223 lines
6.9 KiB
C
223 lines
6.9 KiB
C
// Copyright Michael Martin, 2004.
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _WIDGETS_H
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#define _WIDGETS_H
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#include "libs/gfxlib.h"
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enum {
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WIDGET_EVENT_UP,
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WIDGET_EVENT_DOWN,
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WIDGET_EVENT_LEFT,
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WIDGET_EVENT_RIGHT,
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WIDGET_EVENT_SELECT,
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WIDGET_EVENT_CANCEL,
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WIDGET_EVENT_DELETE,
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NUM_WIDGET_EVENTS
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};
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typedef enum {
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WIDGET_TYPE_MENU_SCREEN,
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WIDGET_TYPE_CHOICE,
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WIDGET_TYPE_BUTTON,
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WIDGET_TYPE_LABEL,
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WIDGET_TYPE_SLIDER,
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WIDGET_TYPE_TEXTENTRY,
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WIDGET_TYPE_CONTROLENTRY,
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NUM_WIDGET_TYPES
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} WIDGET_TYPE;
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#define WIDGET_TEXTENTRY_WIDTH 50
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#define WIDGET_CONTROLENTRY_WIDTH 16
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typedef struct _widget {
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WIDGET_TYPE tag;
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struct _widget *parent;
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int (*handleEvent)(struct _widget *self, int event);
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int (*receiveFocus)(struct _widget *self, int event);
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void (*draw)(struct _widget *self, int x, int y);
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int (*height)(struct _widget *self);
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int (*width)(struct _widget *self);
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} WIDGET;
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typedef struct _widget_menu_screen {
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WIDGET_TYPE tag;
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struct _widget *parent;
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int (*handleEvent)(struct _widget *self, int event);
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int (*receiveFocus)(struct _widget *self, int event);
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void (*draw)(struct _widget *self, int x, int y);
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int (*height)(struct _widget *self);
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int (*width)(struct _widget *self);
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const char *title;
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const char *subtitle;
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STAMP bgStamp;
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int num_children;
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struct _widget **child;
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int highlighted;
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} WIDGET_MENU_SCREEN;
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typedef struct {
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const char *optname;
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const char *tooltip[3];
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} CHOICE_OPTION;
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typedef struct _widget_choice {
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WIDGET_TYPE tag;
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struct _widget *parent;
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int (*handleEvent)(struct _widget *self, int event);
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int (*receiveFocus)(struct _widget *self, int event);
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void (*draw)(struct _widget *self, int x, int y);
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int (*height)(struct _widget *self);
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int (*width)(struct _widget *self);
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const char *category;
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int numopts;
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int maxcolumns;
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CHOICE_OPTION *options;
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int selected, highlighted;
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void (*onChange)(struct _widget_choice *self, int oldval);
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} WIDGET_CHOICE;
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typedef struct _widget_button {
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WIDGET_TYPE tag;
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struct _widget *parent;
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int (*handleEvent)(struct _widget *self, int event);
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int (*receiveFocus)(struct _widget *self, int event);
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void (*draw)(struct _widget *self, int x, int y);
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int (*height)(struct _widget *self);
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int (*width)(struct _widget *self);
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const char *name;
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const char *tooltip[3];
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} WIDGET_BUTTON;
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typedef struct _widget_label {
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WIDGET_TYPE tag;
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struct _widget *parent;
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int (*handleEvent)(struct _widget *self, int event);
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int (*receiveFocus)(struct _widget *self, int event);
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void (*draw)(struct _widget *self, int x, int y);
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int (*height)(struct _widget *self);
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int (*width)(struct _widget *self);
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int line_count;
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const char **lines;
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} WIDGET_LABEL;
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typedef struct _widget_slider {
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WIDGET_TYPE tag;
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struct _widget *parent;
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int (*handleEvent)(struct _widget *self, int event);
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int (*receiveFocus)(struct _widget *self, int event);
