sw/source/core/crsr/FormFieldButton.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <DropDownFormFieldButton.hxx>
  11 #include <edtwin.hxx>
  12 #include <basegfx/color/bcolortools.hxx>
  13 #include <bookmark.hxx>
  14 #include <vcl/weldutils.hxx>
  15 #include <vcl/event.hxx>
  16
  17 FormFieldButton::FormFieldButton(SwEditWin* pEditWin, sw::mark::Fieldmark& rFieldmark)
  18     : Control(pEditWin, WB_DIALOGCONTROL)
  19     , m_rFieldmark(rFieldmark)
  20 {
  21     assert(GetParent());
  22     assert(dynamic_cast<SwEditWin*>(GetParent()));
  23
  24     SetBackground();
  25     EnableChildTransparentMode();
  26     SetParentClipMode(ParentClipMode::NoClip);
  27     SetPaintTransparent(true);
  28 }
  29
  30 FormFieldButton::~FormFieldButton() { disposeOnce(); }
  31
  32 void FormFieldButton::LaunchPopup()
  33 {
  34     m_xFieldPopup->connect_closed(LINK(this, DropDownFormFieldButton, FieldPopupModeEndHdl));
  35
  36     tools::Rectangle aRect(Point(0, 0), GetSizePixel());
  37     weld::Window* pParent = weld::GetPopupParent(*this, aRect);
  38     m_xFieldPopup->popup_at_rect(pParent, aRect);
  39 }
  40
  41 void FormFieldButton::DestroyPopup()
  42 {
  43     m_xFieldPopup.reset();
  44     m_xFieldPopupBuilder.reset();
  45 }
  46
  47 void FormFieldButton::dispose()
  48 {
  49     DestroyPopup();
  50     Control::dispose();
  51 }
  52
  53 void FormFieldButton::CalcPosAndSize(const SwRect& rPortionPaintArea)
  54 {
  55     assert(GetParent());
  56
  57     Point aBoxPos = GetParent()->LogicToPixel(rPortionPaintArea.Pos());
  58     Size aBoxSize = GetParent()->LogicToPixel(rPortionPaintArea.SSize());
  59
  60     // First calculate the size of the frame around the field
  61     int nPadding = aBoxSize.Height() / 4;
  62     aBoxPos.AdjustX(-nPadding);
  63     aBoxPos.AdjustY(-nPadding);
  64     aBoxSize.AdjustWidth(2 * nPadding);
  65     aBoxSize.AdjustHeight(2 * nPadding);
  66
  67     m_aFieldFramePixel = tools::Rectangle(aBoxPos, aBoxSize);
  68
  69     // Then extend the size with the button area
  70     aBoxSize.AdjustWidth(GetParent()->LogicToPixel(rPortionPaintArea.SSize()).Height());
  71
  72     if (aBoxPos != GetPosPixel() || aBoxSize != GetSizePixel())
  73     {
  74         SetPosSizePixel(aBoxPos, aBoxSize);
  75         Invalidate();
  76     }
  77 }
  78
  79 void FormFieldButton::MouseButtonDown(const MouseEvent&)
  80 {
  81     LaunchPopup();
  82     Invalidate();
  83 }
  84
  85 IMPL_LINK_NOARG(FormFieldButton, FieldPopupModeEndHdl, weld::Popover&, void)
  86 {
  87     DestroyPopup();
  88     m_rFieldmark.Invalidate();
  89     // Hide the button here and make it visible later, to make transparent background work with SAL_USE_VCLPLUGIN=gen
  90     Show(false);
  91     Invalidate();
  92 }
  93
  94 static basegfx::BColor lcl_GetFillColor(const basegfx::BColor& rLineColor, double aLuminance)
  95 {
  96     basegfx::BColor aHslLine = basegfx::utils::rgb2hsl(rLineColor);
  97     aHslLine.setZ(aLuminance);
  98     return basegfx::utils::hsl2rgb(aHslLine);
  99 }
 100
 101 void FormFieldButton::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&)
 102 {
 103     SetMapMode(MapMode(MapUnit::MapPixel));
 104
 105     //const StyleSettings& rSettings = Application::GetSettings().GetStyleSettings();
 106     Color aLineColor = COL_BLACK;
 107     Color aFillColor(lcl_GetFillColor(aLineColor.getBColor(), (m_xFieldPopup ? 0.5 : 0.75)));
 108
 109     // Draw the frame around the field
 110     // GTK3 backend cuts down the frame's top and left border, to avoid that add a padding around the frame
 111     int nPadding = 1;
 112     Point aPos(nPadding, nPadding);
 113     Size aSize(m_aFieldFramePixel.GetSize().Width() - nPadding,
 114                m_aFieldFramePixel.GetSize().Height() - nPadding);
 115     const tools::Rectangle aFrameRect(tools::Rectangle(aPos, aSize));
 116     rRenderContext.SetLineColor(aLineColor);
 117     rRenderContext.SetFillColor(COL_TRANSPARENT);
 118     rRenderContext.DrawRect(aFrameRect);
 119
 120     // Draw the button next to the frame
 121     Point aButtonPos(aFrameRect.TopLeft());
 122     aButtonPos.AdjustX(aFrameRect.GetSize().getWidth() - 1);
 123     Size aButtonSize(aFrameRect.GetSize());
 124     aButtonSize.setWidth(GetSizePixel().getWidth() - aFrameRect.getOpenWidth() - nPadding);
 125     const tools::Rectangle aButtonRect(tools::Rectangle(aButtonPos, aButtonSize));
 126
 127     // Background & border
 128     rRenderContext.SetLineColor(aLineColor);
 129     rRenderContext.SetFillColor(aFillColor);
 130     rRenderContext.DrawRect(aButtonRect);
 131
 132     // the arrowhead
 133     rRenderContext.SetLineColor(aLineColor);
 134     rRenderContext.SetFillColor(aLineColor);
 135
 136     Point aCenter(aButtonPos.X() + (aButtonSize.Width() / 2),
 137                   aButtonPos.Y() + (aButtonSize.Height() / 2));
 138     Size aArrowSize(aButtonSize.Width() / 4, aButtonSize.Height() / 10);
 139
 140     tools::Polygon aPoly(3);
 141     aPoly.SetPoint(Point(aCenter.X() - aArrowSize.Width(), aCenter.Y() - aArrowSize.Height()), 0);
 142     aPoly.SetPoint(Point(aCenter.X() + aArrowSize.Width(), aCenter.Y() - aArrowSize.Height()), 1);
 143     aPoly.SetPoint(Point(aCenter.X(), aCenter.Y() + aArrowSize.Height()), 2);
 144     rRenderContext.DrawPolygon(aPoly);
 145 }
 146
 147 WindowHitTest FormFieldButton::ImplHitTest(const Point& rFramePos)
 148 {
 149     // We need to check whether the position hits the button (the frame should be mouse transparent)
 150     WindowHitTest aResult = Control::ImplHitTest(rFramePos);
 151     if (aResult != WindowHitTest::Inside)
 152         return aResult;
 153     else
 154     {
 155         return rFramePos.X() >= m_aFieldFramePixel.Right() ? WindowHitTest::Inside
 156                                                            : WindowHitTest::Transparent;
 157     }
 158 }
 159
 160 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */