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Diffstat (limited to '')
| -rw-r--r-- | svx/source/dialog/dialcontrol.cxx | 479 |
1 files changed, 479 insertions, 0 deletions
diff --git a/svx/source/dialog/dialcontrol.cxx b/svx/source/dialog/dialcontrol.cxx new file mode 100644 index 000000000..7faf0d985 --- /dev/null +++ b/svx/source/dialog/dialcontrol.cxx @@ -0,0 +1,479 @@ +/* -*- 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 <svx/dialcontrol.hxx> +#include <cmath> +#include <vcl/virdev.hxx> +#include <vcl/svapp.hxx> +#include <vcl/bitmapex.hxx> +#include <vcl/event.hxx> +#include <vcl/settings.hxx> +#include <i18nlangtag/languagetag.hxx> + +namespace svx { + +const long DIAL_OUTER_WIDTH = 8; + +DialControlBmp::DialControlBmp(OutputDevice& rReference) + : VirtualDevice(rReference, DeviceFormat::DEFAULT, DeviceFormat::DEFAULT) + , mbEnabled(true) + , mrParent(rReference) + , mnCenterX(0) + , mnCenterY(0) +{ + EnableRTL(false); +} + +void DialControlBmp::InitBitmap(const vcl::Font& rFont) +{ + Init(); + SetFont(rFont); +} + +void DialControlBmp::CopyBackground( const DialControlBmp& rSrc ) +{ + Init(); + SetSize(rSrc.maRect.GetSize()); + mbEnabled = rSrc.mbEnabled; + Point aPos; + DrawBitmapEx( aPos, rSrc.GetBitmapEx( aPos, maRect.GetSize() ) ); +} + +void DialControlBmp::DrawBackground( const Size& rSize, bool bEnabled ) +{ + Init(); + SetSize(rSize); + mbEnabled = bEnabled; + DrawBackground(); +} + +void DialControlBmp::DrawElements( const OUString& rText, sal_Int32 nAngle ) +{ + double fAngle = basegfx::deg2rad(nAngle) / 100.0; + double fSin = sin( fAngle ); + double fCos = cos( fAngle ); + double fWidth = GetTextWidth( rText ) / 2.0; + double fHeight = GetTextHeight() / 2.0; + + if ( !rText.isEmpty() ) + { + // rotated text + vcl::Font aFont( GetFont() ); + aFont.SetColor( GetTextColor() ); + aFont.SetOrientation( static_cast< short >( (nAngle + 5) / 10 ) ); // Font uses 1/10 degrees + aFont.SetWeight( WEIGHT_BOLD ); + SetFont( aFont ); + + long nX = static_cast< long >( mnCenterX - fWidth * fCos - fHeight * fSin ); + long nY = static_cast< long >( mnCenterY + fWidth * fSin - fHeight * fCos ); + tools::Rectangle aRect( nX, nY, 2 * mnCenterX - nX, 2 * mnCenterY - nY ); + DrawText( aRect, rText, mbEnabled ? DrawTextFlags::NONE : DrawTextFlags::Disable ); + } + else + { + // only a line + const sal_Int32 nDx (fCos * (maRect.GetWidth()-4) / 2); + const sal_Int32 nDy (-fSin * (maRect.GetHeight()-4) / 2); + Point pt1( maRect.Center() ); + Point pt2( pt1.X() + nDx, pt1.Y() + nDy); + + SetLineColor( GetTextColor() ); + DrawLine( pt1, pt2 ); + } + + // *** drag button *** + + bool bMain = (nAngle % 4500) != 0; + SetLineColor( GetButtonLineColor() ); + SetFillColor( GetButtonFillColor( bMain ) ); + + long nX = mnCenterX - static_cast< long >( (DIAL_OUTER_WIDTH / 2 - mnCenterX) * fCos ); + long nY = mnCenterY - static_cast< long >( (mnCenterY - DIAL_OUTER_WIDTH / 2) * fSin ); + long nSize = bMain ? (DIAL_OUTER_WIDTH / 4) : (DIAL_OUTER_WIDTH / 2 - 1); + DrawEllipse( tools::Rectangle( nX - nSize, nY - nSize, nX + nSize, nY + nSize ) ); +} + +Color DialControlBmp::GetBackgroundColor() const +{ + return GetSettings().GetStyleSettings().GetDialogColor(); +} + +const Color& DialControlBmp::GetTextColor() const +{ + return