text: // DOM-IGNORE-BEGIN
  /*******************************************************************************
  * Copyright (C) 2020 Microchip Technology Inc. and its subsidiaries.
  *
  * Subject to your compliance with these terms, you may use Microchip software
  * and any derivatives exclusively with Microchip products. It is your
  * responsibility to comply with third party license terms applicable to your
  * use of third party software (including open source software) that may
  * accompany Microchip software.
  *
  * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, WHETHER
  * EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, INCLUDING ANY IMPLIED
  * WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A
  * PARTICULAR PURPOSE.
  *
  * IN NO EVENT WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE,
  * INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND
  * WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS
  * BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE
  * FULLEST EXTENT ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN
  * ANY WAY RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
  * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
  *******************************************************************************/
  // DOM-IGNORE-END
  
  
  #include "gfx/legato/widget/radiobutton/legato_widget_radiobutton.h"
  
  #if LE_RADIOBUTTON_WIDGET_ENABLED == 1
  
  #include "gfx/legato/common/legato_utils.h"
  #include "gfx/legato/core/legato_state.h"
  #include "gfx/legato/image/legato_image.h"
  #include "gfx/legato/renderer/legato_renderer.h"
  #include "gfx/legato/string/legato_string.h"
  #include "gfx/legato/widget/legato_widget.h"
  #include "gfx/legato/widget/legato_widget_skin_classic_common.h"
  
  #define MIN_CIRCLE_SIZE       15
  #define MIN_CIRCLE_SIZE_HALF  6
  #define THICKNESS_DIV         9
  
  enum
  {
      NOT_STARTED = LE_WIDGET_DRAW_STATE_READY,
      DONE = LE_WIDGET_DRAW_STATE_DONE,
      DRAW_BACKGROUND,
      DRAW_IMAGE,
  #if LE_STREAMING_ENABLED == 1
      WAIT_IMAGE,
  #endif
      DRAW_STRING,
  #if LE_STREAMING_ENABLED == 1
      WAIT_STRING,
  #endif
      DRAW_BORDER,
  };
  
  static struct
  {
      uint32_t alpha;
  } paintState;
  
  void _leRadioButtonWidget_GetImageRect(const leRadioButtonWidget* btn,
  									   leRect* imgRect,
  									   leRect* imgSrcRect)
  {
      leRect textRect;
      leRect bounds = btn->fn->localRect(btn);
      
      imgRect->x = 0;
      imgRect->y = 0;
      
      if(btn->string != NULL)
      {
          btn->string->fn->getRect(btn->string, &textRect);
      }
      else
      {
          textRect = leRect_Zero;
      }
      
      // calculate image dimensions
      if(btn->selected == LE_TRUE)
      {
          if(btn->selectedImage != NULL)
          {
              imgRect->width = btn->selectedImage->buffer.size.width;
              imgRect->height = btn->selectedImage->buffer.size.height;
          }
          else
          {
              imgRect->width = btn->circleButtonSize;
              imgRect->height = btn->circleButtonSize;
          }
      }
      else
      {
          if(btn->unselectedImage != NULL)
          {
              imgRect->width = btn->unselectedImage->buffer.size.width;
              imgRect->height = btn->unselectedImage->buffer.size.height;
          }
          else
          {
              imgRect->width = btn->circleButtonSize;
              imgRect->height = btn->circleButtonSize;
          }
      }
  
  	*imgSrcRect = *imgRect;
      
      leUtils_ArrangeRectangle(imgRect,
                               textRect,
                               bounds,
                               btn->widget.style.halign,
                               btn->widget.style.valign,
                               btn->imagePosition,
                               btn->widget.margin.left,
                               btn->widget.margin.top,
                               btn->widget.margin.right,
                               btn->widget.margin.bottom,
                               btn->imageMargin);
  
  	*imgRect = leRectClipAdj(imgRect, &bounds, imgSrcRect);
  
  	// move the rect to layer space
  	leUtils_RectToScreenSpace((leWidget*)btn, imgRect);
  }
  
  void _leRadioButtonWidget_GetTextRect(leRadioButtonWidget* btn,
  								      leRect* textRect,
  								      leRect* drawRect)
  {
      leRect bounds;
      
      leRect imgRect = {0};
      
      bounds = btn->fn->localRect(btn);
      
      if(btn->string != NULL)
      {
          btn->string->fn->getRect(btn->string, textRect);
      }
      else
      {
          *textRect = leRect_Zero;
      }
      
