Merge "Example of animating around a pivot" into devel/master

Kimmo Hoikka · Gerrit Code Review
2 parents dcf3790b 374dbc8d
Showing 6 changed files with 171 additions and 0 deletions
com.samsung.dali-demo.xml
examples-reel/dali-examples-reel.cpp
examples/pivot/pivot-example.cpp
resources/po/en_GB.po
resources/po/en_US.po
shared/dali-demo-strings.h
@@ -194,4 +194,7 @@
 	<ui-application appid="clipping.example" exec="/usr/apps/com.samsung.dali-demo/bin/clipping.example" nodisplay="true" multiple="false" type="c++app" taskmanage="true">
 		<label>Clipping</label>
 	</ui-application>
+	<ui-application appid="pivot.example" exec="/usr/apps/com.samsung.dali-demo/bin/pivot.example" nodisplay="true" multiple="false" type="c++app" taskmanage="true">
+		<label>Clipping</label>
+	</ui-application>
 </manifest>
@@ -59,6 +59,7 @@ int DALI_EXPORT_API main(int argc, char **argv)
   demo.AddExample(Example("motion-stretch.example", DALI_DEMO_STR_TITLE_MOTION_STRETCH));
   demo.AddExample(Example("native-image-source.example", DALI_DEMO_STR_TITLE_NATIVE_IMAGE_SOURCE));
   demo.AddExample(Example("popup.example", DALI_DEMO_STR_TITLE_POPUP));
+  demo.AddExample(Example("pivot.example", DALI_DEMO_STR_TITLE_PIVOT));
   demo.AddExample(Example("primitive-shapes.example", DALI_DEMO_STR_TITLE_PRIMITIVE_SHAPES));
   demo.AddExample(Example("progress-bar.example", DALI_DEMO_STR_TITLE_PROGRESS_BAR));
   demo.AddExample(Example("rendering-line.example", DALI_DEMO_STR_TITLE_RENDERING_DRAW_LINE));
+/*
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <dali-toolkit/dali-toolkit.h>
+#include <dali/devel-api/actors/actor-devel.h>
+
+#include <iostream>
+
+using namespace Dali;
+using namespace Dali::Toolkit;
+
+namespace
+{
+const int TABLE_VIEW_ROWS = 5;
+const int TABLE_VIEW_COLUMNS = 3;
+const Vector3 TABLE_VIEW_SIZE_MODE_FACTOR( 0.6f, 0.6f, 1.0f );
+
+const Quaternion ANIMATION_ROTATION( Degree( 360.0f), Vector3::ZAXIS );
+const AlphaFunction::BuiltinFunction ROTATION_ANIMATION_ALPHA_FUNCTION( AlphaFunction::EASE_IN_OUT );
+const TimePeriod ROTATION_ANIMATION_TIME_PERIOD( 0.0f, 0.5f );
+
+const Vector3 ANIMATION_SCALE( 2.0f, 2.0f, 1.0f );
+const AlphaFunction::BuiltinFunction SCALE_ANIMATION_ALPHA_FUNCTION( AlphaFunction::SIN );
+const TimePeriod SCALE_ANIMATION_TIME_PERIOD( 0.15f, 0.85f );
+} // unnamed namespace
+
+/**
+ * @brief Demonstrates how to animate a control in a layout-container using the anchor point as the pivot.
+ *
+ * Positions of the controls in the layout-container will be set using the top-left of the control.
+ */
+class PivotController : public ConnectionTracker
+{
+public:
+
+  /**
+   * @brief Constructor.
+   * @param[in] application Reference to the application instance.
+   */
+  PivotController( Application& application )
+  : mApplication( application )
+  {
+    mApplication.InitSignal().Connect( this, &PivotController::Create );
+  }
+
+private:
+
+  /**
+   * @brief The Init signal is received once (only) during the Application lifetime.
+   */
+  void Create( Application& /* application */ )
+  {
+    // Get a handle to the stage
+    Stage stage = Stage::GetCurrent();
+    stage.SetBackgroundColor( Color::WHITE );
+    stage.KeyEventSignal().Connect( this, &PivotController::OnKeyEvent );
+
+    // Create a table view.
+    TableView tableView = TableView::New( TABLE_VIEW_ROWS, TABLE_VIEW_COLUMNS );
+    tableView.SetAnchorPoint( AnchorPoint::CENTER );
+    tableView.SetParentOrigin( ParentOrigin::CENTER );
+    tableView.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
+    tableView.SetSizeModeFactor( TABLE_VIEW_SIZE_MODE_FACTOR );
+    stage.Add( tableView );
+
+    // Create a tap detector - we are going to rotate an actor round our anchor-point (pivot) when one of our controls is tapped.
+    mTapDetector = TapGestureDetector::New();
+    mTapDetector.DetectedSignal().Connect( this, &PivotController::OnTap );
+
+    Vector3 anchorPoint( AnchorPoint::CENTER ); // This will be changed depending on the row and column.
+
+    // Add controls to the table-view - each control will have a random color.
+    for( int row = 0; row < TABLE_VIEW_ROWS; ++row )
+    {
+      anchorPoint.y = ( row % TABLE_VIEW_ROWS ) * ( 1.0f / ( TABLE_VIEW_ROWS - 1 ) ); // Calculate this row's y anchor-point.
+
+      for( int column = 0; column < TABLE_VIEW_COLUMNS; ++column )
+      {
+        anchorPoint.x = ( column % TABLE_VIEW_COLUMNS ) * ( 1.0f / ( TABLE_VIEW_COLUMNS - 1 ) ); // Calculate this column's x anchor-point.
+
+        // Create a control with a randomly chosen background color.
