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https://github.com/Const-me/Whisper.git
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Konstantin
118 lines
2.8 KiB
C++
118 lines
2.8 KiB
C++
#include "stdafx.h"
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#include "CircleIndicator.h"
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#include <atltypes.h>
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#include "AppState.h"
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namespace
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{
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static const LPCTSTR windowClassName = L"CircleIndicator";
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// Font with these symbols, shipped with Windows since forever:
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// https://learn.microsoft.com/en-us/typography/font-list/segoe-ui-symbol
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static const LPCTSTR fontName = L"Segoe UI Symbol";
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// Outlined circle
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static const LPCTSTR circleOutline = L"⚪";
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// Filled circle
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static const LPCTSTR circleFilled = L"⚫";
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// Font size for that symbol font, in points
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constexpr int fontSizePoints = 14;
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// Default active color for the indicator
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constexpr uint32_t defaultActiveColor = 0x7FFF7F;
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}
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CircleIndicator::CircleIndicator() :
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activeColor( defaultActiveColor )
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{ }
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ATL::CWndClassInfo& CircleIndicator::GetWndClassInfo()
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{
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// Use custom class style with CS_PARENTDC, and COLOR_3DFACE for the background
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static ATL::CWndClassInfo wc =
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{
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{ sizeof( WNDCLASSEX ),
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CS_HREDRAW | CS_VREDRAW | CS_PARENTDC,
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StartWindowProc,
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0, 0, NULL, NULL, NULL, (HBRUSH)( COLOR_3DFACE + 1 ), NULL, windowClassName, NULL },
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NULL, NULL, IDC_ARROW, TRUE, 0, _T( "" )
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};
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return wc;
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}
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// Class registration
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HRESULT CircleIndicator::registerClass()
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{
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WNDPROC pUnusedWndSuperProc = nullptr;
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ATOM a = GetWndClassInfo().Register( &pUnusedWndSuperProc );
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if( 0 != a )
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return S_OK;
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return getLastHr();
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}
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HRESULT CircleIndicator::createFont( int height )
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{
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LOGFONT logFont;
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memset( &logFont, 0, sizeof( logFont ) );
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logFont.lfHeight = height;
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logFont.lfCharSet = ANSI_CHARSET;
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logFont.lfOutPrecision = OUT_TT_PRECIS;
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logFont.lfClipPrecision = CLIP_DEFAULT_PRECIS;
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wcsncpy_s( logFont.lfFaceName, fontName, _TRUNCATE );
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font.CreateFontIndirect( &logFont );
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if( font )
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return S_OK;
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return E_FAIL;
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}
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void CircleIndicator::onDestroy()
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{
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if( font )
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font.DeleteObject();
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}
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void CircleIndicator::onPaint( CDCHandle dc )
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{
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CRect rectInt32;
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GetClientRect( &rectInt32 );
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CPaintDC pdc( m_hWnd );
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const int logPixels = pdc.GetDeviceCaps( LOGPIXELSY );
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int fontSize = -MulDiv( fontSizePoints, logPixels, 72 );
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if( !font || fontHeight != fontSize )
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{
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if( font )
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font.DeleteObject();
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HRESULT hr = createFont( fontSize );
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if( FAILED( hr ) )
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return;
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fontHeight = fontSize;
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}
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pdc.SetBkColor( GetSysColor( COLOR_3DFACE ) );
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pdc.SelectFont( font );
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pdc.SetBkMode( OPAQUE );
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constexpr UINT textFormat = DT_CENTER | DT_VCENTER;
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if( isActive )
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{
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pdc.SetTextColor( activeColor );
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pdc.DrawText( circleFilled, 1, rectInt32, textFormat );
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pdc.SetBkMode( TRANSPARENT );
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}
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pdc.SetTextColor( 0 );
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pdc.DrawText( circleOutline, 1, rectInt32, textFormat );
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}
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void CircleIndicator::setActive( bool nowActive )
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{
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if( nowActive == isActive )
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return;
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// Repaint the control
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isActive = nowActive;
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InvalidateRect( nullptr );
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} |