sitetext.cpp
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: sitetext.cpp,v 1.3.20.1 2004/07/09 01:59:02 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file,
- * are subject to the current version of the RealNetworks Public
- * Source License (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (the "RCSL") available at
- * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
- * will apply. You may also obtain the license terms directly from
- * RealNetworks. You may not use this file except in compliance with
- * the RPSL or, if you have a valid RCSL with RealNetworks applicable
- * to this file, the RCSL. Please see the applicable RPSL or RCSL for
- * the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the
- * portions it created.
- *
- * This file, and the files included with this file, is distributed
- * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
- * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
- * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
- * ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hxcom.h"
- #include "hxtypes.h"
- #include "hxwintyp.h"
- #include "hxmap.h"
- #include "hxslist.h"
- #include "ihxpckts.h"
- #include "hxwin.h"
- #include "hxengin.h"
- #include "hxsite2.h"
- #include "chxxtype.h"
- #include "hxvctrl.h"
- #include "hxvsurf.h"
- #include "hxcodec.h"
- #include "surface.h"
- #include "vidosurf.h"
- #include "chxpckts.h"
- #include "hxevent.h"
- #include "sitetext.h"
- #include "platform/mac/hx_moreprocesses.h"
- #define DEF_TEXT_HEIGHT 12
- #define POINTS_TO_PIXELS 1.5
- #define DEF_TEXT_GUTTER 1.2
- #define DEF_STAT_HEIGHT (int)((double)DEF_TEXT_HEIGHT * POINTS_TO_PIXELS * DEF_TEXT_GUTTER)
- #define DEF_HORZ_GUTTER 4
- #define ELIPSIS "..."
- #define ELIPSIS_LEN 3
- CHXSiteStatusText::CHXSiteStatusText()
- : m_lRefCount(0)
- , m_pSite(NULL)
- , m_pParentSite(NULL)
- , m_rgbBkgndColor(0x00008000)
- , m_rgbTextColor(0x0000FF00)
- , m_pStatusImage(NULL)
- {
- memset(&m_statusPos, 0, sizeof(HXxPoint));
- memset(&m_statusSize, 0, sizeof(HXxSize));
- }
-
- CHXSiteStatusText::~CHXSiteStatusText()
- {
- Destroy(); // make sure we cleanup
- }
- HX_RESULT
- CHXSiteStatusText::Create(IHXSite* pSite)
- {
- IHXSite* pChildSite = NULL;
- HX_RESULT hr = HXR_FAIL;
-
- HX_ASSERT(pSite);
- HX_ASSERT(!m_pSite);
-
- // keep a ref while we use the parent site
- pSite->AddRef();
-
- if (pSite->CreateChild(pChildSite) == HXR_OK)
- {
- if (pChildSite->AttachUser(this) == HXR_OK)
- {
- m_pParentSite = pSite;
- HX_ASSERT(m_StatusText.IsEmpty());
-
- if (m_StatusText.IsEmpty())
- {
- Hide(); // keep hidden until we have status text
- }
- else
- {
- Show();
- }
- UpdatePosition();
- hr = HXR_OK;
- }
- HX_RELEASE(pChildSite);
- }
- // release if we failed
- if (hr != HXR_OK)
