diff options
Diffstat (limited to 'sd/source/ui/slidesorter/view/SlsToolTip.cxx')
-rw-r--r-- | sd/source/ui/slidesorter/view/SlsToolTip.cxx | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/view/SlsToolTip.cxx b/sd/source/ui/slidesorter/view/SlsToolTip.cxx new file mode 100644 index 000000000..c266bbe3d --- /dev/null +++ b/sd/source/ui/slidesorter/view/SlsToolTip.cxx @@ -0,0 +1,160 @@ +/* -*- 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 <view/SlsPageObjectLayouter.hxx> +#include <view/SlsToolTip.hxx> +#include <view/SlideSorterView.hxx> +#include <view/SlsLayouter.hxx> +#include <SlideSorter.hxx> +#include <Window.hxx> +#include <sdpage.hxx> +#include <sdresid.hxx> +#include <strings.hrc> + +#include <osl/diagnose.h> +#include <vcl/settings.hxx> +#include <vcl/help.hxx> + +namespace sd::slidesorter::view { + +ToolTip::ToolTip (SlideSorter& rSlideSorter) + : mrSlideSorter(rSlideSorter), + mnHelpWindowHandle(nullptr), + maShowTimer("sd::slidesorter::view::ToolTip maShowTimer"), + maHiddenTimer("sd::slidesorter::view::ToolTip maHiddenTimer") +{ + maShowTimer.SetTimeout(HelpSettings::GetTipDelay()); + maShowTimer.SetInvokeHandler(LINK(this, ToolTip, DelayTrigger)); + maHiddenTimer.SetTimeout(HelpSettings::GetTipDelay()); +} + +ToolTip::~ToolTip() +{ + maShowTimer.Stop(); + maHiddenTimer.Stop(); + Hide(); +} + +void ToolTip::SetPage (const model::SharedPageDescriptor& rpDescriptor) +{ + if (mpDescriptor == rpDescriptor) + return; + + maShowTimer.Stop(); + bool bWasVisible = Hide(); + + if (bWasVisible) + { + maHiddenTimer.Start(); + } + + mpDescriptor = rpDescriptor; + + if (mpDescriptor) + { + SdPage* pPage = mpDescriptor->GetPage(); + OUString sHelpText; + if (pPage != nullptr) + sHelpText = pPage->GetName(); + else + { + OSL_ASSERT(mpDescriptor->GetPage() != nullptr); + } + if (sHelpText.isEmpty()) + { + sHelpText = SdResId(STR_PAGE) + + OUString::number(mpDescriptor->GetPageIndex()+1); + } + + msCurrentHelpText = sHelpText; + // show new tooltip immediately, if last one was recently hidden + if(maHiddenTimer.IsActive()) + DoShow(); + else + maShowTimer.Start(); + } + else + { + msCurrentHelpText.clear(); + } +} + +void ToolTip::DoShow() +{ + if (maShowTimer.IsActive()) + { + // The delay timer is active. Wait for it to trigger the showing of + // the tool tip. + return; + } + + sd::Window *pWindow (mrSlideSorter.GetContentWindow().get()); + if (msCurrentHelpText.isEmpty() || !pWindow) + return; + + ::tools::Rectangle aBox ( + mrSlideSorter.GetView().GetLayouter().GetPageObjectLayouter()->GetBoundingBox( + mpDescriptor, + PageObjectLayouter::Part::Preview, + PageObjectLayouter::WindowCoordinateSystem)); + + // Do not show the help text when the (lower edge of the ) preview + // is not visible. The tool tip itself may still be outside the + // window. + if (aBox.Bottom() >= pWindow->GetSizePixel().Height()) + return; + + vcl::Window* pParent (pWindow); + while (pParent!=nullptr && pParent->GetParent()!=nullptr) + pParent = pParent->GetParent(); + const Point aOffset (pWindow->GetWindowExtentsRelative(pParent).TopLeft()); + + // We do not know how high the tool tip will be but want its top + // edge not its bottom to be at a specific position (a little below + // the preview). Therefore we use a little trick and place the tool + // tip at the top of a rectangle that is placed below the preview. + aBox.Move(aOffset.X(), aOffset.Y() + aBox.GetHeight() + 3); + mnHelpWindowHandle = Help::ShowPopover( + pWindow, + aBox, + msCurrentHelpText, + QuickHelpFlags::Center | QuickHelpFlags::Top); +} + +bool ToolTip::Hide() +{ + if (mnHelpWindowHandle) + { + sd::Window *pWindow (mrSlideSorter.GetContentWindow().get()); + Help::HidePopover(pWindow, mnHelpWindowHandle); + mnHelpWindowHandle = nullptr; + return true; + } + else + return false; +} + +IMPL_LINK_NOARG(ToolTip, DelayTrigger, Timer *, void) +{ + DoShow(); +} + +} // end of namespace ::sd::slidesorter::view + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |