buttons.c

Very very small GUI. Usefull for small system, without OS or small OS. Event driven, support user m

#include <membox.h>
#include "GUI.h"
#include "Globalvars.h"
#include "pwin.h"

#include "guidebug.h"

#define BUTTON_DEFAULT_FONT			F9x15_pwf
extern unsigned char xhuge _HeapGUI[GUI_HEAP_SIZE];

void cbPaintButton (Pw_GC * gc) {
Pw_Window* win;
Pw_Coord w, h, x, y, wt;
char *s;
   win = Pw_GCGetWindow(gc);
   Pw_WindowGetSize(win, &w, &h);
   Pw_DrawFrameRect(gc, 0, 0, w, h, 2, NULL);	
   s = (char *) Pw_WindowGetClientData(win);
   Pw_GCSetFont(gc, BUTTON_DEFAULT_FONT); 			 	
   wt = Pw_FontGetStringWidth(gc->font, s);		
   x = (w - wt)/2;  
   y = Pw_GCGetFontHeight(gc)+(h - Pw_GCGetFontHeight(gc))/2 - Pw_FontGetDescent(gc->font)+1;
   if (Pw_WindowIsInFocus(win)) {
   		Pw_GCSetColor(gc, pw_white_pixel);
		Pw_FillRect(gc, 3, 3, w - 6, h - 6);
//		Pw_DrawGrayTextBackgr(gc, 0, 0, w-1, h-1);
   		Pw_GCSetColor(gc, pw_black_pixel);	 
   		Pw_DrawString(gc, x, y, s);		
   }
   else {
//   		Pw_DrawFrameRect(gc, 3, 3, w-6, h-6, 1, NULL);	
   		Pw_GCSetColor(gc, pw_white_pixel);
   		Pw_DrawString(gc, x, y, s);		
   }
}


int cbButton (Pw_Event * ev) {
Pw_Window * win;
int CtrlType;
	win = Pw_EventGetWindow(ev); 
	CtrlType = Pw_WindowGetClientDataId(win);
	switch (Pw_EventGetType(ev)) {
		case Pw_DestroyEventType :
//			GUI_Log1("destroy BUTTON Button", (unsigned long)Pw_EventGetWindow(ev));
			_free_boxh (_HeapGUI, Pw_EventGetWindow(ev));
			return TRUE;

/*		case Pw_KeyPressEventType: 
			key = ev->key.keycode;
			switch (key) {
/*				case ESC_KEY :
GUI_Log("BUTTON ESC");
					BPA_GUI_SendMessage(win->parent, GUI_BUTTON_PRESSED, &CtrlType);//&MeasPoint);													
					return TRUE;
				case ENTER_KEY :
GUI_Log("BUTTON ENTER");
					BPA_GUI_SendMessage(win->parent, GUI_BUTTON_PRESSED, &CtrlType);//&MeasPoint);			
					return TRUE;	   */
	}	
	return FALSE;
}

Pw_Window * CreateButton (const CONTROL_CREATE_INFO *info_struct , 
							 Pw_Window * Parent, Pw_EventCb cb) {
Pw_Window * butt;
	 	butt = _calloc_boxh (_HeapGUI);
		cb = cb;
	 	Pw_WindowCreate(Parent, info_struct->x0, info_struct->y0, 
								info_struct->xSize, info_struct->ySize, butt);	
//GUI_Log1("BUTTON ",(long) butt);
		Pw_WindowSetClientDataId(butt, info_struct->ID); 
		Pw_WindowSetClientData(butt, info_struct->Data); 		
		Pw_WindowSetRepaintCallback(butt, cbPaintButton);
		Pw_WindowSetEventCallback(butt, cbButton);
		Pw_WindowSetFocusAccept(butt, info_struct->FocusAccept);
		Pw_WindowMap(butt);
	return butt;
}