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Diffstat (limited to 'vcl/source/control/scrbar.cxx')
| -rw-r--r-- | vcl/source/control/scrbar.cxx | 1469 |
1 files changed, 1469 insertions, 0 deletions
diff --git a/vcl/source/control/scrbar.cxx b/vcl/source/control/scrbar.cxx new file mode 100644 index 000000000..8e008465e --- /dev/null +++ b/vcl/source/control/scrbar.cxx @@ -0,0 +1,1469 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <vcl/event.hxx> +#include <vcl/decoview.hxx> +#include <vcl/scrbar.hxx> +#include <vcl/timer.hxx> +#include <vcl/settings.hxx> +#include <vcl/vclevent.hxx> + +#include <sal/log.hxx> + +/* #i77549# + HACK: for scrollbars in case of thumb rect, page up and page down rect we + abuse the HitTestNativeScrollbar interface. All theming engines but macOS + are actually able to draw the thumb according to our internal representation. + However macOS draws a little outside. The canonical way would be to enhance the + HitTestNativeScrollbar passing a ScrollbarValue additionally so all necessary + information is available in the call. + . + However since there is only this one small exception we will deviate a little and + instead pass the respective rect as control region to allow for a small correction. + + So all places using HitTestNativeScrollbar on ControlPart::ThumbHorz, ControlPart::ThumbVert, + ControlPart::TrackHorzLeft, ControlPart::TrackHorzRight, ControlPart::TrackVertUpper, ControlPart::TrackVertLower + do not use the control rectangle as region but the actual part rectangle, making + only small deviations feasible. +*/ + +#include "thumbpos.hxx" + +#define SCRBAR_DRAW_BTN1 (sal_uInt16(0x0001)) +#define SCRBAR_DRAW_BTN2 (sal_uInt16(0x0002)) +#define SCRBAR_DRAW_PAGE1 (sal_uInt16(0x0004)) +#define SCRBAR_DRAW_PAGE2 (sal_uInt16(0x0008)) +#define SCRBAR_DRAW_THUMB (sal_uInt16(0x0010)) +#define SCRBAR_DRAW_BACKGROUND (sal_uInt16(0x0020)) + +#define SCRBAR_STATE_BTN1_DOWN (sal_uInt16(0x0001)) +#define SCRBAR_STATE_BTN1_DISABLE (sal_uInt16(0x0002)) +#define SCRBAR_STATE_BTN2_DOWN (sal_uInt16(0x0004)) +#define SCRBAR_STATE_BTN2_DISABLE (sal_uInt16(0x0008)) +#define SCRBAR_STATE_PAGE1_DOWN (sal_uInt16(0x0010)) +#define SCRBAR_STATE_PAGE2_DOWN (sal_uInt16(0x0020)) +#define SCRBAR_STATE_THUMB_DOWN (sal_uInt16(0x0040)) + +#define SCRBAR_VIEW_STYLE (WB_3DLOOK | WB_HORZ | WB_VERT) + +struct ImplScrollBarData +{ + AutoTimer maTimer; // Timer + bool mbHide; +}; + +void ScrollBar::ImplInit( vcl::Window* pParent, WinBits nStyle ) +{ + mpData = nullptr; + mnThumbPixRange = 0; + mnThumbPixPos = 0; + mnThumbPixSize = 0; + mnMinRange = 0; + mnMaxRange = 100; + mnThumbPos = 0; + mnVisibleSize = 0; + mnLineSize = 1; + mnPageSize = 1; + mnDelta = 0; + mnStateFlags = 0; + meScrollType = ScrollType::DontKnow; + mbCalcSize = true; + mbFullDrag = false; + + ImplInitStyle( nStyle ); + Control::ImplInit( pParent, nStyle, nullptr ); + + long nScrollSize = GetSettings().GetStyleSettings().GetScrollBarSize(); + SetSizePixel( Size( nScrollSize, nScrollSize ) ); +} + +void ScrollBar::ImplInitStyle( WinBits nStyle ) +{ + if ( nStyle & WB_DRAG ) + mbFullDrag = true; + else + mbFullDrag = bool(GetSettings().GetStyleSettings().GetDragFullOptions() & DragFullOptions::Scroll); +} + +ScrollBar::ScrollBar( vcl::Window* pParent, WinBits nStyle ) : + Control( WindowType::SCROLLBAR ) +{ + ImplInit( pParent, nStyle ); +} + +ScrollBar::~ScrollBar() +{ + disposeOnce(); +} + +void ScrollBar::dispose() +{ + mpData.reset(); + Control::dispose(); +} + +void ScrollBar::ImplUpdateRects( bool bUpdate ) +{ + mnStateFlags &= ~SCRBAR_STATE_BTN1_DISABLE; + mnStateFlags &= ~SCRBAR_STATE_BTN2_DISABLE; + + if ( mnThumbPixRange ) + { + if ( GetStyle() & WB_HORZ ) + { + maThumbRect.SetLeft( maTrackRect.Left()+mnThumbPixPos ); + maThumbRect.SetRight( maThumbRect.Left()+mnThumbPixSize-1 ); + if ( !mnThumbPixPos ) + maPage1Rect.SetWidthEmpty(); + else + maPage1Rect.SetRight( maThumbRect.Left()-1 ); + if ( mnThumbPixPos >= (mnThumbPixRange-mnThumbPixSize) ) + maPage2Rect.SetWidthEmpty(); + else + { + maPage2Rect.SetLeft( maThumbRect.Right()+1 ); + maPage2Rect.SetRight( maTrackRect.Right() ); + } + } + else + { + maThumbRect.SetTop( maTrackRect.Top()+mnThumbPixPos ); + maThumbRect.SetBottom( maThumbRect.Top()+mnThumbPixSize-1 ); + if ( !mnThumbPixPos ) + maPage1Rect.SetHeightEmpty(); + else + maPage1Rect.SetBottom( maThumbRect.Top()-1 ); + if ( mnThumbPixPos >= (mnThumbPixRange-mnThumbPixSize) ) + maPage2Rect.SetHeightEmpty(); + else + { + maPage2Rect.SetTop( maThumbRect.Bottom()+1 ); + maPage2Rect.SetBottom( maTrackRect.Bottom() ); + } + } + } + else + { + if ( GetStyle() & WB_HORZ ) + { + const long nSpace = maTrackRect.Right() - maTrackRect.Left(); + if ( nSpace > 0 ) + { + maPage1Rect.SetLeft( maTrackRect.Left() ); + maPage1Rect.SetRight( maTrackRect.Left() + (nSpace/2) ); + maPage2Rect.SetLeft( maPage1Rect.Right() + 1 ); + maPage2Rect.SetRight( maTrackRect.Right() ); + } + } + else + { + const long nSpace = maTrackRect.Bottom() - maTrackRect.Top(); + if ( nSpace > 0 ) + { + maPage1Rect.SetTop( maTrackRect.Top() ); + maPage1Rect.SetBottom( maTrackRect.Top() + (nSpace/2) ); + maPage2Rect.SetTop( maPage1Rect.Bottom() + 1 ); + maPage2Rect.SetBottom( maTrackRect.Bottom() ); + } + } + } + + if( !IsNativeControlSupported(ControlType::Scrollbar, ControlPart::Entire) ) + { + // disable scrollbar buttons only in VCL's own 'theme' + // as it is uncommon on other platforms + if ( mnThumbPos == mnMinRange ) + mnStateFlags |= SCRBAR_STATE_BTN1_DISABLE; + if ( mnThumbPos >= (mnMaxRange-mnVisibleSize) ) + mnStateFlags |= SCRBAR_STATE_BTN2_DISABLE; + } + + if ( bUpdate ) + { + Invalidate(); + } +} + +long ScrollBar::ImplCalcThumbPos( long nPixPos ) +{ + // Calculate position + long nCalcThumbPos; + nCalcThumbPos = ImplMulDiv( nPixPos, mnMaxRange-mnVisibleSize-mnMinRange, + mnThumbPixRange-mnThumbPixSize ); + nCalcThumbPos += mnMinRange; + return nCalcThumbPos; +} + +long ScrollBar::ImplCalcThumbPosPix( long nPos ) +{ + long nCalcThumbPos; + + // Calculate position + nCalcThumbPos = ImplMulDiv( nPos-mnMinRange, mnThumbPixRange-mnThumbPixSize, + mnMaxRange-mnVisibleSize-mnMinRange ); + + // At the start and end of the ScrollBar, we try to show the display correctly + if ( !nCalcThumbPos && (mnThumbPos > mnMinRange) ) + nCalcThumbPos = 1; + if ( nCalcThumbPos && + ((nCalcThumbPos+mnThumbPixSize) >= mnThumbPixRange) && + (mnThumbPos < (mnMaxRange-mnVisibleSize)) ) + nCalcThumbPos--; + + return nCalcThumbPos; +} + +void ScrollBar::ImplCalc( bool bUpdate ) +{ + const Size aSize = GetOutputSizePixel(); + const long nMinThumbSize = GetSettings().GetStyleSettings().GetMinThumbSize(); + + if ( mbCalcSize ) + { + Size aOldSize = getCurrentCalcSize(); + + const tools::Rectangle aControlRegion( Point(0,0), aSize ); + tools::Rectangle aBtn1Region, aBtn2Region, aTrackRegion, aBoundingRegion; + + // reset rectangles to empty *and* (0,0) position + maThumbRect = tools::Rectangle(); + maPage1Rect = tools::Rectangle(); + maPage2Rect = tools::Rectangle(); + + if ( GetStyle() & WB_HORZ ) + { + if ( GetNativeControlRegion( ControlType::Scrollbar, IsRTLEnabled()? ControlPart::ButtonRight: ControlPart::ButtonLeft, + aControlRegion, ControlState::NONE, ImplControlValue(), aBoundingRegion, aBtn1Region ) && + GetNativeControlRegion( ControlType::Scrollbar, IsRTLEnabled()? ControlPart::ButtonLeft: ControlPart::ButtonRight, + aControlRegion, ControlState::NONE, ImplControlValue(), aBoundingRegion, aBtn2Region ) ) + { + maBtn1Rect = aBtn1Region; + maBtn2Rect = aBtn2Region; + } + else + { + Size aBtnSize( aSize.Height(), aSize.Height() ); + maBtn2Rect.SetTop( maBtn1Rect.Top() ); + maBtn2Rect.SetLeft( aSize.Width()-aSize.Height() ); + maBtn1Rect.SetSize( aBtnSize ); + maBtn2Rect.SetSize( aBtnSize ); + } + + if ( GetNativeControlRegion( ControlType::Scrollbar, ControlPart::TrackHorzArea, + aControlRegion, ControlState::NONE, ImplControlValue(), aBoundingRegion, aTrackRegion ) ) + maTrackRect = aTrackRegion; + else + maTrackRect = tools::Rectangle::Justify( maBtn1Rect.TopRight(), maBtn2Rect.BottomLeft() ); + + // Check if available space is big enough for thumb ( min thumb size = ScrBar width/height ) + mnThumbPixRange = maTrackRect.Right() - maTrackRect.Left(); + if( mnThumbPixRange > 0 ) + { + maPage1Rect.SetLeft( maTrackRect.Left() ); + maPage1Rect.SetBottom( maTrackRect.Bottom() ); + maPage2Rect.SetBottom (maTrackRect.Bottom() ); + maThumbRect.SetBottom( maTrackRect.Bottom() ); + } + else + mnThumbPixRange = 0; + } + else // WB_VERT + { + if ( GetNativeControlRegion( ControlType::Scrollbar, ControlPart::ButtonUp, + aControlRegion, ControlState::NONE, ImplControlValue(), aBoundingRegion, aBtn1Region ) && + GetNativeControlRegion( ControlType::Scrollbar, ControlPart::ButtonDown, + aControlRegion, ControlState::NONE, ImplControlValue(), aBoundingRegion, aBtn2Region ) ) + { + maBtn1Rect = aBtn1Region; + maBtn2Rect = aBtn2Region; + } + else + { + const Size aBtnSize( aSize.Width(), aSize.Width() ); + maBtn2Rect.SetLeft( maBtn1Rect.Left() ); + maBtn2Rect.SetTop( aSize.Height()-aSize.Width() ); + maBtn1Rect.SetSize( aBtnSize ); + maBtn2Rect.SetSize( aBtnSize ); + } + + if ( GetNativeControlRegion( ControlType::Scrollbar, ControlPart::TrackVertArea, + aControlRegion, ControlState::NONE, ImplControlValue(), aBoundingRegion, aTrackRegion ) ) + maTrackRect = aTrackRegion; + else + maTrackRect = tools::Rectangle::Justify( maBtn1Rect.BottomLeft()+Point(0,1), maBtn2Rect.TopRight() ); + + // Check if available space is big enough for thumb + mnThumbPixRange = maTrackRect.Bottom() - maTrackRect.Top(); + if( mnThumbPixRange > 0 ) + { + maPage1Rect.SetTop( maTrackRect.Top() ); + maPage1Rect.SetRight( maTrackRect.Right() ); + maPage2Rect.SetRight( maTrackRect.Right() ); + maThumbRect.SetRight( maTrackRect.Right() ); + } + else + mnThumbPixRange = 0; + } + + mbCalcSize = false; + + Size aNewSize = getCurrentCalcSize(); + if (aOldSize != aNewSize) + { + queue_resize(); + } + } + + if ( mnThumbPixRange ) + { + // Calculate values + if ( (mnVisibleSize >= (mnMaxRange-mnMinRange)) || + ((mnMaxRange-mnMinRange) <= 0) ) + { + mnThumbPos = mnMinRange; + mnThumbPixPos = 0; + mnThumbPixSize = mnThumbPixRange; + } + else + { + if ( mnVisibleSize ) + mnThumbPixSize = ImplMulDiv( mnThumbPixRange, mnVisibleSize, mnMaxRange-mnMinRange ); + else + { + if ( GetStyle() & WB_HORZ ) + mnThumbPixSize = maThumbRect.GetWidth(); + else + mnThumbPixSize = maThumbRect.GetHeight(); + } + if ( mnThumbPixSize < nMinThumbSize ) + mnThumbPixSize = nMinThumbSize; + if ( mnThumbPixSize > mnThumbPixRange ) + mnThumbPixSize = mnThumbPixRange; + mnThumbPixPos = ImplCalcThumbPosPix( mnThumbPos ); + } + } + + // If we're ought to output again and we have been triggered + // a Paint event via an Action, we don't output directly, + // but invalidate everything + if ( bUpdate && HasPaintEvent() ) + { + Invalidate(); + bUpdate = false; + } + ImplUpdateRects( bUpdate ); +} + +void ScrollBar::Draw( OutputDevice* pDev, const Point& rPos, DrawFlags nFlags ) +{ + Point aPos = pDev->LogicToPixel( rPos ); + + pDev->Push(); + pDev->SetMapMode(); + if ( !