69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
// 17 november 2015
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/*
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This file assumes that you have included the various Haiku header files and "ui.h" beforehand. It provides API-specific functions for interfacing with foreign controls in Haiku.
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*/
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#ifndef __LIBUI_UI_HAIKU_HPP__
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#define __LIBUI_UI_WAIKU_HPP__
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#ifndef __cplusplus
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#error Sorry; ui_haiku.hpp can currently only be used from C++ code.
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#endif
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extern "C" {
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typedef struct uiHaikuControl uiHaikuControl;
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struct uiHaikuControl {
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uiControl c;
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};
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_UI_EXTERN uintmax_t uiHaikuControlType(void);
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#define uiHaikuControl(this) ((uiHaikuControl *) uiIsA((this), uiHaikuControlType(), 1))
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// TODO document
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#define uiHaikuDefineControlWithOnDestroy(type, typefn, handlefield, onDestroy) \
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static uintmax_t _ ## type ## Type = 0; \
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uintmax_t typefn(void) \
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{ \
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if (_ ## type ## Type == 0) \
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_ ## type ## Type = uiRegisterType(#type, uiHaikuControlType(), sizeof (type)); \
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return _ ## type ## Type; \
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} \
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static void _ ## type ## CommitDestroy(uiControl *c) \
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{ \
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type *hthis = type(c); \
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onDestroy; \
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delete hthis->handlefield; \
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} \
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static uintptr_t _ ## type ## Handle(uiControl *c) \
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{ \
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return (uintptr_t) (type(c)->handlefield); \
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} \
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static void _ ## type ## ContainerUpdateState(uiControl *c) \
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{ \
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/* do nothing */ \
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}
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#define uiHaikuDefineControl(type, typefn, handlefield) \
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uiHaikuDefineControlWithOnDestroy(type, typefn, handlefield, (void) hthis;)
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#define uiHaikuFinishNewControl(variable, type) \
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uiControl(variable)->CommitDestroy = _ ## type ## CommitDestroy; \
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uiControl(variable)->Handle = _ ## type ## Handle; \
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uiControl(variable)->ContainerUpdateState = _ ## type ## ContainerUpdateState; \
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uiHaikuFinishControl(uiControl(variable));
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// This is a function used to set up a control.
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// Don't call it directly; use uiHaikuFinishNewControl() instead.
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_UI_EXTERN void uiHaikuFinishControl(uiControl *c);
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// TODO document this
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_UI_EXTERN void uiHaikuRegisterEventHandler(uint32 what, void (*handler)(BMessage *));
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// uiHaikuStrdupText() takes the given string and produces a copy of it suitable for being freed by uiFreeText().
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_UI_EXTERN char *uiHaikuStrdupText(const char *);
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}
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#endif
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