| // 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 |
| |
| #include "xfa/fwl/basewidget/fwl_scrollbarimp.h" |
| |
| #include "xfa/fwl/basewidget/ifwl_scrollbar.h" |
| #include "xfa/fwl/core/cfwl_message.h" |
| #include "xfa/fwl/core/cfwl_themebackground.h" |
| #include "xfa/fwl/core/cfwl_themepart.h" |
| #include "xfa/fwl/core/fwl_noteimp.h" |
| #include "xfa/fwl/core/fwl_widgetimp.h" |
| #include "xfa/fwl/core/ifwl_themeprovider.h" |
| |
| #define FWL_SCROLLBAR_Elapse 500 |
| #define FWL_SCROLLBAR_MinThumb 5 |
| |
| // static |
| IFWL_ScrollBar* IFWL_ScrollBar::Create( |
| const CFWL_WidgetImpProperties& properties, |
| IFWL_Widget* pOuter) { |
| IFWL_ScrollBar* pScrollBar = new IFWL_ScrollBar; |
| CFWL_ScrollBarImp* pScrollBarImpl = new CFWL_ScrollBarImp(properties, pOuter); |
| pScrollBar->SetImpl(pScrollBarImpl); |
| pScrollBarImpl->SetInterface(pScrollBar); |
| return pScrollBar; |
| } |
| IFWL_ScrollBar::IFWL_ScrollBar() {} |
| FX_BOOL IFWL_ScrollBar::IsVertical() { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->IsVertical(); |
| } |
| FWL_Error IFWL_ScrollBar::GetRange(FX_FLOAT& fMin, FX_FLOAT& fMax) { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->GetRange(fMin, fMax); |
| } |
| FWL_Error IFWL_ScrollBar::SetRange(FX_FLOAT fMin, FX_FLOAT fMax) { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->SetRange(fMin, fMax); |
| } |
| FX_FLOAT IFWL_ScrollBar::GetPageSize() { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->GetPageSize(); |
| } |
| FWL_Error IFWL_ScrollBar::SetPageSize(FX_FLOAT fPageSize) { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->SetPageSize(fPageSize); |
| } |
| FX_FLOAT IFWL_ScrollBar::GetStepSize() { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->GetStepSize(); |
| } |
| FWL_Error IFWL_ScrollBar::SetStepSize(FX_FLOAT fStepSize) { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->SetStepSize(fStepSize); |
| } |
| FX_FLOAT IFWL_ScrollBar::GetPos() { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->GetPos(); |
| } |
| FWL_Error IFWL_ScrollBar::SetPos(FX_FLOAT fPos) { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->SetPos(fPos); |
| } |
| FX_FLOAT IFWL_ScrollBar::GetTrackPos() { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->GetTrackPos(); |
| } |
| FWL_Error IFWL_ScrollBar::SetTrackPos(FX_FLOAT fTrackPos) { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->SetTrackPos(fTrackPos); |
| } |
| FX_BOOL IFWL_ScrollBar::DoScroll(uint32_t dwCode, FX_FLOAT fPos) { |
| return static_cast<CFWL_ScrollBarImp*>(GetImpl())->DoScroll(dwCode, fPos); |
| } |
| CFWL_ScrollBarImp::CFWL_ScrollBarImp(const CFWL_WidgetImpProperties& properties, |
| IFWL_Widget* pOuter) |
| : CFWL_WidgetImp(properties, pOuter), |
| m_pTimerInfo(nullptr), |
| m_fRangeMin(0), |
| m_fRangeMax(-1), |
| m_fPageSize(0), |
| m_fStepSize(0), |
| m_fPos(0), |
| m_fTrackPos(0), |
| m_iMinButtonState(CFWL_PartState_Normal), |
| m_iMaxButtonState(CFWL_PartState_Normal), |
| m_iThumbButtonState(CFWL_PartState_Normal), |
| m_iMinTrackState(CFWL_PartState_Normal), |
| m_iMaxTrackState(CFWL_PartState_Normal), |
| m_fLastTrackPos(0), |
| m_cpTrackPointX(0), |
| m_cpTrackPointY(0), |
| m_iMouseWheel(0), |
| m_bTrackMouseLeave(FALSE), |
| m_bMouseHover(FALSE), |
| m_bMouseDown(FALSE), |
| m_bRepaintThumb(FALSE), |
| m_fButtonLen(0), |
| m_bMinSize(FALSE), |
| m_bCustomLayout(FALSE), |
| m_fMinThumb(FWL_SCROLLBAR_MinThumb) { |
| m_rtClient.Reset(); |
