sitetext.cpp
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:13k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 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
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (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.
- *
- * 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 <X11/Xlib.h>
- #include <X11/Xutil.h>
- #include <X11/Intrinsic.h>
- #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 "sitemgr.h"
- #include "sitetext.h"
- //#include "pnmm.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
- // fwd declares
- typedef ULONG32 COLORTYPE;
- CHXSiteStatusText::CHXSiteStatusText()
- : m_lRefCount(0)
- , m_pSite(NULL)
- , m_pParentSite(NULL)
- , m_rgbBkgndColor(0x00008000)
- , m_rgbTextColor(0x0000FF00)
- , m_colormap(0)
- , m_display(0)
- , m_window(0)
- , m_statusfont(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;
- 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();
- m_pSite == NULL;
- }
- HX_RELEASE(m_pParentSite);
-
- return HXR_OK;
- }
-
- HX_RESULT CHXSiteStatusText::Show()
- {
- IHXSite2* pSite2 = NULL;
-
- if (GetIHXSite2(pSite2) == HXR_OK)
- {
- pSite2->ShowSite(TRUE);
- HX_RELEASE(pSite2);
- }
-
- BringToTop();
-
- 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()
- {
- HXxPoint parentPos;
- HXxSize parentSize;
- HX_RESULT res = HXR_FAIL;
-
- 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);
-
- if (!m_StatusText.IsEmpty())
- {
- BringToTop();
- }
- res = HXR_OK;
- }
- }
-
- return res;
- }
- void CHXSiteStatusText::SetStatusText(const char* pText)
- {
- m_StatusText = pText;
- if (m_StatusText.IsEmpty())
- {
- Hide();
- }
- else
- {
- 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;
- }
- HX_RESULT CHXSiteStatusText::_DrawStatusText(HXxEvent* pEvent)
- {
- HX_RESULT hr = HXR_OK;
- HX_ASSERT(pEvent);
- int direction;
- int ascent;
- int descent;
- XCharStruct overall;
- if (!m_pSite || m_statusSize.cx == 0)
- {
- return HXR_UNEXPECTED;
- }
- // if this is the first time in we should populate our data now
- if (m_display == NULL)
- {
- // first get the site's window
- IHXSiteWindowed* pSiteW = NULL;
- HX_VERIFY(HXR_OK == m_pSite->QueryInterface(IID_IHXSiteWindowed, (void**)&pSiteW));
-
- HXxWindow* pWindow = pSiteW->GetWindow();
- m_window = (Window) pWindow->window;
- m_display = (Display*) pWindow->display;
- int screenNumber = DefaultScreen(m_display);
- m_colormap = DefaultColormap(m_display, screenNumber);
- m_statusfont = XLoadQueryFont(m_display, "-adobe-helvetica-medium-r-*-*-12-*-*-*-*-*-*-*");
- HX_RELEASE(pSiteW);
- }
- // create the GC
- GC gc = XCreateGC(m_display, m_window, 0, 0);
- // get the GC values we will need
- unsigned long mask = GCForeground | GCBackground | GCClipXOrigin | GCClipYOrigin;
- XGCValues gcValues;
- memset(&gcValues, 0, sizeof(XGCValues));
- int r = XGetGCValues(m_display, gc, mask, &gcValues);
- // save off the color pixel values
- Pixel saveBG = gcValues.background;
- Pixel saveFG = gcValues.foreground;
- // convert color to Pixel values
- XColor bgXColor, fgXColor;
- ConvertRGBToXColor(m_rgbBkgndColor, bgXColor);
- ConvertRGBToXColor(m_rgbTextColor, fgXColor);
- // get color
- if (!XAllocColor(m_display, m_colormap, &bgXColor))
- {
- // default to first color (is this really enough?)
- bgXColor.pixel = 1;
- }
- if (!XAllocColor(m_display, m_colormap, &fgXColor))
- {
- // default to first color (is this really enough?)
- fgXColor.pixel = 1;
- }
- // get the size of our region
- HXxSize sz;
- m_pSite->GetSize(sz);
- // keep a local copy of status text in case we need to add an elipsis
- CHXString statusText = m_StatusText;
- int nStrLen = statusText.GetLength();
- char* pStr = statusText.GetBuffer(statusText.GetLength()+1);
- // get size of elipsis
- XTextExtents(m_statusfont, ELIPSIS, strlen(ELIPSIS), &direction, &ascent, &descent, &overall);
- int nElipsisLen = (overall.lbearing + overall.rbearing);
- XTextExtents(m_statusfont, pStr, nStrLen, &direction, &ascent, &descent, &overall);
- int nWidth = (overall.lbearing + overall.rbearing);
- while (nWidth > m_statusSize.cx - DEF_HORZ_GUTTER && nStrLen > 0)
- {
- nStrLen--;
- XTextExtents(m_statusfont, pStr, nStrLen, &direction, &ascent, &descent, &overall);
- nWidth = (overall.lbearing + overall.rbearing);
- }
- if (nStrLen < statusText.GetLength())
- {
- statusText = statusText.Left(nStrLen);
- statusText += ELIPSIS;
- nStrLen += ELIPSIS_LEN;
- }
-
- int nHeight = (int)((double)DEF_TEXT_HEIGHT * POINTS_TO_PIXELS);
- int nX = max(0, (m_statusSize.cx - nWidth) / 2);
- int nY = ((int)((double)m_statusSize.cy / 2 + (double)DEF_TEXT_HEIGHT/ 2)) + m_statusPos.y;
- // set our colors into the gc
- XSetBackground(m_display, gc, fgXColor.pixel);
- XSetForeground(m_display, gc, bgXColor.pixel);
- // fill first then draw text
- XFillRectangle(m_display, m_window, gc,
- m_statusPos.x,
- m_statusPos.y,
- m_statusSize.cx,
- m_statusSize.cy);
- XSetBackground(m_display, gc, bgXColor.pixel);
- XSetForeground(m_display, gc, fgXColor.pixel);
- // draw string
- XDrawImageString(m_display, m_window, gc, nX, nY, (const char*) statusText, statusText.GetLength());
- // reset orig. colors
- XSetBackground(m_display, gc, saveBG);
- XSetForeground(m_display, gc, saveFG);
- // clean up colors
- unsigned long pixels[2];
- pixels[0] = bgXColor.pixel;
- pixels[1] = fgXColor.pixel;
- XFreeColors(m_display, m_colormap, pixels, 2, 0);
- // release GC
- XFreeGC(m_display, gc);
- return hr;
- }
- BOOL CHXSiteStatusText::ConvertRGBToXColor(HXxColor& hxxColor, XColor& xcolor)
- {
- // assume starting with a new XColor
- memset(&xcolor, 0, sizeof(XColor));
-
- // separate r,g and b
- UINT16 t;
- t = (hxxColor & 0x00ff0000) >> 16;
- xcolor.blue = t << 8;
-
- t = (hxxColor & 0x0000ff00) >> 8;
- xcolor.green = t << 8;
-
- t = (hxxColor & 0x000000ff);
- xcolor.red = t << 8;
-
- //color.pixel = n;
- xcolor.flags = DoRed | DoGreen | DoBlue;
- return TRUE;
- }
- 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;
- }