGestureDetector = PanGestureDetector::New();
241 mPanGestureDetector.Attach( mGrabCorner );
242 mPanGestureDetector.DetectedSignal().Connect( this, &ImageScalingAndFilteringController::OnPan );
244 // Initialize the actor
245 mImageActor = ImageActor::New();
247 // Reposition the actor
248 mImageActor.SetParentOrigin( ParentOrigin::CENTER );
249 mImageActor.SetAnchorPoint( AnchorPoint::CENTER );
251 // Display the actor on the stage
252 stage.Add( mImageActor );
254 mImageActor.SetSize( stage.GetSize() * mImageStageScale );
256 // Setup the pinch detector for scaling the desired image load dimensions:
257 mPinchDetector = PinchGestureDetector::New();
258 mPinchDetector.Attach( mImageActor );
259 mPinchDetector.DetectedSignal().Connect( this, &ImageScalingAndFilteringController::OnPinch );
261 // Tie-in input event handlers:
262 stage.KeyEventSignal().Connect( this, &ImageScalingAndFilteringController::OnKeyEvent );
270 * Create the GUI controls which float above the scene
272 void CreateControls()
274 Stage stage = Stage::GetCurrent();
276 Dali::Layer controlsLayer = Dali::Layer::New();
277 controlsLayer.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
278 controlsLayer.SetSizeModeFactor( Vector3( 1.0f, 1.0f, 1.0f ) );
279 controlsLayer.SetAnchorPoint( AnchorPoint::TOP_LEFT);
280 controlsLayer.SetParentOrigin( ParentOrigin::TOP_LEFT);
281 stage.Add( controlsLayer );
283 // Back and next image buttons in corners of stage:
284 unsigned int playWidth = std::min( stage.GetSize().x * (1 / 5.0f), 58.0f );
285 Image playImage = ResourceImage::New( DALI_ICON_PLAY, ImageDimensions( playWidth, playWidth ), FittingMode::SHRINK_TO_FIT, SamplingMode::BOX_THEN_LINEAR );
286 Actor imagePrevious = ImageActor::New( playImage );
288 // Last image button:
289 imagePrevious.SetAnchorPoint( AnchorPoint::TOP_LEFT );
290 imagePrevious.RotateBy( Radian(3.14159265358979323846f), Vector3( 0, 1.0f, 0 ) );
291 imagePrevious.SetY( playWidth * 0.5f );
292 imagePrevious.SetX( playWidth + playWidth * 0.5f );
293 imagePrevious.SetOpacity( 0.6f );
294 controlsLayer.Add( imagePrevious );
295 imagePrevious.SetName( PREVIOUS_BUTTON_ID );
296 imagePrevious.TouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnControlTouched );
298 // Next image button:
299 Actor imageNext = ImageActor::New( playImage );
300 imageNext.SetAnchorPoint( AnchorPoint::TOP_RIGHT );
301 imageNext.SetY( playWidth * 0.5f );
302 imageNext.SetX( stage.GetSize().x - playWidth * 0.5f );
303 imageNext.SetOpacity( 0.6f );
304 controlsLayer.Add( imageNext );
305 imageNext.SetName( NEXT_BUTTON_ID );
306 imageNext.TouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnControlTouched );
308 // Buttons to popup selectors for fitting and sampling modes:
310 // Wrapper table to hold two buttons side by side:
311 Toolkit::TableView modesGroupBackground = Toolkit::TableView::New( 1, 2 );
312 modesGroupBackground.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
313 modesGroupBackground.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
314 modesGroupBackground.SetBackgroundColor( BACKGROUND_COLOUR );
315 modesGroupBackground.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE ) );
316 modesGroupBackground.SetFitHeight( 0 );
318 modesGroupBackground.SetAnchorPoint( AnchorPoint::BOTTOM_LEFT );
319 modesGroupBackground.SetParentOrigin( ParentOrigin::BOTTOM_LEFT );
320 modesGroupBackground.SetPosition( 0.0f, 0.0f );
322 controlsLayer.Add( modesGroupBackground );
325 // Vertical table to hold label and button:
326 Toolkit::TableView fittingModeGroup = Toolkit::TableView::New( 2, 1 );
327 fittingModeGroup.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
328 fittingModeGroup.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
329 fittingModeGroup.SetBackgroundColor( BACKGROUND_COLOUR );
330 fittingModeGroup.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE * 0.5f ) );
331 fittingModeGroup.SetFitHeight( 0 );