(nFlags & DrawFlags::Mono) ) + { + // DecoView uses the FaceColor... + AllSettings aSettings = pDev->GetSettings(); + StyleSettings aStyleSettings = aSettings.GetStyleSettings(); + if ( IsControlBackground() ) + aStyleSettings.SetFaceColor( GetControlBackground() ); + else + aStyleSettings.SetFaceColor( GetSettings().GetStyleSettings().GetFaceColor() ); + + aSettings.SetStyleSettings( aStyleSettings ); + pDev->SetSettings( aSettings ); + } + + // For printing: + // - calculate the size of the rects + // - because this is zero-based add the correct offset + // - print + // - force recalculate + + if ( mbCalcSize ) + ImplCalc( false ); + + maBtn1Rect+=aPos; + maBtn2Rect+=aPos; + maThumbRect+=aPos; + maTrackRect+=aPos; + maPage1Rect+=aPos; + maPage2Rect+=aPos; + + ImplDraw(*pDev); + pDev->Pop(); + + mbCalcSize = true; +} + +bool ScrollBar::ImplDrawNative(vcl::RenderContext& rRenderContext, sal_uInt16 nDrawFlags) +{ + ScrollbarValue scrValue; + + bool bNativeOK = rRenderContext.IsNativeControlSupported(ControlType::Scrollbar, ControlPart::Entire); + if (!bNativeOK) + return false; + + bool bHorz = (GetStyle() & WB_HORZ) != 0; + + // Draw the entire background if the control supports it + if (rRenderContext.IsNativeControlSupported(ControlType::Scrollbar, bHorz ? ControlPart::DrawBackgroundHorz : ControlPart::DrawBackgroundVert)) + { + ControlState nState = (IsEnabled() ? ControlState::ENABLED : ControlState::NONE) + | (HasFocus() ? ControlState::FOCUSED : ControlState::NONE); + + scrValue.mnMin = mnMinRange; + scrValue.mnMax = mnMaxRange; + scrValue.mnCur = mnThumbPos; + scrValue.mnVisibleSize = mnVisibleSize; + scrValue.maThumbRect = maThumbRect; + scrValue.maButton1Rect = maBtn1Rect; + scrValue.maButton2Rect = maBtn2Rect; + scrValue.mnButton1State = ((mnStateFlags & SCRBAR_STATE_BTN1_DOWN) ? ControlState::PRESSED : ControlState::NONE) | + ((!(mnStateFlags & SCRBAR_STATE_BTN1_DISABLE)) ? ControlState::ENABLED : ControlState::NONE); + scrValue.mnButton2State = ((mnStateFlags & SCRBAR_STATE_BTN2_DOWN) ? ControlState::PRESSED : ControlState::NONE) | + ((!(mnStateFlags & SCRBAR_STATE_BTN2_DISABLE)) ? ControlState::ENABLED : ControlState::NONE); + scrValue.mnThumbState = nState | ((mnStateFlags & SCRBAR_STATE_THUMB_DOWN) ? ControlState::PRESSED : ControlState::NONE); + + if (IsMouseOver()) + { + tools::Rectangle* pRect = ImplFindPartRect(GetPointerPosPixel()); + if (pRect) + { + if (pRect == &maThumbRect) + scrValue.mnThumbState |= ControlState::ROLLOVER; + else if (pRect == &maBtn1Rect) + scrValue.mnButton1State |= ControlState::ROLLOVER; + else if (pRect == &maBtn2Rect) + scrValue.mnButton2State |= ControlState::ROLLOVER; + } + } + + tools::Rectangle aCtrlRegion; + aCtrlRegion.Union(maBtn1Rect); + aCtrlRegion.Union(maBtn2Rect); + aCtrlRegion.Union(maPage1Rect); + aCtrlRegion.Union(maPage2Rect); + aCtrlRegion.Union(maThumbRect); + + tools::Rectangle aRequestedRegion(Point(0,0), GetOutputSizePixel()); + // if the actual native control region is smaller then the region that + // we requested the control to draw in, then draw a background rectangle + // to avoid drawing artifacts in the uncovered region + if (aCtrlRegion.GetWidth() < aRequestedRegion.GetWidth() || + aCtrlRegion.GetHeight() < aRequestedRegion.GetHeight()) + { + Color aFaceColor = rRenderContext.GetSettings().GetStyleSettings().GetFaceColor(); + rRenderContext.SetFillColor(aFaceColor); + rRenderContext.SetLineColor(aFaceColor); + rRenderContext.DrawRect(aRequestedRegion); + } + + bNativeOK = rRenderContext.DrawNativeControl(ControlType::Scrollbar, (bHorz ? ControlPart::DrawBackgroundHorz : ControlPart::DrawBackgroundVert), + aCtrlRegion, nState, scrValue, OUString()); + } + else + { + if ((nDrawFlags & SCRBAR_DRAW_PAGE1) || (nDrawFlags & SCRBAR_DRAW_PAGE2)) + { + ControlPart part1 = bHorz ? ControlPart::TrackHorzLeft : ControlPart::TrackVertUpper; + ControlPart part2 = bHorz ? ControlPart::TrackHorzRight : ControlPart::TrackVertLower; + tools::Rectangle aCtrlRegion1(maPage1Rect); + tools::Rectangle aCtrlRegion2(maPage2Rect); + ControlState nState1 = (IsEnabled() ? ControlState::ENABLED : ControlState::NONE) + | (HasFocus() ? ControlState::FOCUSED : ControlState::NONE); + ControlState nState2 = nState1; + + nState1 |= ((mnStateFlags & SCRBAR_STATE_PAGE1_DOWN) ? ControlState::PRESSED : ControlState::NONE); + nState2 |= ((mnStateFlags & SCRBAR_STATE_PAGE2_DOWN) ? ControlState::PRESSED : ControlState::NONE); + + if (IsMouseOver()) + { + tools::Rectangle* pRect = ImplFindPartRect(GetPointerPosPixel()); + if (pRect) + { + if (pRect == &maPage1Rect) + nState1 |= ControlState::ROLLOVER; + else if (pRect == &maPage2Rect) + nState2 |= ControlState::ROLLOVER; + } + } + + if (nDrawFlags & SCRBAR_DRAW_PAGE1) + bNativeOK = rRenderContext.DrawNativeControl(ControlType::Scrollbar, part1, aCtrlRegion1, nState1, scrValue, OUString()); + + if (nDrawFlags & SCRBAR_DRAW_PAGE2) + bNativeOK = rRenderContext.DrawNativeControl(ControlType::Scrollbar, part2, aCtrlRegion2, nState2, scrValue, OUString()); + } + if ((nDrawFlags & SCRBAR_DRAW_BTN1) || (nDrawFlags & SCRBAR_DRAW_BTN2)) + { + ControlPart part1 = bHorz ? ControlPart::ButtonLeft : ControlPart::ButtonUp; + ControlPart part2 = bHorz ? ControlPart::ButtonRight : ControlPart::ButtonDown; + tools::Rectangle aCtrlRegion1(maBtn1Rect); + tools::Rectangle aCtrlRegion2(maBtn2Rect); + ControlState nState1 = HasFocus() ? ControlState::FOCUSED : ControlState::NONE; + ControlState nState2 = nState1; + + if (!Window::IsEnabled() || !IsEnabled()) + nState1 = (nState2 &= ~ControlState::ENABLED); + else + nState1 = (nState2 |= ControlState::ENABLED); + + nState1 |= ((mnStateFlags & SCRBAR_STATE_BTN1_DOWN) ? ControlState::PRESSED : ControlState::NONE); + nState2 |= ((mnStateFlags & SCRBAR_STATE_BTN2_DOWN) ? ControlState::PRESSED : ControlState::NONE); + + if (mnStateFlags & SCRBAR_STATE_BTN1_DISABLE) + nState1 &= ~ControlState::ENABLED; + if (mnStateFlags & SCRBAR_STATE_BTN2_DISABLE) + nState2 &= ~ControlState::ENABLED; + + if (IsMouseOver()) + { + tools::Rectangle* pRect = ImplFindPartRect(GetPointerPosPixel()); + if (pRect) + { + if (pRect == &maBtn1Rect) + nState1 |= ControlState::ROLLOVER; + else if (pRect == &maBtn2Rect) + nState2 |= ControlState::ROLLOVER; + } + } + + if (nDrawFlags & SCRBAR_DRAW_BTN1) + bNativeOK = rRenderContext.DrawNativeControl(ControlType::Scrollbar, part1, aCtrlRegion1, nState1, scrValue, OUString()); + + if (nDrawFlags & SCRBAR_DRAW_BTN2) + bNativeOK = rRenderContext.DrawNativeControl(ControlType::Scrollbar, part2, aCtrlRegion2, nState2, scrValue, OUString()); + } + if ((nDrawFlags & SCRBAR_DRAW_THUMB) && !maThumbRect.IsEmpty()) + { + ControlState nState = IsEnabled() ? ControlState::ENABLED : ControlState::NONE; + tools::Rectangle aCtrlRegion(maThumbRect); + + if (mnStateFlags & SCRBAR_STATE_THUMB_DOWN) + nState |= ControlState::PRESSED; + + if (HasFocus()) + nState |= ControlState::FOCUSED; + + if (IsMouseOver()) + { + tools::Rectangle* pRect = ImplFindPartRect(GetPointerPosPixel()); + if (pRect && pRect == &maThumbRect) + nState |= ControlState::ROLLOVER; + } + + bNativeOK = rRenderContext.DrawNativeControl(ControlType::Scrollbar, (bHorz ? ControlPart::ThumbHorz : ControlPart::ThumbVert), + aCtrlRegion, nState, scrValue, OUString()); + } + } + return bNativeOK; +} + +void ScrollBar::ImplDraw(vcl::RenderContext& rRenderContext) +{ + DecorationView aDecoView(&rRenderContext); + tools::Rectangle aTempRect; + DrawButtonFlags nStyle; + const StyleSettings& rStyleSettings = rRenderContext.GetSettings().GetStyleSettings(); + SymbolType eSymbolType; + bool bEnabled = IsEnabled(); + + // Finish some open calculations (if any) + if (mbCalcSize) + ImplCalc(false); + + //vcl::Window *pWin = NULL; + //if (rRenderContext.GetOutDevType() == OUTDEV_WINDOW) + // pWin = static_cast<vcl::Window*>(&rRenderContext); + + // Draw the entire control if the native theme engine needs it + if (rRenderContext.IsNativeControlSupported(ControlType::Scrollbar, ControlPart::DrawBackgroundHorz)) + { + ImplDrawNative(rRenderContext, SCRBAR_DRAW_BACKGROUND); + return; + } + + if (!ImplDrawNative(rRenderContext, SCRBAR_DRAW_BTN1)) + { + nStyle = DrawButtonFlags::NoLightBorder; + if (mnStateFlags & SCRBAR_STATE_BTN1_DOWN) + nStyle |= DrawButtonFlags::Pressed; + aTempRect = aDecoView.DrawButton( PixelToLogic(maBtn1Rect), nStyle ); + ImplCalcSymbolRect( aTempRect ); + DrawSymbolFlags nSymbolStyle = DrawSymbolFlags::NONE; + if ((mnStateFlags & SCRBAR_STATE_BTN1_DISABLE) || !bEnabled) + nSymbolStyle |= DrawSymbolFlags::Disable; + if (GetStyle() & WB_HORZ) + eSymbolType = SymbolType::SPIN_LEFT; + else + eSymbolType = SymbolType::SPIN_UP; + aDecoView.DrawSymbol(aTempRect, eSymbolType, rStyleSettings.GetButtonTextColor(), nSymbolStyle); + } + + if (!ImplDrawNative(rRenderContext, SCRBAR_DRAW_BTN2)) + { + nStyle = DrawButtonFlags::NoLightBorder; + if (mnStateFlags & SCRBAR_STATE_BTN2_DOWN) + nStyle |= DrawButtonFlags::Pressed; + aTempRect = aDecoView.DrawButton(PixelToLogic(maBtn2Rect), nStyle); + ImplCalcSymbolRect(aTempRect); + DrawSymbolFlags nSymbolStyle = DrawSymbolFlags::NONE; + if ((mnStateFlags & SCRBAR_STATE_BTN2_DISABLE) || !bEnabled) + nSymbolStyle |= DrawSymbolFlags::Disable; + if (GetStyle() & WB_HORZ) + eSymbolType = SymbolType::SPIN_RIGHT; + else + eSymbolType = SymbolType::SPIN_DOWN; + aDecoView.DrawSymbol(aTempRect, eSymbolType, rStyleSettings.GetButtonTextColor(), nSymbolStyle); + } + + rRenderContext.SetLineColor(); + + if (!ImplDrawNative(rRenderContext, SCRBAR_DRAW_THUMB)) + { + if (!maThumbRect.IsEmpty()) + { + if (bEnabled) + { + nStyle = DrawButtonFlags::NoLightBorder; + aTempRect = aDecoView.DrawButton(PixelToLogic(maThumbRect), nStyle); + } + else + { + rRenderContext.SetFillColor(rStyleSettings.GetCheckedColor()); + rRenderContext.DrawRect(PixelToLogic(maThumbRect)); + } + } + } + + if (!ImplDrawNative(rRenderContext, SCRBAR_DRAW_PAGE1)) + { + if (mnStateFlags & SCRBAR_STATE_PAGE1_DOWN) + rRenderContext.SetFillColor(rStyleSettings.GetShadowColor()); + else + rRenderContext.SetFillColor(rStyleSettings.GetCheckedColor()); + rRenderContext.DrawRect(PixelToLogic(maPage1Rect)); + } + if (!ImplDrawNative(rRenderContext, SCRBAR_DRAW_PAGE2)) + { + if (mnStateFlags & SCRBAR_STATE_PAGE2_DOWN) + rRenderContext.SetFillColor(rStyleSettings.GetShadowColor()); + else + rRenderContext.SetFillColor(rStyleSettings.GetCheckedColor()); + rRenderContext.DrawRect(PixelToLogic(maPage2Rect)); + } +} + +long ScrollBar::ImplScroll( long nNewPos, bool bCallEndScroll ) +{ + long nOldPos = mnThumbPos; + SetThumbPos( nNewPos ); + long nDelta = mnThumbPos-nOldPos; + if ( nDelta ) + { + mnDelta = nDelta; + Scroll(); + if ( bCallEndScroll ) + EndScroll(); + mnDelta = 0; + } + return nDelta; +} + +long ScrollBar::ImplDoAction( bool bCallEndScroll ) +{ + long nDelta = 0; + + switch ( meScrollType ) + { + case ScrollType::LineUp: + nDelta = ImplScroll( mnThumbPos-mnLineSize, bCallEndScroll ); + break; + + case ScrollType::LineDown: + nDelta = ImplScroll( mnThumbPos+mnLineSize, bCallEndScroll ); + break; + + case ScrollType::PageUp: + nDelta = ImplScroll( mnThumbPos-mnPageSize, bCallEndScroll ); + break; + + case ScrollType::PageDown: + nDelta = ImplScroll( mnThumbPos+mnPageSize, bCallEndScroll ); + break; + default: + ; + } + + return nDelta; +} + +void ScrollBar::ImplDoMouseAction( const Point& rMousePos, bool bCallAction ) +{ + sal_uInt16 nOldStateFlags = mnStateFlags; + bool bAction = false; + bool bHorizontal = ( GetStyle() & WB_HORZ ) != 0; + bool bIsInside = false; + + Point aPoint( 0, 0 ); + tools::Rectangle aControlRegion( aPoint, GetOutputSizePixel() ); + + switch ( meScrollType ) + { + case ScrollType::LineUp: + if ( HitTestNativeScrollbar( bHorizontal? (IsRTLEnabled()? ControlPart::ButtonRight: ControlPart::ButtonLeft): ControlPart::ButtonUp, + aControlRegion, rMousePos, bIsInside )? + bIsInside: + maBtn1Rect.IsInside( rMousePos ) ) + { + bAction = bCallAction; + mnStateFlags |= SCRBAR_STATE_BTN1_DOWN; + } + else + mnStateFlags &= ~SCRBAR_STATE_BTN1_DOWN; + break; + + case ScrollType::LineDown: + if ( HitTestNativeScrollbar( bHorizontal? (IsRTLEnabled()? ControlPart::ButtonLeft: ControlPart::ButtonRight): ControlPart::ButtonDown, + aControlRegion, rMousePos, bIsInside )? + bIsInside: + maBtn2Rect.IsInside( rMousePos ) ) + { + bAction = bCallAction; + mnStateFlags |= SCRBAR_STATE_BTN2_DOWN; + } + else + mnStateFlags &= ~SCRBAR_STATE_BTN2_DOWN; + break; + + case ScrollType::PageUp: + // HitTestNativeScrollbar, see remark at top of file + if ( HitTestNativeScrollbar( bHorizontal? ControlPart::TrackHorzLeft: ControlPart::TrackVertUpper, + maPage1Rect, rMousePos, bIsInside )? + bIsInside: + maPage1Rect.IsInside( rMousePos ) ) + { + bAction = bCallAction; + mnStateFlags |= SCRBAR_STATE_PAGE1_DOWN; + } + else + mnStateFlags &= ~SCRBAR_STATE_PAGE1_DOWN; + break; + + case ScrollType::PageDown: + // HitTestNativeScrollbar, see remark at top of file + if ( HitTestNativeScrollbar( bHorizontal? ControlPart::TrackHorzRight: ControlPart::TrackVertLower, + maPage2Rect, rMousePos, bIsInside )? + bIsInside: + maPage2Rect.IsInside( rMousePos ) ) + { + bAction = bCallAction; + mnStateFlags |= SCRBAR_STATE_PAGE2_DOWN; + } + else + mnStateFlags &= ~SCRBAR_STATE_PAGE2_DOWN; + break; + default: + ; + } + + if ( nOldStateFlags != mnStateFlags ) + Invalidate(); + if ( bAction ) + ImplDoAction( false ); +} + +void ScrollBar::ImplDragThumb( const Point& rMousePos ) +{ + long nMovePix; + if ( GetStyle() & WB_HORZ ) + nMovePix = rMousePos.X()-(maThumbRect.Left()+mnMouseOff); + else + nMovePix = rMousePos.Y()-(maThumbRect.Top()+mnMouseOff); + + // Move thumb if necessary + if ( nMovePix ) + { + mnThumbPixPos += nMovePix; + if ( mnThumbPixPos < 0 ) + mnThumbPixPos = 0; + if ( mnThumbPixPos > (mnThumbPixRange-mnThumbPixSize) ) + mnThumbPixPos = mnThumbPixRange-mnThumbPixSize; + long nOldPos = mnThumbPos; + mnThumbPos = ImplCalcThumbPos( mnThumbPixPos ); + ImplUpdateRects(); + if ( mbFullDrag && (nOldPos != mnThumbPos) ) + { + // When dragging in windows the repaint request gets starved so dragging + // the scrollbar feels slower than it actually is. Let's force an immediate + // repaint of the scrollbar. + if (SupportsDoubleBuffering()) + { + Invalidate(); + PaintImmediately(); + } + else + ImplDraw(*this); + + mnDelta = mnThumbPos-nOldPos; + Scroll(); + mnDelta = 0; + } + } +} + +void ScrollBar::MouseButtonDown( const MouseEvent& rMEvt ) +{ + bool bPrimaryWarps = GetSettings().GetStyleSettings().GetPrimaryButtonWarpsSlider(); + bool bWarp = bPrimaryWarps ? rMEvt.IsLeft() : rMEvt.IsMiddle(); + bool bPrimaryWarping = bWarp && rMEvt.IsLeft(); + bool bPage = bPrimaryWarps ? rMEvt.IsRight() : rMEvt.IsLeft(); + + if (!rMEvt.IsLeft() && !rMEvt.IsMiddle() && !rMEvt.IsRight()) + return; + + Point aPosPixel; + if (!IsMapModeEnabled() && GetMapMode().GetMapUnit() == MapUnit::MapTwip) + { + // rMEvt coordinates are in twips. + Push(PushFlags::MAPMODE); + EnableMapMode(); + MapMode aMapMode = GetMapMode(); + aMapMode.SetOrigin(Point(0, 0)); + SetMapMode(aMapMode); + aPosPixel = LogicToPixel(rMEvt.GetPosPixel()); + Pop(); + } + const Point& rMousePos = (GetMapMode().GetMapUnit() != MapUnit::MapTwip ? rMEvt.GetPosPixel() : aPosPixel); + StartTrackingFlags nTrackFlags = StartTrackingFlags::NONE; + bool bHorizontal = ( GetStyle() & WB_HORZ ) != 0; + bool bIsInside = false; + bool bDragToMouse = false; + + Point aPoint( 0, 0 ); + tools::Rectangle aControlRegion( aPoint, GetOutputSizePixel() ); + + if ( HitTestNativeScrollbar( bHorizontal? (IsRTLEnabled()? ControlPart::ButtonRight: ControlPart::ButtonLeft): ControlPart::ButtonUp, + aControlRegion, rMousePos, bIsInside )? + bIsInside: + maBtn1Rect.IsInside( rMousePos ) ) + { + if (rMEvt.IsLeft() && !