diff options
Diffstat (limited to 'src/Authoring/Studio/Controls/ScrollerThumb.cpp')
| -rw-r--r-- | src/Authoring/Studio/Controls/ScrollerThumb.cpp | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/src/Authoring/Studio/Controls/ScrollerThumb.cpp b/src/Authoring/Studio/Controls/ScrollerThumb.cpp new file mode 100644 index 00000000..a7fedbca --- /dev/null +++ b/src/Authoring/Studio/Controls/ScrollerThumb.cpp @@ -0,0 +1,197 @@ +/**************************************************************************** +** +** Copyright (C) 2002 NVIDIA Corporation. +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +//============================================================================== +// Prefix +//============================================================================== +#include "stdafx.h" + +//============================================================================== +// Includes +//============================================================================== +#include "ScrollerThumb.h" +#include "ScrollerBar.h" +#include "Renderer.h" +#include "StudioPreferences.h" + +//============================================================================== +// Static variables +//============================================================================== +const long CScrollerThumb::MIN_LENGTH = 32; + +//============================================================================= +/** + * Constructor + * @param inScrollerBar the scroller bar this is operating on. + */ +CScrollerThumb::CScrollerThumb(IScrollerBar *inScrollerBar) + : m_MouseDown(false) +{ + m_ScrollerBar = inScrollerBar; +} + +//============================================================================= +/** + * Destructor + */ +CScrollerThumb::~CScrollerThumb() +{ +} + +//============================================================================= +/** + * Draw this scroller bar. + * @param inRenderer the renderer this is to draw to. + */ +void CScrollerThumb::Draw(CRenderer *inRenderer) +{ + if (IsEnabled()) { + CPt theSize = GetSize(); + CRct theRect(theSize); + + // Draw the thumb + inRenderer->FillSolidRect(theRect, CStudioPreferences::GetScrollThumbBGColor()); + // Draw the highlight + inRenderer->Draw3dRect(CRct(theRect.position.x + 1, theRect.position.y + 1, + theRect.size.x - 1, theRect.size.y - 1), + CStudioPreferences::GetScrollThumbHighlightColor(), + CStudioPreferences::GetScrollThumbBGColor()); + // Draw the black border + inRenderer->Draw3dRect(theRect, CStudioPreferences::GetScrollThumbShadowColor(), + CStudioPreferences::GetScrollThumbShadowColor()); + + // Draw the 3 lines in the middle of the control, depending on orientation + if (m_ScrollerBar->GetOrientation() == CScrollerBar::VERTICAL) { + // Draw the light lines + inRenderer->PushPen(CStudioPreferences::GetScrollThumbGripHighlightColor()); + inRenderer->MoveTo(CPt(theSize.x / 2 - 3, theSize.y / 2 - 5)); + inRenderer->LineTo(CPt(theSize.x / 2 + 2, theSize.y / 2 - 5)); + inRenderer->MoveTo(CPt(theSize.x / 2 - 3, theSize.y / 2 - 2)); + inRenderer->LineTo(CPt(theSize.x / 2 + 2, theSize.y / 2 - 2)); + inRenderer->MoveTo(CPt(theSize.x / 2 - 3, theSize.y / 2 + 1)); + inRenderer->LineTo(CPt(theSize.x / 2 + 2, theSize.y / 2 + 1)); + inRenderer->PopPen(); + // Draw the dark lines + inRenderer->PushPen(CStudioPreferences::GetScrollThumbGripShadowColor()); + inRenderer->MoveTo(CPt(theSize.x / 2 - 2, theSize.y / 2 - 4)); + inRenderer->LineTo(CPt(theSize.x / 2 + 3, theSize.y / 2 - 4)); + inRenderer->MoveTo(CPt(theSize.x / 2 - 2, theSize.y / 2 - 1)); + inRenderer->LineTo(CPt(theSize.x / 2 + 3, theSize.y / 2 - 1)); + inRenderer->MoveTo(CPt(theSize.x / 2 - 2, theSize.y / 2 + 2)); + inRenderer->LineTo(CPt(theSize.x / 2 + 3, theSize.y / 2 + 2)); + inRenderer->PopPen(); + } else { + // Draw the light lines + inRenderer->PushPen(CStudioPreferences::GetScrollThumbGripHighlightColor()); + inRenderer->MoveTo(CPt(theSize.x / 2 - 4, theSize.y / 2 - 3)); + inRenderer->LineTo(CPt(theSize.x / 2 - 4, theSize.y / 2 + 2)); + inRenderer->MoveTo(CPt(theSize.x / 2 - 1, theSize.y / 2 - 3)); + inRenderer->LineTo(CPt(theSize.x / 2 - 1, theSize.y / 2 + 2)); + inRenderer->MoveTo(CPt(theSize.x / 2 + 2, theSize.y / 2 - 3)); + inRenderer->LineTo(CPt(theSize.x / 2 + 2, theSize.y / 2 + 2)); + inRenderer->PopPen(); + + // Draw the dark lines + inRenderer->PushPen(CStudioPreferences::GetScrollThumbGripShadowColor()); + inRenderer->MoveTo(CPt(theSize.x / 2 - 3, theSize.y / 2 - 2)); + inRenderer->LineTo(CPt(theSize.x / 2 - 3, theSize.y / 2 + 3)); + inRenderer->MoveTo(CPt(theSize.x / 2, theSize.y / 2 - 2)); + inRenderer->LineTo(CPt(theSize.x / 2, theSize.y / 2 + 3)); + inRenderer->MoveTo(CPt(theSize.x / 2 + 3, theSize.y / 2 - 2)); + inRenderer->LineTo(CPt(theSize.x / 2 + 3, theSize.y / 2 + 3)); + inRenderer->PopPen(); + } + } +} + +//============================================================================= +/** + * Listener for the OnMouseDown to allow dragging. + * Begins dragging of the control. + */ +bool CScrollerThumb::OnMouseDown(CPt inPoint, Qt::KeyboardModifiers inFlags) +{ + if (!CControl::OnMouseDown(inPoint, inFlags)) { + m_MouseDown = true; + m_MouseDownPoint = inPoint; + + Invalidate(); + } + + return true; +} + +//============================================================================= +/** + * Ends dragging of the control. + */ +void CScrollerThumb::OnMouseUp(CPt inPoint, Qt::KeyboardModifiers inFlags) +{ + CControl::OnMouseUp(inPoint, inFlags); + m_MouseDown = false; + + Invalidate(); +} + +//============================================================================= +/** + * Used for dragging the control. + */ +void CScrollerThumb::OnMouseMove(CPt inPoint, Qt::KeyboardModifiers inFlags) +{ + CControl::OnMouseMove(inPoint, inFlags); + + // Only care if the mouse is down. + if (m_MouseDown) { + long theBarPos = m_ScrollerBar->GetBarPosition(); + + // Adjust the position based on which way we are being dragged. + if (m_ScrollerBar->GetOrientation() == CScrollerBar::VERTICAL) { + theBarPos += inPoint.y - m_MouseDownPoint.y; + } else { + theBarPos += inPoint.x - m_MouseDownPoint.x; + } + + // Update the position. + m_ScrollerBar->SetBarPosition(theBarPos); + } +} + +//============================================================================= +/** + * Get the minimum size that this scroller thumb is allowed to be. + * @return the minimum size that this scroller thumb is allowed to be. + */ +CPt CScrollerThumb::GetMinimumSize() +{ + if (m_ScrollerBar->GetOrientation() == CScrollerBar::HORIZONTAL) + return CPt(MIN_LENGTH, 0); + else + return CPt(0, MIN_LENGTH); +} |