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Fix realDpi function for Mac

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Summary:
Removes old Utils::realDpi function for Mac. The old code employs functions
CGDisplayCurrentMode and CGDisplayIOServicePort, which are deprecated as
of versions 10.6 and 10.9, respectively. Now Mac uses the same code, as
Linux does, since it works out of the box.

This commit automatically fixes the long-standing bug of having an
implementation of realDpiX() and realDpiY(), which are not declared in
the utils.h file.

Reviewers: #okular, rjvbb

Reviewed By: rjvbb

Subscribers: rjvbb, cullmann, aacid, kde-mac, ltoscano, #okular

Tags: #okular

Differential Revision: https://phabricator.kde.org/D10415
This commit is contained in:
Sergio Bragin 2018-02-18 19:23:58 +01:00 committed by Albert Astals Cid
parent 739b591e25
commit 54c741844b
1 changed files with 0 additions and 87 deletions
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87
core/utils.cpp
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@ -22,11 +22,6 @@
#include <QWindow>
#include <QScreen>
#ifdef Q_OS_MAC
#include <ApplicationServices/ApplicationServices.h>
#include <IOKit/graphics/IOGraphicsLib.h>
#endif
using namespace Okular;
@ -58,8 +53,6 @@ QRect Utils::rotateRect( const QRect & source, int width, int height, int orient
return ret;
}
#if !defined(Q_OS_MAC)
QSizeF Utils::realDpi(QWidget* widgetOnScreen)
{
const QScreen* screen = widgetOnScreen && widgetOnScreen->window() && widgetOnScreen->window()->windowHandle()
@ -80,86 +73,6 @@ QSizeF Utils::realDpi(QWidget* widgetOnScreen)
return QSizeF(72, 72);
}
#else
/*
* Code copied from http://developer.apple.com/qa/qa2001/qa1217.html
*/
// Handy utility function for retrieving an int from a CFDictionaryRef
static int GetIntFromDictionaryForKey( CFDictionaryRef desc, CFStringRef key )
{
CFNumberRef value;
int num = 0;
if ( (value = (CFNumberRef)CFDictionaryGetValue(desc, key)) == NULL || CFGetTypeID(value) != CFNumberGetTypeID())
return 0;
CFNumberGetValue(value, kCFNumberIntType, &num);
return num;
}
static CGDisplayErr GetDisplayDPI( CFDictionaryRef displayModeDict, CGDirectDisplayID displayID,
double *horizontalDPI, double *verticalDPI )
{
CGDisplayErr err = kCGErrorFailure;
io_connect_t displayPort;
CFDictionaryRef displayDict;
// Grab a connection to IOKit for the requested display
displayPort = CGDisplayIOServicePort( displayID );
if ( displayPort != MACH_PORT_NULL )
{
// Find out what IOKit knows about this display
displayDict = IODisplayCreateInfoDictionary(displayPort, 0);
if ( displayDict != NULL )
{
const double mmPerInch = 25.4;
double horizontalSizeInInches =
(double)GetIntFromDictionaryForKey(displayDict,
CFSTR(kDisplayHorizontalImageSize)) / mmPerInch;
double verticalSizeInInches =
(double)GetIntFromDictionaryForKey(displayDict,
CFSTR(kDisplayVerticalImageSize)) / mmPerInch;
// Make sure to release the dictionary we got from IOKit
CFRelease(displayDict);
// Now we can calculate the actual DPI
// with information from the displayModeDict
*horizontalDPI =
(double)GetIntFromDictionaryForKey( displayModeDict, kCGDisplayWidth )
/ horizontalSizeInInches;
*verticalDPI = (double)GetIntFromDictionaryForKey( displayModeDict,
kCGDisplayHeight ) / verticalSizeInInches;
err = CGDisplayNoErr;
}
}
return err;
}
double Utils::realDpiX()
{
double x,y;
CGDisplayErr err = GetDisplayDPI( CGDisplayCurrentMode(kCGDirectMainDisplay),
kCGDirectMainDisplay,
&x, &y );
return err == CGDisplayNoErr ? x : 72.0;
}
double Utils::realDpiY()
{
double x,y;
CGDisplayErr err = GetDisplayDPI( CGDisplayCurrentMode(kCGDirectMainDisplay),
kCGDirectMainDisplay,
&x, &y );
return err == CGDisplayNoErr ? y : 72.0;
}
QSizeF Utils::realDpi(QWidget*)
{
return QSizeF(realDpiX(), realDpiY());
}
#endif
inline static bool isPaperColor( QRgb argb, QRgb paperColor ) {
return ( argb & 0xFFFFFF ) == ( paperColor & 0xFFFFFF); // ignore alpha
}