inputline.c

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

#include <membox.h>
#include <stdio.h>
#include <math.h>

#include "GUI.h"
#include "Globalvars.h"
#include "pwin.h"
#include "guidebug.h"

void SendToHost(char * str, INT16U t);

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

void FormatDataValue (Pw_Window* win) {
struct TInputLineData * data;
	data = (struct TInputLineData *) Pw_WindowGetClientData(win);
	sprintf(data->Text, data->Format, data->Digit, data->Dec, *(data->Value));
}

void cbPaintInpLine (Pw_GC * gc) {
Pw_Window* win;
Pw_Coord w, h, x, y, wt;
struct TInputLineData * data;

   win = Pw_GCGetWindow(gc);
   Pw_WindowGetSize(win, &w, &h);
   Pw_GCSetFont(gc, INPUT_LINE_DEFAULT_FONT); 			 	
   Pw_DrawFrameRect(gc, 0, 0, w, h, 1, NULL);	
   data = (struct TInputLineData *) Pw_WindowGetClientData(win);
   wt = Pw_FontGetStringWidth(gc->font, data->Text);
   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, 0, 0, w, h);
   		Pw_GCSetColor(gc, pw_black_pixel);	 
   }
   else {
   		Pw_GCSetColor(gc, pw_white_pixel);
   }
   Pw_DrawString(gc, x, y, (Pw_Char *) data->Text);		
}


int cbInputLine (Pw_Event * ev) {
Pw_Window * win;
int key;
int CtrlType;
struct TInputLineData * data;
	win = Pw_EventGetWindow(ev); 
	CtrlType = Pw_WindowGetClientDataId(win);
	data = (struct TInputLineData *) Pw_WindowGetClientData(win);
	switch (Pw_EventGetType(ev)) {
		case Pw_DestroyEventType :
//			GUI_Log1("destroy INPUTLINE", Pw_EventGetWindow(ev));
			_free_boxh (_HeapGUI, Pw_EventGetWindow(ev));
			return TRUE;
		case Pw_KeyPressEventType: 
			key = ev->key.keycode;
			switch (key) {
				case LEFT_KEY :
					if (CtrlType == INPUTTEXT_ID) {
						if (*(data->Value) > (data->MinValue)) {
							*(data->Value) -= data->Inc;
							FormatDataValue(win);
							Pw_WindowRepaint(win);
						}
					}
					else
						if (CtrlType == ONOFFTEXT_ID) {
							*(data->Value) = 0;
							data->Text[0] = 'O';
							data->Text[1] = 'F';
							data->Text[2] = 'F';
							data->Text[3] = 0;
							Pw_WindowRepaint(win);
						}
					return TRUE;
				case RIGHT_KEY :
					if (CtrlType == INPUTTEXT_ID) {
						if (*(data->Value) < (data->MaxValue)) {
							*(data->Value) += data->Inc;
							FormatDataValue(win);
							Pw_WindowRepaint(win);
						}
					}
					else
						if (CtrlType == ONOFFTEXT_ID) {
							*(data->Value) = 1;
							data->Text[0] = 'O';
							data->Text[1] = 'N';
							data->Text[2] = 0;
							Pw_WindowRepaint(win);
						}
					return TRUE;
			}
	}
	return FALSE;
}

Pw_Window * CreateInputLine(const CONTROL_CREATE_INFO *info_struct , 
							 Pw_Window * Parent, Pw_EventCb cb) {
Pw_Window * InpLine;
struct TInputLineData * data;

	 	InpLine = _calloc_boxh (_HeapGUI);
		cb = cb;
	 	Pw_WindowCreate(Parent, info_struct->x0, info_struct->y0, 
								info_struct->xSize, info_struct->ySize, InpLine);	
		data = info_struct->Data;
		if(data->Format == NULL) data->Format = "%*.*f\0";
		Pw_WindowSetClientDataId(InpLine, info_struct->ID); 
		Pw_WindowSetClientData(InpLine, data); 		
		Pw_WindowSetRepaintCallback(InpLine, cbPaintInpLine);
		Pw_WindowSetEventCallback(InpLine, cbInputLine);
		Pw_WindowSetFocusAccept(InpLine, info_struct->FocusAccept);
		if (info_struct->ID == INPUTTEXT_ID)
			FormatDataValue(InpLine);
		Pw_WindowMap(InpLine);
	return InpLine;
}