examples/simple-bitmap-font-text-label/simple-text-label-example.cpp

   1 /*
   2  * Copyright (c) 2020 Samsung Electronics Co., Ltd.
   3  *
   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
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  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.
  15  *
  16  */
  17
  18 /**
  19  * @file simple-text-label-example.cpp
  20  * @brief Basic usage of SimpleTextLabel control
  21  */
  22
  23 // EXTERNAL INCLUDES
  24 #include <dali-toolkit/dali-toolkit.h>
  25
  26 #include <dali-toolkit/devel-api/text/bitmap-font.h>
  27 #include <dali/devel-api/text-abstraction/bitmap-font.h>
  28 #include <dali/devel-api/text-abstraction/font-client.h>
  29
  30 using namespace Dali;
  31 using namespace Dali::Toolkit;
  32
  33 /**
  34  * @brief The main class of the demo.
  35  */
  36 class SimpleTextLabelExample : public ConnectionTracker
  37 {
  38 public:
  39   SimpleTextLabelExample(Application& application)
  40   : mApplication(application)
  41   {
  42     // Connect to the Application's Init signal
  43     mApplication.InitSignal().Connect(this, &SimpleTextLabelExample::Create);
  44   }
  45
  46   ~SimpleTextLabelExample()
  47   {
  48     // Nothing to do here.
  49   }
  50
  51   /**
  52    * One-time setup in response to Application InitSignal.
  53    */
  54   void Create(Application& application)
  55   {
  56     Window window = application.GetWindow();
  57
  58     window.KeyEventSignal().Connect(this, &SimpleTextLabelExample::OnKeyEvent);
  59
  60     TextAbstraction::FontClient fontClient = TextAbstraction::FontClient::Get();
  61
  62     DevelText::BitmapFontDescription fontDescription;
  63     fontDescription.name               = "Digits";
  64     fontDescription.underlinePosition  = 0.f;
  65     fontDescription.underlineThickness = 0.f;
  66
  67     fontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0030.png", "0", 34.f, 0.f});
  68     fontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0031.png", "1", 34.f, 0.f});
  69     fontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0032.png", "2", 34.f, 0.f});
  70     fontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0033.png", "3", 34.f, 0.f});
  71     fontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0034.png", "4", 34.f, 0.f});
  72     fontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0035.png", "5", 34.f, 0.f});
  73     fontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0036.png", "6", 34.f, 0.f});
  74     fontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0037.png", "7", 34.f, 0.f});
  75     fontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0038.png", "8", 34.f, 0.f});
  76     fontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0039.png", "9", 34.f, 0.f});
  77     fontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u003a.png", ":", 34.f, 0.f});
  78
  79     DevelText::BitmapFontDescription colorFontDescription;
  80     colorFontDescription.name               = "DigitsColor";
  81     colorFontDescription.underlinePosition  = 0.f;
  82     colorFontDescription.underlineThickness = 0.f;
  83     colorFontDescription.isColorFont        = true;
  84
  85     colorFontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0030_color.png", "0", 34.f, 0.f});
  86     colorFontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0031_color.png", "1", 34.f, 0.f});
  87     colorFontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0032_color.png", "2", 34.f, 0.f});
  88     colorFontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0033_color.png", "3", 34.f, 0.f});
  89     colorFontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0034_color.png", "4", 34.f, 0.f});
  90     colorFontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0035_color.png", "5", 34.f, 0.f});
  91     colorFontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0036_color.png", "6", 34.f, 0.f});
  92     colorFontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0037_color.png", "7", 34.f, 0.f});
  93     colorFontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0038_color.png", "8", 34.f, 0.f});
  94     colorFontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u0039_color.png", "9", 34.f, 0.f});
