2 * Copyright (c) 2019 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.
19 * @file simple-text-editor-example.cpp
20 * @brief Very basic usage of TextEditor control
24 #include <dali-toolkit/dali-toolkit.h>
28 #include "shared/view.h"
31 using namespace Dali::Toolkit;
36 const char * const THEME_PATH( DEMO_STYLE_DIR "text-editor-example-theme.json" ); ///< The theme used for this example
37 const Vector4 BACKGROUND_COLOR( 0.04f, 0.345f, 0.392f, 1.0f ); ///< The background color.
38 const char* TOOLBAR_IMAGE = DEMO_IMAGE_DIR "top-bar.png"; ///< The tool-bar image.
39 const float TOOLBAR_BUTTON_PERCENTAGE = 0.1f; ///< The button's space width as a percentage of the toolbar's width.
40 const float TOOLBAR_TITLE_PERCENTAGE = 0.7f; ///< The title's width as a percentage of the toolbar's width.
41 const float TOOLBAR_HEIGHT_PERCENTAGE = 0.05f; ///< The toolbar's height as a percentage of the stage's height.
42 const float TOOLBAR_PADDING = 4.f; ///< The padding in pixels.
43 const float BUTTON_PERCENTAGE = 0.8f; ///< The button's height as a percentage of the space for the buttons in the toolbar.
44 const Vector3 TEXT_EDITOR_RELATIVE_SIZE( 1.f, 0.45f, 1.0f ); ///< The size of the text editor as a percentage of the stage's size.
45 const Vector4 TEXT_EDITOR_BACKGROUND_COLOR( 1.f, 1.f, 1.f, 0.15f ); ///< The background color of the text editor.
47 const Vector4 COLORS[] = { Color::RED,
55 const unsigned int NUMBER_OF_COLORS = sizeof( COLORS ) / sizeof( Vector4 );
57 } // Unnamed namespace
60 * @brief The main class of the demo.
62 class TextEditorExample : public ConnectionTracker
65 TextEditorExample( Application& application )
66 : mApplication( application )
68 // Connect to the Application's Init signal
69 mApplication.InitSignal().Connect( this, &TextEditorExample::Create );
74 // Nothing to do here.
78 * One-time setup in response to Application InitSignal.
80 void Create( Application& application )
82 Stage stage = Stage::GetCurrent();
84 // Respond to key events
85 stage.KeyEventSignal().Connect(this, &TextEditorExample::OnKeyEvent);
87 // Set a background color.
88 stage.SetBackgroundColor( BACKGROUND_COLOR );
91 const Vector2 stageSize = stage.GetSize();
93 // Creates a default view with a default tool bar.
94 // The view is added to the stage.
96 // Set the toolbar style
97 const float toolBarHeight = TOOLBAR_HEIGHT_PERCENTAGE * stageSize.height;
98 const DemoHelper::ViewStyle viewStyle( TOOLBAR_BUTTON_PERCENTAGE,
99 TOOLBAR_TITLE_PERCENTAGE,
103 Layer contents = DemoHelper::CreateView( mApplication,
111 // Create a label for the color selection button.
112 // The button will be a child of this, so as to be placed next to it.
113 TextLabel colorLabel = TextLabel::New( "Text Color: " );
114 colorLabel.SetResizePolicy( ResizePolicy::USE_NATURAL_SIZE, Dimension::WIDTH );
115 colorLabel.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::HEIGHT );
116 colorLabel.SetProperty( TextLabel::Property::VERTICAL_ALIGNMENT, "CENTER" );
118 // Create a container for the color button, to layout the drop-down list below it.
119 mColorContainer = Control::New();
120 mColorContainer.SetResizePolicy( ResizePolicy::DIMENSION_DEPENDENCY, Dimension::WIDTH );
121 mColorContainer.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::HEIGHT );
122 mColorContainer.SetSizeModeFactor( Vector3( 0.0f, BUTTON_PERCENTAGE, 0.0f ) );
124 // Place to right of parent.
125 mColorContainer.SetParentOrigin( ParentOrigin::CENTER_RIGHT );
126 mColorContainer.SetAnchorPoint( AnchorPoint::CENTER_LEFT );
127 colorLabel.Add( mColorContainer );
129 // Add border to highlight harder-to-see colors.
130 // We use a color rather than border visual as the container will always be behind the button.
131 Property::Map colorMap;
132 colorMap.Insert( Toolkit::Visual::Property::TYPE, Visual::COLOR);
133 colorMap.Insert( ColorVisual::Property::MIX_COLOR, Color::BLACK );
134 mColorContainer.SetProperty( Control::Property::BACKGROUND, colorMap );
136 // Create a 'select color' button.
137 mColorButtonOption = Toolkit::PushButton::New();
138 mColorButtonOption.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
139 mColorButtonOption.SetSizeModeFactor( Vector3( 0.9f, 0.9f, 0.0f ) ); // Smaller than container to show border.
140 mColorButtonOption.SetParentOrigin( ParentOrigin::CENTER );
141 mColorButtonOption.SetAnchorPoint( AnchorPoint::CENTER );
143 SetButtonColor( mColorButtonOption, Color::BLACK );
145 mColorButtonOption.ClickedSignal().Connect( this, &TextEditorExample::OnChangeColorButtonClicked );
146 mColorContainer.Add( mColorButtonOption );
148 //Add label to toolbar, which will also add the color button next to it.
149 mToolBar.AddControl( colorLabel, viewStyle.mToolBarButtonPercentage, Toolkit::Alignment::HorizontalLeft, DemoHelper::DEFAULT_MODE_SWITCH_PADDING );
151 // Create the text editor.
