зеркало из https://github.com/mozilla/gecko-dev.git
making dev context use screen manager to get info about the screen. r=sfraser.
This commit is contained in:
pinkerton%netscape.com
Родитель
e17aeaff6f
Коммит
32b9f26794
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@ -39,23 +39,24 @@
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#include "nsQuickSort.h"
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#include "nsUnicodeMappingUtil.h"
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#include "nsCarbonHelpers.h"
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#include "nsRegionMac.h"
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#include "nsIScreenManager.h"
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#include "nsIServiceManager.h"
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PRUint32 nsDeviceContextMac::mPixelsPerInch = 96;
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PRBool nsDeviceContextMac::mDisplayVerySmallFonts = true;
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PRUint32 nsDeviceContextMac::sNumberOfScreens = 0;
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static NS_DEFINE_IID(kDeviceContextIID, NS_IDEVICE_CONTEXT_IID);
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/** ---------------------------------------------------
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* See documentation in nsIDeviceContext.h
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* @update 12/9/98 dwc
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*/
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nsDeviceContextMac :: nsDeviceContextMac()
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: mSpec(nsnull), mSurface(nsnull), mOldPort(nsnull)
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{
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NS_INIT_REFCNT();
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mSpec = nsnull;
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}
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@ -73,18 +74,19 @@ nsDeviceContextMac :: ~nsDeviceContextMac()
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*/
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NS_IMETHODIMP nsDeviceContextMac :: Init(nsNativeWidget aNativeWidget)
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{
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GDHandle thegd;
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PixMapHandle thepix;
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double pix_inch;
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// cache the screen manager service for later
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nsresult ignore;
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mScreenManager = do_GetService("component://netscape/gfx/screenmanager", &ignore);
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NS_ASSERTION ( mScreenManager, "No screen manager, we're in trouble" );
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if ( !mScreenManager )
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return NS_ERROR_FAILURE;
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// this is a windowptr, or grafptr, native to macintosh only
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mSurface = aNativeWidget;
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// figure out how many monitors there are.
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if ( !sNumberOfScreens )
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mScreenManager->GetNumberOfScreens(&sNumberOfScreens);
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// get depth and resolution
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thegd = ::GetMainDevice();
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thepix = (**thegd).gdPMap; // dereferenced handle: don't move memory below!
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mDepth = (**thepix).pixelSize;
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pix_inch = GetScreenResolution(); //Fix2X((**thepix).hRes);
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// get resolution
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double pix_inch = GetScreenResolution(); //Fix2X((**thepix).hRes);
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mTwipsToPixels = pix_inch/(float)NSIntPointsToTwips(72);
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mPixelsToTwips = 1.0f/mTwipsToPixels;
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@ -275,7 +277,16 @@ NS_IMETHODIMP nsDeviceContextMac :: GetDrawingSurface(nsIRenderingContext &aCont
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*/
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NS_IMETHODIMP nsDeviceContextMac::GetDepth(PRUint32& aDepth)
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{
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aDepth = mDepth;
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nsCOMPtr<nsIScreen> screen;
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FindScreenForSurface ( getter_AddRefs(screen) );
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if ( screen ) {
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PRInt32 depth;
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screen->GetPixelDepth ( &depth );
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aDepth = NS_STATIC_CAST ( PRUint32, depth );
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}
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else
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aDepth = 1;
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return NS_OK;
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}
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@ -346,27 +357,104 @@ NS_IMETHODIMP nsDeviceContextMac :: CheckFontExistence(const nsString& aFontName
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return NS_ERROR_FAILURE;
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}
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//
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// FindScreenForSurface
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//
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// Determines which screen intersects the largest area of the given surface.
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//
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void
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nsDeviceContextMac :: FindScreenForSurface ( nsIScreen** outScreen )
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{
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// optimize for the case where we only have one monitor.
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static nsCOMPtr<nsIScreen> sPrimaryScreen;
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if ( !sPrimaryScreen && mScreenManager )
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mScreenManager->GetPrimaryScreen ( getter_AddRefs(sPrimaryScreen) );
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if ( sNumberOfScreens == 1 ) {
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NS_IF_ADDREF(*outScreen = sPrimaryScreen.get());
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return;
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}
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GrafPtr savedPort;
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::GetPort ( &savedPort );
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// we have a widget stashed inside, get a native WindowRef out of it
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nsIWidget* widget = reinterpret_cast<nsIWidget*>(mWidget); // PRAY!
