diff options
Diffstat (limited to 'src/ui/LCDUI/LCDGfx.cpp')
| -rw-r--r-- | src/ui/LCDUI/LCDGfx.cpp | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/src/ui/LCDUI/LCDGfx.cpp b/src/ui/LCDUI/LCDGfx.cpp new file mode 100644 index 000000000..480a27793 --- /dev/null +++ b/src/ui/LCDUI/LCDGfx.cpp @@ -0,0 +1,342 @@ +//************************************************************************
+//
+// LCDGfx.cpp
+//
+// The CLCDGfx class abstracts GDI/bitmap details. It is used in the
+// OnDraw event.
+//
+// Logitech LCD SDK
+//
+// Copyright 2005 Logitech Inc.
+//************************************************************************
+
+#include "LCDGfx.h"
+
+
+//************************************************************************
+//
+// CLCDGfx::CLCDGfx
+//
+//************************************************************************
+
+CLCDGfx::CLCDGfx(void)
+: m_nWidth(0),
+ m_nHeight(0),
+ m_pLCDScreen(NULL),
+ m_pBitmapInfo(NULL),
+ m_hDC(NULL),
+ m_hBitmap(NULL),
+ m_hPrevBitmap(NULL),
+ m_pBitmapBits(NULL)
+{
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::~CLCDGfx
+//
+//************************************************************************
+
+CLCDGfx::~CLCDGfx(void)
+{
+ Shutdown();
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::Initialize
+//
+//************************************************************************
+
+HRESULT CLCDGfx::Initialize(int nWidth, int nHeight)
+{
+ m_nWidth = nWidth;
+ m_nHeight = nHeight;
+
+ m_hDC = CreateCompatibleDC(NULL);
+ if(NULL == m_hDC)
+ {
+ LCDUITRACE(_T("CLCDGfx::Initialize(): failed to create compatible DC.\n"));
+ Shutdown();
+ return E_FAIL;
+ }
+
+ int nBMISize = sizeof(BITMAPINFO) + 256 * sizeof(RGBQUAD);
+ m_pBitmapInfo = (BITMAPINFO *) new BYTE [nBMISize];
+ if(NULL == m_pBitmapInfo)
+ {
+ LCDUITRACE(_T("CLCDGfx::Initialize(): failed to allocate bitmap info.\n"));
+ Shutdown();
+ return E_OUTOFMEMORY;
+ }
+
+ ZeroMemory(m_pBitmapInfo, nBMISize);
+ m_pBitmapInfo->bmiHeader.biSize = sizeof(m_pBitmapInfo->bmiHeader);
+ m_pBitmapInfo->bmiHeader.biWidth = m_nWidth;
+ m_pBitmapInfo->bmiHeader.biHeight = -m_nHeight;
+ m_pBitmapInfo->bmiHeader.biPlanes = 1;
+ m_pBitmapInfo->bmiHeader.biBitCount = 8;
+ m_pBitmapInfo->bmiHeader.biCompression = BI_RGB;
+ m_pBitmapInfo->bmiHeader.biSizeImage =
+ (m_nWidth *
+ m_nHeight *
+ m_pBitmapInfo->bmiHeader.biBitCount) / 8;
+ m_pBitmapInfo->bmiHeader.biXPelsPerMeter = 3200;
+ m_pBitmapInfo->bmiHeader.biYPelsPerMeter = 3200;
+ m_pBitmapInfo->bmiHeader.biClrUsed = 256;
+ m_pBitmapInfo->bmiHeader.biClrImportant = 256;
+
+ for(int nColor = 0; nColor < 256; ++nColor)
+ {
+ m_pBitmapInfo->bmiColors[nColor].rgbRed = (BYTE)((nColor > 128) ? 255 : 0);
+ m_pBitmapInfo->bmiColors[nColor].rgbGreen = (BYTE)((nColor > 128) ? 255 : 0);
+ m_pBitmapInfo->bmiColors[nColor].rgbBlue = (BYTE)((nColor > 128) ? 255 : 0);
+ m_pBitmapInfo->bmiColors[nColor].rgbReserved = 0;
+ }
+
+ m_hBitmap = CreateDIBSection(m_hDC, m_pBitmapInfo, DIB_RGB_COLORS, (PVOID *) &m_pBitmapBits, NULL, 0);
+ if(NULL == m_hBitmap)
+ {
+ LCDUITRACE(_T("CLCDGfx::Initialize(): failed to create bitmap.\n"));
+ Shutdown();
+ return E_FAIL;
+ }
+
+ m_pLCDScreen = new lgLcdBitmap160x43x1;
+ if(NULL == m_pLCDScreen)
+ {
+ LCDUITRACE(_T("CLCDGfx::Initialize(): failed to allocate the lcd screen structure.\n"));
+ Shutdown();
+ return E_OUTOFMEMORY;
+ }
+
+ return S_OK;
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::Shutdown
+//
+//************************************************************************
+
+void CLCDGfx::Shutdown(void)
+{
+ if(NULL != m_pLCDScreen)
+ {
+ delete m_pLCDScreen;
+ m_pLCDScreen = NULL;
+ }
+
+ if(NULL != m_hBitmap)
+ {
+ DeleteObject(m_hBitmap);
+ m_hBitmap = NULL;
+ m_pBitmapBits = NULL;
+ }
+
+ LCDUIASSERT(NULL == m_hPrevBitmap);
+ m_hPrevBitmap = NULL;
+
+ if(NULL != m_pBitmapInfo)
+ {
+ delete [] m_pBitmapInfo;
+ m_pBitmapInfo = NULL;
+ }
+
+ if(NULL != m_hDC)
+ {
+ DeleteDC(m_hDC);
+ m_hDC = NULL;
+ }
+
+ m_nWidth = 0;
+ m_nHeight = 0;
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::BeginDraw
+//
+//************************************************************************
+
+void CLCDGfx::BeginDraw(void)
+{
+ LCDUIASSERT(NULL != m_hBitmap);
+ LCDUIASSERT(NULL == m_hPrevBitmap);
+ if(NULL == m_hPrevBitmap)
+ {
+ m_hPrevBitmap = (HBITMAP) SelectObject(m_hDC, m_hBitmap);
+ SetTextColor(m_hDC, RGB(255, 255, 255));
+ SetBkColor(m_hDC, RGB(0, 0, 0));
+ }
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::ClearScreen
+//
+//************************************************************************
+
+void CLCDGfx::ClearScreen(void)
+{
+ // this means, we're inside BeginDraw()/EndDraw()
+ LCDUIASSERT(NULL != m_hPrevBitmap);
+ RECT rc = { 0, 0, m_nWidth, m_nHeight };
+ FillRect(m_hDC, &rc, (HBRUSH) GetStockObject(BLACK_BRUSH));
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::SetPixel
+//
+//************************************************************************
+
+void CLCDGfx::SetPixel(int nX, int nY, BYTE bValue)
+{
+ // this means, we're inside BeginDraw()/EndDraw()
+ LCDUIASSERT(NULL != m_hPrevBitmap);
+ ::SetPixel(m_hDC, nX, nY, bValue ? RGB(255, 255, 255) : RGB(0, 0, 0));
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::DrawLine
+//
+//************************************************************************
+
+void CLCDGfx::DrawLine(int nX1, int nY1, int nX2, int nY2)
+{
+ // this means, we're inside BeginDraw()/EndDraw()
+ LCDUIASSERT(NULL != m_hPrevBitmap);
+
+ HPEN hPrevPen = (HPEN) SelectObject(m_hDC, GetStockObject(WHITE_PEN));
+ ::MoveToEx(m_hDC, nX1, nY1, NULL);
+ ::LineTo(m_hDC, nX2, nY2);
+ SelectObject(m_hDC, hPrevPen);
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::DrawFilledRect
+//
+//************************************************************************
+
+void CLCDGfx::DrawFilledRect(int nX, int nY, int nWidth, int nHeight)
+{
+ // this means, we're inside BeginDraw()/EndDraw()
+ LCDUIASSERT(NULL != m_hPrevBitmap);
+
+ HBRUSH hPrevBrush = (HBRUSH) SelectObject(m_hDC, GetStockObject(WHITE_BRUSH));
+ RECT r = { nX, nY, nX + nWidth, nY + nHeight };
+ ::FillRect(m_hDC, &r, hPrevBrush);
+ SelectObject(m_hDC, hPrevBrush);
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::DrawText
+//
+//************************************************************************
+
+void CLCDGfx::DrawText(int nX, int nY, LPCTSTR sText)
+{
+ // map mode text, with transparency
+ int nOldMapMode = SetMapMode(m_hDC, MM_TEXT);
+ int nOldBkMode = SetBkMode(m_hDC, TRANSPARENT);
+
+ ::TextOut(m_hDC, nX, nY, sText, (int)_tcslen(sText));
+
+ // restores
+ SetMapMode(m_hDC, nOldMapMode);
+ SetBkMode(m_hDC, nOldBkMode);
+
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::EndDraw
+//
+//************************************************************************
+
+void CLCDGfx::EndDraw(void)
+{
+ LCDUIASSERT(NULL != m_hPrevBitmap);
+ if(NULL != m_hPrevBitmap)
+ {
+ GdiFlush();
+ m_hPrevBitmap = (HBITMAP) SelectObject(m_hDC, m_hPrevBitmap);
+ LCDUIASSERT(m_hPrevBitmap == m_hBitmap);
+ m_hPrevBitmap = NULL;
+ }
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::GetHDC
+//
+//************************************************************************
+
+HDC CLCDGfx::GetHDC(void)
+{
+ LCDUIASSERT(NULL != m_hDC);
+ return m_hDC;
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::GetLCDScreen
+//
+//************************************************************************
+
+lgLcdBitmap160x43x1 *CLCDGfx::GetLCDScreen(void)
+{
+ LCDUIASSERT(NULL != m_pLCDScreen);
+ if(NULL != m_pLCDScreen)
+ {
+ m_pLCDScreen->hdr.Format = LGLCD_BMP_FORMAT_160x43x1;
+ memcpy(m_pLCDScreen->pixels, m_pBitmapBits, m_nWidth * m_nHeight);
+ }
+
+ return m_pLCDScreen;
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::GetBitmapInfo
+//
+//************************************************************************
+
+BITMAPINFO *CLCDGfx::GetBitmapInfo(void)
+{
+ LCDUIASSERT(NULL != m_pBitmapInfo);
+ return m_pBitmapInfo;
+}
+
+
+//************************************************************************
+//
+// CLCDGfx::GetHBITMAP
+//
+//************************************************************************
+
+HBITMAP CLCDGfx::GetHBITMAP(void)
+{
+ LCDUIASSERT(NULL != m_hBitmap);
+ return m_hBitmap;
+}
+
+
+//** end of LCDGfx.cpp ***************************************************
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