button.c

EGui是一个开源的图形系统软件,类似于QT/Embedded、GTK-FB、MicroWindow。目标是嵌入式平台整合解 决方案。基于Linux Framebuffer 设备驱动上实现。有完

/********************************************************
 * Egui code,LGPL
 * Function : button 
 * Author: [e-mail]
 * Data : 2006-03-22
 * $Id: button.c,v 1.9 2006/04/09 23:32:28 hjs Exp $
 ********************************************************/
#include <Egui.h>
#include <widget.h>

Efont *font;


EGui_Widget * 
new_button ( EGui_Widget *pwidget ,short x,short y,short w,short h)
{
  EGui_Widget * button;
  widget_list * list;
  EGui_Wfunc  * button_wfunc;
    
  button = (EGui_Widget *) malloc(sizeof (EGui_Widget));
  if (button == NULL)
    {
      printf ("malloc new button failed\n ");
      return (EGui_Widget * )NULL;
    }

  button_wfunc = (EGui_Wfunc *) malloc (sizeof(EGui_Wfunc));
  if (button_wfunc == NULL)
    {
      printf ("malloc new botton_wfunc failed\n ");
      return (EGui_Widget * )NULL;
    }
  memset(button_wfunc,0,sizeof(EGui_Wfunc));

  button->x       = pwidget->x + x;
  button->y       = pwidget->y + y;
  button->width   = button->x + w;
  button->height  = button->y + h;
  button->type    = BUTTON;
  button->func    = button_wfunc;
  button->parent  = pwidget;
  button->window  = pwidget->window;
  button->child   = NULL;
  
  pwidget->child   = button;

  button_init (button_wfunc);

  strcpy (button->name,"button");

  add_newqueue (button);
  
  return button;

}

void button_show (EGui_Widget * widget)
{
  widget->status = DISPLAY_ALL;
}

void button_draw (EGui_Widget  * widget)
{
  short x,y,w,h;
  EGui_Window *window;
  Ecolor color;
  EGui_Widget * button;

  button = widget;

  x  = button->x;
  y  = button->y;
  w  = button->width ;
  h  = button->height ;

  window = button->window;
  
  if (widget->status == DISPLAY_ALL)
    {
      int i = 0;

      new_color( window,&color,0xA0A0A0);
      Egui_rect (x+i,y+i,w-i-2,h-i-2, &color, window);
      
      i++;
      new_color( window,&color,0xF0F0F0);
      /* left vertical */
      Egui_line (x+i,y+i,x+i,h-i-2, &color, window);
      /* up horizontal */
      Egui_line (x+i,y+i,w-i-2,y+i, &color, window);
      
      new_color( window,&color,0x808080);
      /* right vertical */
      Egui_line (w-i,y+i-1,w-i,h-i, &color, window);
      /* bottom horizontal */
      Egui_line (x+i-1,h-i,w-i,h-i, &color, window);     

      i++;
      new_color(window,&color,0xDDDDDD);
      Egui_fill (x+i,y+i,w-i-1,h-i-1, &color, window);
      

      new_color(window,&color,0xFFFFFF);
      Egui_drawstring(x + 6,y + 3,widget->name,font,&color,window);
      new_color(window,&color,0x747474);
      Egui_drawstring(x + 5,y + 2,widget->name,font,&color,window);
   
   
    }  
}

void button_draw_out (EGui_Widget  * widget)
{
  short x,y,w,h;
  EGui_Window *window;
  Ecolor color;
  EGui_Widget * button;

  button = widget;

  x  = button->x;
  y  = button->y;
  w  = button->width ;
  h  = button->height ;

  window = button->window;

  if (widget->status == DISPLAY_ALL)
    {
      int i = 0;

      new_color( window,&color,0xA0A0A0);
      Egui_rect (x+i,y+i,w-i-2,h-i-2, &color, window);
      
      i++;
      new_color( window,&color,0xF0F0F0);
      /* left vertical */
      Egui_line (x+i,y+i,x+i,h-i-2, &color, window);
      /* up horizontal */
      Egui_line (x+i,y+i,w-i-2,y+i, &color, window);
      
      new_color( window,&color,0x808080);
      /* right vertical */
      Egui_line (w-i,y+i-1,w-i,h-i, &color, window);
      /* bottom horizontal */
      Egui_line (x+i-1,h-i,w-i,h-i, &color, window);
      
    
      i++;
      new_color(window,&color,0xDDDDDD);
      Egui_fill (x+i,y+i,w-i-1,h-i-1, &color, window);


      new_color(window,&color,0xFFFFFF);
      Egui_drawstring(x + 6,y + 3,widget->name,font,&color,window);
      new_color(window,&color,0x747474);
      Egui_drawstring(x + 5,y + 2,widget->name,font,&color,window);
    }  
}


void
button_draw_in (EGui_Widget  * widget)
{
  short x,y,w,h;
  EGui_Window *window;
  Ecolor color;
  EGui_Widget * button;

  button = widget;

  x  = button->x;
  y  = button->y;
  w  = button->width ;
  h  = button->height ;

  window = button->window;

  if (widget->status == DISPLAY_ALL)
    {
      int i = 0;
      new_color( window,&color,0x80);      
      Egui_rect (x+i,y+i,w-i-1 ,h-i-1, &color, window);

      i++;
      new_color( window,&color,0xFFFF00);
      Egui_rect (x+i,y+i,w-i-1 ,h-i-1 , &color, window);
    }  

}

void
button_click_left (EGui_Widget  * widget)
{
  short x,y,w,h;
  EGui_Window *window;
  Ecolor color;
  EGui_Widget * button;

  button = widget;

  x  = button->x;
  y  = button->y;
  w  = button->width ;
  h  = button->height ;

  window = button->window;

  if (widget->status == DISPLAY_ALL)
    {
      int i = 1;        
      new_color(window,&color,0xA0A0A0);
      Egui_fill (x+i,y+i,w-i-1,h-i-1, &color, window);

      new_color(window,&color,0x0);
      Egui_drawstring(x + 5,y + 2,widget->name,font,&color,window);
    }  

}

void
button_rel_left (EGui_Widget  * widget)
{
  short x,y,w,h;
  EGui_Window *window;
  Ecolor color;
  EGui_Widget * button;

  button = widget;

  x  = button->x;
  y  = button->y;
  w  = button->width ;
  h  = button->height ;

  window = button->window;

  if (widget->status == DISPLAY_ALL)
    {
      int i = 1;        
      new_color(window,&color,0xDDDDDD);
      Egui_fill (x+i,y+i,w-i-1,h-i-1, &color, window);
      new_color(window,&color,0x0);
      Egui_drawstring(x + 5,y + 2,widget->name,font,&color,window);
    }  

}


int
button_init (EGui_Wfunc  * button_wfunc)
{
  
  button_wfunc->show        = button_show;
  button_wfunc->draw        = button_draw;
  button_wfunc->click_left  = button_click_left;
  button_wfunc->rel_left    = button_rel_left;
  button_wfunc->draw_in     = button_draw_in;
  button_wfunc->draw_out    = button_draw_out;
  return 0;
}