o5r/plan9port
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

libdraw: autoscale fonts when moving between low and high dpi screens

Browse source 
Change-Id: I6093955b222db89dfe437fb723593b173d888d01
Reviewed-on: https://plan9port-review.googlesource.com/1170
Reviewed-by: Russ Cox <rsc@swtch.com>
This commit is contained in:
Russ Cox 2015-02-17 12:16:20 -05:00
parent 77f23268f7
commit 213fc4f6fb
9 changed files with 243 additions and 28 deletions
Download patch file Download diff file Expand all files Collapse all files

17
include/draw.h
View file

@ -206,6 +206,9 @@ struct Display
struct Mux *mux;
int srvfd;
int dpi;
Font *firstfont;
Font *lastfont;
};
struct Image
@ -319,6 +322,15 @@ struct Font
Cachesubf *subf;
Cachefont **sub; /* as read from file */
Image *cacheimage;
/* doubly linked list of fonts known to display */
int ondisplaylist;
Font *next;
Font *prev;
/* on hi-dpi systems, one of these is set to f and the other is the other-dpi version of f */
Font *lodpi;
Font *hidpi;
};
#define Dx(r) ((r).max.x-(r).min.x)
@ -460,6 +472,7 @@ extern void borderop(Image*, Rectangle, int, Image*, Point, Drawop);
* Font management
*/
extern Font* openfont(Display*, char*);
extern int parsefontscale(char*, char**);
extern Font* buildfont(Display*, char*, char*);
extern void freefont(Font*);
extern Font* mkfont(Subfont*, Rune);
@ -483,11 +496,13 @@ extern int runestringnwidth(Font*, Rune*, int);
extern Point strsubfontwidth(Subfont*, char*);
extern int loadchar(Font*, Rune, Cacheinfo*, int, int, char**);
extern char* subfontname(char*, char*, int);
extern Subfont* _getsubfont(Display*, Font*, char*);
extern Subfont* _getsubfont(Display*, char*);
extern Subfont* getdefont(Display*);
extern void lockdisplay(Display*);
extern void unlockdisplay(Display*);
extern int drawlsetrefresh(u32int, int, void*, void*);
extern void loadhidpi(Font*);
extern void swapfont(Font*, Font**, Font**);
/*
* Predefined