GetSettings().GetStyleSettings().GetLabelTextColor(); +} + +const Color& DialControlBmp::GetScaleLineColor() const +{ + const StyleSettings& rSett = GetSettings().GetStyleSettings(); + return mbEnabled ? rSett.GetButtonTextColor() : rSett.GetDisableColor(); +} + +const Color& DialControlBmp::GetButtonLineColor() const +{ + const StyleSettings& rSett = GetSettings().GetStyleSettings(); + return mbEnabled ? rSett.GetButtonTextColor() : rSett.GetDisableColor(); +} + +const Color& DialControlBmp::GetButtonFillColor( bool bMain ) const +{ + const StyleSettings& rSett = GetSettings().GetStyleSettings(); + return mbEnabled ? (bMain ? rSett.GetMenuColor() : rSett.GetHighlightColor()) : rSett.GetDisableColor(); +} + +void DialControlBmp::Init() +{ + SetSettings(mrParent.GetSettings()); + SetBackground(GetBackgroundColor()); +} + +void DialControlBmp::SetSize( const Size& rSize ) +{ + maRect.SetPos( Point( 0, 0 ) ); + maRect.SetSize( rSize ); + mnCenterX = rSize.Width() / 2; + mnCenterY = rSize.Height() / 2; + SetOutputSize( rSize ); +} + +void DialControlBmp::DrawBackground() +{ + // *** background with 3D effect *** + + SetLineColor(); + SetFillColor(); + Erase(); + + EnableRTL(); // draw 3D effect in correct direction + + sal_uInt8 nDiff = mbEnabled ? 0x18 : 0x10; + Color aColor; + + aColor = GetBackgroundColor(); + SetFillColor( aColor ); + DrawPie( maRect, maRect.TopRight(), maRect.TopCenter() ); + DrawPie( maRect, maRect.BottomLeft(), maRect.BottomCenter() ); + + aColor.DecreaseLuminance( nDiff ); + SetFillColor( aColor ); + DrawPie( maRect, maRect.BottomCenter(), maRect.TopRight() ); + + aColor.DecreaseLuminance( nDiff ); + SetFillColor( aColor ); + DrawPie( maRect, maRect.BottomRight(), maRect.RightCenter() ); + + aColor = GetBackgroundColor(); + aColor.IncreaseLuminance( nDiff ); + SetFillColor( aColor ); + DrawPie( maRect, maRect.TopCenter(), maRect.BottomLeft() ); + + aColor.IncreaseLuminance( nDiff ); + SetFillColor( aColor ); + DrawPie( maRect, maRect.TopLeft(), maRect.LeftCenter() ); + + EnableRTL( false ); + + // *** calibration *** + + Point aStartPos( mnCenterX, mnCenterY ); + Color aFullColor( GetScaleLineColor() ); + Color aLightColor( GetBackgroundColor() ); + aLightColor.Merge( aFullColor, 128 ); + + for( int nAngle = 0; nAngle < 360; nAngle += 15 ) + { + SetLineColor( (nAngle % 45) ? aLightColor : aFullColor ); + double fAngle = basegfx::deg2rad(nAngle); + long nX = static_cast< long >( -mnCenterX * cos( fAngle ) ); + long nY = static_cast< long >( mnCenterY * sin( fAngle ) ); + DrawLine( aStartPos, Point( mnCenterX - nX, mnCenterY - nY ) ); + } + + // *** clear inner area *** + + SetLineColor(); + SetFillColor( GetBackgroundColor() ); + tools::Rectangle aEllipseRect = maRect; + aEllipseRect.shrink(DIAL_OUTER_WIDTH); + DrawEllipse( aEllipseRect ); +} + +DialControl::DialControl_Impl::DialControl_Impl(OutputDevice& rReference) : + mxBmpEnabled(VclPtr<DialControlBmp>::Create(rReference)), + mxBmpDisabled(VclPtr<DialControlBmp>::Create(rReference)), + mxBmpBuffered(VclPtr<DialControlBmp>::Create(rReference)), + mpLinkField( nullptr ), + mnLinkedFieldValueMultiplyer( 0 ), + mnAngle( 0 ), + mnInitialAngle( 0 ), + mnOldAngle( 0 ), + mnCenterX( 0 ), + mnCenterY( 0 ), + mbNoRot( false ) +{ +} + +void DialControl::DialControl_Impl::Init( const