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Unified Diff: xfa/fwl/core/cfwl_scrollbar.cpp

Issue 2559173002: Move xfa/fwl/core to xfa/fwl. (Closed)
Patch Set: Created 4 years ago
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Index: xfa/fwl/core/cfwl_scrollbar.cpp
diff --git a/xfa/fwl/core/cfwl_scrollbar.cpp b/xfa/fwl/core/cfwl_scrollbar.cpp
deleted file mode 100644
index 6c2ad996015582b177e3ca0179182b52354c08ae..0000000000000000000000000000000000000000
--- a/xfa/fwl/core/cfwl_scrollbar.cpp
+++ /dev/null
@@ -1,503 +0,0 @@
-// 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/core/cfwl_scrollbar.h"
-
-#include <algorithm>
-#include <memory>
-#include <utility>
-
-#include "third_party/base/ptr_util.h"
-#include "xfa/fwl/core/cfwl_msgmouse.h"
-#include "xfa/fwl/core/cfwl_msgmousewheel.h"
-#include "xfa/fwl/core/cfwl_notedriver.h"
-#include "xfa/fwl/core/cfwl_themebackground.h"
-#include "xfa/fwl/core/cfwl_themepart.h"
-#include "xfa/fwl/core/cfwl_timerinfo.h"
-#include "xfa/fwl/core/ifwl_themeprovider.h"
-
-#define FWL_SCROLLBAR_Elapse 500
-#define FWL_SCROLLBAR_MinThumb 5
-
-CFWL_ScrollBar::CFWL_ScrollBar(
- const CFWL_App* app,
- std::unique_ptr<CFWL_WidgetProperties> properties,
- CFWL_Widget* pOuter)
- : CFWL_Widget(app, std::move(properties), pOuter),
- m_pTimerInfo(nullptr),
- m_fRangeMin(0),
- m_fRangeMax(-1),
- m_fPageSize(0),
- m_fStepSize(0),
- m_fPos(0),
- m_fTrackPos(0),
- m_iMinButtonState(CFWL_PartState_Normal),
- m_iMaxButtonState(CFWL_PartState_Normal),
- m_iThumbButtonState(CFWL_PartState_Normal),
- m_iMinTrackState(CFWL_PartState_Normal),
- m_iMaxTrackState(CFWL_PartState_Normal),
- m_fLastTrackPos(0),
- m_cpTrackPointX(0),
- m_cpTrackPointY(0),
- m_iMouseWheel(0),
- m_bMouseDown(false),
- m_fButtonLen(0),
- m_bMinSize(false),
- m_fMinThumb(FWL_SCROLLBAR_MinThumb),
- m_Timer(this) {
- m_rtClient.Reset();
- m_rtThumb.Reset();
- m_rtMinBtn.Reset();
- m_rtMaxBtn.Reset();
- m_rtMinTrack.Reset();
- m_rtMaxTrack.Reset();
-}
-
-CFWL_ScrollBar::~CFWL_ScrollBar() {}
-
-FWL_Type CFWL_ScrollBar::GetClassID() const {
- return FWL_Type::ScrollBar;
-}
-
-void CFWL_ScrollBar::Update() {
- if (IsLocked())
- return;
- if (!m_pProperties->m_pThemeProvider)
- m_pProperties->m_pThemeProvider = GetAvailableTheme();
-
- Layout();
-}
-
-void CFWL_ScrollBar::DrawWidget(CFX_Graphics* pGraphics,
- const CFX_Matrix* pMatrix) {
- if (!pGraphics)
- return;
- if (!m_pProperties->m_pThemeProvider)
- return;
-
- IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
- if (HasBorder())
- DrawBorder(pGraphics, CFWL_Part::Border, pTheme, pMatrix);
- if (HasEdge())
- DrawEdge(pGraphics, CFWL_Part::Edge, pTheme, pMatrix);
- DrawTrack(pGraphics, pTheme, true, pMatrix);
- DrawTrack(pGraphics, pTheme, false, pMatrix);
- DrawArrowBtn(pGraphics, pTheme, true, pMatrix);
- DrawArrowBtn(pGraphics, pTheme, false, pMatrix);
- DrawThumb(pGraphics, pTheme, pMatrix);
-}
-
-void CFWL_ScrollBar::SetTrackPos(FX_FLOAT fTrackPos) {
- m_fTrackPos = fTrackPos;
- CalcThumbButtonRect(m_rtThumb);
- CalcMinTrackRect(m_rtMinTrack);
- CalcMaxTrackRect(m_rtMaxTrack);
-}
-
-bool CFWL_ScrollBar::DoScroll(CFWL_EvtScroll::Code dwCode, FX_FLOAT fPos) {
- if (dwCode == CFWL_EvtScroll::Code::None)
- return false;
- return OnScroll(dwCode, fPos);
-}
-
-void CFWL_ScrollBar::DrawTrack(CFX_Graphics* pGraphics,
- IFWL_ThemeProvider* pTheme,
- bool bLower,
- const CFX_Matrix* pMatrix) {
- CFWL_ThemeBackground param;
- param.m_pWidget = this;
- param.m_iPart = bLower ? CFWL_Part::LowerTrack : CFWL_Part::UpperTrack;
- param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
- ? CFWL_PartState_Disabled
- : (bLower ? m_iMinTrackState : m_iMaxTrackState);
- param.m_pGraphics = pGraphics;
- param.m_matrix.Concat(*pMatrix);
- param.m_rtPart = bLower ? m_rtMinTrack : m_rtMaxTrack;
- pTheme->DrawBackground(&param);
-}
-
-void CFWL_ScrollBar::DrawArrowBtn(CFX_Graphics* pGraphics,
- IFWL_ThemeProvider* pTheme,
- bool bMinBtn,
- const CFX_Matrix* pMatrix) {
- CFWL_ThemeBackground param;
- param.m_pWidget = this;
- param.m_iPart = bMinBtn ? CFWL_Part::ForeArrow : CFWL_Part::BackArrow;
- param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
- ? CFWL_PartState_Disabled
- : (bMinBtn ? m_iMinButtonState : m_iMaxButtonState);
- param.m_pGraphics = pGraphics;
- param.m_matrix.Concat(*pMatrix);
- param.m_rtPart = bMinBtn ? m_rtMinBtn : m_rtMaxBtn;
- if (param.m_rtPart.height > 0 && param.m_rtPart.width > 0)
- pTheme->DrawBackground(&param);
-}
-
-void CFWL_ScrollBar::DrawThumb(CFX_Graphics* pGraphics,
- IFWL_ThemeProvider* pTheme,
- const CFX_Matrix* pMatrix) {
- CFWL_ThemeBackground param;
- param.m_pWidget = this;
- param.m_iPart = CFWL_Part::Thumb;
- param.m_dwStates = (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
- ? CFWL_PartState_Disabled
- : m_iThumbButtonState;
- param.m_pGraphics = pGraphics;
- param.m_matrix.Concat(*pMatrix);
- param.m_rtPart = m_rtThumb;
- pTheme->DrawBackground(&param);
-}
-
-void CFWL_ScrollBar::Layout() {
- IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
- CFWL_ThemePart part;
- part.m_pWidget = this;
- m_fMinThumb = *static_cast<FX_FLOAT*>(
- pTheme->GetCapacity(&part, CFWL_WidgetCapacity::Size));
- GetClientRect(m_rtClient);
- CalcButtonLen();
- CalcMinButtonRect(m_rtMinBtn);
- CalcMaxButtonRect(m_rtMaxBtn);
- CalcThumbButtonRect(m_rtThumb);
- CalcMinTrackRect(m_rtMinTrack);
- CalcMaxTrackRect(m_rtMaxTrack);
-}
-
-void CFWL_ScrollBar::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_ScrollBar::CalcMinButtonRect(CFX_RectF& rect) {
- 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_ScrollBar::CalcMaxButtonRect(CFX_RectF& rect) {
- 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_ScrollBar::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;
- fLength -= fSize * 2.0f;
- if (fLength < fSize)
- fLength = 0.0f;
-
- FX_FLOAT fThumbSize = fLength * fLength / (fRange + fLength);
- fThumbSize = std::max(fThumbSize, m_fMinThumb);
-
- FX_FLOAT fDiff = std::max(fLength - fThumbSize, 0.0f);