- {
- HX_RELEASE(pSite);
- }
- return hr;
- }
- HX_RESULT
- CHXSiteStatusText::Destroy()
- {
- if (m_pSite)
- {
- if (m_pParentSite)
- {
- m_pParentSite->DestroyChild(m_pSite);
- }
- // DetachUser will call DetachSite, which will release m_pSite
- m_pSite->DetachUser();
-
- }
- HX_RELEASE(m_pParentSite);
-
- HX_DELETE(m_pStatusImage);
-
- return HXR_OK;
- }
-
- HX_RESULT
- CHXSiteStatusText::Show()
- {
- IHXSite2* pSite2 = NULL;
-
- if (GetIHXSite2(pSite2) == HXR_OK)
- {
- pSite2->ShowSite(TRUE);
- HX_RELEASE(pSite2);
- }
-
- return HXR_OK;
- }
- HX_RESULT
- CHXSiteStatusText::Hide()
- {
- IHXSite2* pSite2 = NULL;
-
- if (GetIHXSite2(pSite2) == HXR_OK)
- {
- pSite2->ShowSite(FALSE);
- HX_RELEASE(pSite2);
- }
-
- return HXR_OK;
- }
- HX_RESULT
- CHXSiteStatusText::ParentChangedSize()
- {
- UpdatePosition();
- return HXR_OK;
- }
- HX_RESULT
- CHXSiteStatusText::BringToTop()
- {
- IHXSite2* pSite2 = NULL;
-
- if (GetIHXSite2(pSite2) == HXR_OK)
- {
- pSite2->MoveSiteToTop();
- HX_RELEASE(pSite2);
- }
-
- return HXR_OK;
- }
- HX_RESULT
- CHXSiteStatusText::UpdatePosition()
- {
- HX_RESULT hr = HXR_FAIL;
- HXxPoint parentPos;
- HXxSize parentSize;
-
- if (m_pParentSite && m_pSite)
- {
- if (m_pParentSite->GetSize(parentSize) == HXR_OK &&
- m_pParentSite->GetPosition(parentPos) == HXR_OK)
- {
- // call platform-specific code to adjust the position & size
- // of our site (since fonts may require different heights on
- // different platforms
- _AdjustPosition(&parentPos, &parentSize);
-
- m_pSite->SetPosition(m_statusPos);
- m_pSite->SetSize(m_statusSize);
- }
- }
-
- return HXR_OK;
- }
- void
- CHXSiteStatusText::SetStatusText(const char* pText)
- {
- CHXString oldStatusText = m_StatusText;
- m_StatusText = pText;
-
- if (m_StatusText != oldStatusText)
- {
- if (m_StatusText.IsEmpty())
- {
- Hide();
- }
- else
- {
- if (m_pSite)
- {
- m_pSite->ForceRedraw();
- }
- if (oldStatusText.IsEmpty())
- {
- BringToTop();
- Show();
- }
- }
- }
- }
-
- STDMETHODIMP
- CHXSiteStatusText::QueryInterface(REFIID riid, void** ppvObj)
- {
- if (riid == IID_IHXSiteUser)
- {
- *ppvObj = (IHXSiteUser*)this;
- AddRef();
- return HXR_OK;
- }
- if (riid == IID_IHXSiteWatcher)
- {
- *ppvObj = (IHXSiteWatcher*)this;
- AddRef();
- return HXR_OK;
- }
- else if (riid == IID_IUnknown)
- {
- *ppvObj = (IUnknown*)(IHXSiteUser*)this;
- AddRef();
- return HXR_OK;
- }
-
- return HXR_FAIL;
- }
- STDMETHODIMP_(ULONG32)
- CHXSiteStatusText::AddRef()
- {
- return InterlockedIncrement(&m_lRefCount);
- }
- STDMETHODIMP_(ULONG32)
- CHXSiteStatusText::Release()
- {
- if (InterlockedDecrement(&m_lRefCount) > 0)
- {
- return m_lRefCount;
- }
-
- delete this;
- return 0;
- }
- STDMETHODIMP
- CHXSiteStatusText::AttachSite(IHXSite* /*IN*/ pSite)
- {
- HX_RESULT hr = HXR_FAIL;
