diff options
Diffstat (limited to 'xfa/fwl/core/ifwl_scrollbar.cpp')
| -rw-r--r-- | xfa/fwl/core/ifwl_scrollbar.cpp | 563 |
1 files changed, 0 insertions, 563 deletions
diff --git a/xfa/fwl/core/ifwl_scrollbar.cpp b/xfa/fwl/core/ifwl_scrollbar.cpp deleted file mode 100644 index c1feeb847b..0000000000 --- a/xfa/fwl/core/ifwl_scrollbar.cpp +++ /dev/null @@ -1,563 +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/ifwl_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 - -IFWL_ScrollBar::IFWL_ScrollBar( - const CFWL_App* app, - std::unique_ptr<CFWL_WidgetProperties> properties, - IFWL_Widget* pOuter) - : IFWL_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(); -} - -IFWL_ScrollBar::~IFWL_ScrollBar() {} - -FWL_Type IFWL_ScrollBar::GetClassID() const { - return FWL_Type::ScrollBar; -} - -void IFWL_ScrollBar::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) { - if (!bAutoSize) { - rect = m_pProperties->m_rtWidget; - return; - } - - rect.Set(0, 0, 0, 0); - FX_FLOAT* pfMinWidth = static_cast<FX_FLOAT*>( - GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth)); - if (!pfMinWidth) - return; - if (IsVertical()) - rect.Set(0, 0, (*pfMinWidth), (*pfMinWidth) * 3); - else - rect.Set(0, 0, (*pfMinWidth) * 3, (*pfMinWidth)); - IFWL_Widget::GetWidgetRect(rect, true); -} - -void IFWL_ScrollBar::Update() { - if (IsLocked()) - return; - if (!m_pProperties->m_pThemeProvider) - m_pProperties->m_pThemeProvider = GetAvailableTheme(); - - Layout(); -} - -void IFWL_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 IFWL_ScrollBar::SetTrackPos(FX_FLOAT fTrackPos) { - m_fTrackPos = fTrackPos; - CalcThumbButtonRect(m_rtThumb); - CalcMinTrackRect(m_rtMinTrack); - CalcMaxTrackRect(m_rtMaxTrack); -} - -bool IFWL_ScrollBar::DoScroll(FWL_SCBCODE dwCode, FX_FLOAT fPos) { - if (dwCode == FWL_SCBCODE::None) - return false; - return OnScroll(dwCode, fPos); -} - -void IFWL_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(¶m); -} - -void IFWL_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(¶m); -} - -void IFWL_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(¶m); -} - -void IFWL_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 IFWL_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 IFWL_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 IFWL_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 IFWL_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 IFWL_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 IFWL_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 IFWL_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); -} - -void IFWL_ScrollBar::GetTrackRect(CFX_RectF& rect, bool bLower) { - bool bDisabled = !!(m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled); - if (bDisabled) { - rect = bLower ? m_rtMinTrack : m_rtMaxTrack; - return; - } - - FX_FLOAT fW = m_rtThumb.width / 2; - FX_FLOAT fH = m_rtThumb.height / 2; - 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); - return; - } - - 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); - return; - } - - 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); - return; - } - - 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); -} - -bool IFWL_ScrollBar::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) { - FWL_SCBCODE dwCode = m_iMouseWheel < 0 ? FWL_SCBCODE::StepForward - : FWL_SCBCODE::StepBackward; - DoScroll(dwCode, m_fTrackPos); - } - return true; -} - -bool IFWL_ScrollBar::OnScroll(FWL_SCBCODE dwCode, FX_FLOAT fPos) { - bool bRet = true; - CFWL_EvtScroll ev; - ev.m_iScrollCode = dwCode; - ev.m_pSrcTarget = this; - ev.m_fPos = fPos; - ev.m_pRet = &bRet; - DispatchEvent(&ev); - return bRet; -} - -void IFWL_ScrollBar::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 IFWL_ScrollBar::OnDrawWidget(CFX_Graphics* pGraphics, - const CFX_Matrix* pMatrix) { - DrawWidget(pGraphics, pMatrix); -} - -void IFWL_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 IFWL_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 IFWL_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 IFWL_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 IFWL_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 IFWL_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 IFWL_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(FWL_SCBCODE::EndScroll, m_fTrackPos); -} - -void IFWL_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(FWL_SCBCODE::TrackPos, fPos); - } -} - -void IFWL_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 IFWL_ScrollBar::DoMouseHover(int32_t iItem, - const CFX_RectF& rtItem, - int32_t& iState) { - if (iState == CFWL_PartState_Hovered) - return; - - iState = CFWL_PartState_Hovered; - Repaint(&rtItem); -} - -IFWL_ScrollBar::Timer::Timer(IFWL_ScrollBar* pToolTip) : CFWL_Timer(pToolTip) {} - -void IFWL_ScrollBar::Timer::Run(CFWL_TimerInfo* pTimerInfo) { - IFWL_ScrollBar* pButton = static_cast<IFWL_ScrollBar*>(m_pWidget); - - if (pButton->m_pTimerInfo) - pButton->m_pTimerInfo->StopTimer(); - - if (!pButton->SendEvent()) - pButton->m_pTimerInfo = StartTimer(0, true); -} |