+        Control control = Control::New();
+        control.SetBackgroundColor( Vector4( Random::Range( 0.0f, 1.0f ), Random::Range( 0.0f, 1.0f ), Random::Range( 0.0f, 1.0f ), 1.0f ) );
+        control.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
+        control.SetProperty( DevelActor::Property::POSITION_USES_ANCHOR_POINT, false ); // Ensures the position always uses top-left for its calculations.
+        control.SetAnchorPoint( anchorPoint ); // This anchor-point is used for the rotation and the scale.
+
+        // Add to the table-view
+        tableView.AddChild( control, TableView::CellPosition( row, column ) );
+
+        // Attach each control to the tap-detector so we can start the animation around our anchor point.
+        mTapDetector.Attach( control );
+      }
+    }
+  }
+
+  /**
+   * @brief Called when a control is tapped.
+   *
+   * Here we will start an animation around our pivot.
+   */
+  void OnTap( Actor actor, const TapGesture& /* tap */ )
+  {
+    // Raise the actor to the top.
+    DevelActor::RaiseToTop( actor );
+
+    // Create the animation to rotate and scale our actor.
+    Animation animation = Animation::New( 1.0f );
+    animation.AnimateBy( Property( actor, Actor::Property::ORIENTATION ), ANIMATION_ROTATION, ROTATION_ANIMATION_ALPHA_FUNCTION, ROTATION_ANIMATION_TIME_PERIOD );
+    animation.AnimateTo( Property( actor, Actor::Property::SCALE ), ANIMATION_SCALE, SCALE_ANIMATION_ALPHA_FUNCTION, SCALE_ANIMATION_TIME_PERIOD );
+
+    // Play the animation.
+    animation.Play();
+  }
+
+  /**
+   * @brief Called when any key event is received
+   *
+   * Will use this to quit the application if Back or the Escape key is received
+   * @param[in] event The key event information
+   */
+  void OnKeyEvent( const KeyEvent& event )
+  {
+    if( event.state == KeyEvent::Down )
+    {
+      if ( IsKey( event, Dali::DALI_KEY_ESCAPE ) || IsKey( event, Dali::DALI_KEY_BACK ) )
+      {
+        mApplication.Quit();
+      }
+    }
+  }
+
+private:
+
+  Application&  mApplication; ///< Reference to the Application instance.
+  TapGestureDetector mTapDetector; ///< Used for animating the tapped control.
+};
+
+int DALI_EXPORT_API main( int argc, char **argv )
+{
+  Application application = Application::New( &argc, &argv );
+  PivotController test( application );
+  application.MainLoop();
+  return 0;
+}
@@ -94,6 +94,9 @@ msgstr &quot;Negotiate Size&quot;
 msgid "DALI_DEMO_STR_TITLE_POPUP"
 msgstr "Popup"
+msgid "DALI_DEMO_STR_TITLE_PIVOT"
+msgstr "Pivot"
+
 msgid "DALI_DEMO_STR_TITLE_PROGRESS_BAR"
 msgstr "Progress Bar"
@@ -94,6 +94,9 @@ msgstr &quot;Negotiate Size&quot;
 msgid "DALI_DEMO_STR_TITLE_POPUP"
 msgstr "Popup"
+msgid "DALI_DEMO_STR_TITLE_PIVOT"
+msgstr "Pivot"
+
 msgid "DALI_DEMO_STR_TITLE_PROGRESS_BAR"
 msgstr "Progress Bar"
@@ -65,6 +65,7 @@ extern &quot;C&quot;
 #define DALI_DEMO_STR_TITLE_NATIVE_IMAGE_SOURCE         dgettext(DALI_DEMO_DOMAIN_LOCAL, "DALI_DEMO_STR_TITLE_NATIVE_IMAGE_SOURCE")
 #define DALI_DEMO_STR_TITLE_NEGOTIATE_SIZE              dgettext(DALI_DEMO_DOMAIN_LOCAL, "DALI_DEMO_STR_TITLE_NEGOTIATE_SIZE")
 #define DALI_DEMO_STR_TITLE_POPUP                       dgettext(DALI_DEMO_DOMAIN_LOCAL, "DALI_DEMO_STR_TITLE_POPUP")
+#define DALI_DEMO_STR_TITLE_PIVOT                       dgettext(DALI_DEMO_DOMAIN_LOCAL, "DALI_DEMO_STR_TITLE_PIVOT")
 #define DALI_DEMO_STR_TITLE_PRIMITIVE_SHAPES            dgettext(DALI_DEMO_DOMAIN_LOCAL, "DALI_DEMO_STR_TITLE_PRIMITIVE_SHAPES")
 #define DALI_DEMO_STR_TITLE_PROGRESS_BAR                dgettext(DALI_DEMO_DOMAIN_LOCAL, "DALI_DEMO_STR_TITLE_PROGRESS_BAR")
 #define DALI_DEMO_STR_TITLE_RENDERING_DRAW_LINE         dgettext(DALI_DEMO_DOMAIN_LOCAL, "DALI_DEMO_STR_TITLE_RENDERING_DRAW_LINE")
@@ -123,6 +124,7 @@ extern &quot;C&quot;
 #define DALI_DEMO_STR_TITLE_NATIVE_IMAGE_SOURCE         "Native Image Source"
 #define DALI_DEMO_STR_TITLE_NEGOTIATE_SIZE              "Negotiate Size"
 #define DALI_DEMO_STR_TITLE_POPUP                       "Popup"
+#define DALI_DEMO_STR_TITLE_PIVOT                       "Pivot"
 #define DALI_DEMO_STR_TITLE_PRIMITIVE_SHAPES            "Primitive Shapes"
 #define DALI_DEMO_STR_TITLE_PROGRESS_BAR                "Progress Bar"
 #define DALI_DEMO_STR_TITLE_RENDERING_DRAW_LINE         "Draw Line"