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// 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 "core/fxcrt/unowned_ptr.h"
#include "xfa/fde/cfde_data.h"
#include "xfa/fwl/cfwl_event.h"
#include "xfa/fwl/cfwl_themepart.h"
#include "xfa/fwl/cfwl_widgetmgr.h"
#include "xfa/fwl/cfwl_widgetproperties.h"
#include "xfa/fwl/fwl_widgethit.h"
#include "xfa/fwl/ifwl_widgetdelegate.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 CXFA_FFWidget;
class IFWL_ThemeProvider;
class CFWL_Widget : public IFWL_WidgetDelegate {
public:
~CFWL_Widget() override;
virtual FWL_Type GetClassID() const = 0;
virtual bool IsInstance(const WideStringView& wsClass) const;
virtual CFX_RectF GetAutosizedWidgetRect();
virtual CFX_RectF GetWidgetRect();
virtual CFX_RectF GetClientRect();
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(const CFX_PointF& point);
virtual void DrawWidget(CXFA_Graphics* pGraphics,
const CFX_Matrix& matrix) = 0;
virtual void SetThemeProvider(IFWL_ThemeProvider* pThemeProvider);
// IFWL_WidgetDelegate.
void OnProcessMessage(CFWL_Message* pMessage) override;
void OnProcessEvent(CFWL_Event* pEvent) override;
void OnDrawWidget(CXFA_Graphics* pGraphics,
const CFX_Matrix& matrix) 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--;
}
CFX_PointF TransformTo(CFWL_Widget* pWidget, const CFX_PointF& point);
CFX_Matrix GetMatrix() const;
IFWL_ThemeProvider* GetThemeProvider() const {
return m_pProperties->m_pThemeProvider.Get();
}
void SetDelegate(IFWL_WidgetDelegate* delegate) { m_pDelegate = delegate; }
IFWL_WidgetDelegate* GetDelegate() {
return m_pDelegate ? m_pDelegate.Get() : this;
}
const IFWL_WidgetDelegate* GetDelegate() const {
return m_pDelegate ? m_pDelegate.Get() : this;
}
const CFWL_App* GetOwnerApp() const { return m_pOwnerApp.Get(); }
uint32_t GetEventKey() const { return m_nEventKey; }
void SetEventKey(uint32_t key) { m_nEventKey = key; }
CXFA_FFWidget* GetLayoutItem() const { return m_pLayoutItem; }
void SetLayoutItem(CXFA_FFWidget* pItem) { m_pLayoutItem = pItem; }
void RepaintRect(const CFX_RectF& pRect);
void Repaint();
protected:
CFWL_Widget(const CFWL_App* app,
std::unique_ptr<CFWL_WidgetProperties> properties,
CFWL_Widget* pOuter);
bool IsEnabled() const;
bool IsLocked() const { return m_iLock > 0; }
bool HasBorder() const;
CFX_RectF GetEdgeRect();
float GetBorderSize(bool bCX);
CFX_RectF GetRelativeRect();
IFWL_ThemeProvider* GetAvailableTheme();
CFX_SizeF CalcTextSize(const WideString& wsText,
IFWL_ThemeProvider* pTheme,
bool bMultiLine);
void CalcTextRect(const WideString& wsText,
IFWL_ThemeProvider* pTheme,
const FDE_TextStyle& dwTTOStyles,
FDE_TextAlignment iTTOAlign,
CFX_RectF* pRect);
void SetGrab(bool bSet);
void RegisterEventTarget(CFWL_Widget* pEventSource);
void UnregisterEventTarget();
void DispatchEvent(CFWL_Event* pEvent);
void DrawBorder(CXFA_Graphics* pGraphics,
CFWL_Part iPartBorder,
IFWL_ThemeProvider* pTheme,
const CFX_Matrix& pMatrix);
UnownedPtr<const CFWL_App> const m_pOwnerApp;
UnownedPtr<CFWL_WidgetMgr> const m_pWidgetMgr;
std::unique_ptr<CFWL_WidgetProperties> m_pProperties;
CFWL_Widget* m_pOuter;
int32_t m_iLock;
private:
CFWL_Widget* GetParent() const { return m_pWidgetMgr->GetParentWidget(this); }
CFX_SizeF GetOffsetFromParent(CFWL_Widget* pParent);
bool IsVisible() const;
bool IsOverLapper() const;
bool IsPopup() const;
bool IsChild() const;
CFWL_Widget* GetRootOuter();
void DrawBackground(CXFA_Graphics* pGraphics,
CFWL_Part iPartBk,
IFWL_ThemeProvider* pTheme,
const CFX_Matrix* pMatrix);
void NotifyDriver();
bool IsParent(CFWL_Widget* pParent);
CXFA_FFWidget* m_pLayoutItem;
uint32_t m_nEventKey;
UnownedPtr<IFWL_WidgetDelegate> m_pDelegate;
};
#endif // XFA_FWL_CFWL_WIDGET_H_
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