| m_rtThumb.Reset(); |
| m_rtMinBtn.Reset(); |
| m_rtMaxBtn.Reset(); |
| m_rtMinTrack.Reset(); |
| m_rtMaxTrack.Reset(); |
| } |
| |
| CFWL_ScrollBarImp::~CFWL_ScrollBarImp() {} |
| |
| FWL_Error CFWL_ScrollBarImp::GetClassName(CFX_WideString& wsClass) const { |
| wsClass = FWL_CLASS_ScrollBar; |
| return FWL_Error::Succeeded; |
| } |
| |
| FWL_Type CFWL_ScrollBarImp::GetClassID() const { |
| return FWL_Type::ScrollBar; |
| } |
| |
| FWL_Error CFWL_ScrollBarImp::Initialize() { |
| if (CFWL_WidgetImp::Initialize() != FWL_Error::Succeeded) |
| return FWL_Error::Indefinite; |
| |
| m_pDelegate = new CFWL_ScrollBarImpDelegate(this); |
| return FWL_Error::Succeeded; |
| } |
| |
| FWL_Error CFWL_ScrollBarImp::Finalize() { |
| delete m_pDelegate; |
| m_pDelegate = nullptr; |
| return CFWL_WidgetImp::Finalize(); |
| } |
| FWL_Error CFWL_ScrollBarImp::GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize) { |
| if (bAutoSize) { |
| rect.Set(0, 0, 0, 0); |
| FX_FLOAT* pfMinWidth = static_cast<FX_FLOAT*>( |
| GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth)); |
| if (!pfMinWidth) |
| return FWL_Error::Indefinite; |
| if (IsVertical()) { |
| rect.Set(0, 0, (*pfMinWidth), (*pfMinWidth) * 3); |
| } else { |
| rect.Set(0, 0, (*pfMinWidth) * 3, (*pfMinWidth)); |
| } |
| CFWL_WidgetImp::GetWidgetRect(rect, TRUE); |
| } else { |
| rect = m_pProperties->m_rtWidget; |
| } |
| return FWL_Error::Succeeded; |
| } |
| FWL_Error CFWL_ScrollBarImp::Update() { |
| if (IsLocked()) { |
| return FWL_Error::Indefinite; |
| } |
| if (!m_pProperties->m_pThemeProvider) { |
| m_pProperties->m_pThemeProvider = GetAvailableTheme(); |
| } |
| Layout(); |
| return FWL_Error::Succeeded; |
| } |
| FWL_Error CFWL_ScrollBarImp::DrawWidget(CFX_Graphics* pGraphics, |
| const CFX_Matrix* pMatrix) { |
| if (!pGraphics) |
| return FWL_Error::Indefinite; |
| if (!m_pProperties->m_pThemeProvider) |
| return FWL_Error::Indefinite; |
| IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider; |
| if (HasBorder()) { |
| DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix); |
| } |
| if (HasEdge()) { |
| DrawEdge(pGraphics, CFWL_Part::Edge, pTheme, pMatrix); |
| } |
| DrawTrack(pGraphics, pTheme, TRUE, pMatrix); |
| DrawTrack(pGraphics, pTheme, FALSE, pMatrix); |
| DrawArrowBtn(pGraphics, pTheme, TRUE, pMatrix); |
| DrawArrowBtn(pGraphics, pTheme, FALSE, pMatrix); |
| DrawThumb(pGraphics, pTheme, pMatrix); |
| return FWL_Error::Succeeded; |
| } |
| inline FX_BOOL CFWL_ScrollBarImp::IsVertical() { |
| return m_pProperties->m_dwStyleExes & FWL_STYLEEXT_SCB_Vert; |
| } |
| FWL_Error CFWL_ScrollBarImp::GetRange(FX_FLOAT& fMin, FX_FLOAT& fMax) { |
| fMin = m_fRangeMin; |
| fMax = m_fRangeMax; |
| return FWL_Error::Succeeded; |
| } |
| FWL_Error CFWL_ScrollBarImp::SetRange(FX_FLOAT fMin, FX_FLOAT fMax) { |
| m_fRangeMin = fMin; |
| m_fRangeMax = fMax; |
| return FWL_Error::Succeeded; |
| } |
| FX_FLOAT CFWL_ScrollBarImp::GetPageSize() { |
| return m_fPageSize; |
| } |
| FWL_Error CFWL_ScrollBarImp::SetPageSize(FX_FLOAT fPageSize) { |
| m_fPageSize = fPageSize; |
| return FWL_Error::Succeeded; |
| } |
| FX_FLOAT CFWL_ScrollBarImp::GetStepSize() { |
| return m_fStepSize; |
| } |
| FWL_Error CFWL_ScrollBarImp::SetStepSize(FX_FLOAT fStepSize) { |
| m_fStepSize = fStepSize; |
| return FWL_Error::Succeeded; |
| } |
| FX_FLOAT CFWL_ScrollBarImp::GetPos() { |
| return m_fPos; |
| } |
| FWL_Error CFWL_ScrollBarImp::SetPos(FX_FLOAT fPos) { |
