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Diffstat (limited to 'xfa/fwl/core/ifwl_scrollbar.h')
| -rw-r--r-- | xfa/fwl/core/ifwl_scrollbar.h | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/xfa/fwl/core/ifwl_scrollbar.h b/xfa/fwl/core/ifwl_scrollbar.h new file mode 100644 index 0000000000..2a46e0f33d --- /dev/null +++ b/xfa/fwl/core/ifwl_scrollbar.h @@ -0,0 +1,175 @@ +// 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_SCROLLBAR_H_ +#define XFA_FWL_CORE_IFWL_SCROLLBAR_H_ + +#include "core/fxcrt/fx_system.h" +#include "xfa/fwl/core/cfwl_widgetimpproperties.h" +#include "xfa/fwl/core/fwl_error.h" +#include "xfa/fwl/core/ifwl_dataprovider.h" +#include "xfa/fwl/core/ifwl_timer.h" +#include "xfa/fwl/core/ifwl_widget.h" + +class CFWL_ScrollBarImpDelegate; +class CFWL_WidgetImpProperties; +class IFWL_Widget; + +#define FWL_CLASS_ScrollBar L"FWL_SCROLLBAR" +#define FWL_STYLEEXT_SCB_Horz (0L << 0) +#define FWL_STYLEEXT_SCB_Vert (1L << 0) + +enum FWL_SCBCODE { + FWL_SCBCODE_None = 1, + FWL_SCBCODE_Min, + FWL_SCBCODE_Max, + FWL_SCBCODE_PageBackward, + FWL_SCBCODE_PageForward, + FWL_SCBCODE_StepBackward, + FWL_SCBCODE_StepForward, + FWL_SCBCODE_Pos, + FWL_SCBCODE_TrackPos, + FWL_SCBCODE_EndScroll, +}; + +class IFWL_ScrollBarDP : public IFWL_DataProvider {}; + +class IFWL_ScrollBar : public IFWL_Widget, public IFWL_Timer { + public: + static IFWL_ScrollBar* Create(const CFWL_WidgetImpProperties& properties, + IFWL_Widget* pOuter); + + IFWL_ScrollBar(const CFWL_WidgetImpProperties& properties, + IFWL_Widget* pOuter); + ~IFWL_ScrollBar() override; + + // IFWL_Widget + FWL_Error GetClassName(CFX_WideString& wsClass) const override; + FWL_Type GetClassID() const override; + FWL_Error Initialize() override; + FWL_Error Finalize() override; + FWL_Error GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE) override; + FWL_Error Update() override; + FWL_Error DrawWidget(CFX_Graphics* pGraphics, + const CFX_Matrix* pMatrix = nullptr) override; + + // IFWL_Timer + void Run(IFWL_TimerInfo* pTimerInfo) override; + + FX_BOOL IsVertical(); + FWL_Error GetRange(FX_FLOAT& fMin, FX_FLOAT& fMax); + FWL_Error SetRange(FX_FLOAT fMin, FX_FLOAT fMax); + FX_FLOAT GetPageSize(); + FWL_Error SetPageSize(FX_FLOAT fPageSize); + FX_FLOAT GetStepSize(); + FWL_Error SetStepSize(FX_FLOAT fStepSize); + FX_FLOAT GetPos(); + FWL_Error SetPos(FX_FLOAT fPos); + FX_FLOAT GetTrackPos(); + FWL_Error SetTrackPos(FX_FLOAT fTrackPos); + FX_BOOL DoScroll(uint32_t dwCode, FX_FLOAT fPos = 0.0f); + FWL_Error SetOuter(IFWL_Widget* pOuter); + + protected: + friend class CFWL_ScrollBarImpDelegate; + + void DrawTrack(CFX_Graphics* pGraphics, + IFWL_ThemeProvider* pTheme, + FX_BOOL bLower = TRUE, + const CFX_Matrix* pMatrix = nullptr); + void