| // 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_SCROLLBAR_H_ |
| #define XFA_FWL_CFWL_SCROLLBAR_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| #include "core/fxcrt/cfx_timer.h" |
| #include "third_party/base/check.h" |
| #include "xfa/fwl/cfwl_eventscroll.h" |
| #include "xfa/fwl/cfwl_themepart.h" |
| #include "xfa/fwl/cfwl_widget.h" |
| |
| #define FWL_STYLEEXT_SCB_Horz (0L << 0) |
| #define FWL_STYLEEXT_SCB_Vert (1L << 0) |
| |
| class CFWL_ScrollBar final : public CFWL_Widget, |
| public CFX_Timer::CallbackIface { |
| public: |
| CONSTRUCT_VIA_MAKE_GARBAGE_COLLECTED; |
| ~CFWL_ScrollBar() override; |
| |
| // CFWL_Widget: |
| FWL_Type GetClassID() const override; |
| void Update() override; |
| void DrawWidget(CFGAS_GEGraphics* pGraphics, |
| const CFX_Matrix& matrix) override; |
| void OnProcessMessage(CFWL_Message* pMessage) override; |
| void OnDrawWidget(CFGAS_GEGraphics* pGraphics, |
| const CFX_Matrix& matrix) override; |
| |
| // CFX_Timer::CallbackIface: |
| void OnTimerFired() override; |
| |
| void GetRange(float* fMin, float* fMax) const { |
| *fMin = m_fRangeMin; |
| *fMax = m_fRangeMax; |
| } |
| void SetRange(float fMin, float fMax) { |
| m_fRangeMin = fMin; |
| m_fRangeMax = fMax; |
| } |
| float GetPageSize() const { return m_fPageSize; } |
| void SetPageSize(float fPageSize) { m_fPageSize = fPageSize; } |
| float GetStepSize() const { return m_fStepSize; } |
| void SetStepSize(float fStepSize) { m_fStepSize = fStepSize; } |
| float GetPos() const { return m_fPos; } |
| void SetPos(float fPos) { m_fPos = fPos; } |
| void SetTrackPos(float fTrackPos); |
| |
| private: |
| CFWL_ScrollBar(CFWL_App* app, |
| const Properties& properties, |
| CFWL_Widget* pOuter); |
| |
| bool IsVertical() const { return !!(GetStyleExts() & FWL_STYLEEXT_SCB_Vert); } |
| void DrawUpperTrack(CFGAS_GEGraphics* pGraphics, const CFX_Matrix& mtMatrix); |
| void DrawLowerTrack(CFGAS_GEGraphics* pGraphics, const CFX_Matrix& mtMatrix); |
| void DrawMaxArrowBtn(CFGAS_GEGraphics* pGraphics, const CFX_Matrix& mtMatrix); |
| void DrawMinArrowBtn(CFGAS_GEGraphics* pGraphics, const CFX_Matrix& mtMatrix); |
| void DrawThumb(CFGAS_GEGraphics* pGraphics, const CFX_Matrix& mtMatrix); |
| void Layout(); |
| void CalcButtonLen(); |
| CFX_RectF CalcMinButtonRect(); |
| CFX_RectF CalcMaxButtonRect(); |
| CFX_RectF CalcThumbButtonRect(const CFX_RectF& rtThumbRect); |
| CFX_RectF CalcMinTrackRect(const CFX_RectF& rtMinRect); |
| CFX_RectF CalcMaxTrackRect(const CFX_RectF& rtMaxRect); |
| float GetTrackPointPos(const CFX_PointF& point); |
| |
| bool SendEvent(); |
| bool OnScroll(CFWL_EventScroll::Code dwCode, float fPos); |
| void OnLButtonDown(const CFX_PointF& point); |
| void OnLButtonUp(const CFX_PointF& point); |
| void OnMouseMove(const CFX_PointF& point); |
| void OnMouseLeave(); |
| void OnMouseWheel(const CFX_Vector& delta); |
| bool DoScroll(CFWL_EventScroll::Code dwCode, float fPos); |
| void DoMouseDown(int32_t iItem, |
| const CFX_RectF& rtItem, |
| CFWL_PartState* pState, |
| const CFX_PointF& point); |
| void DoMouseUp(int32_t iItem, |
| const CFX_RectF& rtItem, |
| CFWL_PartState* pState, |
| const CFX_PointF& point); |
| void DoMouseMove(int32_t iItem, |
| const CFX_RectF& rtItem, |
| CFWL_PartState* pState, |
| const CFX_PointF& point); |
| void DoMouseLeave(int32_t iItem, |
| const CFX_RectF& rtItem, |
| CFWL_PartState* pState); |
| void DoMouseHover(int32_t iItem, |
| const CFX_RectF& rtItem, |
| CFWL_PartState* pState); |
| |
| float m_fRangeMin = 0.0f; |
| float m_fRangeMax = -1.0f; |
| float m_fPageSize = 0.0f; |
| float m_fStepSize = 0.0f; |
| float m_fPos = 0.0f; |
| float m_fTrackPos = 0.0f; |
| CFWL_PartState m_iMinButtonState = CFWL_PartState::kNormal; |
| CFWL_PartState m_iMaxButtonState = CFWL_PartState::kNormal; |
| CFWL_PartState m_iThumbButtonState = CFWL_PartState::kNormal; |
| CFWL_PartState m_iMinTrackState = CFWL_PartState::kNormal; |
| CFWL_PartState m_iMaxTrackState = CFWL_PartState::kNormal; |
| float m_fLastTrackPos = 0.0f; |
| CFX_PointF m_cpTrackPoint; |
| int32_t m_iMouseWheel = 0; |
| float m_fButtonLen = 0.0f; |
| bool m_bMouseDown = false; |
| bool m_bMinSize = false; |
| CFX_RectF m_ClientRect; |
| CFX_RectF m_ThumbRect; |
| CFX_RectF m_MinBtnRect; |
| CFX_RectF m_MaxBtnRect; |
| CFX_RectF m_MinTrackRect; |
| CFX_RectF m_MaxTrackRect; |
| std::unique_ptr<CFX_Timer> m_pTimer; |
| }; |
| |
| #endif // XFA_FWL_CFWL_SCROLLBAR_H_ |