      // calculate image dimensions
      if(btn->selected == LE_TRUE)
      {
          if(btn->selectedImage != NULL)
          {
              imgRect.width = btn->selectedImage->buffer.size.width;
              imgRect.height = btn->selectedImage->buffer.size.height;
          }
          else
          {
              imgRect.width = btn->circleButtonSize;
              imgRect.height = btn->circleButtonSize;
          }
      }
      else
      {
          if(btn->unselectedImage != NULL)
          {
              imgRect.width = btn->unselectedImage->buffer.size.width;
              imgRect.height = btn->unselectedImage->buffer.size.height;
          }
          else
          {
              imgRect.width = btn->circleButtonSize;
              imgRect.height = btn->circleButtonSize;
          }
      }
      
      // arrange relative to image rect
      leUtils_ArrangeRectangleRelative(textRect,
                                       imgRect,
                                       bounds,
                                       btn->widget.style.halign,
                                       btn->widget.style.valign,
                                       btn->imagePosition,
                                       btn->widget.margin.left,
                                       btn->widget.margin.top,
                                       btn->widget.margin.right,
                                       btn->widget.margin.bottom,
                                       btn->imageMargin);
  
  	leRectClip(textRect, &bounds, drawRect);
  
  	// move the rects to layer space
  	leUtils_RectToScreenSpace((leWidget*)btn, textRect);
      leUtils_RectToScreenSpace((leWidget*)btn, drawRect);
  }
  
  static void drawBackground(leRadioButtonWidget* btn);
  static void drawImage(leRadioButtonWidget* btn);
  static void drawString(leRadioButtonWidget* btn);
  static void drawBorder(leRadioButtonWidget* btn);
  
  static void nextState(leRadioButtonWidget* btn)
  {
      switch(btn->widget.status.drawState)
      {
          case NOT_STARTED:
          {
              paintState.alpha = 255;
  
  #if LE_ALPHA_BLENDING_ENABLED == 1
              if(btn->fn->getCumulativeAlphaEnabled(btn) == LE_TRUE)
              {
                  paintState.alpha = btn->fn->getCumulativeAlphaAmount(btn);
              }
  #endif
  
              if(btn->widget.style.backgroundType != LE_WIDGET_BACKGROUND_NONE)
              {
                  btn->widget.status.drawState = DRAW_BACKGROUND;
                  btn->widget.drawFunc = (leWidget_DrawFunction_FnPtr)&drawBackground;
  
                  return;
              }
          }
          // fall through
          case DRAW_BACKGROUND:
          {
              btn->widget.status.drawState = DRAW_IMAGE;
              btn->widget.drawFunc = (leWidget_DrawFunction_FnPtr)&drawImage;
  
              return;
          }
          case DRAW_IMAGE:
          {            
              if(btn->string != NULL)
              {
                  btn->widget.status.drawState = DRAW_STRING;
                  btn->widget.drawFunc = (leWidget_DrawFunction_FnPtr)&drawString;
  
                  return;
              }
          }
          // fall through
          case DRAW_STRING:
          {
              if(btn->widget.style.borderType != LE_WIDGET_BORDER_NONE)
              {
                  btn->widget.drawFunc = (leWidget_DrawFunction_FnPtr)&drawBorder;
                  btn->widget.status.drawState = DRAW_BORDER;
                  
                  return;
              }
          }
          // fall through
          case DRAW_BORDER:
          {
              btn->widget.status.drawState = DONE;
              btn->widget.drawFunc = NULL;
          }
      }
  }
  
  static void drawCircle(leRadioButtonWidget* btn, leRect* rect, leBool filled)
  {
      int x = rect->x;
      int y = rect->y;
      leColor clr;
  
      // fill
      clr = leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_BACKGROUND),
  
      leRenderer_HorzLine(x + 4, y + 2, 7, clr, paintState.alpha);
      leRenderer_HorzLine(x + 3, y + 3, 8, clr, paintState.alpha);
      leRenderer_HorzLine(x + 2, y + 4, 10, clr, paintState.alpha);
      leRenderer_HorzLine(x + 2, y + 5, 10, clr, paintState.alpha);
      leRenderer_HorzLine(x + 2, y + 6, 10, clr, paintState.alpha);
      leRenderer_HorzLine(x + 2, y + 7, 10, clr, paintState.alpha);
      leRenderer_HorzLine(x + 3, y + 8, 8, clr, paintState.alpha);
      leRenderer_HorzLine(x + 4, y + 9, 7, clr, paintState.alpha);
      leRenderer_HorzLine(x + 2, y + 10, 8, clr, paintState.alpha);
      leRenderer_HorzLine(x + 4, y + 11, 4, clr, paintState.alpha);
      
      // upper outer ring
      clr = leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_SHADOW),
  
      leRenderer_HorzLine(x + 4, y + 0, 4, clr, paintState.alpha);
      leRenderer_HorzLine(x + 2, y + 1, 2, clr, paintState.alpha);
      leRenderer_HorzLine(x + 8, y + 1, 2, clr, paintState.alpha);
      leRenderer_HorzLine(x + 8, y + 1, 2, clr, paintState.alpha);
      leRenderer_VertLine(x + 1, y + 2, 2, clr, paintState.alpha);
      leRenderer_VertLine(x + 1, y + 8, 2, clr, paintState.alpha);
      leRenderer_VertLine(x + 1, y + 2, 2, clr, paintState.alpha);
      leRenderer_VertLine(x + 0, y + 4, 4, clr, paintState.alpha);
      
      // upper inner ring
      clr = leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_SHADOWDARK),
  
      leRenderer_HorzLine(x + 4, y + 1, 4, clr, paintState.alpha);
      leRenderer_HorzLine(x + 2, y + 2, 2, clr, paintState.alpha);
      leRenderer_HorzLine(x + 8, y + 2, 2, clr, paintState.alpha);
      leRenderer_BlendPixel_Safe(x + 2, y + 4, clr, paintState.alpha);
      leRenderer_VertLine(x + 1, y + 4, 4, clr, paintState.alpha);
      leRenderer_BlendPixel_Safe(x + 2, y + 9, clr, paintState.alpha);
      
      // lower inner ring
      clr = leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_HIGHLIGHT),
  
      leRenderer_BlendPixel_Safe(x + 9, y + 4, clr, paintState.alpha);
      leRenderer_VertLine(x + 10, y + 4, 4, clr, paintState.alpha);
      leRenderer_BlendPixel_Safe(x + 9, y + 9, clr, paintState.alpha);
      leRenderer_HorzLine(x + 2, y + 9, 2, clr, paintState.alpha);
      leRenderer_HorzLine(x + 8, y + 9, 2, clr, paintState.alpha);
      leRenderer_HorzLine(x + 4, y + 10, 4, clr, paintState.alpha);
      
      if(filled == LE_TRUE)
      {
          clr = leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_FOREGROUND),
  
          leRenderer_HorzLine(x + 5, y + 4, 2, clr, paintState.alpha);
          leRenderer_HorzLine(x + 4, y + 5, 4, clr, paintState.alpha);
          leRenderer_HorzLine(x + 4, y + 6, 4, clr, paintState.alpha);
          leRenderer_HorzLine(x + 5, y + 7, 2, clr, paintState.alpha);
      }
  }
  
  static void drawCircleArcs(leRadioButtonWidget* btn,
                             leRect* rect,
                             leBool filled)
  {
      uint32_t thickness = rect->width / 18;
  
      leRect arcRect;
  
      //uint32_t outRadius = (rect->width < rect->height) ? rect->width / 2 : rect->height / 2;
      //uint32_t thickness = (outRadius / THICKNESS_DIV > 1) ? outRadius / THICKNESS_DIV : 1;
  
      arcRect = *rect;
  
      leRenderer_CircleFill(&arcRect,
                            0,
                            0,
                            leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_BACKGROUND),
                            paintState.alpha);
  
      leRenderer_ArcFill(&arcRect,
                         45,
                         180,
                         rect->width / 8,
                         LE_FALSE,
                         leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_SHADOW),
                         LE_FALSE,
                         paintState.alpha);
              
      leRenderer_ArcFill(&arcRect,
                         225,
                         180,
                         rect->width / 8,
                         LE_FALSE,
                         leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_HIGHLIGHTLIGHT),
                         LE_FALSE,
                         paintState.alpha);
  
      // upper inner ring
      arcRect.x += thickness;
      arcRect.y += thickness;
      arcRect.width -= thickness * 2;
      arcRect.height -= thickness * 2;
  
      leRenderer_ArcFill(&arcRect,
                         45,
                         180,
                         thickness * 2,
                         LE_FALSE,
                         leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_SHADOWDARK),
                         LE_FALSE,
                         paintState.alpha);
  
