// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "xfa/fwl/basewidget/fwl_scrollbarimp.h"
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#include "xfa/fwl/basewidget/ifwl_scrollbar.h"
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#include "xfa/fwl/core/cfwl_message.h"
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#include "xfa/fwl/core/cfwl_themebackground.h"
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#include "xfa/fwl/core/cfwl_themepart.h"
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#include "xfa/fwl/core/fwl_noteimp.h"
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#include "xfa/fwl/core/fwl_widgetimp.h"
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#include "xfa/fwl/core/ifwl_themeprovider.h"
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#define FWL_SCROLLBAR_Elapse 500
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#define FWL_SCROLLBAR_MinThumb 5
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// static
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IFWL_ScrollBar* IFWL_ScrollBar::Create(
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const CFWL_WidgetImpProperties& properties,
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IFWL_Widget* pOuter) {
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IFWL_ScrollBar* pScrollBar = new IFWL_ScrollBar;
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CFWL_ScrollBarImp* pScrollBarImpl = new CFWL_ScrollBarImp(properties, pOuter);
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pScrollBar->SetImpl(pScrollBarImpl);
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pScrollBarImpl->SetInterface(pScrollBar);
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return pScrollBar;
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}
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IFWL_ScrollBar::IFWL_ScrollBar() {}
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FX_BOOL IFWL_ScrollBar::IsVertical() {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->IsVertical();
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}
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FWL_Error IFWL_ScrollBar::GetRange(FX_FLOAT& fMin, FX_FLOAT& fMax) {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->GetRange(fMin, fMax);
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}
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FWL_Error IFWL_ScrollBar::SetRange(FX_FLOAT fMin, FX_FLOAT fMax) {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->SetRange(fMin, fMax);
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}
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FX_FLOAT IFWL_ScrollBar::GetPageSize() {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->GetPageSize();
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}
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FWL_Error IFWL_ScrollBar::SetPageSize(FX_FLOAT fPageSize) {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->SetPageSize(fPageSize);
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}
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FX_FLOAT IFWL_ScrollBar::GetStepSize() {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->GetStepSize();
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}
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FWL_Error IFWL_ScrollBar::SetStepSize(FX_FLOAT fStepSize) {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->SetStepSize(fStepSize);
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}
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FX_FLOAT IFWL_ScrollBar::GetPos() {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->GetPos();
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}
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FWL_Error IFWL_ScrollBar::SetPos(FX_FLOAT fPos) {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->SetPos(fPos);
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}
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FX_FLOAT IFWL_ScrollBar::GetTrackPos() {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->GetTrackPos();
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}
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FWL_Error IFWL_ScrollBar::SetTrackPos(FX_FLOAT fTrackPos) {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->SetTrackPos(fTrackPos);
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}
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FX_BOOL IFWL_ScrollBar::DoScroll(uint32_t dwCode, FX_FLOAT fPos) {
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return static_cast<CFWL_ScrollBarImp*>(GetImpl())->DoScroll(dwCode, fPos);
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}
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CFWL_ScrollBarImp::CFWL_ScrollBarImp(const CFWL_WidgetImpProperties& properties,
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IFWL_Widget* pOuter)
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: CFWL_WidgetImp(properties, pOuter),
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m_pTimerInfo(nullptr),
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m_fRangeMin(0),
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m_fRangeMax(-1),
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m_fPageSize(0),
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m_fStepSize(0),
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m_fPos(0),
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m_fTrackPos(0),
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m_iMinButtonState(CFWL_PartState_Normal),
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m_iMaxButtonState(CFWL_PartState_Normal),
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m_iThumbButtonState(CFWL_PartState_Normal),
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m_iMinTrackState(CFWL_PartState_Normal),
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m_iMaxTrackState(CFWL_PartState_Normal),
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m_fLastTrackPos(0),
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m_cpTrackPointX(0),
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m_cpTrackPointY(0),
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m_iMouseWheel(0),
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m_bTrackMouseLeave(FALSE),
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m_bMouseHover(FALSE),
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m_bMouseDown(FALSE),
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m_bRepaintThumb(FALSE),
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m_fButtonLen(0),
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m_bMinSize(FALSE),
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m_bCustomLayout(FALSE),
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m_fMinThumb(FWL_SCROLLBAR_MinThumb) {
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m_rtClient.Reset();
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m_rtThumb.Reset();
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m_rtMinBtn.Reset();
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m_rtMaxBtn.Reset();
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m_rtMinTrack.Reset();
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m_rtMaxTrack.Reset();
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}
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CFWL_ScrollBarImp::~CFWL_ScrollBarImp() {}
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FWL_Error CFWL_ScrollBarImp::GetClassName(CFX_WideString& wsClass) const {
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wsClass = FWL_CLASS_ScrollBar;
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return FWL_Error::Succeeded;
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}
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FWL_Type CFWL_ScrollBarImp::GetClassID() const {
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return FWL_Type::ScrollBar;
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}