| m_fPos = fPos; |
| return FWL_Error::Succeeded; |
| } |
| FX_FLOAT CFWL_ScrollBarImp::GetTrackPos() { |
| return m_fTrackPos; |
| } |
| FWL_Error CFWL_ScrollBarImp::SetTrackPos(FX_FLOAT fTrackPos) { |
| m_fTrackPos = fTrackPos; |
| CalcThumbButtonRect(m_rtThumb); |
| CalcMinTrackRect(m_rtMinTrack); |
| CalcMaxTrackRect(m_rtMaxTrack); |
| return FWL_Error::Succeeded; |
| } |
| FX_BOOL CFWL_ScrollBarImp::DoScroll(uint32_t dwCode, FX_FLOAT fPos) { |
| switch (dwCode) { |
| case FWL_SCBCODE_Min: |
| case FWL_SCBCODE_Max: |
| case FWL_SCBCODE_PageBackward: |
| case FWL_SCBCODE_PageForward: |
| case FWL_SCBCODE_StepBackward: |
| break; |
| case FWL_SCBCODE_StepForward: |
| break; |
| case FWL_SCBCODE_Pos: |
| case FWL_SCBCODE_TrackPos: |
| case FWL_SCBCODE_EndScroll: |
| break; |
| default: { return FALSE; } |
| } |
| return OnScroll(dwCode, fPos); |
| } |
| |
| void CFWL_ScrollBarImp::Run(IFWL_TimerInfo* pTimerInfo) { |
| if (m_pTimerInfo) |
| m_pTimerInfo->StopTimer(); |
| |
| if (!SendEvent()) |
| m_pTimerInfo = StartTimer(0, true); |
| } |
| |
| FWL_Error CFWL_ScrollBarImp::SetOuter(IFWL_Widget* pOuter) { |
| m_pOuter = pOuter; |
| return FWL_Error::Succeeded; |
| } |
| void CFWL_ScrollBarImp::DrawTrack(CFX_Graphics* pGraphics, |
| IFWL_ThemeProvider* pTheme, |
| FX_BOOL bLower, |
| const CFX_Matrix* pMatrix) { |
| CFWL_ThemeBackground param; |
| param.m_pWidget = m_pInterface; |
| param.m_iPart = bLower ? CFWL_Part::LowerTrack : CFWL_Part::UpperTrack; |
| param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) |
| ? CFWL_PartState_Disabled |
| : (bLower ? m_iMinTrackState : m_iMaxTrackState); |
| param.m_pGraphics = pGraphics; |
| param.m_matrix.Concat(*pMatrix); |
| param.m_rtPart = bLower ? m_rtMinTrack : m_rtMaxTrack; |
| pTheme->DrawBackground(¶m); |
| } |
| void CFWL_ScrollBarImp::DrawArrowBtn(CFX_Graphics* pGraphics, |
| IFWL_ThemeProvider* pTheme, |
| FX_BOOL bMinBtn, |
| const CFX_Matrix* pMatrix) { |
| CFWL_ThemeBackground param; |
| param.m_pWidget = m_pInterface; |
| param.m_iPart = bMinBtn ? CFWL_Part::ForeArrow : CFWL_Part::BackArrow; |
| param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) |
| ? CFWL_PartState_Disabled |
| : (bMinBtn ? m_iMinButtonState : m_iMaxButtonState); |
| param.m_pGraphics = pGraphics; |
| param.m_matrix.Concat(*pMatrix); |
| param.m_rtPart = bMinBtn ? m_rtMinBtn : m_rtMaxBtn; |
| if (param.m_rtPart.height > 0 && param.m_rtPart.width > 0) { |
| pTheme->DrawBackground(¶m); |
| } |
| } |
| void CFWL_ScrollBarImp::DrawThumb(CFX_Graphics* pGraphics, |
| IFWL_ThemeProvider* pTheme, |
| const CFX_Matrix* pMatrix) { |
| CFWL_ThemeBackground param; |
| param.m_pWidget = m_pInterface; |
| param.m_iPart = CFWL_Part::Thumb; |
| param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) |
| ? CFWL_PartState_Disabled |
| : m_iThumbButtonState; |
| param.m_pGraphics = pGraphics; |
| param.m_matrix.Concat(*pMatrix); |
| param.m_rtPart = m_rtThumb; |
| pTheme->DrawBackground(¶m); |
| } |
| void CFWL_ScrollBarImp::Layout() { |
| IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider; |
| CFWL_ThemePart part; |
| part.m_pWidget = m_pInterface; |
| m_fMinThumb = *static_cast<FX_FLOAT*>( |
| pTheme->GetCapacity(&part, CFWL_WidgetCapacity::Size)); |
| m_bCustomLayout = pTheme->IsCustomizedLayout(m_pInterface); |
| GetClientRect(m_rtClient); |
| CalcButtonLen(); |
| CalcMinButtonRect(m_rtMinBtn); |
| CalcMaxButtonRect(m_rtMaxBtn); |
