shithub: guifs

ref: 7c6a945996a1d5510ff1412320ac7d07a0f82851
dir: /guifs.h/

enum {
	Pbackground,
	Pmax,
};

enum {
	Gnone,
	Gcontainer,
	Gmax,
};
typedef struct Colour Colour;
typedef union PropVal PropVal;
typedef struct PropSpec PropSpec;
typedef struct Prop Prop;
typedef struct GuiSpec GuiSpec;
typedef struct GuiElement GuiElement;

struct Colour {
	Image *image;
	ulong code;
};

union PropVal {
	Colour *colour;
};

struct PropSpec {
	char *name;
	PropVal (*def)(void);
	char *(*print)(PropVal);
	char *(*parse)(char *, PropVal *);
};

struct Prop {
	int tag;
	PropVal val;
	Qid qid;
};

struct GuiSpec {
	char *name;
	void (*draw)(GuiElement *);
	void (*layout)(GuiElement *, Rectangle);
	int nprops;
	int proptags[];
};

struct GuiElement {
	int type;
	int id;

	Qid qid;
	Qid qclone;
	Qid qevent;
	Qid qtype;
	Qid qprops;

	int nchildren;
	GuiElement **children;

	GuiElement *parent;

	int nprops;
	Prop *props;

	Rectangle rect;
	
};

extern GuiElement *root;
extern PropSpec propspecs[Pmax];
extern GuiSpec guispecs[Gmax];

void *emalloc(ulong);

Colour *mkcolour(ulong);
void initgraphics(void);
void layout(GuiElement *, Rectangle);
void updategui(int);
void drawnone(GuiElement *);
void drawcontainer(GuiElement *);

void layoutnone(GuiElement *, Rectangle);
void layoutcontainer(GuiElement *, Rectangle);

PropVal getprop(GuiElement *, int);
void setprop(GuiElement *, int, PropVal);