widget.h

/***************************************************************************
    begin                : Mon Sep 20 2004
    copyright            : (C) 2004 - 2006 by Alper Akcan
    email                : distchx@yahoo.com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU Lesser General Public License as        *
 *   published by the Free Software Foundation; either version 2.1 of the  *
 *   License, or (at your option) any later version.                       *
 *                                                                         *
 ***************************************************************************/

#ifndef W_WIDGET_H_
#define W_WIDGET_H_

/* reduce memory usage, this is a bit hacky
 * some speed consumptions ;|
 * 
 * levels;
 *      0: no memory optimizations, memory hungary but faster
 *      1: disables image caching, reduces memory usage, especially
 *         for the applications that have several images
 *      2: will free hided object's and its childs' buffers (vbuf and matrix)
 *         slowers show() hide() processes, but cute.
 *      3: much more memory optimization, too slower, draws everthing on the fly.
 */
#define WIDGET_OPTIMIZE_MEMORY 2

typedef struct w_object_s w_object_t;
typedef struct w_button_s w_button_t;
typedef struct w_checkbox_s w_checkbox_t;
typedef struct w_editbox_s w_editbox_t;
typedef struct w_frame_image_s w_frame_image_t;
typedef struct w_frame_s w_frame_t;
typedef struct w_progressbar_s w_progressbar_t;
typedef struct w_scrollbufferbar_s w_scrollbufferbar_t;
typedef struct w_scrollbuffer_s w_scrollbuffer_t;
typedef struct w_textbox_s w_textbox_t;
typedef struct w_window_s w_window_t;

typedef struct w_effect_s w_effect_t;
typedef struct w_signal_s w_signal_t;

/* signal.c */
struct w_signal_s {
        w_object_t *from;
        w_object_t *to;
        void (*func) (w_signal_t *);
        void *arg;
};

void w_signal_send (w_object_t *from, w_object_t *to, void (*func) (w_signal_t *), void *arg);
void w_signal_delete (w_object_t *object);

/* effect .c */
typedef enum {
        EFFECT_NONE    = 0x0,
        EFFECT_FADEIN  = 0x1,
        EFFECT_FADEOUT = 0x2,
        EFFECT_POPIN   = 0x4,
        EFFECT_POPOUT  = 0x8,
        EFFECT_SHOW    = (EFFECT_FADEIN | EFFECT_POPIN),
        EFFECT_HIDE    = (EFFECT_FADEOUT | EFFECT_POPOUT)
} EFFECT;

struct w_effect_s {
        EFFECT effect;
        int level;
        int interval;
        s_timer_t *timer;
};

int w_effect_stop (w_object_t *object);
int w_effect_start (w_object_t *object);
void w_effect_timer_cb (s_window_t *window, s_timer_t *timer);
int w_effect_apply (s_surface_t *surface, s_rect_t *rect, w_object_t *effect, w_object_t *object);

/* object.c */


typedef enum {
        OBJECT_OBJECT           = 0x0,
        OBJECT_FRAME            = 0x1,
        OBJECT_BUTTON           = 0x2,
        OBJECT_TEXTBOX          = 0x3,
        OBJECT_EDITBOX          = 0x4,
        OBJECT_PROGRESSBAR      = 0x5,
        OBJECT_CHECKBOX         = 0x6,
        OBJECT_SCROLLBUFFER     = 0x7,
        OBJECT_SCROLLBUFFERBAR  = 0x8,
        OBJECT_WINDOW           = 0x9,
        OBJECT_OBJECTS          = 0xa
} OBJECT;

struct w_object_s {
        OBJECT type;
        s_list_t *childs;
        s_list_t *shown;
        s_surface_t *surface;
        w_object_t *parent;
        s_rect_t *content;
        int showed;
        int focused;
        w_effect_t *effect;
        void (*geometry) (w_object_t *object);
        void (*draw) (w_object_t *object);
        void (*event) (w_object_t *object, s_event_t *event);
        void (*destroy) (w_object_t *object);
        w_window_t *window;
        void *data[OBJECT_OBJECTS];
        void *priv;
};

void w_object_hide_ (w_object_t *object);
void w_object_show_ (w_object_t *object);
int w_object_update_to_surface (w_object_t *object, s_surface_t *surface, s_rect_t *coor, w_object_t *effect, int do_effect);
int w_object_update (w_object_t *object, s_rect_t *coor);
int w_object_draw (w_object_t *object);
int w_object_refresh (w_object_t *object);
int w_object_set_content (w_object_t *object, int x, int y, int w, int h);
int w_object_move_correct (w_object_t *object);
int w_object_move_silent (w_object_t *object, int x, int y, int w, int h);
int w_object_move (w_object_t *object, int x, int y, int w, int h);
int w_object_hide (w_object_t *object);
int w_object_show (w_object_t *object);
int w_object_childatposition (w_object_t *object, int x, int y, w_object_t **child);
int w_object_atposition (w_object_t *root, int x, int y, w_object_t **object);
void w_object_signal (w_object_t *from, w_object_t *to, void (*func) (w_signal_t *), void *arg);
int w_object_level_get_ (w_object_t *parent, w_object_t **object, int *level);
int w_object_level_get (w_object_t *parent, w_object_t **object, int level);
int w_object_level_count_ (w_object_t *parent, int *level);
int w_object_level_count (w_object_t *parent, int *level);
int w_object_level_find_ (w_object_t *parent, w_object_t *object, int *level);
int w_object_level_find (w_object_t *parent, w_object_t *object, int *level);
int w_object_isshownchild (w_object_t *parent, w_object_t *child);
int w_object_ischild (w_object_t *parent, w_object_t *child);
int w_object_init (w_window_t *window, w_object_t **object, void (*draw) (w_object_t *), w_object_t *parent);
void w_object_uninit (w_object_t *object);

/* frame.c */
typedef enum {
        FRAME_NOFRAME           = 0x00,
        FRAME_BOX               = 0x01,
        FRAME_PANEL             = 0x02,
        FRAME_WINPANEL          = 0x03,
        FRAME_HLINE             = 0x04,
        FRAME_VLINE             = 0x05,
        FRAME_STYLEDPANEL       = 0x06,
        FRAME_POPUPPANEL        = 0x07,
        FRAME_MENUBARPANEL      = 0x08,
        FRAME_TOOLBARPANEL      = 0x09,
        FRAME_LINEEDITPANEL     = 0x0a,
        FRAME_TABWIDGETPANEL    = 0x0b,
        FRAME_GROUPBOXPANEL     = 0x0c,
        FRAME_EMPTY             = 0x0d,
        FRAME_MSHAPE            = 0x0f
} FRAME_SHAPE;

typedef enum {
        FRAME_PLAIN             = 0x010,
        FRAME_RAISED            = 0x020,
        FRAME_SUNKEN            = 0x040,
        FRAME_FOCUSED           = 0x100,
        FRAME_MSHADOW           = 0x0f0
} FRAME_SHADOW;

typedef enum {
        FRAME_IMAGE_SOLID       = 0x0,
        FRAME_IMAGE_VERTICAL    = 0x1,
        FRAME_IMAGE_HORIZONTAL  = 0x2,
} FRAME_IMAGE_ROTATION;

struct w_frame_image_s {
        unsigned int style;
        unsigned int rotation;
        s_list_t *images;
        s_list_t *names;
};

struct w_frame_s {
        w_object_t *object;
        unsigned int style;
        unsigned int linewidth;
        unsigned int midlinewidth;
        s_list_t *images;
};

int w_frame_set_style (w_object_t *object, FRAME_SHAPE shape, FRAME_SHADOW shadow);
int w_frame_image_init (w_frame_image_t **fimg);
int w_frame_image_uninit (w_frame_image_t *fimg);
int w_frame_set_image (w_object_t *object, unsigned int style, unsigned int rotation, unsigned int nimgs, char **imgs);
void w_frame_draw_image (w_object_t *object, w_frame_image_t *fimg);
void w_frame_draw (w_object_t *object);
void w_frame_geometry (w_object_t *object);
int w_frame_init (w_window_t *window, w_frame_t **frame, unsigned int style, w_object_t *parent);
void w_frame_uninit (w_object_t *object);

/* button.c */
struct w_button_s {
        w_object_t *object;
        w_frame_t *frame;
        s_handler_t *handler_m;
        s_handler_t *handler_k;
        void (*pressed) (w_object_t *, int);
        void (*released) (w_object_t *, int);
        void (*clicked) (w_object_t *, int, int);
        int state;
};

int w_button_set_pressed (w_object_t *object, void (*pressed) (w_object_t *, int));
int w_button_set_released (w_object_t *object, void (*released) (w_object_t *, int));
int w_button_set_clicked (w_object_t *object, void (*clicked) (w_object_t *, int, int));
int w_button_set_image (w_object_t *object, unsigned int style, unsigned int rotation, unsigned int nimgs, char **imgs);
int w_button_set_style (w_object_t *object, FRAME_SHAPE shape, FRAME_SHADOW shadow);
void w_button_event (w_object_t *object, s_event_t *event);
void w_button_draw (w_object_t *object);
void w_button_geometry (w_object_t *object);
void w_button_cb_o (s_window_t *window, s_event_t *event, s_handler_t *handler);
void w_button_cb_p (s_window_t *window, s_event_t *event, s_handler_t *handler);
void w_button_cb_c (s_window_t *window, s_event_t *event, s_handler_t *handler);
void w_button_cb_r (s_window_t *window, s_event_t *event, s_handler_t *handler);
void w_button_cb_hr (s_window_t *window, s_event_t *event, s_handler_t *handler);
void w_button_cb_rh (s_window_t *window, s_event_t *event, s_handler_t *handler);
void w_button_cb_ho (s_window_t *window, s_event_t *event, s_handler_t *handler);
void w_button_cb_oh (s_window_t *window, s_event_t *event, s_handler_t *handler);
void w_button_cb_hoh (s_window_t *window, s_event_t *event, s_handler_t *handler);
int w_button_init (w_window_t *window, w_button_t **button, w_object_t *parent);
void w_button_uninit (w_object_t *object);

/* textbox.c */
typedef enum {
        TEXTBOX_WRAP    = 0x1,
        TEXTBOX_VCENTER = 0x2,
        TEXTBOX_HCENTER = 0x4
} TEXTBOX_PROPERTIES;

struct w_textbox_s {
        w_object_t *object;
        w_frame_t *frame;
        s_list_t *lines;
        char *str;
        char *font;
        unsigned int size;
        unsigned int rgb;
        TEXTBOX_PROPERTIES properties;
        int height;
        int yoffset;
};

void w_textbox_slide (w_object_t *object, int vertical, int horizontal, int *ytotal, int *yoffset);
int w_textbox_set_properties (w_object_t *object, TEXTBOX_PROPERTIES properties);
int w_textbox_set_image (w_object_t *object, unsigned int style, unsigned int rotation, unsigned int nimgs, char **imgs);
int w_textbox_set_style (w_object_t *object, FRAME_SHAPE shape, FRAME_SHADOW shadow);
void w_textbox_draw (w_object_t *object);
int w_textbox_set_rgb (w_object_t *object, int r, int g, int b);
int w_textbox_set_size (w_object_t *object, int size);
int w_textbox_set_str (w_object_t *object, char *str);
void w_textbox_geometry (w_object_t *object);
int w_textbox_init (w_window_t *window, w_textbox_t **textbox, w_object_t *parent);
void w_textbox_uninit (w_object_t *object);
void w_textbox_loadimages(w_object_t *object,char *file_left,char *file_middle,char *file_right);

/* editbox.c */
struct w_editbox_s {
        w_object_t *object;
        w_textbox_t *textbox;
        s_handler_t *handler_mouse;
        s_handler_t *handler_keybd;
};

int w_editbox_set_str (w_object_t *object, char *str);
int w_editbox_set_style (w_object_t *object, FRAME_SHAPE shape, FRAME_SHADOW shadow);
int w_editbox_set_image (w_object_t *object, unsigned int style, unsigned int rotation, unsigned int nimgs, char **imgs);
int w_editbox_set_size (w_object_t *object, int size);
int w_editbox_set_rgb (w_object_t *object, int r, int g, int b);
int w_editbox_set_properties (w_object_t *object, TEXTBOX_PROPERTIES properties);
void w_editbox_draw (w_object_t *object);
void w_editbox_geometry (w_object_t *object);
int w_editbox_init (w_window_t *window, w_editbox_t **editbox, w_object_t *parent);
void w_editbox_uninit (w_object_t *object);

/* checkbox.c */
struct w_checkbox_s {
        w_object_t *object;
        w_button_t *button;
        w_frame_t *box;
        w_textbox_t *text;
        void (*changed) (w_object_t *, int);
        int state;
};

int w_checkbox_set_str (w_object_t *object, char *str);
int w_checkbox_set_changed (w_object_t *object, void (*changed) (w_object_t *, int));
int w_checkbox_set_style (w_object_t *object, FRAME_SHAPE shape, FRAME_SHADOW shadow);
int w_checkbox_set_image (w_object_t *object, unsigned int style, unsigned int rotation, unsigned int nimgs, char **imgs);
int w_checkbox_set_boxstyle (w_object_t *object, FRAME_SHAPE shape, FRAME_SHADOW shadow);
int w_checkbox_set_boximage (w_object_t *object, unsigned int style, unsigned int rotation, unsigned int nimgs, char **imgs);
int w_checkbox_set_rgb (w_object_t *object, int r, int g, int b);
int w_checkbox_set_size (w_object_t *object, int size);
int w_checkbox_set_properties (w_object_t *object, TEXTBOX_PROPERTIES properties);
void w_checkbox_geometry (w_object_t *object);
void w_checkbox_draw (w_object_t *object);
void w_checkbox_state (w_object_t *object, int state);
void w_checkbox_released (w_object_t *object, int btn);
void w_checkbox_uninit (w_object_t *object);
int w_checkbox_init (w_window_t *window, w_checkbox_t **checkbox, w_object_t *parent);

/* progressbar.c */
struct w_progressbar_s {
        w_object_t *object;
        w_frame_t *frame;
        w_frame_t *box;
        w_textbox_t *text;
        unsigned int level;
        void (*changed) (w_object_t *, int);
};

int w_progressbar_set_changed (w_object_t *object, void (*changed) (w_object_t *, int));
int w_progressbar_set_style (w_object_t *object, FRAME_SHAPE shape, FRAME_SHADOW shadow);
int w_progressbar_set_image (w_object_t *object, unsigned int style, unsigned int rotation, unsigned int nimgs, char **imgs);
int w_progressbar_set_boxstyle (w_object_t *object, FRAME_SHAPE shape, FRAME_SHADOW shadow);
int w_progressbar_set_boximage (w_object_t *object, unsigned int style, unsigned int rotation, unsigned int nimgs, char **imgs);
void w_progressbar_level (w_object_t *object, unsigned int level);
void w_progressbar_geometry (w_object_t *object);
int w_progressbar_init (w_window_t *window, w_progressbar_t **progressbar, w_object_t *parent);
void w_progressbar_uninit (w_object_t *object);

/* scrollbar.c */
struct w_scrollbufferbar_s {
        w_object_t *object;
        w_frame_t *frame;
        w_button_t *add;
        w_button_t *sub;
        w_frame_t *box;
};

struct w_scrollbuffer_s {
        w_object_t *object;
        w_frame_t *frame;
        w_scrollbufferbar_t *vertical;
        w_object_t *child;
        void (*slide) (w_object_t *, int, int, int *, int *);
};

void w_scrollbuffer_set_slide (w_object_t *object, void (*slide) (w_object_t *, int, int, int *, int *));
void w_scrollbufferbar_add_pressed (w_object_t *object, int button);
void w_scrollbufferbar_sub_pressed (w_object_t *object, int button);
void w_scrollbufferbar_geometry (w_object_t *object);
void w_scrollbufferbar_uninit (w_object_t *object);
int w_scrollbufferbar_init (w_window_t *window, w_scrollbufferbar_t **scrollbufferbar, w_object_t *parent);
int w_scrollbuffer_set_boxstyle (w_object_t *object, FRAME_SHAPE shape, FRAME_SHADOW shadow);
int w_scrollbuffer_set_boximage (w_object_t *object, unsigned int style, unsigned int rotation, unsigned int nimgs, char **imgs);
int w_scrollbuffer_set_addstyle (w_object_t *object, FRAME_SHAPE shape, FRAME_SHADOW shadow);
int w_scrollbuffer_set_addimage (w_object_t *object, unsigned int style, unsigned int rotation, unsigned int nimgs, char **imgs);
int w_scrollbuffer_set_substyle (w_object_t *object, FRAME_SHAPE shape, FRAME_SHADOW shadow);
int w_scrollbuffer_set_subimage (w_object_t *object, unsigned int style, unsigned int rotation, unsigned int nimgs, char **imgs);
void w_scrollbuffer_slide (w_object_t *object, int vertical, int horizontal);
void w_scrollbuffer_set_child (w_object_t *object, w_object_t *child);
void w_scrollbuffer_geometry (w_object_t *object);
void w_scrollbuffer_uninit (w_object_t *object);
int w_scrollbuffer_init (w_window_t *window, w_scrollbuffer_t **scrollbuffer, w_object_t *parent);

/* window.c */
struct w_window_s {
        s_window_t *window;
        w_object_t *object;
        w_object_t *focus;
        s_list_t *images;
        s_list_t *fonts;
};

void w_window_focus_change_notify (s_window_t *window, w_object_t *focus);
void w_window_change_keybd_focus (s_window_t *window, int type);
void w_window_atevent (s_window_t *window, s_event_t *event);
int w_window_init (w_window_t **window, S_WINDOW type, w_window_t *parent);
int w_window_set_coor (w_window_t *window, int x, int y, int w, int h);
s_image_t * w_window_image_get (w_window_t *window, char *image);
int w_window_image_add (w_window_t *window, char *image);
s_font_t * w_window_font_get (w_window_t *window, char *font);
int w_window_font_add (w_window_t *window, char *font);
int w_window_uninit (w_window_t *window);

#endif /* W_WIDGET_H_ */

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