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NS_ASSERTION ( widget, "No Widget --> No Window" );
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if ( !widget ) {
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NS_IF_ADDREF(*outScreen = sPrimaryScreen.get()); // bail out with the main screen just to be safe.
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return;
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}
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WindowRef window = reinterpret_cast<WindowRef>(widget->GetNativeData(NS_NATIVE_DISPLAY));
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Rect bounds;
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::GetWindowPortBounds ( window, &bounds );
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nsresult rv = NS_OK;
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if ( mScreenManager ) {
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if ( !(bounds.top || bounds.left || bounds.bottom || bounds.right) ) {
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NS_WARNING ( "trying to find screen for sizeless window" );
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NS_IF_ADDREF(*outScreen = sPrimaryScreen.get());
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}
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else {
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// convert window bounds to global coordinates
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Point topLeft = { bounds.top, bounds.left };
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Point bottomRight = { bounds.bottom, bounds.right };
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::LocalToGlobal ( &topLeft );
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::LocalToGlobal ( &bottomRight );
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Rect globalWindowBounds = { topLeft.v, topLeft.h, bottomRight.v, bottomRight.h } ;
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// subtract out the height of title bar from the size
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StRegionFromPool structRgn;
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::GetWindowStructureRgn(window, structRgn);
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Rect structBox;
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::GetRegionBounds ( structRgn, &structBox );
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PRInt32 wTitleHeight = topLeft.v - 1 - structBox.top;
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globalWindowBounds.top -= wTitleHeight;
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mScreenManager->ScreenForRect ( globalWindowBounds.left, globalWindowBounds.top,
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globalWindowBounds.bottom - globalWindowBounds.top,
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globalWindowBounds.right - globalWindowBounds.left, outScreen );
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}
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}
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else
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*outScreen = nsnull;
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::SetPort ( savedPort );
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} // FindScreenForSurface
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/** ---------------------------------------------------
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* See documentation in nsIDeviceContext.h
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* @update 12/9/98 dwc
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*/
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NS_IMETHODIMP nsDeviceContextMac::GetDeviceSurfaceDimensions(PRInt32 &aWidth, PRInt32 &aHeight)
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NS_IMETHODIMP nsDeviceContextMac::GetDeviceSurfaceDimensions(PRInt32 & outWidth, PRInt32 & outHeight)
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{
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// FIXME: could just union all of the GDevice rectangles together.
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Rect bounds;
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::GetRegionBounds ( ::GetGrayRgn(), &bounds );
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//aWidth = bounds.right - bounds.left;
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//aHeight = bounds.bottom - bounds.top;
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if(mSpec) {
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aWidth = (mPageRect.right-mPageRect.left)*mDevUnitsToAppUnits;
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aHeight = (mPageRect.bottom-mPageRect.top)*mDevUnitsToAppUnits;
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}else {
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aHeight = NSToIntRound((bounds.bottom - bounds.top)*mDevUnitsToAppUnits);
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aWidth = NSToIntRound((bounds.right - bounds.left) * mDevUnitsToAppUnits);
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if( mSpec ) {
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// we have a printer device
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outWidth = (mPageRect.right-mPageRect.left)*mDevUnitsToAppUnits;
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outHeight = (mPageRect.bottom-mPageRect.top)*mDevUnitsToAppUnits;
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}
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else {
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// we have a screen device. find the screen that the window is on and
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// return its dimensions.
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nsCOMPtr<nsIScreen> screen;
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FindScreenForSurface ( getter_AddRefs(screen) );
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if ( screen ) {
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PRInt32 width, height;
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screen->GetWidth ( &width );
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screen->GetHeight ( &height );
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outWidth = NSToIntRound(width * mDevUnitsToAppUnits);
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outHeight = NSToIntRound(height * mDevUnitsToAppUnits);
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}
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else {
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NS_WARNING ( "No screen for this surface. How odd" );
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outHeight = 0;
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outWidth = 0;
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}
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}
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return NS_OK;
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}
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@ -377,20 +465,46 @@ NS_IMETHODIMP nsDeviceContextMac::GetDeviceSurfaceDimensions(PRInt32 &aWidth, PR
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*/
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NS_IMETHODIMP nsDeviceContextMac::GetClientRect(nsRect &aRect)
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{
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// FIXME: equally as broken as GetDeviceSurfaceDimensions,
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// this doesn't do what you want with multiple screens.