332 fittingModeGroup.SetFitHeight( 1 );
334 TextLabel label = TextLabel::New( "Image fitting mode:" );
335 label.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_LABEL_TEXT );
336 fittingModeGroup.Add( label );
338 Toolkit::PushButton button = CreateButton( FITTING_BUTTON_ID, StringFromScalingMode( mFittingMode ) );
339 button.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
340 fittingModeGroup.Add( button );
341 mFittingModeButton = button;
343 modesGroupBackground.Add( fittingModeGroup );
347 // Vertical table to hold label and button:
348 Toolkit::TableView samplingModeGroup = Toolkit::TableView::New( 2, 1 );
349 samplingModeGroup.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
350 samplingModeGroup.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
351 samplingModeGroup.SetBackgroundColor( BACKGROUND_COLOUR );
352 samplingModeGroup.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE * 0.5f ) );
353 samplingModeGroup.SetFitHeight( 0 );
354 samplingModeGroup.SetFitHeight( 1 );
356 TextLabel label = TextLabel::New( "Image sampling mode:" );
357 label.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_LABEL_TEXT );
358 samplingModeGroup.Add( label );
360 Toolkit::PushButton button = CreateButton( SAMPLING_BUTTON_ID, StringFromFilterMode( mSamplingMode ) );
361 button.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
362 samplingModeGroup.Add( button );
363 mSamplingModeButton = button;
365 modesGroupBackground.Add( samplingModeGroup );
369 Toolkit::PushButton CreateButton( const char * id, const char * label )
371 Toolkit::PushButton button = Toolkit::PushButton::New();
372 button.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
373 button.SetName( id );
374 button.SetLabel( label );
375 button.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
376 button.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
377 button.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
378 button.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
379 button.SetDisabledImage( Dali::ResourceImage::New( PUSHBUTTON_DISABLED_IMAGE ) );
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 );
396 popup.OutsideTouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnPopupOutsideTouched );
401 //void CreatePopupButton( Toolkit::Popup popup, const char* id )
402 Toolkit::PushButton CreatePopupButton( Actor parent, const char* id )
404 Toolkit::PushButton button = Toolkit::PushButton::New();
405 button.SetName( id );
406 button.SetLabel( id );
407 button.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
408 button.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
409 Toolkit::TextLabel textLabel = Toolkit::TextLabel::DownCast( button.GetLabel() );
410 textLabel.SetProperty( TextLabel::Property::POINT_SIZE, 12.0f );
412 button.SetAnchorPoint( AnchorPoint::TOP_LEFT );
413 button.SetParentOrigin( ParentOrigin::BOTTOM_LEFT );
414 button.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
415 button.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
417 button.ClickedSignal().Connect( this, &ImageScalingAndFilteringController::OnButtonClicked );
419 parent.Add( button );
423 bool OnButtonClicked( Toolkit::Button button )
425 if( button.GetName() == FITTING_BUTTON_ID )
427 mPopup = CreatePopup();
429 // Four-row table to hold buttons:
430 Toolkit::TableView fittingModes = Toolkit::TableView::New( 4, 1 );
431 fittingModes.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
432 fittingModes.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
433 fittingModes.SetBackgroundColor( BACKGROUND_COLOUR );
434 fittingModes.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE * 0.5 ) );
435 fittingModes.SetFitHeight( 0 );
436 fittingModes.SetFitHeight( 1 );
437 fittingModes.SetFitHeight( 2 );
438 fittingModes.SetFitHeight( 3 );
440 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::SCALE_TO_FILL ) );
441 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::SHRINK_TO_FIT ) );
