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#include "widget.h"
#include "string.h"
#include <stddef.h>
static widget_vtable_t const widget_vtable = {
widget_draw,
widget_get_focus,
widget_model_to_screen,
widget_contains_coordinate,
widget_on_mouse_down,
widget_on_mouse_up,
widget_on_mouse_move,
widget_on_key_down,
widget_on_key_up
};
void widget_init( widget_t *widget, widget_t *parent, const int x, const int y, const int w, const int h, const video_rgb_color_t background_color )
{
memset( widget, 0, sizeof( widget_t ) );
widget->parent = parent;
widget->x = x;
widget->y = y;
widget->w = w;
widget->h = h;
widget->background_color = background_color;
widget->vtable = &widget_vtable;
}
void widget_draw( void *obj, graphics_context_t *context )
{
widget_t *widget = obj;
int x = 0;
int y = 0;
widget->vtable->model_to_screen( widget, &x, &y );
((video_vtable_t *)(context->base.vtable))->draw_rectangle( context, x, y, widget->w, widget->h,
widget->background_color );
}
void widget_get_focus( void *obj, widget_t *widget )
{
widget_t *o = obj;
if( o->parent != NULL ) {
o->parent->vtable->get_focus( o->parent, widget );
}
}
void widget_model_to_screen( void *obj, int *x, int *y )
{
widget_t *widget = obj;
if( widget->parent != NULL ) {
widget->parent->vtable->model_to_screen( widget->parent, x, y );
}
*x += widget->x;
*y += widget->y;
}
bool widget_contains_coordinate( void *obj, const int x, const int y )
{
widget_t *widget = obj;
return widget->x <= x && x < widget->x + widget->w &&
widget->y <= y && y < widget->y + widget->h;
}
void widget_on_mouse_down( void *obj, const int x, const int y )
{
widget_t *widget = obj;
if( widget->focusable ) {
widget->vtable->get_focus( widget, widget );
}
}
void widget_on_mouse_up( void *obj, const int x, const int y )
{
}
void widget_on_mouse_move( void *obj, const int old_x, const int old_y, const int x, const int y )
{
}
void widget_on_key_down( void *obj, char c )
{
}
void widget_on_key_up( void *obj, char c )
{
}
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