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Rect bounds;
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::GetRegionBounds ( ::GetGrayRgn(), &bounds );
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aRect.x = NSToIntRound(bounds.left * mDevUnitsToAppUnits);
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aRect.y = NSToIntRound(bounds.top * mDevUnitsToAppUnits);
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aRect.width = NSToIntRound((bounds.right - bounds.left) * mDevUnitsToAppUnits);
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aRect.height = NSToIntRound((bounds.bottom - bounds.top) * mDevUnitsToAppUnits);
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if( mSpec ) {
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// we have a printer device
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aRect.x = 0;
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aRect.y = 0;
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aRect.width = (mPageRect.right-mPageRect.left)*mDevUnitsToAppUnits;
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aRect.height = (mPageRect.bottom-mPageRect.top)*mDevUnitsToAppUnits;
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}
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else {
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// we have a screen device. find the screen that the window is on and
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// return its dimensions.
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nsCOMPtr<nsIScreen> screen;
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FindScreenForSurface ( getter_AddRefs(screen) );
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if ( screen ) {
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PRInt32 x, y, width, height;
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screen->GetAvailTop ( &y );
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screen->GetAvailLeft ( &x );
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screen->GetAvailWidth ( &width );
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screen->GetAvailHeight ( &height );
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aRect.y = NSToIntRound(y * mDevUnitsToAppUnits);
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aRect.x = NSToIntRound(x * mDevUnitsToAppUnits);
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aRect.width = NSToIntRound(width * mDevUnitsToAppUnits);
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aRect.height = NSToIntRound(height * mDevUnitsToAppUnits);
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}
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else {
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NS_WARNING ( "No screen for this surface. How odd" );
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aRect.x = 0;
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aRect.y = 0;
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aRect.width = 0;
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aRect.height = 0;
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}
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}
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return NS_OK;
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}
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#pragma mark -
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//------------------------------------------------------------------------
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NS_IMETHODIMP nsDeviceContextMac::GetDeviceContextFor(nsIDeviceContextSpec *aDevice,nsIDeviceContext *&aContext)
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@ -32,6 +32,10 @@
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#include <Types.h>
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#include <QuickDraw.h>
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class nsIScreen;
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class nsIScreenManager;
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class nsDeviceContextMac : public DeviceContextImpl
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{
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public:
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@ -56,7 +60,7 @@ public:
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NS_IMETHOD ConvertPixel(nscolor aColor, PRUint32 & aPixel);
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NS_IMETHOD GetDeviceSurfaceDimensions(PRInt32 &aWidth, PRInt32 &aHeight);
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NS_IMETHOD GetClientRect(nsRect &aRect);
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NS_IMETHOD GetClientRect(nsRect &aRect);
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NS_IMETHOD GetDeviceContextFor(nsIDeviceContextSpec *aDevice,
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nsIDeviceContext *&aContext);
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@ -75,11 +79,14 @@ protected:
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virtual nsresult CreateFontAliasTable();
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void FindScreenForSurface ( nsIScreen** outScreen ) ;
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nsDrawingSurface mSurface;
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PRUint32 mDepth;
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Rect mPageRect;
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nsIDeviceContextSpec *mSpec;
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GrafPtr mOldPort;
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nsCOMPtr<nsIScreenManager> mScreenManager;
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public:
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// InitFontInfoList and nsHashTable are static because GetMacFontNumber is static
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static void InitFontInfoList();
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@ -90,6 +97,7 @@ public:
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private:
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static PRUint32 mPixelsPerInch;
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static PRBool mDisplayVerySmallFonts;
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static PRUint32 sNumberOfScreens; // how many screens we have.
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public:
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static PRUint32 GetScreenResolution();
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static PRBool DisplayVerySmallFonts();
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