Freetype font rendering on Windows?

culyun

I don't think you can specify at runtime, but it is an interesting idea...

But if you're willing to build Qt5 for yourself (not too hard) you can configure the build so that Freetype is used internally by Qt on Windows (widget apps).

[quote author="lunatic fringe" date="1416527650"]How can i programmatically select the freetype engine on startup?
On the windows platform we have a (ttf) font looks good with a Qml App and ugly on a Widget App when not using the command line option to use the freetype font engine. This is still unclear to me.

Regards.[/quote]

culyun

I don't think you can specify at runtime, but it is an interesting idea...

But if you're willing to build Qt5 for yourself (not too hard) you can configure the build so that Freetype is used internally by Qt on Windows (widget apps).

[quote author="lunatic fringe" date="1416527650"]How can i programmatically select the freetype engine on startup?
On the windows platform we have a (ttf) font looks good with a Qml App and ugly on a Widget App when not using the command line option to use the freetype font engine. This is still unclear to me.

Regards.[/quote]

lunatic fringe

At least you can manipulate the arguments for QApplication ...
But i have still difficulties using fonts under windows whether i use the freetype font engine or not.
We need to use a Bosch font, which looks like
qml app : !http://burningrain.no-ip.info/images/font_in_qml.png(qml app)!
widget app: !http://burningrain.no-ip.info/images/font_in_widget.png(widget app)!

Does anyone knows how to improove the presentation of the font in the qt app ?

lunatic fringe

At least you can manipulate the arguments for QApplication ...
But i have still difficulties using fonts under windows whether i use the freetype font engine or not.
We need to use a Bosch font, which looks like
qml app : !http://burningrain.no-ip.info/images/font_in_qml.png(qml app)!
widget app: !http://burningrain.no-ip.info/images/font_in_widget.png(widget app)!

Does anyone knows how to improove the presentation of the font in the qt app ?

culyun

I think all you need is a simple mod to the Qt 5 source.

In

.\qtbase\src\plugins\platforms\windows\qwindowsfontdatabase_ft.cpp

Goto addFontToDatabase

and modify the line that reads

const bool antialias = false;

to

const bool antialias = true;

Rebuild Qt, and voila anti-aliasing on Windows.

[quote author="lunatic fringe" date="1416612075"]At least you can manipulate the arguments for QApplication ...
But i have still difficulties using fonts under windows whether i use the freetype font engine or not.
We need to use a Bosch font, which looks like
qml app : !http://burningrain.no-ip.info/images/font_in_qml.png(qml app)!
widget app: !http://burningrain.no-ip.info/images/font_in_widget.png(widget app)!

Does anyone knows how to improove the presentation of the font in the qt app ?[/quote]

culyun

I think all you need is a simple mod to the Qt 5 source.

In

.\qtbase\src\plugins\platforms\windows\qwindowsfontdatabase_ft.cpp

Goto addFontToDatabase

and modify the line that reads

const bool antialias = false;

to

const bool antialias = true;

Rebuild Qt, and voila anti-aliasing on Windows.

[quote author="lunatic fringe" date="1416612075"]At least you can manipulate the arguments for QApplication ...
But i have still difficulties using fonts under windows whether i use the freetype font engine or not.
We need to use a Bosch font, which looks like
qml app : !http://burningrain.no-ip.info/images/font_in_qml.png(qml app)!
widget app: !http://burningrain.no-ip.info/images/font_in_widget.png(widget app)!

Does anyone knows how to improove the presentation of the font in the qt app ?[/quote]

lunatic fringe

thanks for the tip, but this does not help :-(

I tried what's been pointed to in that "thead":http://www.qtcentre.org/archive/index.php/t-57280.html with succes but this is currently for me not the way to go

lunatic fringe

thanks for the tip, but this does not help :-(

I tried what's been pointed to in that "thead":http://www.qtcentre.org/archive/index.php/t-57280.html with succes but this is currently for me not the way to go

aiai99

My application works with Freetype on windows. I compiled Qt source 5.3. but i don't use freetype included in qt source. I download freetype2.5.3 and compile it as DLL using VS.

The step is following.

Compile qtbase source using -system-freetype
configure.bat ..... -system-freetype
change platformsupport/basic/basic.pri

} else:contains(QT_CONFIG, system-freetype) {
# pull in the proper freetype2 include directory
# include($$QT_SOURCE_TREE/config.tests/unix/freetype/freetype.pri)
```
     #here is your compiled freetype 
     INCLUDEPATH +=C:/projects/freetype-2.5.3/include  
     LIBS += -LC:/projects/freetype-2.5.3/lib/x64 -lfreetyped -lfreetype  
```

}
3. if necessary, add following into gui/text/text.pri
INCLUDEPATH +=C:/projects/freetype-2.5.3/include
LIBS += -LC:/projects/freetype-2.5.3/lib/x64 -lfreetyped -lfreetype

build your qbase
enable your application work with freetype
copy your built qt related dll into your application bin dir
copy freetype dll into your application bin dir
create file named qt.conf , append a line

[Platforms]
WindowsArguments = fontengine=freetype

and save qt.conf into your application bin dir

that's all it should work for you.

aiai99

My application works with Freetype on windows. I compiled Qt source 5.3. but i don't use freetype included in qt source. I download freetype2.5.3 and compile it as DLL using VS.

The step is following.

Compile qtbase source using -system-freetype
configure.bat ..... -system-freetype
change platformsupport/basic/basic.pri

} else:contains(QT_CONFIG, system-freetype) {
# pull in the proper freetype2 include directory
# include($$QT_SOURCE_TREE/config.tests/unix/freetype/freetype.pri)
```
     #here is your compiled freetype 
     INCLUDEPATH +=C:/projects/freetype-2.5.3/include  
     LIBS += -LC:/projects/freetype-2.5.3/lib/x64 -lfreetyped -lfreetype  
```

}
3. if necessary, add following into gui/text/text.pri
INCLUDEPATH +=C:/projects/freetype-2.5.3/include
LIBS += -LC:/projects/freetype-2.5.3/lib/x64 -lfreetyped -lfreetype

build your qbase
enable your application work with freetype
copy your built qt related dll into your application bin dir
copy freetype dll into your application bin dir
create file named qt.conf , append a line

[Platforms]
WindowsArguments = fontengine=freetype

and save qt.conf into your application bin dir

that's all it should work for you.