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Diffstat (limited to 'xfa/fwl/cfwl_widget.h')
| -rw-r--r-- | xfa/fwl/cfwl_widget.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/xfa/fwl/cfwl_widget.h b/xfa/fwl/cfwl_widget.h new file mode 100644 index 0000000000..53839a761b --- /dev/null +++ b/xfa/fwl/cfwl_widget.h @@ -0,0 +1,196 @@ +// 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_CFWL_WIDGET_H_ +#define XFA_FWL_CFWL_WIDGET_H_ +#include <memory> + +#include "core/fxcrt/fx_coordinates.h" +#include "core/fxcrt/fx_system.h" +#include "xfa/fwl/cfwl_event.h" +#include "xfa/fwl/cfwl_themepart.h" +#include "xfa/fwl/cfwl_widgetmgr.h" +#include "xfa/fwl/fwl_widgethit.h" +#include "xfa/fwl/ifwl_widgetdelegate.h" +#include "xfa/fwl/theme/cfwl_widgettp.h" + +enum class FWL_Type { + Unknown = 0, + + Barcode, + Caret, + CheckBox, + ComboBox, + DateTimePicker, + Edit, + Form, + FormProxy, + ListBox, + MonthCalendar, + PictureBox, + PushButton, + ScrollBar, + SpinButton, + ToolTip +}; + +class CFWL_App; +class CFWL_AppImp; +class CFWL_MessageKey; +class CFWL_Widget; +class CFWL_WidgetMgr; +class CFWL_WidgetProperties; +class IFWL_ThemeProvider; + +class CFWL_Widget : public IFWL_WidgetDelegate { + public: + ~CFWL_Widget() override; + + virtual FWL_Type GetClassID() const = 0; + virtual bool IsInstance(const CFX_WideStringC& wsClass) const; + virtual CFX_RectF GetAutosizedWidgetRect(); + virtual CFX_RectF GetWidgetRect(); + virtual void GetClientRect(CFX_RectF& rect); + virtual void ModifyStylesEx(uint32_t dwStylesExAdded, + uint32_t dwStylesExRemoved); + virtual void SetStates(uint32_t dwStates); + virtual void RemoveStates(uint32_t dwStates); + virtual void Update() = 0; + virtual FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy); + virtual void DrawWidget(CFX_Graphics* pGraphics, + const CFX_Matrix* pMatrix) = 0; + 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) override; + + void InflateWidgetRect(CFX_RectF& rect); + void SetWidgetRect(const CFX_RectF& rect); + + void SetParent(CFWL_Widget* pParent); + + CFWL_Widget* GetOwner() { return m_pWidgetMgr->GetOwnerWidget(this); } + CFWL_Widget* GetOuter() const { return m_pOuter; } + + uint32_t GetStyles() const; + void ModifyStyles(uint32_t dwStylesAdded, uint32_t dwStylesRemoved); + uint32_t GetStylesEx() const; + uint32_t GetStates() const; + + void LockUpdate() { m_iLock++; } + void UnlockUpdate() { + if (IsLocked()) + m_iLock--; + } + + void TransformTo(CFWL_Widget* pWidget, FX_FLOAT& fx, FX_FLOAT& fy); + void GetMatrix(CFX_Matrix& matrix, bool bGlobal); + IFWL_ThemeProvider* GetThemeProvider() 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 CFWL_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 SetFocus(bool bFocus); + void Repaint(const CFX_RectF* pRect); + + protected: + CFWL_Widget(const CFWL_App* app, + std::unique_ptr<CFWL_WidgetProperties> properties, + CFWL_Widget* pOuter); + + bool IsEnabled() const; + bool IsActive() const; + bool IsLocked() const { return m_iLock > 0; } + bool HasBorder() const; + bool HasEdge() const; + void GetEdgeRect(CFX_RectF& rtEdge); + FX_FLOAT GetBorderSize(bool bCX); + 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); + void CalcTextRect(const CFX_WideString& wsText, + IFWL_ThemeProvider* pTheme, + uint32_t dwTTOStyles, + int32_t iTTOAlign, + CFX_RectF& rect); + void SetGrab(bool bSet); + void GetPopupPos(FX_FLOAT fMinHeight, + FX_FLOAT fMaxHeight, + const CFX_RectF& rtAnchor, + CFX_RectF& rtPopup); + void RegisterEventTarget(CFWL_Widget* pEventSource); + void UnregisterEventTarget(); + void DispatchEvent(CFWL_Event* pEvent); + void DrawBorder(CFX_Graphics* pGraphics, + CFWL_Part iPartBorder, + IFWL_ThemeProvider* pTheme, + const CFX_Matrix* pMatrix); + void DrawEdge(CFX_Graphics* pGraphics, + CFWL_Part iPartEdge, + IFWL_ThemeProvider* pTheme, + const CFX_Matrix* pMatrix); + + const CFWL_App* const m_pOwnerApp; + CFWL_WidgetMgr* const m_pWidgetMgr; + std::unique_ptr<CFWL_WidgetProperties> m_pProperties; + CFWL_Widget* m_pOuter; + int32_t m_iLock; + + private: + CFWL_Widget* GetParent() { return m_pWidgetMgr->GetParentWidget(this); } + CFX_SizeF GetOffsetFromParent(CFWL_Widget* pParent); + + bool IsVisible() const; + bool IsOverLapper() const; + bool IsPopup() const; + bool IsChild() const; + bool IsOffscreen() const; + CFWL_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); + void NotifyDriver(); + bool IsParent(CFWL_Widget* pParent); + + void* m_pLayoutItem; + uint32_t m_nEventKey; + IFWL_WidgetDelegate* m_pDelegate; // Not owned. +}; + +#endif // XFA_FWL_CFWL_WIDGET_H_ |