-
- if (!m_pSite)
- {
- m_pSite = pSite;
- m_pSite->AddRef();
- hr = HXR_OK;
- }
-
- return hr;
- }
- STDMETHODIMP
- CHXSiteStatusText::DetachSite()
- {
- HX_RESULT hr = HXR_FAIL;
-
- if (m_pSite)
- {
- HX_RELEASE(m_pSite);
- hr = HXR_OK;
- }
-
- return hr;
- }
- STDMETHODIMP
- CHXSiteStatusText::HandleEvent(HXxEvent* /*IN*/ pEvent)
- {
- HX_RESULT hr = HXR_OK;
-
- if (pEvent->event == HX_SURFACE_UPDATE)
- {
- _DrawStatusText(pEvent);
- }
-
- return hr;
- }
- STDMETHODIMP_(BOOL)
- CHXSiteStatusText::NeedsWindowedSites()
- {
- return false;
- }
- HX_RESULT
- CHXSiteStatusText::GetIHXSite2(REF(IHXSite2*) pSite2)
- {
- HX_RESULT hr = HXR_FAIL;
-
- if (m_pSite)
- {
- hr = m_pSite->QueryInterface(IID_IHXSite2, (void**)&pSite2);
- }
-
- return hr;
- }
- void ConvertHXxColorToRGBColor(HXxColor& pnx, RGBColor& rgb)
- {
- unsigned short red, blue, green;
- red = ((unsigned char*)&pnx)[1];
- green = ((unsigned char*)&pnx)[2];
- blue = ((unsigned char*)&pnx)[3];
-
- rgb.red = red | (red << 8);
- rgb.green = green | (green << 8);
- rgb.blue = blue | (blue << 8);
- }
- HX_RESULT
- CHXSiteStatusText::_DrawStatusText(HXxEvent* pEvent)
- {
- // this function is called internally and this will never be null
- HX_ASSERT(pEvent);
- // XXXNH: the status text does not support drawing at interrupt time
- if (!IsMacInCooperativeThread())
- {
- return HXR_FAIL;
- }
-
- pEvent->handled = TRUE;
- pEvent->result = HXR_OK;
- // The rect for our status message
- HXxSize sz;
- m_pSite->GetSize(sz);
- Rect theRect;
- ::SetRect(&theRect, 0, 0, sz.cx, sz.cy);
-
- if (!m_pStatusImage || (sizeof(m_pStatusImage) < m_statusSize.cy * m_statusSize.cx * 4))
- {
- HX_DELETE(m_pStatusImage);
- m_pStatusImage = new BYTE[m_statusSize.cy * m_statusSize.cx * 4];
- }
-
- // create offscreen graphics world
- GWorldPtr offscreenGWorld;
- PixMapHandle hPixMap = NULL;
- long theRowBytes = sz.cx * 4;
-
- OSType thePixelFormat = k32BGRAPixelFormat;
- OSErr err = noErr;
-
- err = NewGWorldFromPtr(
- &offscreenGWorld,
- thePixelFormat,
- &theRect,
- NULL, // color table
- NULL, // GDevice handle
- 0, // flags
- (Ptr)m_pStatusImage,
- theRowBytes);
- HX_ASSERT(err == noErr);
-
- // set offscreen graphics world:
- GDHandle hGDSave;
- CGrafPtr pCGrafSave;
- ::GetGWorld(&pCGrafSave, &hGDSave);
- ::SetGWorld(offscreenGWorld, NULL);
-
- // update clip region to this site's bounds
- RgnHandle theNewClipRgn = ::NewRgn();
- ::RectRgn(theNewClipRgn, &theRect);
- ::SetClip(theNewClipRgn);
- ::DisposeRgn(theNewClipRgn);
-
- // convert our fg & bg colors
- RGBColor bgColor;
- ConvertHXxColorToRGBColor(m_rgbBkgndColor, bgColor);
- RGBColor fgColor;
- ConvertHXxColorToRGBColor(m_rgbTextColor, fgColor);
-
- // Draw the background rect
- ::RGBBackColor(&bgColor);
- ::RGBForeColor(&bgColor);
