// 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/src/foxitlib.h" | |
#include "xfa/src/fwl/src/core/include/fwl_targetimp.h" | |
#include "xfa/src/fwl/src/core/include/fwl_noteimp.h" | |
#include "xfa/src/fwl/src/core/include/fwl_widgetimp.h" | |
#include "xfa/src/fwl/src/basewidget/include/fwl_scrollbarimp.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); | |
} |