contentcontrolbutton.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
 * 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/.
 */
 
#include <contentcontrolbutton.hxx>
 
#include <vcl/weldutils.hxx>
#include <vcl/event.hxx>
 
#include <edtwin.hxx>
 
SwContentControlButton::SwContentControlButton(
    SwEditWin* pEditWin, const std::shared_ptr<SwContentControl>& pContentControl)
    : Control(pEditWin, WB_DIALOGCONTROL)
    , m_pContentControl(pContentControl)
{
    assert(GetParent());
    assert(dynamic_cast<SwEditWin*>(GetParent()));
 
    SetBackground();
    EnableChildTransparentMode();
    SetParentClipMode(ParentClipMode::NoClip);
    SetPaintTransparent(true);
}
 
SwContentControlButton::~SwContentControlButton() { disposeOnce(); }
 
void SwContentControlButton::LaunchPopup()
{
    m_xPopup->connect_closed(LINK(this, SwContentControlButton, PopupModeEndHdl));
 
    tools::Rectangle aRect(Point(0, 0), GetSizePixel());
    weld::Window* pParent = weld::GetPopupParent(*this, aRect);
    m_xPopup->popup_at_rect(pParent, aRect);
}
 
void SwContentControlButton::DestroyPopup()
{
    m_xPopup.reset();
    m_xPopupBuilder.reset();
}
 
void SwContentControlButton::dispose()
{
    DestroyPopup();
    Control::dispose();
}
 
void SwContentControlButton::CalcPosAndSize(const SwRect& rPortionPaintArea)
{
    assert(GetParent());
 
    Point aBoxPos = GetParent()->LogicToPixel(rPortionPaintArea.Pos());
    Size aBoxSize = GetParent()->LogicToPixel(rPortionPaintArea.SSize());
 
    // First calculate the size of the frame around the content control's last portion
    int nPadding = aBoxSize.Height() / 4;
    aBoxPos.AdjustX(-nPadding / 2);
    aBoxPos.AdjustY(-1);
    aBoxSize.AdjustWidth(nPadding);
    aBoxSize.AdjustHeight(2);
 
    m_aFramePixel = tools::Rectangle(aBoxPos, aBoxSize);
 
    // Then extend the size with the button area
    aBoxSize.AdjustWidth(GetParent()->LogicToPixel(rPortionPaintArea.SSize()).Height());
 
    if (aBoxPos != GetPosPixel() || aBoxSize != GetSizePixel())
    {
        SetPosSizePixel(aBoxPos, aBoxSize);
        Invalidate();
    }
}
 
void SwContentControlButton::MouseButtonDown(const MouseEvent&)
{
    LaunchPopup();
    Invalidate();
}
 
IMPL_LINK_NOARG(SwContentControlButton, PopupModeEndHdl, weld::Popover&, void)
{
    DestroyPopup();
    Show(false);
    Invalidate();
}
 
void SwContentControlButton::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&)
{
    SetMapMode(MapMode(MapUnit::MapPixel));
 
    Color aLineColor = COL_BLACK;
    Color aFillColor = aLineColor;
    aFillColor.IncreaseLuminance(255 * (m_xPopup ? 0.5 : 0.75));
 
    // Calc the frame around the content control's last portion
    int nPadding = 1;
    Point aPos(nPadding, nPadding);
    Size aSize(m_aFramePixel.GetSize().Width() - nPadding,
               m_aFramePixel.GetSize().Height() - nPadding);
    const tools::Rectangle aFrameRect(tools::Rectangle(aPos, aSize));
 
    // Draw the button next to the frame
    Point aButtonPos(aFrameRect.TopLeft());
    aButtonPos.AdjustX(aFrameRect.GetSize().getWidth() - 1);
    Size aButtonSize(aFrameRect.GetSize());
    aButtonSize.setWidth(GetSizePixel().getWidth() - aFrameRect.getWidth() - nPadding);
    const tools::Rectangle aButtonRect(tools::Rectangle(aButtonPos, aButtonSize));
 
    // Background & border
    rRenderContext.SetLineColor(aLineColor);
    rRenderContext.SetFillColor(aFillColor);
    rRenderContext.DrawRect(aButtonRect);
 
    // the arrowhead
    rRenderContext.SetLineColor(aLineColor);
    rRenderContext.SetFillColor(aLineColor);
 
    Point aCenter(aButtonPos.X() + (aButtonSize.Width() / 2),
                  aButtonPos.Y() + (aButtonSize.Height() / 2));
    tools::Long nMinWidth = 4;
    tools::Long nMinHeight = 2;
    Size aArrowSize(std::max(aButtonSize.Width() / 4, nMinWidth),
                    std::max(aButtonSize.Height() / 10, nMinHeight));
 
    tools::Polygon aPoly(3);
    aPoly.SetPoint(Point(aCenter.X() - aArrowSize.Width(), aCenter.Y() - aArrowSize.Height()), 0);
    aPoly.SetPoint(Point(aCenter.X() + aArrowSize.Width(), aCenter.Y() - aArrowSize.Height()), 1);
    aPoly.SetPoint(Point(aCenter.X(), aCenter.Y() + aArrowSize.Height()), 2);
    rRenderContext.DrawPolygon(aPoly);
}
 
WindowHitTest SwContentControlButton::ImplHitTest(const Point& rFramePos)
{
    // We need to check whether the position hits the button (the frame should be mouse transparent)
    WindowHitTest aResult = Control::ImplHitTest(rFramePos);
    if (aResult != WindowHitTest::Inside)
        return aResult;
    else
    {
        return rFramePos.X() >= m_aFramePixel.Right() ? WindowHitTest::Inside
                                                      : WindowHitTest::Transparent;
    }
}
 
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