// 6 april 2015

// This is not an IDL file for the conventional RPC or Microsoft IDLs.
// Instead, this is for a custom IDL of my own creation.
// You can find it at github.com/andlabs/pgidl

package ui {

raw "#include <stddef.h>";
raw "#include <stdint.h>";

raw "#ifndef _UI_EXTERN";
raw "#define _UI_EXTERN extern";
raw "#endif";

struct InitOptions {
	field Size size_t;
};

func Init(options *InitOptions) *const char;
func Uninit(void);
func FreeInitError(err *const char);

func Main(void);
func Quit(void);

func OnShouldQuit(f *func(data *void) int, data *void);

func FreeText(text *char);

raw "typedef struct uiSizingSys uiSizingSys;";

struct Sizing {
	field XPadding intmax_t;
	field YPadding intmax_t;
	field Sys *uiSizingSys;
};

raw "typedef struct uiControlSysFuncParams uiControlSysFuncParams;";

interface Control {
	field Internal *void;		// for use by ui only
	func Destroy(void);
	func Handle(void) uintptr_t;
	func SetParent(c *Container);
	func PreferredSize(d *Sizing, width *intmax_t, height *intmax_t);
	func Resize(x intmax_t, y intmax_t, width intmax_t, height intmax_t, d *Sizing);
	func Visible(void) int;
	func Show(void);
	func Hide(void);
	func Enable(void);
	func Disable(void);
	func SysFunc(p *uiControlSysFuncParams);
};

interface Container from Control {
	func ResizeChildren(x intmax_t, y intmax_t, width intmax_t, height intmax_t, d *Sizing);
	func Update(void);
};
func MakeContainer(c *Container);

interface Bin from Container {
	func SetMainControl(c *Control);
	func SetMargins(left intmax_t, top intmax_t, right intmax_t, bottom intmax_t);
	// defined by each OS
	func HasOSParent(void) int;
	func SetOSParent(parent uintptr_t);
	func RemoveOSParent(void);
	func ResizeRootAndUpdate(x intmax_t, y intmax_t, width intmax_t, height intmax_t);
	func TranslateMargins(left *intmax_t, top *intmax_t, right *intmax_t, bottom *intmax_t, d *Sizing);
};

interface Window from Control {
	func Title(void) *char;
	func SetTitle(title *const char);
	func OnClosing(f *func(w *Window, data *void) int, data *void);
	func SetChild(c *Control);
	func Margined(void) int;
	func SetMargined(margined int);
};
func NewWindow(title *const char, width int, height int, hasMenubar int) *Window;

interface Button from Control {
	func Text(void) *char;
	func SetText(text *const char);
	func OnClicked(f *func(b *Button, data *void), data *void);
};
func NewButton(text *const char) *Button;

interface Box from Container {
	func Append(c *Control, stretchy int);
	func Delete(index uintmax_t);
	func Padded(void) int;
	func SetPadded(padded int);
};
func NewHorizontalBox(void) *Box;
func NewVerticalBox(void) *Box;

interface Entry from Control {
	func Text(void) *char;
	func SetText(text *const char);
	func OnChanged(f *func(e *Entry, data *void), data *void);
	func ReadOnly(void) int;
	func SetReadOnly(readonly int);
};
func NewEntry(void) *Entry;

interface Checkbox from Control {
	func Text(void) *char;
	func SetText(text *const char);
	func OnToggled(f *func(c *Checkbox, data *void), data *void);
	func Checked(void) int;
	func SetChecked(checked int);
};
func NewCheckbox(text *const char) *Checkbox;

interface Label from Control {
	func Text(void) *char;
	func SetText(text *const char);
};
func NewLabel(text *const char) *Label;

interface Tab from Control {
	func AppendPage(name *const char, c *Control);
	func InsertPageBefore(name *const char, before uintmax_t, c *Control);
	func DeletePage(index uintmax_t);
	func NumPages(void) uintmax_t;
	func Margined(page uintmax_t) int;
	func SetMargined(page uintmax_t, margined int);
};
func NewTab(void) *Tab;

interface Group from Control {
	// TODO text and settext
	func SetChild(c *Control);
	// TODO margined and setmargined
};
func NewGroup(text *const char) *Group;

interface Menu {
	func AppendItem(name *const char) *MenuItem;
	func AppendCheckItem(name *const char) *MenuItem;
	func AppendQuitItem(void) *MenuItem;
	func AppendPreferencesItem(void) *MenuItem;
	func AppendAboutItem(void) *MenuItem;
	func AppendSeparator(void);
};
func NewMenu(name *const char) *Menu;

interface MenuItem {
	func Enable(void);
	func Disable(void);
	func OnClicked(f *func(sender *MenuItem, window *Window, data *void), data *void);
	func Checked(void) int;
	func SetChecked(checked int);
};

};