| CalcThumbButtonRect(m_rtThumb); |
| CalcMinTrackRect(m_rtMinTrack); |
| CalcMaxTrackRect(m_rtMaxTrack); |
| } |
| void CFWL_ScrollBarImp::CalcButtonLen() { |
| m_fButtonLen = IsVertical() ? m_rtClient.width : m_rtClient.height; |
| FX_FLOAT fLength = IsVertical() ? m_rtClient.height : m_rtClient.width; |
| if (fLength < m_fButtonLen * 2) { |
| m_fButtonLen = fLength / 2; |
| m_bMinSize = TRUE; |
| } else { |
| m_bMinSize = FALSE; |
| } |
| } |
| void CFWL_ScrollBarImp::CalcMinButtonRect(CFX_RectF& rect) { |
| if (m_bCustomLayout) { |
| IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider; |
| CFWL_ThemePart pPart; |
| pPart.m_rtPart = m_rtMinBtn; |
| pPart.m_pWidget = m_pInterface; |
| pPart.m_iPart = CFWL_Part::ForeArrow; |
| pPart.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) |
| ? CFWL_PartState_Disabled |
| : m_iMinButtonState; |
| pTheme->GetPartRect(&pPart, rect); |
| } else { |
| rect.left = m_rtClient.left; |
| rect.top = m_rtClient.top; |
| rect.width = IsVertical() ? m_rtClient.width : m_fButtonLen; |
| rect.height = IsVertical() ? m_fButtonLen : m_rtClient.height; |
| } |
| } |
| void CFWL_ScrollBarImp::CalcMaxButtonRect(CFX_RectF& rect) { |
| if (m_bCustomLayout) { |
| IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider; |
| CFWL_ThemePart pPart; |
| pPart.m_rtPart = m_rtMaxBtn; |
| pPart.m_pWidget = m_pInterface; |
| pPart.m_iPart = CFWL_Part::BackArrow; |
| pPart.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) |
| ? CFWL_PartState_Disabled |
| : m_iMaxButtonState; |
| pTheme->GetPartRect(&pPart, rect); |
| } else { |
| rect.left = |
| IsVertical() ? m_rtClient.left : m_rtClient.right() - m_fButtonLen; |
| rect.top = |
| IsVertical() ? m_rtClient.bottom() - m_fButtonLen : m_rtClient.top; |
| rect.width = IsVertical() ? m_rtClient.width : m_fButtonLen; |
| rect.height = IsVertical() ? m_fButtonLen : m_rtClient.height; |
| } |
| } |
| void CFWL_ScrollBarImp::CalcThumbButtonRect(CFX_RectF& rect) { |
| if (!IsEnabled()) { |
| m_rtThumb.Reset(); |
| return; |
| } |
| if (m_bMinSize) { |
| m_rtThumb.Empty(); |
| return; |
| } |
| FX_FLOAT fRange = m_fRangeMax - m_fRangeMin; |
| memset(&rect, 0, sizeof(CFX_Rect)); |
| if (fRange < 0) { |
| if (IsVertical()) { |
| rect.Set(m_rtClient.left, m_rtMaxBtn.bottom(), m_rtClient.width, 0); |
| } else { |
| rect.Set(m_rtMaxBtn.right(), m_rtClient.top, 0, m_rtClient.height); |
| } |
| return; |
| } |
| CFX_RectF rtClient = m_rtClient; |
| FX_FLOAT fLength = IsVertical() ? rtClient.height : rtClient.width; |
| FX_FLOAT fSize = m_fButtonLen; |
| if (m_bCustomLayout) { |
| if (IsVertical()) { |
| fLength = fLength - m_rtMinBtn.height - m_rtMaxBtn.height; |
| if (fLength < m_rtMinBtn.height || fLength < m_rtMaxBtn.height) { |
| fLength = 0.0f; |
| } |
| } else { |
| fLength = fLength - m_rtMinBtn.width - m_rtMaxBtn.width; |
| if (fLength < m_rtMinBtn.width || fLength < m_rtMaxBtn.width) { |
| fLength = 0.0f; |
| } |
| } |
| } else { |
| fLength -= fSize * 2.0f; |
| if (fLength < fSize) { |
| fLength = 0.0f; |
| } |
| } |
| FX_FLOAT fThumbSize = fLength * fLength / (fRange + fLength); |
| if (fThumbSize < m_fMinThumb) { |
| fThumbSize = m_fMinThumb; |
| } |
| FX_FLOAT fDiff = fLength - fThumbSize; |
| if (fDiff < 0.0f) { |
| fDiff = 0.0f; |
| } |
| FX_FLOAT fTrackPos = m_fTrackPos; |
| if (fTrackPos > m_fRangeMax) { |
| fTrackPos = m_fRangeMax; |
| } |
| if (fTrackPos < m_fRangeMin) { |
| fTrackPos = m_fRangeMin; |
| } |
| if (!fRange) |
| return; |
| if (m_bCustomLayout) { |
| FX_FLOAT iPos = fDiff * (fTrackPos - m_fRangeMin) / fRange; |
| rect.left = rtClient.left; |
| if (!IsVertical()) { |
| if ((m_rtMinBtn.right() == m_rtMaxBtn.left && m_rtMinBtn.width > 0 && |
| m_rtMaxBtn.width > 0) || |
| (0 == m_rtMinBtn.width && 0 == m_rtMaxBtn.width)) { |
| rect.left += iPos; |
| } else { |
| rect.left += m_rtMinBtn.right() + iPos; |
| } |
| } |
| rect.top = rtClient.top; |
| if (IsVertical()) { |
| if ((m_rtMinBtn.bottom() == m_rtMaxBtn.top && m_rtMinBtn.height > 0 && |
| m_rtMaxBtn.height > 0) || |
| (0 == m_rtMinBtn.height && 0 == m_rtMaxBtn.height)) { |
| rect.top += iPos; |
| } else { |
| rect.top += m_rtMinBtn.bottom() + iPos; |
| } |
| } |
| rect.width = IsVertical() ? rtClient.width : fThumbSize; |
| rect.height = IsVertical() ? fThumbSize : rtClient.height; |
| } else { |
| FX_FLOAT iPos = fSize + fDiff * (fTrackPos - m_fRangeMin) / fRange; |
| rect.left = rtClient.left; |
| if (!IsVertical()) { |
| rect.left += iPos; |
| } |
| rect.top = rtClient.top; |
| if (IsVertical()) { |
| rect.top += iPos; |
| } |
| rect.width = IsVertical() ? rtClient.width : fThumbSize; |
| rect.height = IsVertical() ? fThumbSize : rtClient.height; |
| } |
| } |
| void CFWL_ScrollBarImp::CalcMinTrackRect(CFX_RectF& rect) { |
| if (m_bMinSize) { |
| rect.Empty(); |
| return; |
| } |
| FX_FLOAT fBottom = m_rtThumb.bottom(); |
| FX_FLOAT fRight = m_rtThumb.right(); |
| FX_FLOAT ix = (m_rtThumb.left + fRight) / 2; |
| FX_FLOAT iy = (m_rtThumb.top + fBottom) / 2; |
| rect.left = m_rtClient.left; |
| rect.top = m_rtClient.top; |
| FX_BOOL bVertical = IsVertical(); |
| rect.width = bVertical ? m_rtClient.width : ix; |
| rect.height = bVertical ? iy : m_rtClient.height; |
| if (m_bCustomLayout) { |
| if (bVertical) { |
| if (0 == m_rtMinBtn.height && 0 == m_rtMaxBtn.height) { |
| rect.top = m_rtClient.top; |
| } else if (m_rtMinBtn.top < m_rtThumb.top) { |
| rect.top = m_rtMinBtn.bottom(); |
| rect.height -= (m_rtMinBtn.bottom() - m_rtClient.top); |
| } |
| } else { |
| if (0 == m_rtMinBtn.width && 0 == m_rtMaxBtn.width) { |
| rect.left = m_rtClient.left; |
| } else if (m_rtMinBtn.left < m_rtThumb.left) { |
| rect.left = m_rtMinBtn.right(); |
| rect.width -= (m_rtMinBtn.right() - m_rtClient.left); |
| } |
| } |
| } |
| } |
| void CFWL_ScrollBarImp::CalcMaxTrackRect(CFX_RectF& rect) { |
| if (m_bMinSize) { |
| rect.Empty(); |
| return; |
| } |
| FX_FLOAT ix = (m_rtThumb.left + m_rtThumb.right()) / 2; |
| FX_FLOAT iy = (m_rtThumb.top + m_rtThumb.bottom()) / 2; |
| FX_BOOL bVertical = IsVertical(); |
| rect.left = bVertical ? m_rtClient.left : ix; |
| rect.top = bVertical ? iy : m_rtClient.top; |
| rect.width = bVertical ? m_rtClient.width : m_rtClient.right() - ix; |
| rect.height = bVertical ? m_rtClient.bottom() - iy : m_rtClient.height; |
| if (m_bCustomLayout) { |
| if (bVertical) { |
| if (m_rtMinBtn.top > m_rtThumb.top && m_rtMinBtn.height > 0 && |
| m_rtMaxBtn.height > 0) { |
| rect.height -= (m_rtClient.bottom() - m_rtMinBtn.top); |
| } else if (m_rtMinBtn.height > 0 && m_rtMaxBtn.height > 0) { |
| rect.height -= (m_rtClient.bottom() - m_rtMaxBtn.top); |
| } |
| } else { |
| if (m_rtMinBtn.left > m_rtThumb.left && m_rtMinBtn.width > 0 && |
| m_rtMaxBtn.width > 0) { |
| rect.width -= (m_rtClient.right() - m_rtMinBtn.left); |
| } else if (m_rtMinBtn.width > 0 && m_rtMaxBtn.width > 0) { |
| rect.width -= (m_rtClient.right() - m_rtMaxBtn.left); |
