// PROGRAM: TestReadSavePng.cexe
// Test program for ReadSavePng.fp
// Creates a knob control and saves it to a PNG file
// Then reads it from the file and displays it into a picture window

#include <userint.h>
#include <ansi_c.h>

#include "ReadSavePng.h"

int Pnl=0;

void SavePng(void) {
	int Pnl, CtrlKnob;
	Pnl = NewPanel (0, "Test - Save to Png", 30, 30, 150, 150);
	DisplayPanel(Pnl);
	CtrlKnob = NewCtrl (Pnl, CTRL_NUMERIC_KNOB, "Knob", 25, 30);

	Png_SetParameters (1, 0, 72, Z_DEFAULT_COMPRESSION, 0);
	Png_SetTextTitle("Knob", 0);
	Png_SetTextAuthor("Guillaume Dargaud", 0);
	Png_SetTextDescription("Knob from LabWindows/CVI User interface", 1);
	Png_SetTextComment("Test of the ReadSavePng library", 1);
	Png_SavePanelControlToFile(Pnl, 0, "Test.png");

	MessagePopup("Image Saved", "Click [OK] to continue.");
	DiscardPanel(Pnl);
}

void ReadPng(void) {
	int Pnl, Picture, Title, Author, Description, Comment;
	Pnl = NewPanel (0, "Test - Read From Png", 0, 0, 300, 300);
	DisplayPanel(Pnl);
	
	Picture = NewCtrl (Pnl, CTRL_PICTURE, "", 0, 0);
	SetCtrlAttribute (Pnl, Picture, ATTR_FIT_MODE, VAL_SIZE_TO_IMAGE);

	Title		= NewCtrl (Pnl, CTRL_TEXT_MSG, "", 240, 0);
	Author		= NewCtrl (Pnl, CTRL_TEXT_MSG, "", 255, 0);
	Description = NewCtrl (Pnl, CTRL_TEXT_MSG, "", 270, 0);
	Comment		= NewCtrl (Pnl, CTRL_TEXT_MSG, "", 285, 0);

	Png_ReadControlFromFile(Pnl, Picture, 0, "Test.png");
	SetCtrlVal(Pnl, Title, Png_GetTextTitle());
	SetCtrlVal(Pnl, Author, Png_GetTextAuthor());
	SetCtrlVal(Pnl, Description, Png_GetTextDescription());
	SetCtrlVal(Pnl, Comment, Png_GetTextComment());

	MessagePopup("Image read", "Click [OK] to exit.");
	DiscardPanel(Pnl);
}


int main (int argc, char *argv[]) {
	SavePng();
	ReadPng();
	return 0;
}