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void (*draw)(struct _widget *self, int x, int y);
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int (*height)(struct _widget *self);
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int (*width)(struct _widget *self);
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void (*draw_value)(struct _widget_slider *self, int x, int y);
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int min, max, step;
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int value;
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const char *category;
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const char *tooltip[3];
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} WIDGET_SLIDER;
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typedef enum {
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WTE_NORMAL = 0,
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WTE_EDITING,
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WTE_BLOCKCUR,
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} WIDGET_TEXTENTRY_STATE;
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typedef struct _widget_textentry {
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WIDGET_TYPE tag;
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struct _widget *parent;
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int (*handleEvent)(struct _widget *self, int event);
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int (*receiveFocus)(struct _widget *self, int event);
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void (*draw)(struct _widget *self, int x, int y);
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int (*height)(struct _widget *self);
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int (*width)(struct _widget *self);
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int (*handleEventSelect)(struct _widget_textentry *self);
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// handleEventSelect is an overridable callback event
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// called by the default handleEvent implementation
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// can be NULL, in which case SELECT is ignored
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void (*onChange)(struct _widget_textentry *self);
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const char *category;
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char value[WIDGET_TEXTENTRY_WIDTH];
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int maxlen;
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WIDGET_TEXTENTRY_STATE state;
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int cursor_pos;
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} WIDGET_TEXTENTRY;
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typedef struct _widget_controlentry {
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WIDGET_TYPE tag;
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struct _widget *parent;
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int (*handleEvent)(struct _widget *self, int event);
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int (*receiveFocus)(struct _widget *self, int event);
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void (*draw)(struct _widget *self, int x, int y);
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int (*height)(struct _widget *self);
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int (*width)(struct _widget *self);
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void (*onChange)(struct _widget_controlentry *self);
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void (*onDelete)(struct _widget_controlentry *self);
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const char *category;
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int controlindex;
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int highlighted;
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char controlname[2][WIDGET_CONTROLENTRY_WIDTH];
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} WIDGET_CONTROLENTRY;
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void DrawShadowedBox (RECT *r, Color bg, Color dark, Color medium);
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void DrawLabelAsWindow (WIDGET_LABEL *label, RECT *windowRect);
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void Widget_SetWindowColors (Color bg, Color dark, Color medium);
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FONT Widget_SetFont (FONT newFont);
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int Widget_Event (int event);
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/* Methods for filling in widgets with */
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int Widget_ReceiveFocusMenuScreen (WIDGET *_self, int event);
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int Widget_ReceiveFocusChoice (WIDGET *_self, int event);
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int Widget_ReceiveFocusSimple (WIDGET *_self, int event);
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int Widget_ReceiveFocusSlider (WIDGET *_self, int event);
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int Widget_ReceiveFocusControlEntry (WIDGET *_self, int event);
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int Widget_ReceiveFocusRefuseFocus (WIDGET *_self, int event);
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int Widget_HandleEventMenuScreen (WIDGET *_self, int event);
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int Widget_HandleEventChoice (WIDGET *_self, int event);
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int Widget_HandleEventSlider (WIDGET *_self, int event);
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int Widget_HandleEventTextEntry (WIDGET *_self, int event);
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int Widget_HandleEventControlEntry (WIDGET *_self, int event);
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int Widget_HandleEventIgnoreAll (WIDGET *_self, int event);
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int Widget_HeightChoice (WIDGET *_self);
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int Widget_HeightFullScreen (WIDGET *_self);
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int Widget_HeightOneLine (WIDGET *_self);
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int Widget_HeightLabel (WIDGET *_self);
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int Widget_WidthFullScreen (WIDGET *_self);
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void Widget_DrawMenuScreen (WIDGET *_self, int x, int y);
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void Widget_DrawChoice (WIDGET *_self, int x, int y);
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void Widget_DrawButton (WIDGET *_self, int x, int y);
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void Widget_DrawLabel (WIDGET *_self, int x, int y);
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void Widget_DrawSlider (WIDGET *_self, int x, int y);
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void Widget_DrawTextEntry (WIDGET *_self, int x, int y);
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void Widget_DrawControlEntry (WIDGET *_self, int x, int y);
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void Widget_Slider_DrawValue (WIDGET_SLIDER *self, int x, int y);
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/* Other implementations will need these values */
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extern WIDGET *widget_focus;
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#endif /* _WIDGETS_H */
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