From ed5640d8b587fbcfed7dd7967f3de04b37a76f26 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:06:44 +0200 Subject: Adding upstream version 4:7.4.7. Signed-off-by: Daniel Baumann --- vcl/source/control/PriorityHBox.cxx | 197 ++++++++++++++++++++++++++++++++++++ 1 file changed, 197 insertions(+) create mode 100644 vcl/source/control/PriorityHBox.cxx (limited to 'vcl/source/control/PriorityHBox.cxx') diff --git a/vcl/source/control/PriorityHBox.cxx b/vcl/source/control/PriorityHBox.cxx new file mode 100644 index 000000000..c893cc833 --- /dev/null +++ b/vcl/source/control/PriorityHBox.cxx @@ -0,0 +1,197 @@ +/* -*- 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 +#include +#include + +namespace +{ +bool lcl_comparePriority(const vcl::IPrioritable* a, const vcl::IPrioritable* b) +{ + return a->GetPriority() < b->GetPriority(); +} +} + +PriorityHBox::PriorityHBox(vcl::Window* pParent) + : VclHBox(pParent) + , m_bInitialized(false) +{ +} + +PriorityHBox::~PriorityHBox() { disposeOnce(); } + +void PriorityHBox::Initialize() +{ + m_bInitialized = true; + + GetChildrenWithPriorities(); + SetSizeFromParent(); +} + +int PriorityHBox::GetHiddenCount() const +{ + int nCount = 0; + + for (auto pWindow : m_aSortedChildren) + if (pWindow->IsHidden()) + nCount++; + + return nCount; +} + +void PriorityHBox::SetSizeFromParent() +{ + vcl::Window* pParent = GetParent(); + if (pParent) + { + Size aParentSize = pParent->GetSizePixel(); + SetSizePixel(Size(aParentSize.getWidth(), aParentSize.getHeight())); + } +} + +Size PriorityHBox::calculateRequisition() const +{ + if (!m_bInitialized) + { + return VclHBox::calculateRequisition(); + } + + sal_uInt16 nVisibleChildren = 0; + + Size aSize; + for (vcl::Window* pChild = GetWindow(GetWindowType::FirstChild); pChild; + pChild = pChild->GetWindow(GetWindowType::Next)) + { + if (!pChild->IsVisible()) + continue; + ++nVisibleChildren; + Size aChildSize = getLayoutRequisition(*pChild); + + bool bAlwaysExpanded = true; + + vcl::IPrioritable* pPrioritable = dynamic_cast(pChild); + if (pPrioritable && pPrioritable->GetPriority() != VCL_PRIORITY_DEFAULT) + bAlwaysExpanded = false; + + if (bAlwaysExpanded) + { + tools::Long nPrimaryDimension = getPrimaryDimension(aChildSize); + nPrimaryDimension += pChild->get_padding() * 2; + setPrimaryDimension(aChildSize, nPrimaryDimension); + } + else + setPrimaryDimension(aChildSize, 0); + + accumulateMaxes(aChildSize, aSize); + } + + return finalizeMaxes(aSize, nVisibleChildren); +} + +void PriorityHBox::Resize() +{ + if (!m_bInitialized) + Initialize(); + + if (!m_bInitialized || comphelper::LibreOfficeKit::isActive()) + { + return VclHBox::Resize(); + } + + tools::Long nWidth = GetSizePixel().Width(); + tools::Long nCurrentWidth = VclHBox::calculateRequisition().getWidth(); + + // Hide lower priority controls + for (vcl::IPrioritable* pPrioritable : m_aSortedChildren) + { + if (nCurrentWidth <= nWidth) + break; + + vcl::Window* pWindow = dynamic_cast(pPrioritable); + + if (pWindow && pWindow->GetParent() == this) + { + nCurrentWidth -= pWindow->GetOutputSizePixel().Width() + get_spacing(); + pWindow->Show(); + pPrioritable->HideContent(); + nCurrentWidth += pWindow->GetOutputSizePixel().Width() + get_spacing(); + } + } + + auto pChildR = m_aSortedChildren.rbegin(); + // Show higher priority controls if we already have enough space + while (pChildR != m_aSortedChildren.rend()) + { + vcl::Window* pWindow = dynamic_cast(*pChildR); + vcl::IPrioritable* pPrioritable = *pChildR; + + if (pWindow->GetParent() != this) + { + pChildR++; + continue; + } + + if (pWindow) + { + nCurrentWidth -= pWindow->GetOutputSizePixel().Width() + get_spacing(); + pWindow->Show(); + pPrioritable->ShowContent(); + nCurrentWidth += getLayoutRequisition(*pWindow).Width() + get_spacing(); + + if (nCurrentWidth > nWidth) + { + pPrioritable->HideContent(); + break; + } + } + + pChildR++; + } + + VclHBox::Resize(); +} + +void PriorityHBox::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect) +{ + if (!m_bInitialized) + Initialize(); + + VclHBox::Paint(rRenderContext, rRect); +} + +void PriorityHBox::GetChildrenWithPriorities() +{ + for (sal_uInt16 i = 0; i < GetChildCount(); ++i) + { + vcl::Window* pChild = GetChild(i); + + // Add only containers which have explicitly assigned priority. + vcl::IPrioritable* pPrioritable = dynamic_cast(pChild); + if (pPrioritable && pPrioritable->GetPriority() != VCL_PRIORITY_DEFAULT) + m_aSortedChildren.push_back(pPrioritable); + } + + if (m_aSortedChildren.empty()) + m_bInitialized = false; + + std::sort(m_aSortedChildren.begin(), m_aSortedChildren.end(), lcl_comparePriority); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3