Size& rWinSize, const vcl::Font& rWinFont ) +{ + maWinFont = rWinFont; + maWinFont.SetTransparent(true); + mxBmpBuffered->InitBitmap(maWinFont); + SetSize(rWinSize); +} + +void DialControl::DialControl_Impl::SetSize( const Size& rWinSize ) +{ + // make the control squared, and adjusted so that we have a well-defined + // center ["(x - 1) | 1" creates odd value <= x] + long nMin = (std::min(rWinSize.Width(), rWinSize.Height()) - 1) | 1; + + maWinSize = Size( nMin, nMin ); + + mnCenterX = maWinSize.Width() / 2; + mnCenterY = maWinSize.Height() / 2; + + mxBmpEnabled->DrawBackground( maWinSize, true ); + mxBmpDisabled->DrawBackground( maWinSize, false ); + mxBmpBuffered->SetSize( maWinSize ); +} + +void DialControl::SetDrawingArea(weld::DrawingArea* pDrawingArea) +{ + CustomWidgetController::SetDrawingArea(pDrawingArea); + //use same logic as DialControl_Impl::SetSize + int nDim = (std::min<int>(pDrawingArea->get_approximate_digit_width() * 12, + pDrawingArea->get_text_height() * 6) - 1) | 1; + Size aSize(nDim, nDim); + pDrawingArea->set_size_request(aSize.Width(), aSize.Height()); + mpImpl.reset(new DialControl_Impl(pDrawingArea->get_ref_device())); + //set size and use that + Init(aSize); +} + +void DialControl::Resize() +{ + mpImpl->SetSize(GetOutputSizePixel()); + InvalidateControl(); +} + +void DialControl::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&) +{ + Point aPos; + rRenderContext.DrawBitmapEx(aPos, mpImpl->mxBmpBuffered->GetBitmapEx(aPos, mpImpl->maWinSize)); +} + +void DialControl::StyleUpdated() +{ + CustomWidgetController::StyleUpdated(); + Init( mpImpl->maWinSize, mpImpl->maWinFont ); + InvalidateControl(); +} + +bool DialControl::MouseButtonDown(const MouseEvent& rMEvt) +{ + if( rMEvt.IsLeft() ) + { + GrabFocus(); + CaptureMouse(); + mpImpl->mnOldAngle = mpImpl->mnAngle; + HandleMouseEvent( rMEvt.GetPosPixel(), true ); + } + return true; +} + +bool DialControl::MouseMove( const MouseEvent& rMEvt ) +{ + if( IsMouseCaptured() && rMEvt.IsLeft() ) + HandleMouseEvent( rMEvt.GetPosPixel(), false ); + return true; +} + +bool DialControl::MouseButtonUp(const MouseEvent&) +{ + if( IsMouseCaptured() ) + { + ReleaseMouse(); + if( mpImpl->mpLinkField ) + mpImpl->mpLinkField->grab_focus(); + } + return true; +} + +bool DialControl::KeyInput( const KeyEvent& rKEvt ) +{ + const vcl::KeyCode& rKCode = rKEvt.GetKeyCode(); + if( !rKCode.GetModifier() && (rKCode.GetCode() == KEY_ESCAPE) ) + { + HandleEscapeEvent(); + return true; + } + return CustomWidgetController::KeyInput(rKEvt); +} + +void DialControl::LoseFocus() +{ + // release captured mouse + HandleEscapeEvent(); +} + +bool DialControl::HasRotation() const +{ + return !mpImpl->mbNoRot; +} + +void DialControl::SetNoRotation() +{ + if( !mpImpl->mbNoRot ) + { + mpImpl->mbNoRot = true; + InvalidateControl(); + if (mpImpl->mpLinkField) + mpImpl->mpLinkField->set_text(""); + } +} + +sal_Int32 DialControl::GetRotation() const +{ + return mpImpl->mnAngle; +} + +void DialControl::SetRotation(sal_Int32 nAngle) +{ + SetRotation(nAngle, false); +} + +void DialControl::SetLinkedField(weld::MetricSpinButton* pField, sal_Int32 nDecimalPlaces) +{ + mpImpl->mnLinkedFieldValueMultiplyer = 100 / std::pow(10.0, double(nDecimalPlaces)); + + // remove modify handler from