- FX_FLOAT fTrackPos =
- std::max(std::min(m_fTrackPos, m_fRangeMax), m_fRangeMin);
- if (!fRange)
- return;
-
- 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_ScrollBar::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;
- bool bVertical = IsVertical();
- rect.width = bVertical ? m_rtClient.width : ix;
- rect.height = bVertical ? iy : m_rtClient.height;
-}
-
-void CFWL_ScrollBar::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;
- 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;
-}
-
-FX_FLOAT CFWL_ScrollBar::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 (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;
- return std::min(std::max(fPos, m_fRangeMin), m_fRangeMax);
-}
-
-bool CFWL_ScrollBar::SendEvent() {
- if (m_iMinButtonState == CFWL_PartState_Pressed) {
- DoScroll(CFWL_EvtScroll::Code::StepBackward, m_fTrackPos);
- return false;
- }
- if (m_iMaxButtonState == CFWL_PartState_Pressed) {
- DoScroll(CFWL_EvtScroll::Code::StepForward, m_fTrackPos);
- return false;
- }
- if (m_iMinTrackState == CFWL_PartState_Pressed) {
- DoScroll(CFWL_EvtScroll::Code::PageBackward, m_fTrackPos);
- return m_rtThumb.Contains(m_cpTrackPointX, m_cpTrackPointY);
- }
- if (m_iMaxTrackState == CFWL_PartState_Pressed) {
- DoScroll(CFWL_EvtScroll::Code::PageForward, m_fTrackPos);
- return m_rtThumb.Contains(m_cpTrackPointX, m_cpTrackPointY);
- }
- if (m_iMouseWheel) {
- CFWL_EvtScroll::Code dwCode = m_iMouseWheel < 0
- ? CFWL_EvtScroll::Code::StepForward
- : CFWL_EvtScroll::Code::StepBackward;
- DoScroll(dwCode, m_fTrackPos);
- }
- return true;
-}
-
-bool CFWL_ScrollBar::OnScroll(CFWL_EvtScroll::Code dwCode, FX_FLOAT fPos) {
- CFWL_EvtScroll ev(this);
- ev.m_iScrollCode = dwCode;
- ev.m_fPos = fPos;
- DispatchEvent(&ev);
- return true;
-}
-
-void CFWL_ScrollBar::OnProcessMessage(CFWL_Message* pMessage) {
- if (!pMessage)
- return;
-
- CFWL_Message::Type type = pMessage->GetType();
- if (type == CFWL_Message::Type::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 (type == CFWL_Message::Type::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_ScrollBar::OnDrawWidget(CFX_Graphics* pGraphics,
- const CFX_Matrix* pMatrix) {
- DrawWidget(pGraphics, pMatrix);
-}
-
-void CFWL_ScrollBar::OnLButtonDown(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy) {
- if (!IsEnabled())
- return;
-
- m_bMouseDown = true;
- SetGrab(true);
- m_cpTrackPointX = fx;
- m_cpTrackPointY = fy;
- m_fLastTrackPos = m_fTrackPos;
- if (m_rtMinBtn.Contains(fx, fy))
- DoMouseDown(0, m_rtMinBtn, m_iMinButtonState, fx, fy);
- else if (m_rtThumb.Contains(fx, fy))
- DoMouseDown(1, m_rtThumb, m_iThumbButtonState, fx, fy);
- else if (m_rtMaxBtn.Contains(fx, fy))
- DoMouseDown(2, m_rtMaxBtn, m_iMaxButtonState, fx, fy);
- else if (m_rtMinTrack.Contains(fx, fy))
- DoMouseDown(3, m_rtMinTrack, m_iMinTrackState, fx, fy);
- else
- DoMouseDown(4, m_rtMaxTrack, m_iMaxTrackState, fx, fy);
-
- if (!SendEvent())
- m_pTimerInfo = m_Timer.StartTimer(FWL_SCROLLBAR_Elapse, true);