| } |
| } |
| } |
| } |
| FX_FLOAT CFWL_ScrollBarImp::GetTrackPointPos(FX_FLOAT fx, FX_FLOAT fy) { |
| FX_FLOAT fDiffX = fx - m_cpTrackPointX; |
| FX_FLOAT fDiffY = fy - m_cpTrackPointY; |
| FX_FLOAT fRange = m_fRangeMax - m_fRangeMin; |
| FX_FLOAT fPos; |
| if (m_bCustomLayout) { |
| if (IsVertical()) { |
| if (0 == m_rtMinBtn.height && 0 == m_rtMaxBtn.height) { |
| fPos = fRange * fDiffY / (m_rtClient.height - m_rtThumb.height); |
| } else if (m_rtMinBtn.bottom() == m_rtMaxBtn.top) { |
| fPos = fRange * fDiffY / |
| (m_rtMinBtn.top - m_rtClient.top - m_rtThumb.height); |
| } else { |
| fPos = fRange * fDiffY / |
| (m_rtMaxBtn.top - m_rtMinBtn.bottom() - m_rtThumb.height); |
| } |
| } else { |
| if (0 == m_rtMinBtn.width && 0 == m_rtMaxBtn.width) { |
| fPos = fRange * fDiffX / (m_rtClient.width - m_rtThumb.width); |
| } else if (m_rtMinBtn.right() == m_rtMaxBtn.left) { |
| fPos = fRange * fDiffX / |
| (m_rtMinBtn.left - m_rtClient.left - m_rtThumb.width); |
| } else { |
| fPos = fRange * fDiffX / |
| (m_rtMaxBtn.left - m_rtMinBtn.right() - m_rtThumb.width); |
| } |
| } |
| } else { |
| if (IsVertical()) { |
| fPos = fRange * fDiffY / |
| (m_rtMaxBtn.top - m_rtMinBtn.bottom() - m_rtThumb.height); |
| } else { |
| fPos = fRange * fDiffX / |
| (m_rtMaxBtn.left - m_rtMinBtn.right() - m_rtThumb.width); |
| } |
| } |
| fPos += m_fLastTrackPos; |
| if (fPos < m_fRangeMin) { |
| fPos = m_fRangeMin; |
| } |
| if (fPos > m_fRangeMax) { |
| fPos = m_fRangeMax; |
| } |
| return fPos; |
| } |
| void CFWL_ScrollBarImp::GetTrackRect(CFX_RectF& rect, FX_BOOL bLower) { |
| FX_BOOL bDisabled = m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled; |
| if (bDisabled || m_bCustomLayout) { |
| rect = bLower ? m_rtMinTrack : m_rtMaxTrack; |
| } else { |
| FX_FLOAT fW = m_rtThumb.width / 2; |
| FX_FLOAT fH = m_rtThumb.height / 2; |
| FX_BOOL bVert = IsVertical(); |
| if (bLower) { |
| if (bVert) { |
| FX_FLOAT fMinTrackHeight = m_rtMinTrack.height - fH - m_rtMinBtn.height; |
| fMinTrackHeight = (fMinTrackHeight >= 0.0f) ? fMinTrackHeight : 0.0f; |
| rect.Set(m_rtMinTrack.left, m_rtMinTrack.top + m_rtMinBtn.height, |
| m_rtMinTrack.width, fMinTrackHeight); |
| } else { |
| FX_FLOAT fMinTrackWidth = |
| m_rtMinTrack.width - fW - m_rtMinBtn.width + 2; |
| fMinTrackWidth = (fMinTrackWidth >= 0.0f) ? fMinTrackWidth : 0.0f; |
| rect.Set(m_rtMinTrack.left + m_rtMinBtn.width - 1, m_rtMinTrack.top, |
| fMinTrackWidth, m_rtMinTrack.height); |
| } |
| } else { |
| if (bVert) { |
| FX_FLOAT fMaxTrackHeight = m_rtMaxTrack.height - fH - m_rtMaxBtn.height; |
| fMaxTrackHeight = (fMaxTrackHeight >= 0.0f) ? fMaxTrackHeight : 0.0f; |
| rect.Set(m_rtMaxTrack.left, m_rtMaxTrack.top + fH, m_rtMaxTrack.width, |
| fMaxTrackHeight); |
| } else { |
| FX_FLOAT fMaxTrackWidth = |
| m_rtMaxTrack.width - fW - m_rtMaxBtn.width + 2; |
| fMaxTrackWidth = (fMaxTrackWidth >= 0.0f) ? fMaxTrackWidth : 0.0f; |
| rect.Set(m_rtMaxTrack.left + fW, m_rtMaxTrack.top, fMaxTrackWidth, |
| m_rtMaxTrack.height); |
| } |
| } |
| } |
| } |
| FX_BOOL CFWL_ScrollBarImp::SendEvent() { |
| if (m_iMinButtonState == CFWL_PartState_Pressed) { |
| DoScroll(FWL_SCBCODE_StepBackward, m_fTrackPos); |
| return FALSE; |
| } |
| if (m_iMaxButtonState == CFWL_PartState_Pressed) { |
| DoScroll(FWL_SCBCODE_StepForward, m_fTrackPos); |
| return FALSE; |
| } |
| if (m_iMinTrackState == CFWL_PartState_Pressed) { |
| DoScroll(FWL_SCBCODE_PageBackward, m_fTrackPos); |