old linked field + if( mpImpl->mpLinkField ) + { + weld::MetricSpinButton& rField = *mpImpl->mpLinkField; + rField.connect_value_changed(Link<weld::MetricSpinButton&,void>()); + } + // remember the new linked field + mpImpl->mpLinkField = pField; + // set modify handler at new linked field + if( mpImpl->mpLinkField ) + { + weld::MetricSpinButton& rField = *mpImpl->mpLinkField; + rField.connect_value_changed(LINK(this, DialControl, LinkedFieldModifyHdl)); + } +} + +IMPL_LINK_NOARG(DialControl, LinkedFieldModifyHdl, weld::MetricSpinButton&, void) +{ + SetRotation(mpImpl->mpLinkField->get_value(FieldUnit::DEGREE) * mpImpl->mnLinkedFieldValueMultiplyer, true); +} + +void DialControl::SaveValue() +{ + mpImpl->mnInitialAngle = mpImpl->mnAngle; +} + +bool DialControl::IsValueModified() const +{ + return mpImpl->mnInitialAngle != mpImpl->mnAngle; +} + +void DialControl::Init( const Size& rWinSize, const vcl::Font& rWinFont ) +{ + mpImpl->Init( rWinSize, rWinFont ); + EnableRTL( false ); // don't mirror mouse handling + SetOutputSizePixel( mpImpl->maWinSize ); +} + +void DialControl::Init( const Size& rWinSize ) +{ + //hidpi TODO: GetDefaultFont() picks a font size too small, so fix it here. + vcl::Font aDefaultSize = Application::GetSettings().GetStyleSettings().GetLabelFont(); + + vcl::Font aFont( OutputDevice::GetDefaultFont( + DefaultFontType::UI_SANS, Application::GetSettings().GetUILanguageTag().getLanguageType(), GetDefaultFontFlags::OnlyOne ) ); + + aFont.SetFontHeight(aDefaultSize.GetFontHeight()); + Init( rWinSize, aFont ); +} + +void DialControl::InvalidateControl() +{ + mpImpl->mxBmpBuffered->CopyBackground( IsEnabled() ? *mpImpl->mxBmpEnabled : *mpImpl->mxBmpDisabled ); + if( !mpImpl->mbNoRot ) + mpImpl->mxBmpBuffered->DrawElements(GetText(), mpImpl->mnAngle); + Invalidate(); +} + +void DialControl::SetRotation(sal_Int32 nAngle, bool bBroadcast) +{ + bool bOldSel = mpImpl->mbNoRot; + mpImpl->mbNoRot = false; + + while (nAngle < 0) + nAngle += 36000; + + if (!bOldSel || (mpImpl->mnAngle != nAngle)) + { + mpImpl->mnAngle = nAngle; + InvalidateControl(); + if( mpImpl->mpLinkField ) + mpImpl->mpLinkField->set_value(GetRotation() / mpImpl->mnLinkedFieldValueMultiplyer, FieldUnit::DEGREE); + if( bBroadcast ) + mpImpl->maModifyHdl.Call(*this); + } +} + +void DialControl::SetModifyHdl( const Link<DialControl&,void>& rLink ) +{ + mpImpl->maModifyHdl = rLink; +} + +void DialControl::HandleMouseEvent( const Point& rPos, bool bInitial ) +{ + long nX = rPos.X() - mpImpl->mnCenterX; + long nY = mpImpl->mnCenterY - rPos.Y(); + double fH = sqrt( static_cast< double >( nX ) * nX + static_cast< double >( nY ) * nY ); + if( fH != 0.0 ) + { + double fAngle = acos( nX / fH ); + sal_Int32 nAngle = static_cast<sal_Int32>(basegfx::rad2deg(fAngle) * 100.0); + if( nY < 0 ) + nAngle = 36000 - nAngle; + if( bInitial ) // round to entire 15 degrees + nAngle = ((nAngle + 750) / 1500) * 1500; + // Round up to 1 degree + nAngle = (((nAngle + 50) / 100) * 100) % 36000; + SetRotation(nAngle, true); + } +} + +void DialControl::HandleEscapeEvent() +{ + if( IsMouseCaptured() ) + { + ReleaseMouse(); + SetRotation(mpImpl->mnOldAngle, true); + if( mpImpl->mpLinkField ) + mpImpl->mpLinkField->grab_focus(); + } +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |