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Diffstat (limited to 'src/libs/graphics/widgets.h')
| -rw-r--r-- | src/libs/graphics/widgets.h | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/src/libs/graphics/widgets.h b/src/libs/graphics/widgets.h new file mode 100644 index 0000000..4548e35 --- /dev/null +++ b/src/libs/graphics/widgets.h @@ -0,0 +1,222 @@ +// Copyright Michael Martin, 2004. + +/* + * 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. + */ + +#ifndef LIBS_GRAPHICS_WIDGETS_H_ +#define LIBS_GRAPHICS_WIDGETS_H_ + +#include "libs/gfxlib.h" + +enum { + WIDGET_EVENT_UP, + WIDGET_EVENT_DOWN, + WIDGET_EVENT_LEFT, + WIDGET_EVENT_RIGHT, + WIDGET_EVENT_SELECT, + WIDGET_EVENT_CANCEL, + WIDGET_EVENT_DELETE, + NUM_WIDGET_EVENTS +}; + +typedef enum { + WIDGET_TYPE_MENU_SCREEN, + WIDGET_TYPE_CHOICE, + WIDGET_TYPE_BUTTON, + WIDGET_TYPE_LABEL, + WIDGET_TYPE_SLIDER, + WIDGET_TYPE_TEXTENTRY, + WIDGET_TYPE_CONTROLENTRY, + NUM_WIDGET_TYPES +} WIDGET_TYPE; + +#define WIDGET_TEXTENTRY_WIDTH 50 +#define WIDGET_CONTROLENTRY_WIDTH 16 + +typedef struct _widget { + WIDGET_TYPE tag; + struct _widget *parent; + int (*handleEvent)(struct _widget *self, int event); + int (*receiveFocus)(struct _widget *self, int event); + void (*draw)(struct _widget *self, int x, int y); + int (*height)(struct _widget *self); + int (*width)(struct _widget *self); +} WIDGET; + +typedef struct _widget_menu_screen { + WIDGET_TYPE tag; + struct _widget *parent; + int (*handleEvent)(struct _widget *self, int event); + int (*receiveFocus)(struct _widget *self, int event); + void (*draw)(struct _widget *self, int x, int y); + int (*height)(struct _widget *self); + int (*width)(struct _widget *self); + const char *title; + const char *subtitle; + STAMP bgStamp; + int num_children; + struct _widget **child; + int highlighted; +} WIDGET_MENU_SCREEN; + +typedef struct { + const char *optname; + const char *tooltip[3]; +} CHOICE_OPTION; + +typedef struct _widget_choice { + WIDGET_TYPE tag; + struct _widget *parent; + int (*handleEvent)(struct _widget *self, int event); + int (*receiveFocus)(struct _widget *self, int event); + void (*draw)(struct _widget *self, int x, int y); + int (*height)(struct _widget *self); + int (*width)(struct _widget *self); + const char *category; + int numopts; + int maxcolumns; + CHOICE_OPTION *options; + int selected, highlighted; + void (*onChange)(struct _widget_choice *self, int oldval); +} WIDGET_CHOICE; + +typedef struct _widget_button { + WIDGET_TYPE tag; + struct _widget *parent; + int (*handleEvent)(struct _widget *self, int event); + int (*receiveFocus)(struct _widget *self, int event); + void (*draw)(struct _widget *self, int x, int y); + int (*height)(struct _widget *self); + int (*width)(struct _widget *self); + const char *name; + const char *tooltip[3]; +} WIDGET_BUTTON; + +typedef struct _widget_label { + WIDGET_TYPE tag; + struct _widget *parent; + int (*handleEvent)(struct _widget *self, int event); + int (*receiveFocus)(struct _widget *self, int event); + void (*draw)(struct _widget *self, int x, int y); + int (*height)(struct _widget *self); + int (*width)(struct _widget *self); + int line_count; + const char **lines; +} WIDGET_LABEL; + +typedef struct _widget_slider { + WIDGET_TYPE tag; + struct _widget *parent; + int (*handleEvent)(struct _widget *self, int event); + int (*receiveFocus)(struct _widget *self, int event); + void (*draw)(struct _widget *self, int x, int y); + int (*height)(struct _widget *self); + int (*width)(struct _widget *self); + void (*draw_value)(struct _widget_slider *self, int x, int y); + int min, max, step; + int value; + const char *category; + const char *tooltip[3]; +} WIDGET_SLIDER; + +typedef enum { + WTE_NORMAL = 0, + WTE_EDITING, + WTE_BLOCKCUR, + +} WIDGET_TEXTENTRY_STATE; + +typedef struct _widget_textentry { + WIDGET_TYPE tag; + struct _widget *parent; + int (*handleEvent)(struct _widget *self, int event); + int (*receiveFocus)(struct _widget *self, int event); + void (*draw)(struct _widget *self, int x, int y); + int (*height)(struct _widget *self); + int (*width)(struct _widget *self); + int (*handleEventSelect)(struct _widget_textentry *self); + // handleEventSelect is an overridable callback event + // called by the default handleEvent implementation + // can be NULL, in which case SELECT is ignored + void (*onChange)(struct _widget_textentry *self); + const char *category; + char value[WIDGET_TEXTENTRY_WIDTH]; + int maxlen; + WIDGET_TEXTENTRY_STATE state; + int cursor_pos; +} WIDGET_TEXTENTRY; + +typedef struct _widget_controlentry { + WIDGET_TYPE tag; + struct _widget *parent; + int (*handleEvent)(struct _widget *self, int event); + int (*receiveFocus)(struct _widget *self, int event); + void (*draw)(struct _widget *self, int x, int y); + int (*height)(struct _widget *self); + int (*width)(struct _widget *self); + void (*onChange)(struct _widget_controlentry *self); + void (*onDelete)(struct _widget_controlentry *self); + const char *category; + int controlindex; + int highlighted; + char controlname[2][WIDGET_CONTROLENTRY_WIDTH]; +} WIDGET_CONTROLENTRY; + +void DrawShadowedBox (RECT *r, Color bg, Color dark, Color medium); +void DrawLabelAsWindow (WIDGET_LABEL *label, RECT *windowRect); +void Widget_SetWindowColors (Color bg, Color dark, Color medium); +FONT Widget_SetFont (FONT newFont); + + +int Widget_Event (int event); + +/* Methods for filling in widgets with */ + +int Widget_ReceiveFocusMenuScreen (WIDGET *_self, int event); +int Widget_ReceiveFocusChoice (WIDGET *_self, int event); +int Widget_ReceiveFocusSimple (WIDGET *_self, int event); +int Widget_ReceiveFocusSlider (WIDGET *_self, int event); +int Widget_ReceiveFocusControlEntry (WIDGET *_self, int event); +int Widget_ReceiveFocusRefuseFocus (WIDGET *_self, int event); + +int Widget_HandleEventMenuScreen (WIDGET *_self, int event); +int Widget_HandleEventChoice (WIDGET *_self, int event); +int Widget_HandleEventSlider (WIDGET *_self, int event); +int Widget_HandleEventTextEntry (WIDGET *_self, int event); +int Widget_HandleEventControlEntry (WIDGET *_self, int event); +int Widget_HandleEventIgnoreAll (WIDGET *_self, int event); + +int Widget_HeightChoice (WIDGET *_self); +int Widget_HeightFullScreen (WIDGET *_self); +int Widget_HeightOneLine (WIDGET *_self); +int Widget_HeightLabel (WIDGET *_self); + +int Widget_WidthFullScreen (WIDGET *_self); + +void Widget_DrawMenuScreen (WIDGET *_self, int x, int y); +void Widget_DrawChoice (WIDGET *_self, int x, int y); +void Widget_DrawButton (WIDGET *_self, int x, int y); +void Widget_DrawLabel (WIDGET *_self, int x, int y); +void Widget_DrawSlider (WIDGET *_self, int x, int y); +void Widget_DrawTextEntry (WIDGET *_self, int x, int y); +void Widget_DrawControlEntry (WIDGET *_self, int x, int y); + +void Widget_Slider_DrawValue (WIDGET_SLIDER *self, int x, int y); + +/* Other implementations will need these values */ +extern WIDGET *widget_focus; + +#endif /* LIBS_GRAPHICS_WIDGETS_H_ */ |