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FWL_Error CFWL_ScrollBarImp::Initialize() {
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if (CFWL_WidgetImp::Initialize() != FWL_Error::Succeeded)
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return FWL_Error::Indefinite;
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m_pDelegate = new CFWL_ScrollBarImpDelegate(this);
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return FWL_Error::Succeeded;
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}
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FWL_Error CFWL_ScrollBarImp::Finalize() {
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delete m_pDelegate;
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m_pDelegate = nullptr;
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return CFWL_WidgetImp::Finalize();
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}
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FWL_Error CFWL_ScrollBarImp::GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize) {
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if (bAutoSize) {
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rect.Set(0, 0, 0, 0);
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FX_FLOAT* pfMinWidth = static_cast<FX_FLOAT*>(
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GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth));
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if (!pfMinWidth)
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return FWL_Error::Indefinite;
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if (IsVertical()) {
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rect.Set(0, 0, (*pfMinWidth), (*pfMinWidth) * 3);
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} else {
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rect.Set(0, 0, (*pfMinWidth) * 3, (*pfMinWidth));
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}
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CFWL_WidgetImp::GetWidgetRect(rect, TRUE);
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} else {
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rect = m_pProperties->m_rtWidget;
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}
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return FWL_Error::Succeeded;
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}
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FWL_Error CFWL_ScrollBarImp::Update() {
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if (IsLocked()) {
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return FWL_Error::Indefinite;
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}
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if (!m_pProperties->m_pThemeProvider) {
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m_pProperties->m_pThemeProvider = GetAvailableTheme();
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}
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Layout();
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return FWL_Error::Succeeded;
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}
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FWL_Error CFWL_ScrollBarImp::DrawWidget(CFX_Graphics* pGraphics,
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const CFX_Matrix* pMatrix) {
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if (!pGraphics)
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return FWL_Error::Indefinite;
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if (!m_pProperties->m_pThemeProvider)
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return FWL_Error::Indefinite;
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IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
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if (HasBorder()) {
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DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix);
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}
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if (HasEdge()) {
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DrawEdge(pGraphics, CFWL_Part::Edge, pTheme, pMatrix);
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}
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DrawTrack(pGraphics, pTheme, TRUE, pMatrix);
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DrawTrack(pGraphics, pTheme, FALSE, pMatrix);
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DrawArrowBtn(pGraphics, pTheme, TRUE, pMatrix);
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DrawArrowBtn(pGraphics, pTheme, FALSE, pMatrix);
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DrawThumb(pGraphics, pTheme, pMatrix);
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return FWL_Error::Succeeded;
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}
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inline FX_BOOL CFWL_ScrollBarImp::IsVertical() {
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return m_pProperties->m_dwStyleExes & FWL_STYLEEXT_SCB_Vert;
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}
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FWL_Error CFWL_ScrollBarImp::GetRange(FX_FLOAT& fMin, FX_FLOAT& fMax) {
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fMin = m_fRangeMin;
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fMax = m_fRangeMax;
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return FWL_Error::Succeeded;
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}
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FWL_Error CFWL_ScrollBarImp::SetRange(FX_FLOAT fMin, FX_FLOAT fMax) {
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m_fRangeMin = fMin;
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m_fRangeMax = fMax;
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return FWL_Error::Succeeded;
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}
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FX_FLOAT CFWL_ScrollBarImp::GetPageSize() {
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return m_fPageSize;
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}
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FWL_Error CFWL_ScrollBarImp::SetPageSize(FX_FLOAT fPageSize) {
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m_fPageSize = fPageSize;
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return FWL_Error::Succeeded;
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}
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FX_FLOAT CFWL_ScrollBarImp::GetStepSize() {
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return m_fStepSize;
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}
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FWL_Error CFWL_ScrollBarImp::SetStepSize(FX_FLOAT fStepSize) {
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m_fStepSize = fStepSize;
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return FWL_Error::Succeeded;
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}
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FX_FLOAT CFWL_ScrollBarImp::GetPos() {
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return m_fPos;
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}
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FWL_Error CFWL_ScrollBarImp::SetPos(FX_FLOAT fPos) {
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m_fPos = fPos;
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return FWL_Error::Succeeded;
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}
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FX_FLOAT CFWL_ScrollBarImp::GetTrackPos() {
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return m_fTrackPos;
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}
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FWL_Error CFWL_ScrollBarImp::SetTrackPos(FX_FLOAT fTrackPos) {
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m_fTrackPos = fTrackPos;
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CalcThumbButtonRect(m_rtThumb);
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CalcMinTrackRect(m_rtMinTrack);
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CalcMaxTrackRect(m_rtMaxTrack);
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return FWL_Error::Succeeded;
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}
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FX_BOOL CFWL_ScrollBarImp::DoScroll(uint32_t dwCode, FX_FLOAT fPos) {
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switch (dwCode) {
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case FWL_SCBCODE_Min:
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case FWL_SCBCODE_Max:
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case FWL_SCBCODE_PageBackward:
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case FWL_SCBCODE_PageForward:
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case FWL_SCBCODE_StepBackward:
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break;
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case FWL_SCBCODE_StepForward:
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break;
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case FWL_SCBCODE_Pos:
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case FWL_SCBCODE_TrackPos:
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case FWL_SCBCODE_EndScroll:
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break;
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default: { return FALSE; }
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}
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return OnScroll(dwCode, fPos);
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}
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void CFWL_ScrollBarImp::Run(IFWL_TimerInfo* pTimerInfo) {
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if (m_pTimerInfo)
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m_pTimerInfo->StopTimer();
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if (!SendEvent())
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m_pTimerInfo = StartTimer(0, true);
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}
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FWL_Error CFWL_ScrollBarImp::SetOuter(IFWL_Widget* pOuter) {
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m_pOuter = pOuter;
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return FWL_Error::Succeeded;
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}
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void CFWL_ScrollBarImp::DrawTrack(CFX_Graphics* pGraphics,
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IFWL_ThemeProvider* pTheme,
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FX_BOOL bLower,
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const CFX_Matrix* pMatrix) {
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CFWL_ThemeBackground param;
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param.m_pWidget = m_pInterface;
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param.m_iPart = bLower ? CFWL_Part::LowerTrack : CFWL_Part::UpperTrack;
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param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
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? CFWL_PartState_Disabled
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: (bLower ? m_iMinTrackState : m_iMaxTrackState);
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param.m_pGraphics = pGraphics;
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param.m_matrix.Concat(*pMatrix);
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param.m_rtPart = bLower ? m_rtMinTrack : m_rtMaxTrack;
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pTheme->DrawBackground(¶m);
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}
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void CFWL_ScrollBarImp::DrawArrowBtn(CFX_Graphics* pGraphics,
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IFWL_ThemeProvider* pTheme,
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FX_BOOL bMinBtn,
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const CFX_Matrix* pMatrix) {
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CFWL_ThemeBackground param;
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param.m_pWidget = m_pInterface;
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param.m_iPart = bMinBtn ? CFWL_Part::ForeArrow : CFWL_Part::BackArrow;
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param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
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? CFWL_PartState_Disabled
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: (bMinBtn ? m_iMinButtonState : m_iMaxButtonState);
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param.m_pGraphics = pGraphics;
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param.m_matrix.Concat(*pMatrix);
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param.m_rtPart = bMinBtn ? m_rtMinBtn : m_rtMaxBtn;
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if (param.m_rtPart.height > 0 && param.m_rtPart.width > 0) {
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pTheme->DrawBackground(¶m);
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}
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}
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void CFWL_ScrollBarImp::DrawThumb(CFX_Graphics* pGraphics,
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IFWL_ThemeProvider* pTheme,
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const CFX_Matrix* pMatrix) {
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CFWL_ThemeBackground param;
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param.m_pWidget = m_pInterface;
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param.m_iPart = CFWL_Part::Thumb;
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param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
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? CFWL_PartState_Disabled
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: m_iThumbButtonState;
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param.m_pGraphics = pGraphics;
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param.m_matrix.Concat(*pMatrix);
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param.m_rtPart = m_rtThumb;
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pTheme->DrawBackground(¶m);
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}
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void CFWL_ScrollBarImp::Layout() {
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IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
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CFWL_ThemePart part;
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part.m_pWidget = m_pInterface;
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m_fMinThumb = *static_cast<FX_FLOAT*>(
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pTheme->GetCapacity(&part, CFWL_WidgetCapacity::Size));
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m_bCustomLayout = pTheme->IsCustomizedLayout(m_pInterface);
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GetClientRect(m_rtClient);
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CalcButtonLen();
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CalcMinButtonRect(m_rtMinBtn);
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CalcMaxButtonRect(m_rtMaxBtn);
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CalcThumbButtonRect(m_rtThumb);
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CalcMinTrackRect(m_rtMinTrack);
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CalcMaxTrackRect(m_rtMaxTrack);
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}
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void CFWL_ScrollBarImp::CalcButtonLen() {
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m_fButtonLen = IsVertical() ? m_rtClient.width : m_rtClient.height;
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FX_FLOAT fLength = IsVertical() ? m_rtClient.height : m_rtClient.width;
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if (fLength < m_fButtonLen * 2) {
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m_fButtonLen = fLength / 2;
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m_bMinSize = TRUE;
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} else {
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m_bMinSize = FALSE;
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}
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}
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void CFWL_ScrollBarImp::CalcMinButtonRect(CFX_RectF& rect) {
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if (m_bCustomLayout) {
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IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
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CFWL_ThemePart pPart;
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pPart.m_rtPart = m_rtMinBtn;
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pPart.m_pWidget = m_pInterface;
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pPart.m_iPart = CFWL_Part::ForeArrow;
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pPart.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
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? CFWL_PartState_Disabled
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: m_iMinButtonState;
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pTheme->GetPartRect(&pPart, rect);
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} else {
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rect.left = m_rtClient.left;
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rect.top = m_rtClient.top;
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rect.width = IsVertical() ? m_rtClient.width : m_fButtonLen;
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rect.height = IsVertical() ? m_fButtonLen : m_rtClient.height;
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}
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}
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void CFWL_ScrollBarImp::CalcMaxButtonRect(CFX_RectF& rect) {
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if (m_bCustomLayout) {
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IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
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CFWL_ThemePart pPart;
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pPart.m_rtPart = m_rtMaxBtn;
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pPart.m_pWidget = m_pInterface;
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pPart.m_iPart = CFWL_Part::BackArrow;
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pPart.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
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? CFWL_PartState_Disabled
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: m_iMaxButtonState;
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pTheme->GetPartRect(&pPart, rect);
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} else {
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rect.left =
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IsVertical() ? m_rtClient.left : m_rtClient.right() - m_fButtonLen;
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rect.top =
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IsVertical() ? m_rtClient.bottom() - m_fButtonLen : m_rtClient.top;
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rect.width = IsVertical() ? m_rtClient.width : m_fButtonLen;
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rect.height = IsVertical() ? m_fButtonLen : m_rtClient.height;
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}
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}
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void CFWL_ScrollBarImp::CalcThumbButtonRect(CFX_RectF& rect) {
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if (!IsEnabled()) {
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m_rtThumb.Reset();
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return;
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}
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if (m_bMinSize) {
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m_rtThumb.Empty();
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return;
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}
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FX_FLOAT fRange = m_fRangeMax - m_fRangeMin;
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memset(&rect, 0, sizeof(CFX_Rect));
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if (fRange < 0) {
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if (IsVertical()) {
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rect.Set(m_rtClient.left, m_rtMaxBtn.bottom(), m_rtClient.width, 0);
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} else {
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rect.Set(m_rtMaxBtn.right(), m_rtClient.top, 0, m_rtClient.height);
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}
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return;
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}
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CFX_RectF rtClient = m_rtClient;
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FX_FLOAT fLength = IsVertical() ? rtClient.height : rtClient.width;
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FX_FLOAT fSize = m_fButtonLen;
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if (m_bCustomLayout) {
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if (IsVertical()) {
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fLength = fLength - m_rtMinBtn.height - m_rtMaxBtn.height;
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if (fLength < m_rtMinBtn.height || fLength < m_rtMaxBtn.height) {
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fLength = 0.0f;
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}
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} else {
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fLength = fLength - m_rtMinBtn.width - m_rtMaxBtn.width;
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if (fLength < m_rtMinBtn.width || fLength < m_rtMaxBtn.width) {
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fLength = 0.0f;
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}
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}
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} else {
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fLength -= fSize * 2.0f;
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if (fLength < fSize) {
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fLength = 0.0f;
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}
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}
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FX_FLOAT fThumbSize = fLength * fLength / (fRange + fLength);
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if (fThumbSize < m_fMinThumb) {
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fThumbSize = m_fMinThumb;
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}
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FX_FLOAT fDiff = fLength - fThumbSize;
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if (fDiff < 0.0f) {
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fDiff = 0.0f;
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}
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FX_FLOAT fTrackPos = m_fTrackPos;
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if (fTrackPos > m_fRangeMax) {
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fTrackPos = m_fRangeMax;
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}
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if (fTrackPos < m_fRangeMin) {
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fTrackPos = m_fRangeMin;
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}
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if (!fRange)