  95     colorFontDescription.glyphs.push_back({DEMO_IMAGE_DIR "u003a_color.png", ":", 34.f, 0.f});
  96
  97     TextAbstraction::BitmapFont bitmapFont;
  98     TextAbstraction::BitmapFont bitmapColorFont;
  99
 100     DevelText::CreateBitmapFont(fontDescription, bitmapFont);
 101     DevelText::CreateBitmapFont(colorFontDescription, bitmapColorFont);
 102
 103     fontClient.GetFontId(bitmapFont);
 104     fontClient.GetFontId(bitmapColorFont);
 105
 106     TextLabel label01 = TextLabel::New();
 107     label01.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
 108     label01.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
 109     label01.SetProperty(Actor::Property::SIZE, Vector2(400.f, 50.f));
 110     label01.SetProperty(Actor::Property::POSITION, Vector2(0.f, -100.f));
 111     label01.SetProperty(TextLabel::Property::MULTI_LINE, true);
 112
 113     label01.SetProperty(TextLabel::Property::ENABLE_MARKUP, true);
 114     label01.SetProperty(TextLabel::Property::TEXT, "012<color 'value'='green'>345</color>6789:");
 115     label01.SetProperty(TextLabel::Property::TEXT_COLOR, Color::RED);
 116     label01.SetProperty(TextLabel::Property::FONT_FAMILY, "Digits");
 117
 118     label01.SetBackgroundColor(Color::BLACK);
 119
 120     window.Add(label01);
 121
 122     TextLabel label02 = TextLabel::New();
 123     label02.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
 124     label02.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
 125     label02.SetProperty(Actor::Property::SIZE, Vector2(400.f, 50.f));
 126     label02.SetProperty(Actor::Property::POSITION, Vector2(0.f, -50.f));
 127     label02.SetProperty(TextLabel::Property::MULTI_LINE, true);
 128
 129     label02.SetProperty(TextLabel::Property::TEXT, "0123456789:");
 130     label02.SetProperty(TextLabel::Property::TEXT_COLOR, Color::WHITE);
 131     label02.SetProperty(TextLabel::Property::FONT_FAMILY, "DigitsColor");
 132
 133     label02.SetBackgroundColor(Color::BLACK);
 134
 135     window.Add(label02);
 136
 137     TextLabel label03 = TextLabel::New();
 138     label03.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
 139     label03.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
 140     label03.SetProperty(Actor::Property::SIZE, Vector2(400.f, 50.f));
 141     label03.SetProperty(Actor::Property::POSITION, Vector2(0.f, 0.f));
 142     label03.SetProperty(TextLabel::Property::MULTI_LINE, true);
 143
 144     label03.SetProperty(TextLabel::Property::TEXT, "0123456789:");
 145     label03.SetProperty(TextLabel::Property::FONT_FAMILY, "Digits");
 146
 147     label03.SetBackgroundColor(Color::WHITE);
 148
 149     window.Add(label03);
 150
 151     TextLabel label04 = TextLabel::New();
 152     label04.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
 153     label04.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
 154     label04.SetProperty(Actor::Property::SIZE, Vector2(400.f, 50.f));
 155     label04.SetProperty(Actor::Property::POSITION, Vector2(0.f, 50.f));
 156     label04.SetProperty(TextLabel::Property::MULTI_LINE, true);
 157
 158     label04.SetProperty(TextLabel::Property::TEXT, "0123456789:");
 159     label04.SetProperty(TextLabel::Property::FONT_FAMILY, "Digits");
 160     label04.SetProperty(TextLabel::Property::TEXT_COLOR, Color::WHITE);
 161
 162     label04.SetBackgroundColor(Color::BLACK);
 163
 164     window.Add(label04);
 165   }
 166
 167   /**
 168    * Main key event handler
 169    */
 170   void OnKeyEvent(const KeyEvent& event)
 171   {
 172     if(event.GetState() == KeyEvent::DOWN)
 173     {
 174       if(IsKey(event, DALI_KEY_ESCAPE) || IsKey(event, DALI_KEY_BACK))
 175       {
 176         mApplication.Quit();
 177       }
 178     }
 179   }
 180
 181 private:
 182   Application& mApplication;
 183 };
 184
 185 void RunTest(Application& application)
 186 {
 187   SimpleTextLabelExample test(application);
 188
 189   application.MainLoop();
 190 }
 191
 192 /** Entry point for Linux & Tizen applications */
 193 int DALI_EXPORT_API main(int argc, char** argv)
 194 {
 195   Application application = Application::New(&argc, &argv);
 196
 197   RunTest(application);
 198
 199   return 0;
 200 }