www.pudn.com > dos_gui.zip > BUTTON.CPP

// 1993 (c) ALL RIGHTS RESERVED 
// AUTHOR  BY XuYongYong 
 
/* 	button.cpp 
*/ 
#include "button.h" 
#include "yyxsys1.h" 
 
/**************************************************************************/ 
button_class::button_class (int ID,char *title_hotkey, 
	int left,int top,int width,int height ) 
	:	control_class(ID,title_hotkey,NORMAL ,BUTTON, 
			left,top,width,height,UNPUSHED,PUSHED,UNPUSHED ) 
{ 
	setup_control(); 
} 
 
void button_class::setup_control() 
{ 
  int text_width =textwidth (title); 
  int text_height=textheight(title); 
	title_pos_x =bounds.left + (bounds.right-bounds.left-text_width )/2; 
	title_pos_y =bounds.top  + (bounds.bottom-bounds.top-text_height)/2-2; 
} 
void button_class::draw () 
{   if ( status & INVISIBLE) return;    // INVISIBLE 
	draw_out_button (bounds); 
	control_class::draw (); 
} 
/**************************************************************************/ 
void button_class::select ( ) 
{   control_class::select (); 
 
  Trect Arect =bounds; 
	setcolor (BLACK); 
	FrameRoundRect (Arect,2,2); 
	InsetRect (&Arect,1,1); 
	FrameRoundRect (Arect,2,2); 
} 
/**************************************************************************/ 
void button_class::unselect ( ) 
{   control_class::unselect ( ); 
 
  Trect Arect =bounds; 
	setcolor (WHITE); 
	InsetRect (&Arect,1,1); 
	FrameRoundRect (Arect,2,2); 
} 
/**************************************************************************/ 
int button_class::control_change_value 
	(int new_value ) 
{   if (control_class::control_change_value(new_value)==TRUE) 
		return TRUE; 
	switch (new_value) { 
		case UNPUSHED: 
			draw (); 
			break; 
		case PUSHED: 
			FillRoundRect (bounds,2,2,LIGHTGRAY); 
			setcolor (BLACK); 
			outtextxy (title_pos_x,title_pos_y,title); 
			break; 
	} 
	current_value =new_value; 
	return TRUE; 
} 
/**************************************************************************/ 
int button_class::key_pressed_handler	(int key_scan_num) 
{   switch (key_scan_num ) { 
		case ENTERKEY: 
		case SPACEKEY: 
			control_change_value 
				(PUSHED); 
			delay(200); 
			control_change_value 
				(UNPUSHED); 
			thequeue.SendMessage(ID, 
				ButtonPushedMSG,this); 
			return TRUE; 
		default:return control_class::key_pressed_handler (key_scan_num); 
 
	} 
} 
 
int button_class::msg_handler(MSG& message) 
{ 
	switch (message.Action){ 
		case MouseLButtonDownMSG: 
			control_change_value 
				(PUSHED); 
			delay(200); 
			control_change_value 
				(UNPUSHED); 
			thequeue.SendMessage(ID, 
				ButtonPushedMSG,this); 
			return TRUE; 
		default:return control_class::msg_handler (message); 
 
	} 
}