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return;
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if (m_bCustomLayout) {
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FX_FLOAT iPos = fDiff * (fTrackPos - m_fRangeMin) / fRange;
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rect.left = rtClient.left;
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if (!IsVertical()) {
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if ((m_rtMinBtn.right() == m_rtMaxBtn.left && m_rtMinBtn.width > 0 &&
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m_rtMaxBtn.width > 0) ||
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(0 == m_rtMinBtn.width && 0 == m_rtMaxBtn.width)) {
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rect.left += iPos;
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} else {
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rect.left += m_rtMinBtn.right() + iPos;
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}
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}
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rect.top = rtClient.top;
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if (IsVertical()) {
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if ((m_rtMinBtn.bottom() == m_rtMaxBtn.top && m_rtMinBtn.height > 0 &&
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m_rtMaxBtn.height > 0) ||
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(0 == m_rtMinBtn.height && 0 == m_rtMaxBtn.height)) {
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rect.top += iPos;
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} else {
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rect.top += m_rtMinBtn.bottom() + iPos;
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}
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}
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rect.width = IsVertical() ? rtClient.width : fThumbSize;
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rect.height = IsVertical() ? fThumbSize : rtClient.height;
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} else {
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FX_FLOAT iPos = fSize + fDiff * (fTrackPos - m_fRangeMin) / fRange;
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rect.left = rtClient.left;
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if (!IsVertical()) {
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rect.left += iPos;
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}
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rect.top = rtClient.top;
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if (IsVertical()) {
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rect.top += iPos;
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}
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rect.width = IsVertical() ? rtClient.width : fThumbSize;
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rect.height = IsVertical() ? fThumbSize : rtClient.height;
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}
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}
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void CFWL_ScrollBarImp::CalcMinTrackRect(CFX_RectF& rect) {
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if (m_bMinSize) {
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rect.Empty();
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return;
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}
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FX_FLOAT fBottom = m_rtThumb.bottom();
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FX_FLOAT fRight = m_rtThumb.right();
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FX_FLOAT ix = (m_rtThumb.left + fRight) / 2;
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FX_FLOAT iy = (m_rtThumb.top + fBottom) / 2;
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rect.left = m_rtClient.left;
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rect.top = m_rtClient.top;
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FX_BOOL bVertical = IsVertical();
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rect.width = bVertical ? m_rtClient.width : ix;
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rect.height = bVertical ? iy : m_rtClient.height;
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if (m_bCustomLayout) {
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if (bVertical) {
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if (0 == m_rtMinBtn.height && 0 == m_rtMaxBtn.height) {
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rect.top = m_rtClient.top;
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} else if (m_rtMinBtn.top < m_rtThumb.top) {
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rect.top = m_rtMinBtn.bottom();
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rect.height -= (m_rtMinBtn.bottom() - m_rtClient.top);
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}
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} else {
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if (0 == m_rtMinBtn.width && 0 == m_rtMaxBtn.width) {
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rect.left = m_rtClient.left;
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} else if (m_rtMinBtn.left < m_rtThumb.left) {
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rect.left = m_rtMinBtn.right();
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rect.width -= (m_rtMinBtn.right() - m_rtClient.left);
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}
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}
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}
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}
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void CFWL_ScrollBarImp::CalcMaxTrackRect(CFX_RectF& rect) {
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if (m_bMinSize) {
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rect.Empty();
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return;
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}
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FX_FLOAT ix = (m_rtThumb.left + m_rtThumb.right()) / 2;
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FX_FLOAT iy = (m_rtThumb.top + m_rtThumb.bottom()) / 2;
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FX_BOOL bVertical = IsVertical();
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rect.left = bVertical ? m_rtClient.left : ix;
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rect.top = bVertical ? iy : m_rtClient.top;
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rect.width = bVertical ? m_rtClient.width : m_rtClient.right() - ix;
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rect.height = bVertical ? m_rtClient.bottom() - iy : m_rtClient.height;
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if (m_bCustomLayout) {
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if (bVertical) {
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if (m_rtMinBtn.top > m_rtThumb.top && m_rtMinBtn.height > 0 &&
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m_rtMaxBtn.height > 0) {
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rect.height -= (m_rtClient.bottom() - m_rtMinBtn.top);
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} else if (m_rtMinBtn.height > 0 && m_rtMaxBtn.height > 0) {
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rect.height -= (m_rtClient.bottom() - m_rtMaxBtn.top);
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}
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} else {
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if (m_rtMinBtn.left > m_rtThumb.left && m_rtMinBtn.width > 0 &&
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m_rtMaxBtn.width > 0) {
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rect.width -= (m_rtClient.right() - m_rtMinBtn.left);
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} 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);
|
}
|
