Split fwl/core class pt I.

xfa/fwl/core/ifwl_widget.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef XFA_FWL_CORE_IFWL_WIDGET_H_
 #define XFA_FWL_CORE_IFWL_WIDGET_H_
 
 #include <memory>
 
 #include "core/fxcrt/fx_coordinates.h"
 #include "core/fxcrt/fx_system.h"
 #include "xfa/fwl/core/cfwl_event.h"
 #include "xfa/fwl/core/cfwl_themepart.h"
 #include "xfa/fwl/core/cfwl_widgetmgr.h"
-#include "xfa/fwl/core/cfwl_widgetproperties.h"
 #include "xfa/fwl/core/fwl_widgethit.h"
 #include "xfa/fwl/core/ifwl_widgetdelegate.h"
 #include "xfa/fwl/theme/cfwl_widgettp.h"
 
 // FWL contains two parallel inheritance hierarchies, which reference each
 // other via pointers as follows:
 //
 //                  m_pAssociate
 //                  <----------
 //      CFWL_Widget ----------> IFWL_Widget
@@ skipping 24 matching lines @@
   SpinButton,
   ToolTip
 };
 
 class CFWL_AppImp;
 class CFWL_MsgKey;
 class CFWL_Widget;
 class CFWL_WidgetProperties;
 class CFWL_WidgetMgr;
 class IFWL_App;
-class IFWL_DataProvider;
 class IFWL_ThemeProvider;
 class IFWL_Widget;
 enum class FWL_Type;
 
 class IFWL_Widget : public IFWL_WidgetDelegate {
  public:
+  class DataProvider {
+   public:
+    virtual void GetCaption(IFWL_Widget* pWidget,
+                            CFX_WideString& wsCaption) = 0;
+  };
+
   ~IFWL_Widget() override;
 
   virtual FWL_Type GetClassID() const = 0;
   virtual bool IsInstance(const CFX_WideStringC& wsClass) const;
   virtual void GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false);
   virtual void GetClientRect(CFX_RectF& rect);
   virtual void ModifyStylesEx(uint32_t dwStylesExAdded,
                               uint32_t dwStylesExRemoved);
   virtual void SetStates(uint32_t dwStates, bool bSet = true);
   virtual void Update();
   virtual FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy);
   virtual void DrawWidget(CFX_Graphics* pGraphics,
                           const CFX_Matrix* pMatrix = nullptr);
   virtual void SetThemeProvider(IFWL_ThemeProvider* pThemeProvider);
 
   // IFWL_WidgetDelegate.
   void OnProcessMessage(CFWL_Message* pMessage) override;
   void OnProcessEvent(CFWL_Event* pEvent) override;
   void OnDrawWidget(CFX_Graphics* pGraphics,
                     const CFX_Matrix* pMatrix = nullptr) override;
 
   void SetWidgetRect(const CFX_RectF& rect);
 
   void SetParent(IFWL_Widget* pParent);
 
   IFWL_Widget* GetOwner() { return m_pWidgetMgr->GetOwnerWidget(this); }
   IFWL_Widget* GetOuter() const { return m_pOuter; }
 
-  uint32_t GetStyles() const { return m_pProperties->m_dwStyles; }
+  uint32_t GetStyles() const;
   void ModifyStyles(uint32_t dwStylesAdded, uint32_t dwStylesRemoved);
-  uint32_t GetStylesEx() const { return m_pProperties->m_dwStyleExes; }
-  uint32_t GetStates() const { return m_pProperties->m_dwStates; }
+  uint32_t GetStylesEx() const;
+  uint32_t GetStates() const;
 
   void LockUpdate() { m_iLock++; }
   void UnlockUpdate() {
     if (IsLocked())
       m_iLock--;
   }
 
   void TransformTo(IFWL_Widget* pWidget, FX_FLOAT& fx, FX_FLOAT& fy);
   void GetMatrix(CFX_Matrix& matrix, bool bGlobal = false);
-  IFWL_ThemeProvider* GetThemeProvider() const {
-    return m_pProperties->m_pThemeProvider;
-  }
-
-  IFWL_DataProvider* GetDataProvider() const {
-    return m_pProperties->m_pDataProvider;
-  }
+  IFWL_ThemeProvider* GetThemeProvider() const;
+  IFWL_Widget::DataProvider* GetDataProvider() const;
 
   void SetDelegate(IFWL_WidgetDelegate* delegate) { m_pDelegate = delegate; }
   IFWL_WidgetDelegate* GetDelegate() {
     return m_pDelegate ? m_pDelegate : this;
   }
   const IFWL_WidgetDelegate* GetDelegate() const {
     return m_pDelegate ? m_pDelegate : this;
   }
 
   const IFWL_App* GetOwnerApp() const { return m_pOwnerApp; }
   uint32_t GetEventKey() const { return m_nEventKey; }
   void SetEventKey(uint32_t key) { m_nEventKey = key; }
 
   void* GetLayoutItem() const { return m_pLayoutItem; }
   void SetLayoutItem(void* pItem) { m_pLayoutItem = pItem; }
 
   void SetAssociateWidget(CFWL_Widget* pAssociate) {
     m_pAssociate = pAssociate;
   }
 
   void SetFocus(bool bFocus);
   void Repaint(const CFX_RectF* pRect = nullptr);
 
  protected:
   IFWL_Widget(const IFWL_App* app,
               std::unique_ptr<CFWL_WidgetProperties> properties,
               IFWL_Widget* pOuter);
 
-  bool IsEnabled() const {
-    return (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) == 0;
-  }
-  bool IsActive() const {
-    return (m_pProperties->m_dwStates & FWL_WGTSTATE_Deactivated) == 0;
-  }
+  bool IsEnabled() const;
+  bool IsActive() const;
   bool IsLocked() const { return m_iLock > 0; }
-  bool HasBorder() const {
-    return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Border);
-  }
-  bool HasEdge() const {
-    return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_EdgeMask);
-  }
+  bool HasBorder() const;
+  bool HasEdge() const;
   void GetEdgeRect(CFX_RectF& rtEdge);
   FX_FLOAT GetBorderSize(bool bCX = true);
   FX_FLOAT GetEdgeWidth();
   void GetRelativeRect(CFX_RectF& rect);
   void* GetThemeCapacity(CFWL_WidgetCapacity dwCapacity);
   IFWL_ThemeProvider* GetAvailableTheme();
   CFX_SizeF CalcTextSize(const CFX_WideString& wsText,
                          IFWL_ThemeProvider* pTheme,
                          bool bMultiLine = false,
                          int32_t iLineWidth = -1);
@@ skipping 24 matching lines @@
   const IFWL_App* const m_pOwnerApp;
   CFWL_WidgetMgr* const m_pWidgetMgr;
   std::unique_ptr<CFWL_WidgetProperties> m_pProperties;
   IFWL_Widget* m_pOuter;
   int32_t m_iLock;
 
  private:
   IFWL_Widget* GetParent() { return m_pWidgetMgr->GetParentWidget(this); }
   CFX_SizeF GetOffsetFromParent(IFWL_Widget* pParent);
 
-  bool IsVisible() const {
-    return (m_pProperties->m_dwStates & FWL_WGTSTATE_Invisible) == 0;
-  }
-  bool IsOverLapper() const {
-    return (m_pProperties->m_dwStyles & FWL_WGTSTYLE_WindowTypeMask) ==
-           FWL_WGTSTYLE_OverLapper;
-  }
-  bool IsPopup() const {
-    return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Popup);
-  }
-  bool IsChild() const {
-    return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Child);
-  }
-  bool IsOffscreen() const {
-    return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Offscreen);
-  }
+  bool IsVisible() const;
+  bool IsOverLapper() const;
+  bool IsPopup() const;
+  bool IsChild() const;
+  bool IsOffscreen() const;
   IFWL_Widget* GetRootOuter();
   bool GetPopupPosMenu(FX_FLOAT fMinHeight,
                        FX_FLOAT fMaxHeight,
                        const CFX_RectF& rtAnchor,
                        CFX_RectF& rtPopup);
   bool GetPopupPosComboBox(FX_FLOAT fMinHeight,
                            FX_FLOAT fMaxHeight,
                            const CFX_RectF& rtAnchor,
                            CFX_RectF& rtPopup);
   bool GetPopupPosGeneral(FX_FLOAT fMinHeight,
                           FX_FLOAT fMaxHeight,
                           const CFX_RectF& rtAnchor,
                           CFX_RectF& rtPopup);
   bool GetScreenSize(FX_FLOAT& fx, FX_FLOAT& fy);
   void DrawBackground(CFX_Graphics* pGraphics,
                       CFWL_Part iPartBk,
                       IFWL_ThemeProvider* pTheme,
                       const CFX_Matrix* pMatrix = nullptr);
   void NotifyDriver();
   bool IsParent(IFWL_Widget* pParent);
 
   void* m_pLayoutItem;
   CFWL_Widget* m_pAssociate;
   uint32_t m_nEventKey;
   IFWL_WidgetDelegate* m_pDelegate;  // Not owned.
 };
 
 #endif  // XFA_FWL_CORE_IFWL_WIDGET_H_