| return m_rtThumb.Contains(m_cpTrackPointX, m_cpTrackPointY); |
| } |
| if (m_iMaxTrackState == CFWL_PartState_Pressed) { |
| DoScroll(FWL_SCBCODE_PageForward, m_fTrackPos); |
| return m_rtThumb.Contains(m_cpTrackPointX, m_cpTrackPointY); |
| } |
| if (m_iMouseWheel) { |
| uint16_t dwCode = |
| m_iMouseWheel < 0 ? FWL_SCBCODE_StepForward : FWL_SCBCODE_StepBackward; |
| DoScroll(dwCode, m_fTrackPos); |
| } |
| return TRUE; |
| } |
| FX_BOOL CFWL_ScrollBarImp::OnScroll(uint32_t dwCode, FX_FLOAT fPos) { |
| FX_BOOL bRet = TRUE; |
| CFWL_EvtScroll ev; |
| ev.m_iScrollCode = dwCode; |
| ev.m_pSrcTarget = m_pInterface; |
| ev.m_fPos = fPos; |
| ev.m_pRet = &bRet; |
| DispatchEvent(&ev); |
| return bRet; |
| } |
| |
| CFWL_ScrollBarImpDelegate::CFWL_ScrollBarImpDelegate(CFWL_ScrollBarImp* pOwner) |
| : m_pOwner(pOwner) {} |
| |
| void CFWL_ScrollBarImpDelegate::OnProcessMessage(CFWL_Message* pMessage) { |
| if (!pMessage) |
| return; |
| |
| CFWL_MessageType dwMsgCode = pMessage->GetClassID(); |
| if (dwMsgCode == CFWL_MessageType::Mouse) { |
| CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage); |
| switch (pMsg->m_dwCmd) { |
| case FWL_MouseCommand::LeftButtonDown: { |
| OnLButtonDown(pMsg->m_dwFlags, pMsg->m_fx, pMsg->m_fy); |
| break; |
| } |
| case FWL_MouseCommand::LeftButtonUp: { |
| OnLButtonUp(pMsg->m_dwFlags, pMsg->m_fx, pMsg->m_fy); |
| break; |
| } |
| case FWL_MouseCommand::Move: { |
| OnMouseMove(pMsg->m_dwFlags, pMsg->m_fx, pMsg->m_fy); |
| break; |
| } |
| case FWL_MouseCommand::Leave: { |
| OnMouseLeave(); |
| break; |
| } |
| default: { |
| break; |
| } |
| } |
| } else if (dwMsgCode == CFWL_MessageType::MouseWheel) { |
| CFWL_MsgMouseWheel* pMsg = static_cast<CFWL_MsgMouseWheel*>(pMessage); |
| OnMouseWheel(pMsg->m_fx, pMsg->m_fy, pMsg->m_dwFlags, pMsg->m_fDeltaX, |
| pMsg->m_fDeltaY); |
| } |
| } |
| |
| void CFWL_ScrollBarImpDelegate::OnDrawWidget(CFX_Graphics* pGraphics, |
| const CFX_Matrix* pMatrix) { |
| m_pOwner->DrawWidget(pGraphics, pMatrix); |
| } |
| |
| void CFWL_ScrollBarImpDelegate::OnLButtonDown(uint32_t dwFlags, |
| FX_FLOAT fx, |
| FX_FLOAT fy) { |
| if (!m_pOwner->IsEnabled()) { |
| return; |
| } |
| m_pOwner->m_bMouseDown = TRUE; |
| m_pOwner->SetGrab(TRUE); |
| m_pOwner->m_cpTrackPointX = fx; |
| m_pOwner->m_cpTrackPointY = fy; |
| m_pOwner->m_fLastTrackPos = m_pOwner->m_fTrackPos; |
| if (m_pOwner->m_rtMinBtn.Contains(fx, fy)) { |
| DoMouseDown(0, m_pOwner->m_rtMinBtn, m_pOwner->m_iMinButtonState, fx, fy); |
| } else { |
| if (m_pOwner->m_rtThumb.Contains(fx, fy)) { |
| DoMouseDown(1, m_pOwner->m_rtThumb, m_pOwner->m_iThumbButtonState, fx, |
| fy); |
| } else { |
| if (m_pOwner->m_rtMaxBtn.Contains(fx, fy)) { |
| DoMouseDown(2, m_pOwner->m_rtMaxBtn, m_pOwner->m_iMaxButtonState, fx, |
| fy); |
| } else { |
| if (m_pOwner->m_rtMinTrack.Contains(fx, fy)) { |
| DoMouseDown(3, m_pOwner->m_rtMinTrack, m_pOwner->m_iMinTrackState, fx, |
| fy); |
| } else { |
| DoMouseDown(4, m_pOwner->m_rtMaxTrack, m_pOwner->m_iMaxTrackState, fx, |
| fy); |
| } |
| } |
| } |
| } |
| if (!m_pOwner->SendEvent()) |
| m_pOwner->m_pTimerInfo = m_pOwner->StartTimer(FWL_SCROLLBAR_Elapse, true); |
| } |
| |
| void CFWL_ScrollBarImpDelegate::OnLButtonUp(uint32_t dwFlags, |
| FX_FLOAT fx, |
| FX_FLOAT fy) { |
| m_pOwner->m_pTimerInfo->StopTimer(); |
| m_pOwner->m_bMouseDown = FALSE; |
| DoMouseUp(0, m_pOwner->m_rtMinBtn, m_pOwner->m_iMinButtonState, fx, fy); |
