diff options
Diffstat (limited to 'xfa/fwl/basewidget/fwl_scrollbarimp.cpp')
| -rw-r--r-- | xfa/fwl/basewidget/fwl_scrollbarimp.cpp | 805 |
1 files changed, 805 insertions, 0 deletions
diff --git a/xfa/fwl/basewidget/fwl_scrollbarimp.cpp b/xfa/fwl/basewidget/fwl_scrollbarimp.cpp new file mode 100644 index 0000000000..86c78890d8 --- /dev/null +++ b/xfa/fwl/basewidget/fwl_scrollbarimp.cpp @@ -0,0 +1,805 @@ +// 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/core/fwl_noteimp.h" +#include "xfa/fwl/core/fwl_targetimp.h" +#include "xfa/fwl/core/fwl_widgetimp.h" +#include "xfa/include/fwl/basewidget/fwl_scrollbar.h" +#include "xfa/include/fwl/core/fwl_theme.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_ERR IFWL_ScrollBar::GetRange(FX_FLOAT& fMin, FX_FLOAT& fMax) { + return static_cast<CFWL_ScrollBarImp*>(GetImpl())->GetRange(fMin, fMax); +} +FWL_ERR 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_ERR 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_ERR 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_ERR 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_ERR IFWL_ScrollBar::SetTrackPos(FX_FLOAT fTrackPos) { + return static_cast<CFWL_ScrollBarImp*>(GetImpl())->SetTrackPos(fTrackPos); +} +FX_BOOL IFWL_ScrollBar::DoScroll(FX_DWORD 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_hTimer(nullptr), + m_fRangeMin(0), + m_fRangeMax(-1), + m_fPageSize(0), + m_fStepSize(0), + m_fPos(0), + m_fTrackPos(0), + m_iMinButtonState(FWL_PARTSTATE_SCB_Normal), + m_iMaxButtonState(FWL_PARTSTATE_SCB_Normal), + m_iThumbButtonState(FWL_PARTSTATE_SCB_Normal), + m_iMinTrackState(FWL_PARTSTATE_SCB_Normal), + m_iMaxTrackState(FWL_PARTSTATE_SCB_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_ERR CFWL_ScrollBarImp::GetClassName(CFX_WideString& wsClass) const { + wsClass = FWL_CLASS_ScrollBar; + return FWL_ERR_Succeeded; +} +FX_DWORD CFWL_ScrollBarImp::GetClassID() const { + return FWL_CLASSHASH_ScrollBar; +} +FWL_ERR CFWL_ScrollBarImp::Initialize() { + if (CFWL_WidgetImp::Initialize() != FWL_ERR_Succeeded) + return FWL_ERR_Indefinite; + m_pDelegate = new CFWL_ScrollBarImpDelegate(this); + return FWL_ERR_Succeeded; +} +FWL_ERR CFWL_ScrollBarImp::Finalize() { + delete m_pDelegate; + m_pDelegate = nullptr; + return CFWL_WidgetImp::Finalize(); +} +FWL_ERR 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(FWL_WGTCAPACITY_ScrollBarWidth)); + if (!pfMinWidth) + return FWL_ERR_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_ERR_Succeeded; +} +FWL_ERR CFWL_ScrollBarImp::Update() { + if (IsLocked()) { + return FWL_ERR_Indefinite; + } + if (!m_pProperties->m_pThemeProvider) { + m_pProperties->m_pThemeProvider = GetAvailableTheme(); + } + Layout(); + return FWL_ERR_Succeeded; +} +FWL_ERR CFWL_ScrollBarImp::DrawWidget(CFX_Graphics* pGraphics, + const CFX_Matrix* pMatrix) { + if (!pGraphics) + return FWL_ERR_Indefinite; + if (!m_pProperties->m_pThemeProvider) + return FWL_ERR_Indefinite; + IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider; + if (HasBorder()) { + DrawBorder(pGraphics, FWL_PART_SCB_Border, pTheme, pMatrix); + } + if (HasEdge()) { + DrawEdge(pGraphics, FWL_PART_SCB_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_ERR_Succeeded; +} +inline FX_BOOL CFWL_ScrollBarImp::IsVertical() { + return m_pProperties->m_dwStyleExes & FWL_STYLEEXT_SCB_Vert; +} +FWL_ERR CFWL_ScrollBarImp::GetRange(FX_FLOAT& fMin, FX_FLOAT& fMax) { + fMin = m_fRangeMin; + fMax = m_fRangeMax; + return FWL_ERR_Succeeded; +} +FWL_ERR CFWL_ScrollBarImp::SetRange(FX_FLOAT fMin, FX_FLOAT fMax) { + m_fRangeMin = fMin; + m_fRangeMax = fMax; + return FWL_ERR_Succeeded; +} +FX_FLOAT CFWL_ScrollBarImp::GetPageSize() { + return m_fPageSize; +} +FWL_ERR CFWL_ScrollBarImp::SetPageSize(FX_FLOAT fPageSize) { + m_fPageSize = fPageSize; + return FWL_ERR_Succeeded; +} +FX_FLOAT CFWL_ScrollBarImp::GetStepSize() { + return m_fStepSize; +} +FWL_ERR CFWL_ScrollBarImp::SetStepSize(FX_FLOAT fStepSize) { + m_fStepSize = fStepSize; + return FWL_ERR_Succeeded; +} +FX_FLOAT CFWL_ScrollBarImp::GetPos() { + return m_fPos; +} +FWL_ERR CFWL_ScrollBarImp::SetPos(FX_FLOAT fPos) { + m_fPos = fPos; + return FWL_ERR_Succeeded; +} +FX_FLOAT CFWL_ScrollBarImp::GetTrackPos() { + return m_fTrackPos; +} +FWL_ERR CFWL_ScrollBarImp::SetTrackPos(FX_FLOAT fTrackPos) { + m_fTrackPos = fTrackPos; + CalcThumbButtonRect(m_rtThumb); + CalcMinTrackRect(m_rtMinTrack); + CalcMaxTrackRect(m_rtMaxTrack); + return FWL_ERR_Succeeded; +} +FX_BOOL CFWL_ScrollBarImp::DoScroll(FX_DWORD 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); +} +int32_t CFWL_ScrollBarImp::Run(FWL_HTIMER hTimer) { + if (m_hTimer) { + FWL_StopTimer(m_hTimer); + } + if (!SendEvent()) { + m_hTimer = FWL_StartTimer(this, 0); + } + return 1; +} +FWL_ERR CFWL_ScrollBarImp::SetOuter(IFWL_Widget* pOuter) { + m_pOuter = pOuter; + return FWL_ERR_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 ? FWL_PART_SCB_LowerTrack : FWL_PART_SCB_UpperTrack; + param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) + ? FWL_PARTSTATE_SCB_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 ? FWL_PART_SCB_ForeArrow : FWL_PART_SCB_BackArrow; + param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) + ? FWL_PARTSTATE_SCB_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) { + if (!IsEnabled()) { + } + CFWL_ThemeBackground param; + param.m_pWidget = m_pInterface; + param.m_iPart = FWL_PART_SCB_Thumb; + param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) + ? FWL_PARTSTATE_SCB_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, FWL_CAPACITY_SCB_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 = FWL_PART_SCB_ForeArrow; + pPart.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) + ? FWL_PARTSTATE_SCB_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 = FWL_PART_SCB_BackArrow; + pPart.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) + ? FWL_PARTSTATE_SCB_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 == FWL_PARTSTATE_SCB_Pressed) { + DoScroll(FWL_SCBCODE_StepBackward, m_fTrackPos); + return FALSE; + } + if (m_iMaxButtonState == FWL_PARTSTATE_SCB_Pressed) { + DoScroll(FWL_SCBCODE_StepForward, m_fTrackPos); + return FALSE; + } + if (m_iMinTrackState == FWL_PARTSTATE_SCB_Pressed) { + DoScroll(FWL_SCBCODE_PageBackward, m_fTrackPos); + return m_rtThumb.Contains(m_cpTrackPointX, m_cpTrackPointY); + } + if (m_iMaxTrackState == FWL_PARTSTATE_SCB_Pressed) { + DoScroll(FWL_SCBCODE_PageForward, m_fTrackPos); + return m_rtThumb.Contains(m_cpTrackPointX, m_cpTrackPointY); + } + if (m_iMouseWheel) { + FX_WORD dwCode = + m_iMouseWheel < 0 ? FWL_SCBCODE_StepForward : FWL_SCBCODE_StepBackward; + DoScroll(dwCode, m_fTrackPos); + } + return TRUE; +} +FX_BOOL CFWL_ScrollBarImp::OnScroll(FX_DWORD 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) {} +int32_t CFWL_ScrollBarImpDelegate::OnProcessMessage(CFWL_Message* pMessage) { + if (!pMessage) + return 0; + int32_t iRet = 1; + FX_DWORD dwMsgCode = pMessage->GetClassID(); + if (dwMsgCode == FWL_MSGHASH_Mouse) { + CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage); + FX_DWORD dwCmd = pMsg->m_dwCmd; + switch (dwCmd) { + case FWL_MSGMOUSECMD_LButtonDown: { + OnLButtonDown(pMsg->m_dwFlags, pMsg->m_fx, pMsg->m_fy); + break; + } + case FWL_MSGMOUSECMD_LButtonUp: { + OnLButtonUp(pMsg->m_dwFlags, pMsg->m_fx, pMsg->m_fy); + break; + } + case FWL_MSGMOUSECMD_MouseMove: { + OnMouseMove(pMsg->m_dwFlags, pMsg->m_fx, pMsg->m_fy); + break; + } + case FWL_MSGMOUSECMD_MouseLeave: { + OnMouseLeave(); + break; + } + default: { iRet = 0; } + } + } else if (dwMsgCode == FWL_MSGHASH_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); + } else { + iRet = 0; + } + return iRet; +} +FWL_ERR CFWL_ScrollBarImpDelegate::OnDrawWidget(CFX_Graphics* pGraphics, + const CFX_Matrix* pMatrix) { + return m_pOwner->DrawWidget(pGraphics, pMatrix); +} +void CFWL_ScrollBarImpDelegate::OnLButtonDown(FX_DWORD 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_hTimer = FWL_StartTimer(m_pOwner, FWL_SCROLLBAR_Elapse); + } +} +void CFWL_ScrollBarImpDelegate::OnLButtonUp(FX_DWORD dwFlags, + FX_FLOAT fx, + FX_FLOAT fy) { + FWL_StopTimer(m_pOwner->m_hTimer); + 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(FX_DWORD 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, + FX_DWORD 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 == FWL_PARTSTATE_SCB_Pressed) { + return; + } + iState = FWL_PARTSTATE_SCB_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) ? FWL_PARTSTATE_SCB_Hovered + : FWL_PARTSTATE_SCB_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) ? FWL_PARTSTATE_SCB_Hovered + : FWL_PARTSTATE_SCB_Normal; + if (iState == iNewState) { + return; + } + iState = iNewState; + m_pOwner->Repaint(&rtItem); + } else if ((2 == iItem) && + (m_pOwner->m_iThumbButtonState == FWL_PARTSTATE_SCB_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 == FWL_PARTSTATE_SCB_Normal) { + return; + } + iState = FWL_PARTSTATE_SCB_Normal; + m_pOwner->Repaint(&rtItem); +} +void CFWL_ScrollBarImpDelegate::DoMouseHover(int32_t iItem, + const CFX_RectF& rtItem, + int32_t& iState) { + if (iState == FWL_PARTSTATE_SCB_Hovered) { + return; + } + iState = FWL_PARTSTATE_SCB_Hovered; + m_pOwner->Repaint(&rtItem); +} |