      // lower inner ring
      leRenderer_ArcFill(&arcRect,
                         225,
                         180,
                         thickness * 2,
                         LE_FALSE,
                         leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_HIGHLIGHT),
                         LE_FALSE,
                         paintState.alpha);
  
      if(filled == LE_TRUE)
      {
          uint32_t dia = rect->width;
  
          arcRect.x = rect->x + (rect->width / 2);
          arcRect.y = rect->y + (rect->height / 2);
  
          arcRect.x -= dia / 8;
          arcRect.y -= dia / 8;
          arcRect.width = dia / 4;
          arcRect.height = dia / 4;
  
          leRenderer_ArcFill(&arcRect,
                             0,
                             360,
                             dia / 4,
                             LE_FALSE,
                             leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_FOREGROUND),
                             LE_FALSE,
                             paintState.alpha);       
      }
  }
  
  static void drawBackground(leRadioButtonWidget* btn)
  {
      leWidget_SkinClassic_DrawStandardBackground((leWidget*)btn,
                                                  paintState.alpha);
  
      nextState(btn);
  }
  
  #if LE_STREAMING_ENABLED == 1
  static void onImageStreamFinished(leStreamManager* dec)
  {
      leRadioButtonWidget* btn = (leRadioButtonWidget*)dec->userData;
  
      btn->widget.status.drawState = DRAW_IMAGE;
  
      nextState(btn);
  }
  #endif
  
  static void drawImage(leRadioButtonWidget* btn)
  {
      leRect imgRect, imgSrcRect;
      const leImage* img = NULL;
      
      _leRadioButtonWidget_GetImageRect(btn, &imgRect, &imgSrcRect);
      
      if(btn->selected == LE_FALSE)
      {
          img = btn->unselectedImage;
      }
      else
      {
          img = btn->selectedImage;
      }
      
      if(img == NULL)
      {
          if (btn->circleButtonSize < MIN_CIRCLE_SIZE)
          {
              drawCircle(btn, &imgRect, btn->selected);
          }
          else
          {
              drawCircleArcs(btn, &imgRect, btn->selected);
          }
      }
      else
      {
          leImage_Draw(img,
                       &imgSrcRect,
                       imgRect.x,
                       imgRect.y,
                       paintState.alpha);
  
  #if LE_STREAMING_ENABLED == 1
          if(leGetActiveStream() != NULL)
          {
              leGetActiveStream()->onDone = onImageStreamFinished;
              leGetActiveStream()->userData = btn;
  
              btn->widget.status.drawState = WAIT_IMAGE;
  
              return;
          }
  #endif
      }
      
      nextState(btn);
  }
  
  #if LE_STREAMING_ENABLED == 1
  static void onStringStreamFinished(leStreamManager* strm)
  {
      leRadioButtonWidget* btn = (leRadioButtonWidget*)strm->userData;
  
      btn->widget.status.drawState = DRAW_STRING;
  
      nextState(btn);
  }
  #endif
  
  static void drawString(leRadioButtonWidget* btn)
  {
      leRect textRect, drawRect;
      
      _leRadioButtonWidget_GetTextRect(btn, &textRect, &drawRect);
          
      btn->string->fn->_draw(btn->string,
                           textRect.x,
                           textRect.y,
                           LE_HALIGN_CENTER,
                           leScheme_GetRenderColor(btn->widget.scheme, LE_SCHM_TEXT),
                           paintState.alpha);
  
  #if LE_STREAMING_ENABLED == 1
      if(leGetActiveStream() != NULL)
      {
          leGetActiveStream()->onDone = onStringStreamFinished;
          leGetActiveStream()->userData = btn;
  
          btn->widget.status.drawState = WAIT_STRING;
  
          return;
      }
  #endif
      
      nextState(btn);
  }
  
  static void drawBorder(leRadioButtonWidget* btn)
  {
      if(btn->widget.style.borderType == LE_WIDGET_BORDER_LINE)
      {
          leWidget_SkinClassic_DrawStandardLineBorder((leWidget*)btn,
                                                      paintState.alpha);
      }
      else if(btn->widget.style.borderType == LE_WIDGET_BORDER_BEVEL)
      {
          leWidget_SkinClassic_DrawStandardRaisedBorder((leWidget*)btn,
                                                        paintState.alpha);
      }
      
      nextState(btn);
  }
  
  void _leRadioButtonWidget_Paint(leRadioButtonWidget* btn)
  {
      if(btn->widget.status.drawState == NOT_STARTED)
      {
          nextState(btn);
      }
  
  #if LE_STREAMING_ENABLED == 1
      if(btn->widget.status.drawState == WAIT_STRING ||
         btn->widget.status.drawState == WAIT_IMAGE)
      {
          return;
      }
  #endif
      
      while(btn->widget.status.drawState != DONE)
      {
          btn->widget.drawFunc((leWidget*)btn);
          
  #if LE_PREEMPTION_LEVEL == 2
          break;
  #endif
          
  #if LE_STREAMING_ENABLED == 1
          if(btn->widget.status.drawState == WAIT_STRING ||
             btn->widget.status.drawState == WAIT_IMAGE)
              break;
  #endif
      }
  }
  
  #endif // LE_RADIOBUTTON_WIDGET_ENABLED