442 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::FIT_WIDTH ) );
443 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::FIT_HEIGHT ) );
445 mPopup.Add( fittingModes );
448 else if( button.GetName() == SAMPLING_BUTTON_ID )
450 mPopup = CreatePopup();
452 // Table to hold buttons for each sampling mode:
453 Toolkit::TableView samplingModes = Toolkit::TableView::New( 6, 1 );
454 samplingModes.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
455 samplingModes.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
456 samplingModes.SetBackgroundColor( BACKGROUND_COLOUR );
457 samplingModes.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE * 0.5 ) );
458 samplingModes.SetFitHeight( 0 );
459 samplingModes.SetFitHeight( 1 );
460 samplingModes.SetFitHeight( 2 );
461 samplingModes.SetFitHeight( 3 );
462 samplingModes.SetFitHeight( 4 );
463 samplingModes.SetFitHeight( 5 );
465 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::NEAREST ) );
466 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::LINEAR ) );
467 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX ) );
468 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX_THEN_NEAREST ) );
469 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX_THEN_LINEAR ) );
470 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::NO_FILTER ) );
472 mPopup.Add( samplingModes );
475 else if( CheckFittingModeButton( button, FittingMode::SCALE_TO_FILL) ||
476 CheckFittingModeButton( button, FittingMode::SHRINK_TO_FIT) ||
477 CheckFittingModeButton( button, FittingMode::FIT_WIDTH) ||
478 CheckFittingModeButton( button, FittingMode::FIT_HEIGHT) )
481 else if( CheckSamplingModeButton( button, SamplingMode::NEAREST ) ||
482 CheckSamplingModeButton( button, SamplingMode::LINEAR ) ||
483 CheckSamplingModeButton( button, SamplingMode::BOX ) ||
484 CheckSamplingModeButton( button, SamplingMode::LINEAR ) ||
485 CheckSamplingModeButton( button, SamplingMode::BOX_THEN_NEAREST ) ||
486 CheckSamplingModeButton( button, SamplingMode::BOX_THEN_LINEAR ) ||
487 CheckSamplingModeButton( button, SamplingMode::NO_FILTER ) )
493 bool CheckFittingModeButton( Actor &button, FittingMode::Type mode )
495 const char * const modeName = StringFromScalingMode( mode );
496 if( button.GetName() == modeName )
499 mFittingModeButton.SetLabel( modeName );
500 mFittingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
509 bool CheckSamplingModeButton( Actor &button, SamplingMode::Type mode )
511 const char * const modeName = StringFromFilterMode( mode );
512 if( button.GetName() == modeName )
514 mSamplingMode = mode;
515 mSamplingModeButton.SetLabel( modeName );
516 mSamplingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
525 void OnPopupOutsideTouched()
534 void OnImageLoaded( ResourceImage image )
536 DALI_ASSERT_DEBUG( image == mNextImage );
537 mImageActor.SetImage( image );
538 mImageActor.SetSize( Size( image.GetWidth(), image.GetHeight() ) );
541 bool OnControlTouched( Actor actor, const TouchEvent& event )
543 if(event.GetPointCount() > 0)
545 const TouchPoint& point = event.GetPoint(0);
550 const std::string & name = actor.GetName();
551 if( name == NEXT_BUTTON_ID )
553 mCurrentPath = mCurrentPath + 1;
554 mCurrentPath = mCurrentPath < NUM_IMAGE_PATHS ? mCurrentPath : 0;
557 else if( name == PREVIOUS_BUTTON_ID )
559 mCurrentPath = mCurrentPath - 1;
560 mCurrentPath = mCurrentPath >= 0 ? mCurrentPath : NUM_IMAGE_PATHS - 1;
575 void OnPinch( Actor actor, const PinchGesture& pinch )
577 if( pinch.state == Gesture::Started )
579 mLastPinchScale = pinch.scale;
581 const float scale = pinch.scale;
583 if( scale != mLastPinchScale )
585 if ( scale < mLastPinchScale )
587 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
588 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
592 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
593 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
597 mLastPinchScale = scale;
600 void OnPan( Actor actor, const PanGesture& gesture )
602 Stage stage = Stage::GetCurrent();
603 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x + (gesture.displacement.x * 2.0f / stage.GetSize().width ) ) );
604 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y + (gesture.displacement.y * 2.0f / stage.GetSize().height ) ) );
608 void OnKeyEvent(const KeyEvent& event)
610 if( event.state == KeyEvent::Down )
612 if( IsKey( event, Dali::DALI_KEY_ESCAPE ) || IsKey( event, Dali::DALI_KEY_BACK ) )
614 if( mPopup && mPopup.IsVisible() )
624 else if ( event.keyPressedName == "Right" )
626 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
628 else if ( event.keyPressedName == "Left" )
630 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
632 else if ( event.keyPressedName == "Up" )
634 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
636 else if ( event.keyPressedName == "Down" )
638 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
640 else if ( event.keyPressedName == "o" )
642 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
643 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
645 else if ( event.keyPressedName == "p" )
647 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
648 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
650 else if ( event.keyPressedName == "n" )
652 mCurrentPath = mCurrentPath + 1;
653 mCurrentPath = mCurrentPath < NUM_IMAGE_PATHS ? mCurrentPath : 0;
655 else if ( event.keyPressedName == "b" )
657 mCurrentPath = mCurrentPath - 1;
658 mCurrentPath = mCurrentPath >= 0 ? mCurrentPath : NUM_IMAGE_PATHS - 1;
660 // Cycle filter and scaling modes:
661 else if ( event.keyPressedName == "f" )
663 mSamplingMode = NextFilterMode( mSamplingMode );
664 mSamplingModeButton.SetLabel( StringFromFilterMode( mSamplingMode ) );
665 mSamplingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
667 // Cycle filter and scaling modes:
668 else if ( event.keyPressedName == "s" )
670 mFittingMode = NextScalingMode( mFittingMode );
671 mFittingModeButton.SetLabel( StringFromScalingMode( mFittingMode ) );
672 mFittingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
686 const char * const path = IMAGE_PATHS[mCurrentPath];
688 Stage stage = Stage::GetCurrent();
689 Size imageSize = stage.GetSize() * mImageStageScale;
690 const ImageDimensions imageSizeInt = ImageDimensions::FromFloatArray( &imageSize.x );
692 ResourceImage image = ResourceImage::New( path, imageSizeInt, mFittingMode, mSamplingMode );
693 image.LoadingFinishedSignal().Connect( this, &ImageScalingAndFilteringController::OnImageLoaded );
697 mDesiredBox.SetSize( stage.GetSize() * mImageStageScale );
698 mHeightBox.SetSize( stage.GetSize().width, (stage.GetSize() * mImageStageScale).height );
699 mWidthBox.SetSize( (stage.GetSize() * mImageStageScale).width, stage.GetSize().height );
703 Application& mApplication;
704 Actor mDesiredBox; //< Background rectangle to show requested image size.
705 Actor mHeightBox; //< Background horizontal stripe to show requested image height.
706 Actor mWidthBox; //< Background vertical stripe to show requested image width.
707 Toolkit::PushButton mFittingModeButton;
708 Toolkit::PushButton mSamplingModeButton;
709 Toolkit::Popup mPopup;
710 PinchGestureDetector mPinchDetector;
711 float mLastPinchScale;
712 Toolkit::PushButton mGrabCorner;
713 PanGestureDetector mPanGestureDetector;
714 ImageActor mImageActor;
715 ResourceImage mNextImage; //< Currently-loading image
716 Vector2 mImageStageScale;
718 FittingMode::Type mFittingMode;
719 SamplingMode::Type mSamplingMode;
722 void RunTest( Application& application )
724 ImageScalingAndFilteringController test( application );
726 application.MainLoop();
729 // Entry point for Linux & Tizen applications
730 int main( int argc, char **argv )
732 Application application = Application::New( &argc, &argv, DALI_DEMO_THEME_PATH );
734 RunTest( application );