(mnStateFlags & SCRBAR_STATE_BTN1_DISABLE) ) + { + nTrackFlags = StartTrackingFlags::ButtonRepeat; + meScrollType = ScrollType::LineUp; + } + } + else if ( HitTestNativeScrollbar( bHorizontal? (IsRTLEnabled()? ControlPart::ButtonLeft: ControlPart::ButtonRight): ControlPart::ButtonDown, + aControlRegion, rMousePos, bIsInside )? + bIsInside: + maBtn2Rect.IsInside( rMousePos ) ) + { + if (rMEvt.IsLeft() && !(mnStateFlags & SCRBAR_STATE_BTN2_DISABLE) ) + { + nTrackFlags = StartTrackingFlags::ButtonRepeat; + meScrollType = ScrollType::LineDown; + } + } + else + { + bool bThumbHit = HitTestNativeScrollbar( bHorizontal? ControlPart::ThumbHorz : ControlPart::ThumbVert, + maThumbRect, rMousePos, bIsInside ) + ? bIsInside : maThumbRect.IsInside( rMousePos ); + + bool bThumbAction = bWarp || bPage; + + bool bDragHandling = bWarp || (bThumbHit && bThumbAction); + if( bDragHandling ) + { + if( mpData ) + { + mpData->mbHide = true; // disable focus blinking + if (HasFocus()) + { + mnStateFlags |= SCRBAR_DRAW_THUMB; // paint without focus + Invalidate(); + } + } + + if ( mnVisibleSize < mnMaxRange-mnMinRange ) + { + nTrackFlags = StartTrackingFlags::NONE; + meScrollType = ScrollType::Drag; + + // calculate mouse offset + if (bWarp && (!bThumbHit || !bPrimaryWarping)) + { + bDragToMouse = true; + if ( GetStyle() & WB_HORZ ) + mnMouseOff = maThumbRect.GetWidth()/2; + else + mnMouseOff = maThumbRect.GetHeight()/2; + } + else + { + if ( GetStyle() & WB_HORZ ) + mnMouseOff = rMousePos.X()-maThumbRect.Left(); + else + mnMouseOff = rMousePos.Y()-maThumbRect.Top(); + } + + mnStateFlags |= SCRBAR_STATE_THUMB_DOWN; + Invalidate(); + } + } + else if(bPage && (!HitTestNativeScrollbar( bHorizontal? ControlPart::TrackHorzArea : ControlPart::TrackVertArea, + aControlRegion, rMousePos, bIsInside ) || + bIsInside) ) + { + nTrackFlags = StartTrackingFlags::ButtonRepeat; + + // HitTestNativeScrollbar, see remark at top of file + if ( HitTestNativeScrollbar( bHorizontal? ControlPart::TrackHorzLeft : ControlPart::TrackVertUpper, + maPage1Rect, rMousePos, bIsInside )? + bIsInside: + maPage1Rect.IsInside( rMousePos ) ) + { + meScrollType = ScrollType::PageUp; + } + else + { + meScrollType = ScrollType::PageDown; + } + } + } + + // Should we start Tracking? + if ( meScrollType != ScrollType::DontKnow ) + { + // store original position for cancel and EndScroll delta + mnStartPos = mnThumbPos; + // #92906# Call StartTracking() before ImplDoMouseAction(), otherwise + // MouseButtonUp() / EndTracking() may be called if somebody is spending + // a lot of time in the scroll handler + StartTracking( nTrackFlags ); + ImplDoMouseAction( rMousePos ); + + if( bDragToMouse ) + ImplDragThumb( rMousePos ); + } + +} + +void ScrollBar::Tracking( const TrackingEvent& rTEvt ) +{ + if ( rTEvt.IsTrackingEnded() ) + { + // Restore Button and PageRect status + sal_uInt16 nOldStateFlags = mnStateFlags; + mnStateFlags &= ~(SCRBAR_STATE_BTN1_DOWN | SCRBAR_STATE_BTN2_DOWN | + SCRBAR_STATE_PAGE1_DOWN | SCRBAR_STATE_PAGE2_DOWN | + SCRBAR_STATE_THUMB_DOWN); + if ( nOldStateFlags != mnStateFlags ) + Invalidate(); + + // Restore the old ThumbPosition when canceled + if ( rTEvt.IsTrackingCanceled() ) + { + long nOldPos = mnThumbPos; + SetThumbPos( mnStartPos ); + mnDelta = mnThumbPos-nOldPos; + Scroll(); + } + + if ( meScrollType == ScrollType::Drag ) + { + // On a SCROLLDRAG we recalculate the Thumb, so that it's back to a + // rounded ThumbPosition + ImplCalc(); + + if ( !mbFullDrag && (mnStartPos != mnThumbPos) ) + { + mnDelta = mnThumbPos-mnStartPos; + Scroll(); + mnDelta = 0; + } + } + + mnDelta = mnThumbPos-mnStartPos; + EndScroll(); + mnDelta = 0; + meScrollType = ScrollType::DontKnow; + + if( mpData ) + mpData->mbHide = false; // re-enable focus blinking + } + else + { + Point aPosPixel; + if (!IsMapModeEnabled() && GetMapMode().GetMapUnit() == MapUnit::MapTwip) + { + // rTEvt coordinates are in twips. + Push(PushFlags::MAPMODE); + EnableMapMode(); + MapMode aMapMode = GetMapMode(); + aMapMode.SetOrigin(Point(0, 0)); + SetMapMode(aMapMode); + aPosPixel = LogicToPixel(rTEvt.GetMouseEvent().GetPosPixel()); + Pop(); + } + const Point rMousePos = (GetMapMode().GetMapUnit() != MapUnit::MapTwip ? rTEvt.GetMouseEvent().GetPosPixel() : aPosPixel); + + // Dragging is treated in a special way + if ( meScrollType == ScrollType::Drag ) + ImplDragThumb( rMousePos ); + else + ImplDoMouseAction( rMousePos, rTEvt.IsTrackingRepeat() ); + + // If ScrollBar values are translated in a way that there's + // nothing left to track, we