- ::PaintRect(&theRect);
-
- ::RGBBackColor(&bgColor);
- ::RGBForeColor(&fgColor);
-
- // pick the font, center it and draw it
- short nFontId = 0;
- GetFNum("pHelvetica", &nFontId);
- TextFont(nFontId);
- int nSize = DEF_TEXT_HEIGHT;
- TextSize(nSize);
-
- // keep a local copy of status text in case we need to add an elipsis
- CHXString statusText = m_StatusText;
- int nStrLen = statusText.GetLength();
- const char* pStr = statusText;
-
- int nElipsisLen = TextWidth(ELIPSIS, 0, ELIPSIS_LEN);
- int nWidth = TextWidth(pStr, 0, nStrLen);
- while (nWidth > m_statusSize.cx - DEF_HORZ_GUTTER && nStrLen > 0)
- {
- nStrLen--;
- nWidth = TextWidth(pStr, 0, nStrLen) + nElipsisLen;
- }
- if (nStrLen < statusText.GetLength())
- {
- statusText = statusText.Left(nStrLen);
- statusText += ELIPSIS;
- nStrLen += ELIPSIS_LEN;
- pStr = statusText;
- }
-
- int nHeight = (int)((double)nSize * POINTS_TO_PIXELS);
- int nX = max(0, (m_statusSize.cx - nWidth) / 2);
- int nY = (int)((double)m_statusSize.cy / 2 + (double)nSize / 2);
- ::MoveTo(nX, nY);
-
- ::TextMode(srcCopy);
- ::DrawText(pStr, 0, nStrLen);
-
- // switch port
- ::SetGWorld(pCGrafSave, hGDSave);
- ::DisposeGWorld(offscreenGWorld);
-
- IHXVideoSurface* pVideoSurface = (IHXVideoSurface*)pEvent->param1;
-
- if (!pVideoSurface)
- {
- return HXR_FAIL;
- }
-
- pVideoSurface->AddRef();
-
- HXxRect rDestRect;
- rDestRect.left = 0;
- rDestRect.top = 0;
- rDestRect.right = sz.cx;
- rDestRect.bottom = sz.cy;
-
- HXxRect rSrcRect = rDestRect;
-
- HXBitmapInfoHeader bitmapInfoHeader;
- bitmapInfoHeader.biSize = sizeof(HXBitmapInfoHeader);
- bitmapInfoHeader.biWidth = sz.cx;
- bitmapInfoHeader.biHeight = sz.cy;
- bitmapInfoHeader.biPlanes = 1;
- bitmapInfoHeader.biBitCount = 32;
- bitmapInfoHeader.biCompression = HX_RGB;
- bitmapInfoHeader.biSizeImage = sz.cx * sz.cy * 4;
- bitmapInfoHeader.biXPelsPerMeter = 0;
- bitmapInfoHeader.biYPelsPerMeter = 0;
- bitmapInfoHeader.biClrUsed = 0;
- bitmapInfoHeader.biClrImportant = 0;
- bitmapInfoHeader.rcolor = 0;
- bitmapInfoHeader.gcolor = 0;
- bitmapInfoHeader.bcolor = 0;
-
- pEvent->result = pVideoSurface->Blt(m_pStatusImage, &bitmapInfoHeader, rDestRect, rSrcRect);
-
- pVideoSurface->Release();
-
- return pEvent->result;
- }
- HX_RESULT
- CHXSiteStatusText::_AdjustPosition(HXxPoint* pParentPos, HXxSize* pParentSize)
- {
- HX_RESULT hr = HXR_OK;
- // this function is called internally and these will never be null
- HX_ASSERT(pParentPos && pParentSize);
-
- // take the max width of the parent site
- m_statusPos.x = 0;
- m_statusSize.cx = pParentSize->cx;
-
- // take at most the bottom DEF_STAT_HEIGHT pixels of the parent site
- m_statusPos.y = max(pParentSize->cy - DEF_STAT_HEIGHT, 0);
- m_statusSize.cy = pParentSize->cy - m_statusPos.y;
-
- return hr;
- }