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 );
214 mDesiredBox.SetSortModifier(4.f);
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 );
220 mHeightBox.SetSortModifier(3.f);
222 mWidthBox.SetSize( (stage.GetSize() * mImageStageScale).width, stage.GetSize().height );
223 mWidthBox.SetParentOrigin( ParentOrigin::CENTER );
224 mWidthBox.SetAnchorPoint( AnchorPoint::CENTER );
225 mWidthBox.SetPosition( 0, 0, -1 );
226 mWidthBox.SetSortModifier(2.f);
228 // Make a grab-handle for resizing the image:
229 mGrabCorner = Toolkit::PushButton::New();
230 mGrabCorner.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::WIDTH );
231 mGrabCorner.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
232 mGrabCorner.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
233 mGrabCorner.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
234 mGrabCorner.SetDisabledImage( Dali::ResourceImage::New( PUSHBUTTON_DISABLED_IMAGE ) );
235 mGrabCorner.SetName( "GrabCorner" );
236 mGrabCorner.SetAnchorPoint( AnchorPoint::BOTTOM_RIGHT );
237 mGrabCorner.SetParentOrigin( ParentOrigin::BOTTOM_RIGHT );
238 mGrabCorner.SetSize( Vector2( stage.GetSize().width*0.08f, stage.GetSize().width*0.08f ) );
239 mGrabCorner.SetOpacity( 0.6f );
241 Layer grabCornerLayer = Layer::New();
242 grabCornerLayer.SetAnchorPoint( AnchorPoint::BOTTOM_RIGHT );
243 grabCornerLayer.SetParentOrigin( ParentOrigin::BOTTOM_RIGHT );
245 grabCornerLayer.Add( mGrabCorner );
246 mDesiredBox.Add( grabCornerLayer );
247 mPanGestureDetector = PanGestureDetector::New();
248 mPanGestureDetector.Attach( mGrabCorner );
249 mPanGestureDetector.DetectedSignal().Connect( this, &ImageScalingAndFilteringController::OnPan );
251 // Initialize the actor
252 mImageActor = ImageActor::New();
254 // Reposition the actor
255 mImageActor.SetParentOrigin( ParentOrigin::CENTER );
256 mImageActor.SetAnchorPoint( AnchorPoint::CENTER );
257 mImageActor.SetSortModifier(5.f);
259 // Display the actor on the stage
260 stage.Add( mImageActor );
262 mImageActor.SetSize( stage.GetSize() * mImageStageScale );
264 // Setup the pinch detector for scaling the desired image load dimensions:
265 mPinchDetector = PinchGestureDetector::New();
266 mPinchDetector.Attach( mImageActor );
267 mPinchDetector.DetectedSignal().Connect( this, &ImageScalingAndFilteringController::OnPinch );
269 // Tie-in input event handlers:
270 stage.KeyEventSignal().Connect( this, &ImageScalingAndFilteringController::OnKeyEvent );
278 * Create the GUI controls which float above the scene
280 void CreateControls()
282 Stage stage = Stage::GetCurrent();
284 Dali::Layer controlsLayer = Dali::Layer::New();
285 controlsLayer.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
286 controlsLayer.SetSizeModeFactor( Vector3( 1.0f, 1.0f, 1.0f ) );
287 controlsLayer.SetAnchorPoint( AnchorPoint::TOP_LEFT);
288 controlsLayer.SetParentOrigin( ParentOrigin::TOP_LEFT);
289 stage.Add( controlsLayer );
291 // Back and next image buttons in corners of stage:
292 unsigned int playWidth = std::min( stage.GetSize().x * (1 / 5.0f), 58.0f );
293 Image playImage = ResourceImage::New( DALI_ICON_PLAY, ImageDimensions( playWidth, playWidth ), FittingMode::SHRINK_TO_FIT, SamplingMode::BOX_THEN_LINEAR );
294 Actor imagePrevious = ImageActor::New( playImage );
296 // Last image button:
297 imagePrevious.SetAnchorPoint( AnchorPoint::TOP_LEFT );
298 imagePrevious.RotateBy( Radian(3.14159265358979323846f), Vector3( 0, 1.0f, 0 ) );
299 imagePrevious.SetY( playWidth * 0.5f );
300 imagePrevious.SetX( playWidth + playWidth * 0.5f );
301 imagePrevious.SetOpacity( 0.6f );
302 controlsLayer.Add( imagePrevious );
303 imagePrevious.SetName( PREVIOUS_BUTTON_ID );
304 imagePrevious.TouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnControlTouched );
306 // Next image button:
307 Actor imageNext = ImageActor::New( playImage );
308 imageNext.SetAnchorPoint( AnchorPoint::TOP_RIGHT );
309 imageNext.SetY( playWidth * 0.5f );
310 imageNext.SetX( stage.GetSize().x - playWidth * 0.5f );
311 imageNext.SetOpacity( 0.6f );
312 controlsLayer.Add( imageNext );
313 imageNext.SetName( NEXT_BUTTON_ID );
314 imageNext.TouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnControlTouched );
316 // Buttons to popup selectors for fitting and sampling modes:
318 // Wrapper table to hold two buttons side by side:
319 Toolkit::TableView modesGroupBackground = Toolkit::TableView::New( 1, 2 );
320 modesGroupBackground.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
321 modesGroupBackground.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
322 modesGroupBackground.SetBackgroundColor( BACKGROUND_COLOUR );
323 modesGroupBackground.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE ) );
324 modesGroupBackground.SetFitHeight( 0 );
326 modesGroupBackground.SetAnchorPoint( AnchorPoint::BOTTOM_LEFT );
327 modesGroupBackground.SetParentOrigin( ParentOrigin::BOTTOM_LEFT );
328 modesGroupBackground.SetPosition( 0.0f, 0.0f );
330 controlsLayer.Add( modesGroupBackground );
333 // Vertical table to hold label and button:
334 Toolkit::TableView fittingModeGroup = Toolkit::TableView::New( 2, 1 );
335 fittingModeGroup.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
336 fittingModeGroup.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
337 fittingModeGroup.SetBackgroundColor( BACKGROUND_COLOUR );
338 fittingModeGroup.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE * 0.5f ) );
339 fittingModeGroup.SetFitHeight( 0 );
340 fittingModeGroup.SetFitHeight( 1 );
342 TextLabel label = TextLabel::New( "Image fitting mode:" );
343 label.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_LABEL_TEXT );
344 fittingModeGroup.Add( label );
346 Toolkit::PushButton button = CreateButton( FITTING_BUTTON_ID, StringFromScalingMode( mFittingMode ) );
347 button.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
348 fittingModeGroup.Add( button );
349 mFittingModeButton = button;
351 modesGroupBackground.Add( fittingModeGroup );
355 // Vertical table to hold label and button:
356 Toolkit::TableView samplingModeGroup = Toolkit::TableView::New( 2, 1 );
357 samplingModeGroup.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
358 samplingModeGroup.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
359 samplingModeGroup.SetBackgroundColor( BACKGROUND_COLOUR );
360 samplingModeGroup.SetCellPadding( Size( MARGIN_SIZE * 0.5f, MARGIN_SIZE * 0.5f ) );
361 samplingModeGroup.SetFitHeight( 0 );
362 samplingModeGroup.SetFitHeight( 1 );
364 TextLabel label = TextLabel::New( "Image sampling mode:" );
365 label.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_LABEL_TEXT );
366 samplingModeGroup.Add( label );
368 Toolkit::PushButton button = CreateButton( SAMPLING_BUTTON_ID, StringFromFilterMode( mSamplingMode ) );
369 button.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
370 samplingModeGroup.Add( button );
371 mSamplingModeButton = button;
373 modesGroupBackground.Add( samplingModeGroup );
377 Toolkit::PushButton CreateButton( const char * id, const char * label )
379 Toolkit::PushButton button = Toolkit::PushButton::New();
380 button.SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
381 button.SetName( id );
382 button.SetLabel( label );
383 button.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
384 button.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
385 button.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
386 button.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
387 button.SetDisabledImage( Dali::ResourceImage::New( PUSHBUTTON_DISABLED_IMAGE ) );
388 button.ClickedSignal().Connect( this, &ImageScalingAndFilteringController::OnButtonClicked );
392 Toolkit::Popup CreatePopup()
394 Stage stage = Stage::GetCurrent();
395 const float POPUP_WIDTH_DP = stage.GetSize().width * 0.75f;
397 Toolkit::Popup popup = Toolkit::Popup::New();
398 popup.SetName( "POPUP" );
399 popup.SetParentOrigin( ParentOrigin::CENTER );
400 popup.SetAnchorPoint( AnchorPoint::CENTER );
401 popup.SetSize( POPUP_WIDTH_DP, 0.0f );
404 popup.OutsideTouchedSignal().Connect( this, &ImageScalingAndFilteringController::OnPopupOutsideTouched );
409 //void CreatePopupButton( Toolkit::Popup popup, const char* id )
410 Toolkit::PushButton CreatePopupButton( Actor parent, const char* id )
412 Toolkit::PushButton button = Toolkit::PushButton::New();
413 button.SetName( id );
414 button.SetLabel( id );
415 button.SetSelectedImage( Dali::ResourceImage::New( PUSHBUTTON_PRESS_IMAGE ) );
416 button.SetButtonImage( Dali::ResourceImage::New( PUSHBUTTON_BUTTON_IMAGE ) );
417 Toolkit::TextLabel textLabel = Toolkit::TextLabel::DownCast( button.GetLabel() );
418 textLabel.SetProperty( TextLabel::Property::POINT_SIZE, 12.0f );
420 button.SetAnchorPoint( AnchorPoint::TOP_LEFT );
421 button.SetParentOrigin( ParentOrigin::BOTTOM_LEFT );
422 button.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
423 button.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
425 button.ClickedSignal().Connect( this, &ImageScalingAndFilteringController::OnButtonClicked );
427 parent.Add( button );
431 bool OnButtonClicked( Toolkit::Button button )
433 if( button.GetName() == FITTING_BUTTON_ID )
435 mPopup = CreatePopup();
437 // Four-row table to hold buttons:
438 Toolkit::TableView fittingModes = Toolkit::TableView::New( 4, 1 );
439 fittingModes.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
440 fittingModes.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
441 fittingModes.SetBackgroundColor( BACKGROUND_COLOUR );
442 fittingModes.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE * 0.5 ) );
443 fittingModes.SetFitHeight( 0 );
444 fittingModes.SetFitHeight( 1 );
445 fittingModes.SetFitHeight( 2 );
446 fittingModes.SetFitHeight( 3 );
448 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::SCALE_TO_FILL ) );
449 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::SHRINK_TO_FIT ) );
450 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::FIT_WIDTH ) );
451 CreatePopupButton( fittingModes, StringFromScalingMode( FittingMode::FIT_HEIGHT ) );
453 mPopup.Add( fittingModes );
456 else if( button.GetName() == SAMPLING_BUTTON_ID )
458 mPopup = CreatePopup();
460 // Table to hold buttons for each sampling mode:
461 Toolkit::TableView samplingModes = Toolkit::TableView::New( 6, 1 );
462 samplingModes.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH );
463 samplingModes.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::HEIGHT );
464 samplingModes.SetBackgroundColor( BACKGROUND_COLOUR );
465 samplingModes.SetCellPadding( Size( MARGIN_SIZE, MARGIN_SIZE * 0.5 ) );
466 samplingModes.SetFitHeight( 0 );
467 samplingModes.SetFitHeight( 1 );
468 samplingModes.SetFitHeight( 2 );
469 samplingModes.SetFitHeight( 3 );
470 samplingModes.SetFitHeight( 4 );
471 samplingModes.SetFitHeight( 5 );
473 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::NEAREST ) );
474 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::LINEAR ) );
475 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX ) );
476 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX_THEN_NEAREST ) );
477 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::BOX_THEN_LINEAR ) );
478 CreatePopupButton( samplingModes, StringFromFilterMode( SamplingMode::NO_FILTER ) );
480 mPopup.Add( samplingModes );
483 else if( CheckFittingModeButton( button, FittingMode::SCALE_TO_FILL) ||
484 CheckFittingModeButton( button, FittingMode::SHRINK_TO_FIT) ||
485 CheckFittingModeButton( button, FittingMode::FIT_WIDTH) ||
486 CheckFittingModeButton( button, FittingMode::FIT_HEIGHT) )
489 else if( CheckSamplingModeButton( button, SamplingMode::NEAREST ) ||
490 CheckSamplingModeButton( button, SamplingMode::LINEAR ) ||
491 CheckSamplingModeButton( button, SamplingMode::BOX ) ||
492 CheckSamplingModeButton( button, SamplingMode::LINEAR ) ||
493 CheckSamplingModeButton( button, SamplingMode::BOX_THEN_NEAREST ) ||
494 CheckSamplingModeButton( button, SamplingMode::BOX_THEN_LINEAR ) ||
495 CheckSamplingModeButton( button, SamplingMode::NO_FILTER ) )
501 bool CheckFittingModeButton( Actor &button, FittingMode::Type mode )
503 const char * const modeName = StringFromScalingMode( mode );
504 if( button.GetName() == modeName )
507 mFittingModeButton.SetLabel( modeName );
508 mFittingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
517 bool CheckSamplingModeButton( Actor &button, SamplingMode::Type mode )
519 const char * const modeName = StringFromFilterMode( mode );
520 if( button.GetName() == modeName )
522 mSamplingMode = mode;
523 mSamplingModeButton.SetLabel( modeName );
524 mSamplingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
533 void OnPopupOutsideTouched()
542 void OnImageLoaded( ResourceImage image )
544 DALI_ASSERT_DEBUG( image == mNextImage );
545 mImageActor.SetImage( image );
546 mImageActor.SetSize( Size( image.GetWidth(), image.GetHeight() ) );
549 bool OnControlTouched( Actor actor, const TouchEvent& event )
551 if(event.GetPointCount() > 0)
553 const TouchPoint& point = event.GetPoint(0);
558 const std::string & name = actor.GetName();
559 if( name == NEXT_BUTTON_ID )
561 mCurrentPath = mCurrentPath + 1;
562 mCurrentPath = mCurrentPath < NUM_IMAGE_PATHS ? mCurrentPath : 0;
565 else if( name == PREVIOUS_BUTTON_ID )
567 mCurrentPath = mCurrentPath - 1;
568 mCurrentPath = mCurrentPath >= 0 ? mCurrentPath : NUM_IMAGE_PATHS - 1;
583 void OnPinch( Actor actor, const PinchGesture& pinch )
585 if( pinch.state == Gesture::Started )
587 mLastPinchScale = pinch.scale;
589 const float scale = pinch.scale;
591 if( scale != mLastPinchScale )
593 if ( scale < mLastPinchScale )
595 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
596 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
600 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
601 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
605 mLastPinchScale = scale;
608 void OnPan( Actor actor, const PanGesture& gesture )
610 Stage stage = Stage::GetCurrent();
611 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x + (gesture.displacement.x * 2.0f / stage.GetSize().width ) ) );
612 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y + (gesture.displacement.y * 2.0f / stage.GetSize().height ) ) );
616 void OnKeyEvent(const KeyEvent& event)
618 if( event.state == KeyEvent::Down )
620 if( IsKey( event, Dali::DALI_KEY_ESCAPE ) || IsKey( event, Dali::DALI_KEY_BACK ) )
622 if( mPopup && mPopup.IsVisible() )
632 else if ( event.keyPressedName == "Right" )
634 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
636 else if ( event.keyPressedName == "Left" )
638 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
640 else if ( event.keyPressedName == "Up" )
642 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
644 else if ( event.keyPressedName == "Down" )
646 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
648 else if ( event.keyPressedName == "o" )
650 mImageStageScale.x = std::max( 0.05f, mImageStageScale.x * 0.9f );
651 mImageStageScale.y = std::max( 0.05f, mImageStageScale.y * 0.9f );
653 else if ( event.keyPressedName == "p" )
655 mImageStageScale.x = std::max( 0.05f, std::min( 1.0f, mImageStageScale.x * 1.1f ) );
656 mImageStageScale.y = std::max( 0.05f, std::min( 1.0f, mImageStageScale.y * 1.1f ) );
658 else if ( event.keyPressedName == "n" )
660 mCurrentPath = mCurrentPath + 1;
661 mCurrentPath = mCurrentPath < NUM_IMAGE_PATHS ? mCurrentPath : 0;
663 else if ( event.keyPressedName == "b" )
665 mCurrentPath = mCurrentPath - 1;
666 mCurrentPath = mCurrentPath >= 0 ? mCurrentPath : NUM_IMAGE_PATHS - 1;
668 // Cycle filter and scaling modes:
669 else if ( event.keyPressedName == "f" )
671 mSamplingMode = NextFilterMode( mSamplingMode );
672 mSamplingModeButton.SetLabel( StringFromFilterMode( mSamplingMode ) );
673 mSamplingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
675 // Cycle filter and scaling modes:
676 else if ( event.keyPressedName == "s" )
678 mFittingMode = NextScalingMode( mFittingMode );
679 mFittingModeButton.SetLabel( StringFromScalingMode( mFittingMode ) );
680 mFittingModeButton.GetLabel().SetProperty( Toolkit::Control::Property::STYLE_NAME, STYLE_BUTTON_TEXT );
694 const char * const path = IMAGE_PATHS[mCurrentPath];
696 Stage stage = Stage::GetCurrent();
697 Size imageSize = stage.GetSize() * mImageStageScale;
698 const ImageDimensions imageSizeInt = ImageDimensions::FromFloatArray( &imageSize.x );
700 ResourceImage image = ResourceImage::New( path, imageSizeInt, mFittingMode, mSamplingMode );
701 image.LoadingFinishedSignal().Connect( this, &ImageScalingAndFilteringController::OnImageLoaded );
705 mDesiredBox.SetSize( stage.GetSize() * mImageStageScale );
706 mHeightBox.SetSize( stage.GetSize().width, (stage.GetSize() * mImageStageScale).height );
707 mWidthBox.SetSize( (stage.GetSize() * mImageStageScale).width, stage.GetSize().height );
711 Application& mApplication;
712 ImageActor mDesiredBox; //< Background rectangle to show requested image size.
713 ImageActor mHeightBox; //< Background horizontal stripe to show requested image height.
714 ImageActor mWidthBox; //< Background vertical stripe to show requested image width.
715 Toolkit::PushButton mFittingModeButton;
716 Toolkit::PushButton mSamplingModeButton;
717 Toolkit::Popup mPopup;
718 PinchGestureDetector mPinchDetector;
719 float mLastPinchScale;
720 Toolkit::PushButton mGrabCorner;
721 PanGestureDetector mPanGestureDetector;
722 ImageActor mImageActor;
723 ResourceImage mNextImage; //< Currently-loading image
724 Vector2 mImageStageScale;
726 FittingMode::Type mFittingMode;
727 SamplingMode::Type mSamplingMode;
730 void RunTest( Application& application )
732 ImageScalingAndFilteringController test( application );
734 application.MainLoop();
737 // Entry point for Linux & Tizen applications
738 int main( int argc, char **argv )
740 Application application = Application::New( &argc, &argv, DALI_DEMO_THEME_PATH );
742 RunTest( application );