cancel here + if ( !IsVisible() || (mnVisibleSize >= (mnMaxRange-mnMinRange)) ) + EndTracking(); + } +} + +void ScrollBar::KeyInput( const KeyEvent& rKEvt ) +{ + if ( !rKEvt.GetKeyCode().GetModifier() ) + { + switch ( rKEvt.GetKeyCode().GetCode() ) + { + case KEY_HOME: + DoScroll( 0 ); + break; + + case KEY_END: + DoScroll( GetRangeMax() ); + break; + + case KEY_LEFT: + case KEY_UP: + DoScrollAction( ScrollType::LineUp ); + break; + + case KEY_RIGHT: + case KEY_DOWN: + DoScrollAction( ScrollType::LineDown ); + break; + + case KEY_PAGEUP: + DoScrollAction( ScrollType::PageUp ); + break; + + case KEY_PAGEDOWN: + DoScrollAction( ScrollType::PageDown ); + break; + + default: + Control::KeyInput( rKEvt ); + break; + } + } + else + Control::KeyInput( rKEvt ); +} + +void ScrollBar::ApplySettings(vcl::RenderContext& rRenderContext) +{ + rRenderContext.SetBackground(); +} + +void ScrollBar::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&) +{ + ImplDraw(rRenderContext); +} + +void ScrollBar::Move() +{ + Control::Move(); + mbCalcSize = true; + if (IsReallyVisible()) + ImplCalc(false); + Invalidate(); +} + +void ScrollBar::Resize() +{ + Control::Resize(); + mbCalcSize = true; + if ( IsReallyVisible() ) + ImplCalc( false ); + Invalidate(); +} + +IMPL_LINK_NOARG(ScrollBar, ImplAutoTimerHdl, Timer *, void) +{ + if( mpData && mpData->mbHide ) + return; + ImplInvert(); +} + +void ScrollBar::ImplInvert() +{ + tools::Rectangle aRect( maThumbRect ); + if( aRect.getWidth() > 4 ) + { + aRect.AdjustLeft(2 ); + aRect.AdjustRight( -2 ); + } + if( aRect.getHeight() > 4 ) + { + aRect.AdjustTop(2 ); + aRect.AdjustBottom( -2 ); + } + + Invert( aRect ); +} + +void ScrollBar::GetFocus() +{ + if( !mpData ) + { + mpData.reset(new ImplScrollBarData); + mpData->maTimer.SetInvokeHandler( LINK( this, ScrollBar, ImplAutoTimerHdl ) ); + mpData->maTimer.SetDebugName( "vcl::ScrollBar mpData->maTimer" ); + mpData->mbHide = false; + } + ImplInvert(); // react immediately + mpData->maTimer.SetTimeout( GetSettings().GetStyleSettings().GetCursorBlinkTime() ); + mpData->maTimer.Start(); + Control::GetFocus(); +} + +void ScrollBar::LoseFocus() +{ + if( mpData ) + mpData->maTimer.Stop(); + Invalidate(); + + Control::LoseFocus(); +} + +void ScrollBar::StateChanged( StateChangedType nType ) +{ + Control::StateChanged( nType ); + + if ( nType == StateChangedType::InitShow ) + ImplCalc( false ); + else if ( nType == StateChangedType::Data ) + { + if ( IsReallyVisible() && IsUpdateMode() ) + ImplCalc(); + } + else if ( nType == StateChangedType::UpdateMode ) + { + if ( IsReallyVisible() && IsUpdateMode() ) + { + ImplCalc( false ); + Invalidate(); + } + } + else if ( nType == StateChangedType::Enable ) + { + if ( IsReallyVisible() && IsUpdateMode() ) + Invalidate(); + } + else if ( nType == StateChangedType::Style ) + { + ImplInitStyle( GetStyle() ); + if ( IsReallyVisible() && IsUpdateMode() ) + { + if ( (GetPrevStyle() & SCRBAR_VIEW_STYLE) != + (GetStyle() & SCRBAR_VIEW_STYLE) ) + { + mbCalcSize = true; + ImplCalc( false ); + Invalidate(); + } + } + } +} + +void ScrollBar::DataChanged( const DataChangedEvent& rDCEvt ) +{ + Control::DataChanged( rDCEvt ); + + if ( (rDCEvt.GetType() == DataChangedEventType::SETTINGS) && + (rDCEvt.GetFlags() & AllSettingsFlags::STYLE) ) + { + mbCalcSize = true; + ImplCalc( false ); + Invalidate(); + } +} + +tools::Rectangle* ScrollBar::ImplFindPartRect( const Point& rPt ) +{ + bool bHorizontal = ( GetStyle() & WB_HORZ ) != 0; + bool bIsInside = false; + + Point aPoint( 0, 0 ); + tools::Rectangle aControlRegion( aPoint, GetOutputSizePixel() ); + + if( HitTestNativeScrollbar( bHorizontal? (IsRTLEnabled()? ControlPart::ButtonRight: ControlPart::ButtonLeft): ControlPart::ButtonUp, + aControlRegion, rPt, bIsInside )? + bIsInside: + maBtn1Rect.IsInside( rPt ) ) + return &maBtn1Rect; + else if( HitTestNativeScrollbar( bHorizontal? (IsRTLEnabled()? ControlPart::ButtonLeft: ControlPart::ButtonRight): ControlPart::ButtonDown, + aControlRegion, rPt, bIsInside )? + bIsInside: + maBtn2Rect.IsInside( rPt ) ) + return &maBtn2Rect; + // HitTestNativeScrollbar, see remark at top of file + else if( HitTestNativeScrollbar( bHorizontal ? ControlPart::TrackHorzLeft : ControlPart::TrackVertUpper, + maPage1Rect, rPt, bIsInside)? + bIsInside: + maPage1Rect.IsInside( rPt ) ) + return &maPage1Rect; + // HitTestNativeScrollbar, see remark at top of file + else if( HitTestNativeScrollbar( bHorizontal ? ControlPart::TrackHorzRight : ControlPart::TrackVertLower, + maPage2Rect, rPt, bIsInside)? + bIsInside: + maPage2Rect.IsInside( rPt ) ) + return &maPage2Rect; + // HitTestNativeScrollbar, see remark at top of file + else if( HitTestNativeScrollbar( bHorizontal ? ControlPart::ThumbHorz : ControlPart::ThumbVert, + maThumbRect, rPt, bIsInside)? + bIsInside: + maThumbRect.IsInside( rPt ) ) + return &maThumbRect; + else + return nullptr; +} + +bool ScrollBar::PreNotify( NotifyEvent& rNEvt ) +{ + if( rNEvt.GetType() == MouseNotifyEvent::MOUSEMOVE ) + { + const MouseEvent* pMouseEvt = rNEvt.GetMouseEvent(); + if( pMouseEvt && !pMouseEvt->GetButtons() && !pMouseEvt->IsSynthetic() && !pMouseEvt->IsModifierChanged() ) + { + // Trigger a redraw if mouse over state has changed + if( IsNativeControlSupported(ControlType::Scrollbar, ControlPart::Entire) ) + { + tools::Rectangle* pRect = ImplFindPartRect( GetPointerPosPixel() ); + tools::Rectangle* pLastRect = ImplFindPartRect( GetLastPointerPosPixel() ); + if( pRect != pLastRect || pMouseEvt->IsLeaveWindow() || pMouseEvt->IsEnterWindow() ) + { + vcl::Region aRgn( GetActiveClipRegion() ); + vcl::Region aClipRegion; + + if ( pRect ) + aClipRegion.Union( *pRect ); + if ( pLastRect ) + aClipRegion.Union( *pLastRect ); + + // Support for 3-button scroll bars + bool bHas3Buttons = IsNativeControlSupported( ControlType::Scrollbar, ControlPart::HasThreeButtons ); + if ( bHas3Buttons && ( pRect == &maBtn1Rect || pLastRect == &maBtn1Rect ) ) + { + aClipRegion.Union( maBtn2Rect ); + } + + SetClipRegion( aClipRegion ); + Invalidate(aClipRegion.GetBoundRect()); + + SetClipRegion( aRgn ); + } + } + } + } + + return Control::PreNotify(rNEvt); +} + +void ScrollBar::Scroll() +{ + ImplCallEventListenersAndHandler( VclEventId::ScrollbarScroll, [this] () { maScrollHdl.Call(this); } ); +} + +void ScrollBar::EndScroll() +{ + ImplCallEventListenersAndHandler( VclEventId::ScrollbarEndScroll, [this] () { maEndScrollHdl.Call(this); } ); +} + +long ScrollBar::DoScroll( long nNewPos ) +{ + if ( meScrollType != ScrollType::DontKnow ) + return 0; + + SAL_INFO("vcl.scrollbar", "DoScroll(" << nNewPos << ")"); + meScrollType = ScrollType::Drag; + long nDelta = ImplScroll( nNewPos, true ); + meScrollType = ScrollType::DontKnow; + return nDelta; +} + +long ScrollBar::DoScrollAction( ScrollType eScrollType ) +{ + if ( (meScrollType != ScrollType::DontKnow) || + (eScrollType == ScrollType::DontKnow) || + (eScrollType == ScrollType::Drag) ) + return 0; + + meScrollType = eScrollType; + long nDelta = ImplDoAction( true ); + meScrollType = ScrollType::DontKnow; + return nDelta; +} + +void ScrollBar::SetRangeMin( long nNewRange ) +{ + SetRange( Range( nNewRange, GetRangeMax() ) ); +} + +void ScrollBar::SetRangeMax( long nNewRange ) +{ + SetRange( Range( GetRangeMin(), nNewRange ) ); +} + +void ScrollBar::SetRange( const Range& rRange ) +{ + // Adapt Range + Range aRange = rRange; + aRange.Justify(); + long nNewMinRange = aRange.Min(); + long nNewMaxRange = aRange.Max(); + + // If Range differs, set a new one + if ( (mnMinRange != nNewMinRange) || + (mnMaxRange != nNewMaxRange) ) + { + mnMinRange = nNewMinRange; + mnMaxRange = nNewMaxRange; + + // Adapt Thumb + if ( mnThumbPos > mnMaxRange-mnVisibleSize ) + mnThumbPos = mnMaxRange-mnVisibleSize; + if ( mnThumbPos < mnMinRange ) + mnThumbPos = mnMinRange; + + CompatStateChanged( StateChangedType::Data ); + } +} + +void ScrollBar::SetThumbPos( long nNewThumbPos ) +{ + if ( nNewThumbPos > mnMaxRange-mnVisibleSize ) + nNewThumbPos = mnMaxRange-mnVisibleSize; + if ( nNewThumbPos < mnMinRange ) + nNewThumbPos = mnMinRange; + + if ( mnThumbPos != nNewThumbPos ) + { + mnThumbPos = nNewThumbPos; + CompatStateChanged( StateChangedType::Data ); + } +} + +void ScrollBar::SetVisibleSize( long nNewSize ) +{ + if ( mnVisibleSize != nNewSize ) + { + mnVisibleSize = nNewSize; + + // Adapt Thumb + if ( mnThumbPos > mnMaxRange-mnVisibleSize ) + mnThumbPos = mnMaxRange-mnVisibleSize; + if ( mnThumbPos < mnMinRange ) + mnThumbPos = mnMinRange; + CompatStateChanged( StateChangedType::Data ); + } +} + +Size ScrollBar::GetOptimalSize() const +{ + if (mbCalcSize) + const_cast<ScrollBar*>(this)->ImplCalc(false); + + Size aRet = getCurrentCalcSize(); + + const long nMinThumbSize = GetSettings().GetStyleSettings().GetMinThumbSize(); + + if (GetStyle() & WB_HORZ) + { + aRet.setWidth( maBtn1Rect.GetWidth() + nMinThumbSize + maBtn2Rect.GetWidth() ); + } + else + { + aRet.setHeight( maBtn1Rect.GetHeight() + nMinThumbSize + maBtn2Rect.GetHeight() ); + } + + return aRet; +} + +Size ScrollBar::getCurrentCalcSize() const +{ + tools::Rectangle aCtrlRegion; + aCtrlRegion.Union(maBtn1Rect); + aCtrlRegion.Union(maBtn2Rect); + aCtrlRegion.Union(maPage1Rect); + aCtrlRegion.Union(maPage2Rect); + aCtrlRegion.Union(maThumbRect); + return aCtrlRegion.GetSize(); +} + +void ScrollBarBox::ImplInit(vcl::Window* pParent, WinBits nStyle) +{ + Window::ImplInit( pParent, nStyle, nullptr ); + + const StyleSettings& rStyleSettings = GetSettings().GetStyleSettings(); + long nScrollSize = rStyleSettings.GetScrollBarSize(); + SetSizePixel(Size(nScrollSize, nScrollSize)); +} + +ScrollBarBox::ScrollBarBox( vcl::Window* pParent, WinBits nStyle ) : + Window( WindowType::SCROLLBARBOX ) +{ + ImplInit( pParent, nStyle ); +} + +void ScrollBarBox::ApplySettings(vcl::RenderContext& rRenderContext) +{ + if (rRenderContext.IsBackground()) + { + Color aColor = rRenderContext.GetSettings().GetStyleSettings().GetFaceColor(); + ApplyControlBackground(rRenderContext, aColor); + } +} + +void ScrollBarBox::StateChanged( StateChangedType nType ) +{ + Window::StateChanged( nType ); + + if (nType == StateChangedType::ControlBackground) + { + Invalidate(); + } +} + +void ScrollBarBox::DataChanged( const DataChangedEvent& rDCEvt ) +{ + Window::DataChanged( rDCEvt ); + + if ((rDCEvt.GetType() == DataChangedEventType::SETTINGS) && + (rDCEvt.GetFlags() & AllSettingsFlags::STYLE)) + { + Invalidate(); + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |