Move line drawing class to the top of the file.
Move line drawing class to the top of the file.

 * This way it becomes available to all classes in this file.

Reviewed-By: dt

syntheticpp/qt-creator,maui-packages/qt-creator,KDAB/KDAB-Creator,yinyunqiao/qtcreator,amyvmiwei/qt-creator,renatofilho/QtCreator,malikcjm/qtcreator,omniacreator/qtcreator,kuba1/qtcreator,martyone/sailfish-qtcreator,richardmg/qtcreator,Distrotech/qtcreator,xianian/qt-creator,kuba1/qtcreator,malikcjm/qtcreator,pcacjr/qt-creator,maui-packages/qt-creator,hdweiss/qt-creator-visualizer,omniacreator/qtcreator,darksylinc/qt-creator,colede/qtcreator,syntheticpp/qt-creator,dmik/qt-creator-os2,darksylinc/qt-creator,azat/qtcreator,richardmg/qtcreator,danimo/qt-creator,darksylinc/qt-creator,kuba1/qtcreator,syntheticpp/qt-creator,malikcjm/qtcreator,duythanhphan/qt-creator,darksylinc/qt-creator,pcacjr/qt-creator,sandsmark/qtcreator-minimap,duythanhphan/qt-creator,pcacjr/qt-creator,colede/qtcreator,renatofilho/QtCreator,KDE/android-qt-creator,amyvmiwei/qt-creator,enricoros/k-qt-creator-inspector,farseerri/git_code,KDE/android-qt-creator,azat/qtcreator,syntheticpp/qt-creator,sandsmark/qtcreator-minimap,azat/qtcreator,farseerri/git_code,duythanhphan/qt-creator,danimo/qt-creator,KDE/android-qt-creator,kuba1/qtcreator,AltarBeastiful/qt-creator,syntheticpp/qt-creator,KDE/android-qt-creator,ostash/qt-creator-i18n-uk,kuba1/qtcreator,Distrotech/qtcreator,KDAB/KDAB-Creator,yinyunqiao/qtcreator,xianian/qt-creator,malikcjm/qtcreator,richardmg/qtcreator,enricoros/k-qt-creator-inspector,omniacreator/qtcreator,pcacjr/qt-creator,enricoros/k-qt-creator-inspector,martyone/sailfish-qtcreator,danimo/qt-creator,malikcjm/qtcreator,yinyunqiao/qtcreator,colede/qtcreator,ostash/qt-creator-i18n-uk,KDAB/KDAB-Creator,syntheticpp/qt-creator,amyvmiwei/qt-creator,sandsmark/qtcreator-minimap,dmik/qt-creator-os2,martyone/sailfish-qtcreator,renatofilho/QtCreator,bakaiadam/collaborative_qt_creator,darksylinc/qt-creator,renatofilho/QtCreator,hdweiss/qt-creator-visualizer,danimo/qt-creator,dmik/qt-creator-os2,hdweiss/qt-creator-visualizer,dmik/qt-creator-os2,renatofilho/QtCreator,kuba1/qtcreator,malikcjm/qtcreator,omniacreator/qtcreator,ostash/qt-creator-i18n-uk,danimo/qt-creator,AltarBeastiful/qt-creator,amyvmiwei/qt-creator,richardmg/qtcreator,martyone/sailfish-qtcreator,amyvmiwei/qt-creator,yinyunqiao/qtcreator,jonnor/qt-creator,kuba1/qtcreator,darksylinc/qt-creator,bakaiadam/collaborative_qt_creator,malikcjm/qtcreator,azat/qtcreator,KDE/android-qt-creator,richardmg/qtcreator,danimo/qt-creator,richardmg/qtcreator,duythanhphan/qt-creator,KDAB/KDAB-Creator,colede/qtcreator,Distrotech/qtcreator,xianian/qt-creator,ostash/qt-creator-i18n-uk,bakaiadam/collaborative_qt_creator,farseerri/git_code,darksylinc/qt-creator,martyone/sailfish-qtcreator,darksylinc/qt-creator,ostash/qt-creator-i18n-uk,farseerri/git_code,bakaiadam/collaborative_qt_creator,jonnor/qt-creator,amyvmiwei/qt-creator,sandsmark/qtcreator-minimap,colede/qtcreator,bakaiadam/collaborative_qt_creator,danimo/qt-creator,jonnor/qt-creator,colede/qtcreator,hdweiss/qt-creator-visualizer,KDE/android-qt-creator,ostash/qt-creator-i18n-uk,farseerri/git_code,danimo/qt-creator,maui-packages/qt-creator,dmik/qt-creator-os2,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,maui-packages/qt-creator,maui-packages/qt-creator,AltarBeastiful/qt-creator,colede/qtcreator,yinyunqiao/qtcreator,AltarBeastiful/qt-creator,azat/qtcreator,hdweiss/qt-creator-visualizer,bakaiadam/collaborative_qt_creator,enricoros/k-qt-creator-inspector,Distrotech/qtcreator,KDAB/KDAB-Creator,dmik/qt-creator-os2,jonnor/qt-creator,omniacreator/qtcreator,xianian/qt-creator,amyvmiwei/qt-creator,maui-packages/qt-creator,omniacreator/qtcreator,danimo/qt-creator,amyvmiwei/qt-creator,pcacjr/qt-creator,Distrotech/qtcreator,xianian/qt-creator,KDE/android-qt-creator,azat/qtcreator,Distrotech/qtcreator,AltarBeastiful/qt-creator,xianian/qt-creator,KDE/android-qt-creator,jonnor/qt-creator,ostash/qt-creator-i18n-uk,farseerri/git_code,farseerri/git_code,Distrotech/qtcreator,omniacreator/qtcreator,kuba1/qtcreator,KDAB/KDAB-Creator,bakaiadam/collaborative_qt_creator,enricoros/k-qt-creator-inspector,pcacjr/qt-creator,kuba1/qtcreator,yinyunqiao/qtcreator,duythanhphan/qt-creator,dmik/qt-creator-os2,hdweiss/qt-creator-visualizer,pcacjr/qt-creator,martyone/sailfish-qtcreator,sandsmark/qtcreator-minimap,duythanhphan/qt-creator,syntheticpp/qt-creator,xianian/qt-creator,farseerri/git_code,yinyunqiao/qtcreator,renatofilho/QtCreator,martyone/sailfish-qtcreator,sandsmark/qtcreator-minimap,xianian/qt-creator,richardmg/qtcreator,jonnor/qt-creator,AltarBeastiful/qt-creator,maui-packages/qt-creator,xianian/qt-creator,duythanhphan/qt-creator,enricoros/k-qt-creator-inspector,enricoros/k-qt-creator-inspector,AltarBeastiful/qt-creator