// 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 _FWL_WIDGET_H
#define _FWL_WIDGET_H
class IFWL_Target;
class IFWL_ThemeProvider;
class CFWL_WidgetImpProperties;
class IFWL_DataProvider;
class IFWL_Widget;
class IFWL_WidgetDelegate;
class IFWL_Custom;
class IFWL_Proxy;
class IFWL_Form;
class IFWL_DataProvider
{
public:
    virtual FWL_ERR		GetCaption(IFWL_Widget *pWidget, CFX_WideString &wsCaption) = 0;
};
class IFWL_Widget : public IFWL_Target
{
public:
    FWL_ERR			GetWidgetRect(CFX_RectF &rect, FX_BOOL bAutoSize = FALSE);
    FWL_ERR			GetGlobalRect(CFX_RectF &rect);
    FWL_ERR			SetWidgetRect(const CFX_RectF &rect);
    FWL_ERR			GetClientRect(CFX_RectF &rect);
    IFWL_Widget*	GetParent();
    FWL_ERR			SetParent(IFWL_Widget *pParent);
    IFWL_Widget*	GetOwner();
    FWL_ERR			SetOwner(IFWL_Widget *pOwner);
    IFWL_Widget*	GetOuter();
    FX_DWORD		GetStyles();
    FWL_ERR			ModifyStyles(FX_DWORD dwStylesAdded, FX_DWORD dwStylesRemoved);
    FX_DWORD		GetStylesEx();
    FWL_ERR			ModifyStylesEx(FX_DWORD dwStylesExAdded, FX_DWORD dwStylesExRemoved);
    FX_DWORD		GetStates();
    FWL_ERR			SetStates(FX_DWORD dwStates, FX_BOOL bSet = TRUE);
    FWL_ERR			SetPrivateData(FX_LPVOID module_id, FX_LPVOID pData, PD_CALLBACK_FREEDATA callback);
    FX_LPVOID		GetPrivateData(FX_LPVOID module_id);
    FWL_ERR			Update();
    FWL_ERR			LockUpdate();
    FWL_ERR			UnlockUpdate();
    FX_DWORD		HitTest(FX_FLOAT fx, FX_FLOAT fy);
    FWL_ERR			TransformTo(IFWL_Widget *pWidget, FX_FLOAT &fx, FX_FLOAT &fy);
    FWL_ERR			TransformTo(IFWL_Widget *pWidget, CFX_RectF &rt);
    FWL_ERR			GetMatrix(CFX_Matrix &matrix, FX_BOOL bGlobal = FALSE);
    FWL_ERR			SetMatrix(const CFX_Matrix &matrix);
    FWL_ERR			DrawWidget(CFX_Graphics *pGraphics, const CFX_Matrix *pMatrix = NULL);
    IFWL_ThemeProvider*		GetThemeProvider();
    FWL_ERR					SetThemeProvider(IFWL_ThemeProvider *pThemeProvider);
    FWL_ERR					SetDataProvider(IFWL_DataProvider *pDataProvider);
    IFWL_WidgetDelegate*	SetDelegate(IFWL_WidgetDelegate *pDelegate);
    IFWL_NoteThread*		GetOwnerThread() const;
    CFX_SizeF				GetOffsetFromParent(IFWL_Widget *pParent);
};
class IFWL_WidgetDelegate
{
public:
    virtual FX_INT32	OnProcessMessage(CFWL_Message *pMessage) = 0;
    virtual FWL_ERR		OnProcessEvent(CFWL_Event *pEvent) = 0;
    virtual FWL_ERR		OnDrawWidget(CFX_Graphics *pGraphics, const CFX_Matrix *pMatrix = NULL) = 0;
};
class CFWL_WidgetImpProperties
{
public:
    CFWL_WidgetImpProperties()
    {
        m_ctmOnParent.Reset();
        m_rtWidget.Set(0, 0, 0, 0);
        m_dwStyles		= FWL_WGTSTYLE_Child;
        m_dwStyleExes	= 0;
        m_dwStates		= 0;
        m_pThemeProvider = NULL;
        m_pDataProvider = NULL;
        m_pParent		= NULL;
        m_pOwner		= NULL;
    }
    CFX_Matrix					m_ctmOnParent;
    CFX_RectF					m_rtWidget;
    FX_DWORD					m_dwStyles;
    FX_DWORD					m_dwStyleExes;
    FX_DWORD					m_dwStates;
    IFWL_ThemeProvider		   *m_pThemeProvider;
    IFWL_DataProvider		   *m_pDataProvider;
    IFWL_Widget				   *m_pParent;
    IFWL_Widget				   *m_pOwner;
};
class IFWL_Custom : public IFWL_Widget
{
public:
    static IFWL_Custom* Create();

    FWL_ERR		Initialize(IFWL_Widget *pOuter = NULL);
    FWL_ERR		Initialize(const CFWL_WidgetImpProperties &properties, IFWL_Widget *pOuter = NULL);
    FWL_ERR		SetProxy(IFWL_Proxy *pProxy);
protected:
    IFWL_Custom();
    virtual ~IFWL_Custom();
};
class IFWL_Proxy
{
public:
    virtual	FWL_ERR		GetWidgetRect(CFX_RectF &rect, FX_BOOL bAutoSize = FALSE) = 0;
    virtual	FWL_ERR		Update() = 0;
};
#define FWL_ACCEL_Control	(1L << 0)
#define FWL_ACCEL_Alt		(1L << 1)
#define FWL_ACCEL_Shift		(1L << 2)
#define FWL_ACCEL_VirtKey	(1L << 3)
typedef struct _FWL_ACCEL {
    FX_DWORD dwKey;
    FX_DWORD dwCmd;
} FWL_ACCEL;
typedef CFX_MapPtrTemplate <FX_DWORD, FX_DWORD> CFX_MapAccelerators;
FWL_ERR FWL_Accelerator_SetApp(CFX_MapAccelerators *pMapAccel);
FWL_ERR FWL_Accelerator_SetThread(CFX_MapAccelerators *pMapAccel);
FWL_ERR FWL_Accelerator_SetForm(IFWL_Form *pFrom, CFX_MapAccelerators *pMapAccel);
FWL_ERR FWL_EnabelWidget(IFWL_Widget *widget, FX_BOOL bEnable);
#endif