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// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// Copyright(C) 2006 Simon Howard
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
//
// Base GUI "widget" class that all widgets inherit from.
#ifndef TXT_WIDGET_H
#define TXT_WIDGET_H
#define TXT_UNCAST_ARG_NAME(name) uncast_ ## name
#define TXT_UNCAST_ARG(name) void * TXT_UNCAST_ARG_NAME(name)
#define TXT_CAST_ARG(type, name) type *name = (type *) uncast_ ## name
typedef enum
{
TXT_VERT_TOP,
TXT_VERT_CENTER,
TXT_VERT_BOTTOM,
} txt_vert_align_t;
typedef enum
{
TXT_HORIZ_LEFT,
TXT_HORIZ_CENTER,
TXT_HORIZ_RIGHT,
} txt_horiz_align_t;
typedef struct txt_widget_class_s txt_widget_class_t;
typedef struct txt_widget_s txt_widget_t;
typedef struct txt_callback_table_s txt_callback_table_t;
typedef void (*TxtWidgetSizeCalc)(TXT_UNCAST_ARG(widget));
typedef void (*TxtWidgetDrawer)(TXT_UNCAST_ARG(widget), int selected);
typedef void (*TxtWidgetDestroy)(TXT_UNCAST_ARG(widget));
typedef int (*TxtWidgetKeyPress)(TXT_UNCAST_ARG(widget), int key);
typedef void (*TxtWidgetSignalFunc)(TXT_UNCAST_ARG(widget), void *user_data);
typedef void (*TxtMousePressFunc)(TXT_UNCAST_ARG(widget), int x, int y, int b);
typedef void (*TxtWidgetLayoutFunc)(TXT_UNCAST_ARG(widget));
struct txt_widget_class_s
{
TxtWidgetSizeCalc size_calc;
TxtWidgetDrawer drawer;
TxtWidgetKeyPress key_press;
TxtWidgetDestroy destructor;
TxtMousePressFunc mouse_press;
TxtWidgetLayoutFunc layout;
};
struct txt_widget_s
{
txt_widget_class_t *widget_class;
txt_callback_table_t *callback_table;
int selectable;
int visible;
txt_horiz_align_t align;
// These are set automatically when the window is drawn and should
// not be set manually.
int x, y;
unsigned int w, h;
};
void TXT_InitWidget(TXT_UNCAST_ARG(widget), txt_widget_class_t *widget_class);
void TXT_CalcWidgetSize(TXT_UNCAST_ARG(widget));
void TXT_DrawWidget(TXT_UNCAST_ARG(widget), int selected);
void TXT_SignalConnect(TXT_UNCAST_ARG(widget), char *signal_name,
TxtWidgetSignalFunc func, void *user_data);
void TXT_EmitSignal(TXT_UNCAST_ARG(widget), char *signal_name);
int TXT_WidgetKeyPress(TXT_UNCAST_ARG(widget), int key);
void TXT_WidgetMousePress(TXT_UNCAST_ARG(widget), int x, int y, int b);
void TXT_DestroyWidget(TXT_UNCAST_ARG(widget));
void TXT_SetWidgetAlign(TXT_UNCAST_ARG(widget), txt_horiz_align_t horiz_align);
void TXT_LayoutWidget(TXT_UNCAST_ARG(widget));
#endif /* #ifndef TXT_WIDGET_H */
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