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

// 1993 (c) ALL RIGHTS RESERVED 
// AUTHOR:  XuYongYong 
 
/* 	yyxctrl.cpp 
*/ 
#include "yyxctrl.h" 
#include "applicat.h" 
/**************************************************************************/ 
void control_class::clear_control ( ) 
{ 
//	setcolor (WHITE); 
//	setfillstyle (SOLID_FILL, WHITE); 
//	if (title[0] !='\x0')  {  bar (title_pos_x,title_pos_y, 
//		title_pos_x+textwidth(title),title_pos_y +textheight (title)); } 
	FillRect (bounds, WHITE); 
} 
 
void  control_class::setup_control( ) 
{   // used for setting up inner variables , protected or private 
	// not public---> public is defined by outer functions 
} 
 
void  control_class::update_control ( ) 
{ 
	clear_control(); 
	setup_control(); 
	draw (); 
	control_change_value (current_value); 
} 
 
void control_class::draw ( ) 
{   if ( status & INVISIBLE) return;    // INVISIBLE 
	setcolor (BLACK); 
	outtextxy (title_pos_x,title_pos_y,title); 
	draw_hotkey(title,hotkey,title_pos_x,title_pos_y); 
} 
 
void control_class::select ( ) 
{  // INVISIBLE here not detected //to save time 
	setcolor (DARKGRAY); 
	setlinestyle( DOTTED_LINE,1,NORM_WIDTH ); 
	rectangle (title_pos_x-2,title_pos_y+1,title_pos_x+textwidth (title)+2, 
		title_pos_y+textheight (title)+2 ); 
	setlinestyle( SOLID_LINE,1,NORM_WIDTH ); 
} 
 
void control_class::unselect ( ) 
{  // INVISIBLE here not detected //to save time 
	setcolor (LIGHTGRAY); 
	setlinestyle( DOTTED_LINE,1,NORM_WIDTH ); 
	rectangle (title_pos_x-2,title_pos_y+1,title_pos_x+textwidth (title)+2, 
		title_pos_y+textheight (title)+2 ); 
	setlinestyle( SOLID_LINE,1,NORM_WIDTH ); 
} 
 
int control_class::control_change_value 
	( int new_value) 
{ 
	if ((new_value<	min_value)|| 
		(new_value>	max_value))	return TRUE; 
	else return FALSE; 
} 
 
int control_class:: key_pressed_handler (int key_scan_num ) 
{  	return FALSE; 
} 
 
 
int control_class::msg_handler (MSG& message) 
{ // may be should exists in group key_pressed_handler 
	switch (message.Action){ 
		case KeyPressedMSG: 
			return key_pressed_handler( key_code ); 
	} 
	return FALSE; 
} 
 
 
control_class::control_class 
	(int ID,char *title_hotkey,byte status,byte type, 
	 int left,int top,int width,int height, 
	 int min_value,int max_value,int current_value 
	 ):object_class (ID,title_hotkey,status,type,left,top,width,height) 
{// Tcontrol  *ptemp_control, *ptemp1; 
 
	title_pos_x =left+20; 
	title_pos_y =top+2; 
 
	this->min_value =min_value; 
	this->current_value =current_value; 
	this->max_value =max_value; 
 
	pleft  =this;     /* in windows */ 
	pright =this;     /* user complete the last */ 
} 
 
control_class::~control_class() 
{ 
}