| DoMouseUp(1, m_pOwner->m_rtThumb, m_pOwner->m_iThumbButtonState, fx, fy); |
| DoMouseUp(2, m_pOwner->m_rtMaxBtn, m_pOwner->m_iMaxButtonState, fx, fy); |
| DoMouseUp(3, m_pOwner->m_rtMinTrack, m_pOwner->m_iMinTrackState, fx, fy); |
| DoMouseUp(4, m_pOwner->m_rtMaxTrack, m_pOwner->m_iMaxTrackState, fx, fy); |
| m_pOwner->SetGrab(FALSE); |
| } |
| void CFWL_ScrollBarImpDelegate::OnMouseMove(uint32_t dwFlags, |
| FX_FLOAT fx, |
| FX_FLOAT fy) { |
| DoMouseMove(0, m_pOwner->m_rtMinBtn, m_pOwner->m_iMinButtonState, fx, fy); |
| DoMouseMove(1, m_pOwner->m_rtThumb, m_pOwner->m_iThumbButtonState, fx, fy); |
| DoMouseMove(2, m_pOwner->m_rtMaxBtn, m_pOwner->m_iMaxButtonState, fx, fy); |
| DoMouseMove(3, m_pOwner->m_rtMinTrack, m_pOwner->m_iMinTrackState, fx, fy); |
| DoMouseMove(4, m_pOwner->m_rtMaxTrack, m_pOwner->m_iMaxTrackState, fx, fy); |
| } |
| void CFWL_ScrollBarImpDelegate::OnMouseLeave() { |
| DoMouseLeave(0, m_pOwner->m_rtMinBtn, m_pOwner->m_iMinButtonState); |
| DoMouseLeave(1, m_pOwner->m_rtThumb, m_pOwner->m_iThumbButtonState); |
| DoMouseLeave(2, m_pOwner->m_rtMaxBtn, m_pOwner->m_iMaxButtonState); |
| DoMouseLeave(3, m_pOwner->m_rtMinTrack, m_pOwner->m_iMinTrackState); |
| DoMouseLeave(4, m_pOwner->m_rtMaxTrack, m_pOwner->m_iMaxTrackState); |
| } |
| void CFWL_ScrollBarImpDelegate::OnMouseWheel(FX_FLOAT fx, |
| FX_FLOAT fy, |
| uint32_t dwFlags, |
| FX_FLOAT fDeltaX, |
| FX_FLOAT fDeltaY) { |
| m_pOwner->m_iMouseWheel = (int32_t)fDeltaX; |
| m_pOwner->SendEvent(); |
| m_pOwner->m_iMouseWheel = 0; |
| } |
| void CFWL_ScrollBarImpDelegate::DoMouseDown(int32_t iItem, |
| const CFX_RectF& rtItem, |
| int32_t& iState, |
| FX_FLOAT fx, |
| FX_FLOAT fy) { |
| if (!rtItem.Contains(fx, fy)) { |
| return; |
| } |
| if (iState == CFWL_PartState_Pressed) { |
| return; |
| } |
| iState = CFWL_PartState_Pressed; |
| m_pOwner->Repaint(&rtItem); |
| } |
| void CFWL_ScrollBarImpDelegate::DoMouseUp(int32_t iItem, |
| const CFX_RectF& rtItem, |
| int32_t& iState, |
| FX_FLOAT fx, |
| FX_FLOAT fy) { |
| int32_t iNewState = |
| rtItem.Contains(fx, fy) ? CFWL_PartState_Hovered : CFWL_PartState_Normal; |
| if (iState == iNewState) { |
| return; |
| } |
| iState = iNewState; |
| m_pOwner->Repaint(&rtItem); |
| m_pOwner->OnScroll(FWL_SCBCODE_EndScroll, m_pOwner->m_fTrackPos); |
| } |
| void CFWL_ScrollBarImpDelegate::DoMouseMove(int32_t iItem, |
| const CFX_RectF& rtItem, |
| int32_t& iState, |
| FX_FLOAT fx, |
| FX_FLOAT fy) { |
| if (!m_pOwner->m_bMouseDown) { |
| int32_t iNewState = rtItem.Contains(fx, fy) ? CFWL_PartState_Hovered |
| : CFWL_PartState_Normal; |
| if (iState == iNewState) { |
| return; |
| } |
| iState = iNewState; |
| m_pOwner->Repaint(&rtItem); |
| } else if ((2 == iItem) && |
| (m_pOwner->m_iThumbButtonState == CFWL_PartState_Pressed)) { |
| FX_FLOAT fPos = m_pOwner->GetTrackPointPos(fx, fy); |
| m_pOwner->m_fTrackPos = fPos; |
| m_pOwner->OnScroll(FWL_SCBCODE_TrackPos, fPos); |
| } |
| } |
| void CFWL_ScrollBarImpDelegate::DoMouseLeave(int32_t iItem, |
| const CFX_RectF& rtItem, |
| int32_t& iState) { |
| if (iState == CFWL_PartState_Normal) { |
| return; |
| } |
| iState = CFWL_PartState_Normal; |
| m_pOwner->Repaint(&rtItem); |
| } |
| void CFWL_ScrollBarImpDelegate::DoMouseHover(int32_t iItem, |
| const CFX_RectF& rtItem, |
| int32_t& iState) { |
| if (iState == CFWL_PartState_Hovered) { |
| return; |
| } |
| iState = CFWL_PartState_Hovered; |
| m_pOwner->Repaint(&rtItem); |
| } |