152 mEditor = TextEditor::New();
153 mEditor.SetParentOrigin( ParentOrigin::TOP_CENTER );
154 mEditor.SetAnchorPoint( AnchorPoint::TOP_CENTER );
155 mEditor.SetPosition( 0.f, toolBarHeight, 0.f );
156 mEditor.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
157 mEditor.SetSizeModeFactor( TEXT_EDITOR_RELATIVE_SIZE );
159 mEditor.SetBackgroundColor( TEXT_EDITOR_BACKGROUND_COLOR );
161 const Size boundingBoxSize( stageSize * TEXT_EDITOR_RELATIVE_SIZE.GetVectorXY() );
162 Rect<int> boundingBox( 0,
163 static_cast<int>( toolBarHeight ),
164 static_cast<int>( boundingBoxSize.width ),
165 static_cast<int>( boundingBoxSize.height - toolBarHeight ) );
167 mEditor.SetProperty( TextEditor::Property::DECORATION_BOUNDING_BOX, boundingBox );
168 mEditor.SetProperty( TextEditor::Property::TEXT_COLOR, Color::BLACK );
169 mEditor.SetProperty( TextEditor::Property::TEXT,
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180 "Síť ut apeirián laboramúš percipitur, sůas hařum ín éos?\n" );
182 mEditor.InputStyleChangedSignal().Connect( this, &TextEditorExample::OnTextInputStyleChanged );
184 contents.Add( mEditor );
185 StyleManager styleManager = StyleManager::Get();
186 styleManager.ApplyTheme( THEME_PATH );
189 void CreateButtonContainer()
191 mButtonContainer = Toolkit::TableView::New( NUMBER_OF_COLORS, 1u );
192 mButtonContainer.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
193 mButtonContainer.SetSizeModeFactor( Vector3( 1.0f, NUMBER_OF_COLORS, 1.0f ) );
195 // Place below color selection button.
196 mButtonContainer.SetParentOrigin( ParentOrigin::BOTTOM_CENTER );
197 mButtonContainer.SetAnchorPoint( AnchorPoint::TOP_CENTER );
198 mButtonContainer.SetPosition( 0.0f, 2.f * TOOLBAR_PADDING, 0.f );
199 mColorContainer.Add( mButtonContainer );
201 const Vector3 buttonPercentage( 1.f, 0.8f / static_cast<float>( NUMBER_OF_COLORS ), 1.f );
202 for( unsigned int index = 0u; index < NUMBER_OF_COLORS; ++index )
204 Toolkit::PushButton button = Toolkit::PushButton::New();
205 button.SetResizePolicy( ResizePolicy::SIZE_RELATIVE_TO_PARENT, Dimension::ALL_DIMENSIONS );
206 button.SetSizeModeFactor( buttonPercentage );
208 std::ostringstream s;
209 s << "color" << index;
210 button.SetName( s.str() );
212 SetButtonColor( button, COLORS[index] );
214 button.ClickedSignal().Connect( this, &TextEditorExample::OnColorButtonClicked );
216 mButtonContainer.Add( button );
220 void OnKeyEvent( const KeyEvent& event )
222 if( event.state == KeyEvent::Down )
224 if( IsKey( event, Dali::DALI_KEY_ESCAPE ) || IsKey( event, Dali::DALI_KEY_BACK ) )
226 // Exit application when click back or escape.
232 bool OnChangeColorButtonClicked( Button button )
234 if( !mButtonContainer )
236 CreateButtonContainer();
239 mButtonContainer.SetVisible( true );
240 mButtonContainer.SetSensitive( true );
244 bool OnColorButtonClicked( Button button )
246 const std::string& name = button.GetName();
249 if( "color" == name.substr( 0u, 5u ) )
251 const unsigned int index = strtoul( name.substr( 5u, 1u ).c_str(), NULL, 10u );
252 color = COLORS[index];
253 mEditor.SetProperty( TextEditor::Property::INPUT_COLOR, color );
256 SetButtonColor( mColorButtonOption, color );
258 mButtonContainer.SetVisible( false );
259 mButtonContainer.SetSensitive( false );
264 void OnTextInputStyleChanged( TextEditor editor, TextEditor::InputStyle::Mask mask )
266 if( TextEditor::InputStyle::NONE != static_cast<TextEditor::InputStyle::Mask>( mask & TextEditor::InputStyle::COLOR ) )
268 const Vector4 color = editor.GetProperty( TextEditor::Property::INPUT_COLOR ).Get<Vector4>();
269 SetButtonColor( mColorButtonOption, color );
275 void SetButtonColor( Button& button, const Vector4& color )
277 Property::Map colorVisualMap;
278 colorVisualMap.Add( Toolkit::Visual::Property::TYPE, Visual::COLOR )
279 .Add( ColorVisual::Property::MIX_COLOR, color );
281 button.SetProperty( Button::Property::UNSELECTED_BACKGROUND_VISUAL, colorVisualMap );
282 button.SetProperty( Button::Property::SELECTED_BACKGROUND_VISUAL, colorVisualMap );
287 Application& mApplication;
289 Toolkit::Control mView;
290 Toolkit::ToolBar mToolBar;
291 Toolkit::TextEditor mEditor;
292 Toolkit::Control mColorContainer;
293 Toolkit::PushButton mColorButtonOption;
294 Toolkit::TableView mButtonContainer;
297 int DALI_EXPORT_API main( int argc, char **argv )
299 // DALI_DEMO_THEME_PATH not passed to Application so TextEditor example uses default Toolkit style sheet.
300 Application application = Application::New( &argc, &argv );
301 TextEditorExample test( application );
302 application.MainLoop();