DrawArrowBtn(CFX_Graphics* pGraphics, + IFWL_ThemeProvider* pTheme, + FX_BOOL bMinBtn = TRUE, + const CFX_Matrix* pMatrix = nullptr); + void DrawThumb(CFX_Graphics* pGraphics, + IFWL_ThemeProvider* pTheme, + const CFX_Matrix* pMatrix = nullptr); + void Layout(); + void CalcButtonLen(); + void CalcMinButtonRect(CFX_RectF& rect); + void CalcMaxButtonRect(CFX_RectF& rect); + void CalcThumbButtonRect(CFX_RectF& rect); + void CalcMinTrackRect(CFX_RectF& rect); + void CalcMaxTrackRect(CFX_RectF& rect); + FX_FLOAT GetTrackPointPos(FX_FLOAT fx, FX_FLOAT fy); + void GetTrackRect(CFX_RectF& rect, FX_BOOL bLower = TRUE); + FX_BOOL SendEvent(); + FX_BOOL OnScroll(uint32_t dwCode, FX_FLOAT fPos); + + IFWL_TimerInfo* m_pTimerInfo; + FX_FLOAT m_fRangeMin; + FX_FLOAT m_fRangeMax; + FX_FLOAT m_fPageSize; + FX_FLOAT m_fStepSize; + FX_FLOAT m_fPos; + FX_FLOAT m_fTrackPos; + int32_t m_iMinButtonState; + int32_t m_iMaxButtonState; + int32_t m_iThumbButtonState; + int32_t m_iMinTrackState; + int32_t m_iMaxTrackState; + FX_FLOAT m_fLastTrackPos; + FX_FLOAT m_cpTrackPointX; + FX_FLOAT m_cpTrackPointY; + int32_t m_iMouseWheel; + FX_BOOL m_bTrackMouseLeave; + FX_BOOL m_bMouseHover; + FX_BOOL m_bMouseDown; + FX_BOOL m_bRepaintThumb; + FX_FLOAT m_fButtonLen; + FX_BOOL m_bMinSize; + CFX_RectF m_rtClient; + CFX_RectF m_rtThumb; + CFX_RectF m_rtMinBtn; + CFX_RectF m_rtMaxBtn; + CFX_RectF m_rtMinTrack; + CFX_RectF m_rtMaxTrack; + FX_BOOL m_bCustomLayout; + FX_FLOAT m_fMinThumb; + + protected: + IFWL_ScrollBar(); +}; + +class CFWL_ScrollBarImpDelegate : public CFWL_WidgetImpDelegate { + public: + CFWL_ScrollBarImpDelegate(IFWL_ScrollBar* pOwner); + void OnProcessMessage(CFWL_Message* pMessage) override; + void OnDrawWidget(CFX_Graphics* pGraphics, + const CFX_Matrix* pMatrix = nullptr) override; + + protected: + void OnLButtonDown(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy); + void OnLButtonUp(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy); + void OnMouseMove(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy); + void OnMouseLeave(); + void OnMouseWheel(FX_FLOAT fx, + FX_FLOAT fy, + uint32_t dwFlags, + FX_FLOAT fDeltaX, + FX_FLOAT fDeltaY); + void DoMouseDown(int32_t iItem, + const CFX_RectF& rtItem, + int32_t& iState, + FX_FLOAT fx, + FX_FLOAT fy); + void DoMouseUp(int32_t iItem, + const CFX_RectF& rtItem, + int32_t& iState, + FX_FLOAT fx, + FX_FLOAT fy); + void DoMouseMove(int32_t iItem, + const CFX_RectF& rtItem, + int32_t& iState, + FX_FLOAT fx, + FX_FLOAT fy); + void DoMouseLeave(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState); + void DoMouseHover(int32_t iItem, const CFX_RectF& rtItem, int32_t& iState); + + IFWL_ScrollBar* m_pOwner; +}; + +#endif // XFA_FWL_CORE_IFWL_SCROLLBAR_H_ |