-}
-
-void CFWL_ScrollBar::OnLButtonUp(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy) {
- m_pTimerInfo->StopTimer();
- m_bMouseDown = false;
- DoMouseUp(0, m_rtMinBtn, m_iMinButtonState, fx, fy);
- DoMouseUp(1, m_rtThumb, m_iThumbButtonState, fx, fy);
- DoMouseUp(2, m_rtMaxBtn, m_iMaxButtonState, fx, fy);
- DoMouseUp(3, m_rtMinTrack, m_iMinTrackState, fx, fy);
- DoMouseUp(4, m_rtMaxTrack, m_iMaxTrackState, fx, fy);
- SetGrab(false);
-}
-
-void CFWL_ScrollBar::OnMouseMove(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy) {
- DoMouseMove(0, m_rtMinBtn, m_iMinButtonState, fx, fy);
- DoMouseMove(1, m_rtThumb, m_iThumbButtonState, fx, fy);
- DoMouseMove(2, m_rtMaxBtn, m_iMaxButtonState, fx, fy);
- DoMouseMove(3, m_rtMinTrack, m_iMinTrackState, fx, fy);
- DoMouseMove(4, m_rtMaxTrack, m_iMaxTrackState, fx, fy);
-}
-
-void CFWL_ScrollBar::OnMouseLeave() {
- DoMouseLeave(0, m_rtMinBtn, m_iMinButtonState);
- DoMouseLeave(1, m_rtThumb, m_iThumbButtonState);
- DoMouseLeave(2, m_rtMaxBtn, m_iMaxButtonState);
- DoMouseLeave(3, m_rtMinTrack, m_iMinTrackState);
- DoMouseLeave(4, m_rtMaxTrack, m_iMaxTrackState);
-}
-
-void CFWL_ScrollBar::OnMouseWheel(FX_FLOAT fx,
- FX_FLOAT fy,
- uint32_t dwFlags,
- FX_FLOAT fDeltaX,
- FX_FLOAT fDeltaY) {
- m_iMouseWheel = (int32_t)fDeltaX;
- SendEvent();
- m_iMouseWheel = 0;
-}
-
-void CFWL_ScrollBar::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;
- Repaint(&rtItem);
-}
-
-void CFWL_ScrollBar::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;
- Repaint(&rtItem);
- OnScroll(CFWL_EvtScroll::Code::EndScroll, m_fTrackPos);
-}
-
-void CFWL_ScrollBar::DoMouseMove(int32_t iItem,
- const CFX_RectF& rtItem,
- int32_t& iState,
- FX_FLOAT fx,
- FX_FLOAT fy) {
- if (!m_bMouseDown) {
- int32_t iNewState = rtItem.Contains(fx, fy) ? CFWL_PartState_Hovered
- : CFWL_PartState_Normal;
- if (iState == iNewState)
- return;
-
- iState = iNewState;
- Repaint(&rtItem);
- } else if ((2 == iItem) && (m_iThumbButtonState == CFWL_PartState_Pressed)) {
- FX_FLOAT fPos = GetTrackPointPos(fx, fy);
- m_fTrackPos = fPos;
- OnScroll(CFWL_EvtScroll::Code::TrackPos, fPos);
- }
-}
-
-void CFWL_ScrollBar::DoMouseLeave(int32_t iItem,
- const CFX_RectF& rtItem,
- int32_t& iState) {
- if (iState == CFWL_PartState_Normal)
- return;
-
- iState = CFWL_PartState_Normal;
- Repaint(&rtItem);
-}
-
-void CFWL_ScrollBar::DoMouseHover(int32_t iItem,
- const CFX_RectF& rtItem,
- int32_t& iState) {
- if (iState == CFWL_PartState_Hovered)
- return;
-
- iState = CFWL_PartState_Hovered;
- Repaint(&rtItem);
-}
-
-CFWL_ScrollBar::Timer::Timer(CFWL_ScrollBar* pToolTip) : CFWL_Timer(pToolTip) {}
-
-void CFWL_ScrollBar::Timer::Run(CFWL_TimerInfo* pTimerInfo) {
- CFWL_ScrollBar* pButton = static_cast<CFWL_ScrollBar*>(m_pWidget);
-
- if (pButton->m_pTimerInfo)
- pButton->m_pTimerInfo->StopTimer();
-
- if (!pButton->SendEvent())
- pButton->m_pTimerInfo = StartTimer(0, true);
-}
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