dialog.c

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

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

Pw_Window * FocusedControl;
extern unsigned char xhuge _HeapGUI[GUI_HEAP_SIZE];

void cbRepaintDialog(Pw_GC * gc) {
Pw_Window* win;
Pw_Coord w, h;
   win = Pw_GCGetWindow(gc);
   Pw_WindowGetSize(win, &w, &h);
   Pw_DrawFrameRect(gc, 0, 0, w, h, 1, NULL);	
}

Pw_Window *  GetPrevFocusAccepteble(void) {
Pw_Window * ctrl;
	ctrl = Pw_WindowGetWindowAbove(FocusedControl);
	while (ctrl && !(ctrl->focus_accept)) {
		ctrl = Pw_WindowGetWindowAbove(ctrl);
	}
	return (ctrl);
}

Pw_Window *  GetNextFocusAccepteble(void) {
Pw_Window * ctrl;
	ctrl = Pw_WindowGetWindowBelow(FocusedControl);
	while (ctrl && !(ctrl->focus_accept)) {
		ctrl = Pw_WindowGetWindowBelow(ctrl);
	}
	return (ctrl);
}


//----------------------------------------------------------------
int cbDialog (Pw_Event * ev) {
Pw_Window * win ;
Pw_Window * new_focus_control;
int key;
TResFunc * ResProc;
int CtrlType;
	win = Pw_EventGetWindow(ev); 
	ResProc = (TResFunc*) Pw_WindowGetClientData(win);
	switch (Pw_EventGetType(ev)) {
		case Pw_KeyPressEventType: 
			key = ev->key.keycode;
			switch (key) {
				case UP_KEY :
					FocusedControl = Pw_DisplayGetFocusWindow(&Display);
					new_focus_control = GetPrevFocusAccepteble();
					if (new_focus_control && new_focus_control->focus_accept) {
						Pw_WindowSetFocus(new_focus_control);													
						Pw_WindowRepaint(FocusedControl);
						Pw_WindowRepaint(new_focus_control);
					}
					return TRUE;

				case DOWN_KEY :
					FocusedControl = Pw_DisplayGetFocusWindow(&Display);
					new_focus_control = GetNextFocusAccepteble();
					if (new_focus_control && new_focus_control->focus_accept) {
						Pw_WindowSetFocus(new_focus_control);						
						Pw_WindowRepaint(FocusedControl);
						Pw_WindowRepaint(new_focus_control);
					}
					return TRUE;

				case ESC_KEY :
					if (ResProc) {
						ResProc(Pw_EventGetWindow(ev), FALSE);											
						return TRUE;
					}
				case ENTER_KEY :
					new_focus_control = Pw_DisplayGetFocusWindow(&Display);
					CtrlType = Pw_WindowGetClientDataId(new_focus_control);
					if (CtrlType == OK_BUTT_ID) {
						if (ResProc) {
							ResProc(Pw_EventGetWindow(ev), TRUE);
							return TRUE;
						}
					}
					if (CtrlType == CANCEL_BUTT_ID) {
						if (ResProc) {
							ResProc(Pw_EventGetWindow(ev), FALSE);
							return TRUE;
						}
					}
/*					else
						ResProc(Pw_EventGetWindow(ev), FALSE);	*/											
					return FALSE;
			}
			break;
		case Pw_UserEventType :		
			break;
		case Pw_DestroyEventType :
//			GUI_Log1("DESTROY DIALOG", (unsigned long)Pw_EventGetWindow(ev));
			_free_boxh (_HeapGUI, Pw_EventGetWindow(ev));
			return TRUE;
	}
	return FALSE;
}

//----------------------------------------------------------------
Pw_Window * DialogCreate (const CONTROL_CREATE_INFO *info_struct , 
							int CtrlCnt, Pw_Window * Parent,
							TResFunc ResProc, 	
                            int x0, int y0, int width, int heigth) {
Pw_Window * DialogWin;
Pw_Window * Control;
//GUI_Log("CREATE DIALOG");
	DialogWin = _calloc_boxh (_HeapGUI);
	Pw_WindowCreate(Parent, x0, y0, width, heigth, DialogWin);	
	Pw_WindowSetRepaintCallback(DialogWin, cbRepaintDialog);
	Pw_WindowSetEventCallback(DialogWin, cbDialog);
	Pw_WindowSetClientData(DialogWin, (void*)ResProc); 		
	Pw_WindowSetFocusAccept(DialogWin, TRUE);
	Pw_WindowMap(DialogWin);
	Pw_WindowSetFocus(DialogWin);
	info_struct += CtrlCnt;
	FocusedControl = NULL;
//GUI_Log1("Control count", CtrlCnt);
	while (CtrlCnt-- > 0) {
		info_struct--;
		Control = info_struct->ControllCreate(info_struct, DialogWin, NULL);
		if (info_struct->DefaultControl)
			FocusedControl = Control;	
  	}
	if (FocusedControl)	{
		Pw_WindowSetFocus(FocusedControl);
		Pw_WindowRepaint(FocusedControl);
	}
//GUI_Log("DIALOG Created");
  return DialogWin; 
}

void DialogFree(Pw_Window * dialog) {
	Pw_WindowDestroy (dialog);
//GUI_Log1("RETURN ", (long)Pw_WindowGetChildWindowOnTop(Desktop));
	Pw_WindowSetFocus(GetTopChildVisibleVindow(Desktop));
}