diff options
Diffstat (limited to 'undo.h')
| -rw-r--r-- | undo.h | 134 |
1 files changed, 0 insertions, 134 deletions
@@ -1,134 +0,0 @@ -#ifndef __UNDO_H -#define __UNDO_H - -#include <bsd/sys/queue.h> - -#include <glib.h> -#include <glib/gprintf.h> - -#include <Scintilla.h> - -#ifdef DEBUG -#include "parser.h" -#endif - -class UndoToken { -public: - SLIST_ENTRY(UndoToken) tokens; - - gint pos; - - virtual ~UndoToken() {} - - virtual void run() = 0; -}; - -class UndoTokenMessage : public UndoToken { - unsigned int iMessage; - uptr_t wParam; - sptr_t lParam; - -public: - UndoTokenMessage(unsigned int _iMessage, - uptr_t _wParam = 0, sptr_t _lParam = 0) - : UndoToken(), iMessage(_iMessage), - wParam(_wParam), lParam(_lParam) {} - - void run(void); -}; - -template <typename Type> -class UndoTokenVariable : public UndoToken { - Type *ptr; - Type value; - -public: - UndoTokenVariable(Type &variable, Type _value) - : UndoToken(), ptr(&variable), value(_value) {} - - void - run(void) - { -#ifdef DEBUG - if ((State **)ptr == &States::current) - g_printf("undo state -> %p\n", (void *)value); -#endif - *ptr = value; - } -}; - -class UndoTokenString : public UndoToken { - gchar **ptr; - gchar *str; - -public: - UndoTokenString(gchar *&variable, gchar *_str) - : UndoToken(), ptr(&variable) - { - str = _str ? g_strdup(_str) : NULL; - } - - ~UndoTokenString() - { - g_free(str); - } - - void - run(void) - { - g_free(*ptr); - *ptr = str; - str = NULL; - } -}; - -extern class UndoStack { - SLIST_HEAD(Head, UndoToken) head; - -public: - bool enabled; - - UndoStack(bool _enabled = false) : enabled(_enabled) - { - SLIST_INIT(&head); - } - ~UndoStack(); - - void push(UndoToken *token); - - void push_msg(unsigned int iMessage, - uptr_t wParam = 0, sptr_t lParam = 0); - - template <typename Type> - inline Type & - push_var(Type &variable, Type value) - { - push(new UndoTokenVariable<Type>(variable, value)); - return variable; - } - - template <typename Type> - inline Type & - push_var(Type &variable) - { - return push_var<Type>(variable, variable); - } - - inline gchar *& - push_str(gchar *&variable, gchar *str) - { - push(new UndoTokenString(variable, str)); - return variable; - } - inline gchar *& - push_str(gchar *&variable) - { - return push_str(variable, variable); - } - - void pop(gint pos); - - void clear(void); -} undo; - -#endif
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