GUI.cpp

#include <stdio.h>
#include <iostream>
#include "GUI.h"
#include "queue"

#include "kazuminlib/PPM.h"
#include "kazuminlib/BMP.h"

using namespace std;
using namespace kazumin;

//typedef void (GUI::*GUIFunc_i)(int);

unsigned char *g_img;
thread *g_hThread;

void close();
void passiveMotionCallback(int, int);


void test(int val){
//	cout<<"test "<<val<<endl;

	//PPMのテスト
	PPM *ppm;
	ppm = new PPM();
	ppm->ChangeSize(640, 400);
	ppm->LoadRGB(g_img, 640, 400);
	ppm->Write("screenshot.ppm");
	delete ppm;
	
	//Bitmapのテスト
	BMP *bmp;
	bmp = new BMP();
	bmp->ChangeSize(640, 400);
	bmp->LoadRGB(g_img, 640, 400);
	bmp->Write("screenshot.bmp");
	delete bmp;
	
	return;
}

std::queue<std::pair <int, int>> out_buf;
void keyboard_callback(unsigned char key, int x, int y){
    out_buf.push(std::make_pair(key - '0', 1));
    fprintf(stderr, "%d\n", key);
}

void mouse_callback(int x, int y){
    out_buf.push(std::make_pair(0, 12));
    out_buf.push(std::make_pair(x, 12));
    out_buf.push(std::make_pair(y, 12));
    fprintf(stderr, "x : %x\n", x);
    fprintf(stderr, "y : %x\n", y);
}
void click_callback(int button, int status, int x, int y){
    out_buf.push(std::make_pair(0, 12));
    out_buf.push(std::make_pair(x, 12));
    out_buf.push(std::make_pair(y, 12));
    fprintf(stderr, "x : %x\n", x);
    fprintf(stderr, "y : %x\n", y);
}

void GUI::ThreadProc(){
try{
//	img = new unsigned char[scrnx * scrny *3];
		
//cout<<"a"<<endl;	
	int argc=1;
	char *argv = new char[1];
	glutInit(&argc, &argv);		//fake command-line args
	
	glutInitDisplayMode(GLUT_RGBA);
	glutInitWindowSize(scrnx, scrny);
	
	hMainWin = glutCreateWindow("display");
	
//	gluOrtho2D(0.0, scrnx, 0.0, scrny);
	glPixelZoom(1,-1);
	
	//glutDisplayFunc(a::display);	//message loopをglutMainLoopではなくwhileでやっていて、その中でdisplayを呼んでいるため必要ない（こうするためにはGui::displayをstaticメンバ関数にする必要がある）
//	GUIFunc_i f = timer;
//	glutTimerFunc(500, f, 0);
	glutPassiveMotionFunc(passiveMotionCallback);
	glutCloseFunc(close);
    glutKeyboardFunc(keyboard_callback);
    //glutMouseFunc(click_callback);
    glutPassiveMotionFunc(mouse_callback);

	int menu = glutCreateMenu(test);
	glutAddMenuEntry("screenshot", 1);
	glutAttachMenu(GLUT_RIGHT_BUTTON);
	
	while(msgflg){	//message loop
		glutMainLoopEvent();
		this->display();
	}

}

catch(char m){
	glutDestroyWindow(hMainWin);
	cout<<"destroy"<<endl;
	return;
}

}

void passiveMotionCallback(int x, int y){
	printf("passive motion");
}

void close(){
	//goto gui_thread_end;
	printf("close\n");
//	g_hThread->terminate();
	throw 'e';
}


void GUI::display(){
	if(disp != NULL){
		img = disp->Draw();	g_img = img;
	}
	
	glClearColor(0.0, 0.0, 0.0, 0.0);
	glClear(GL_COLOR_BUFFER_BIT);
	glRasterPos2f(-1,1);
//	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
	if(img != NULL){
		glDrawPixels(scrnx, scrny, GL_RGB, GL_UNSIGNED_BYTE, disp->Draw());
	}
//	glMatrixMode(GL_MODELVIEW);
	glFlush();
}

/*
void GUI::timer(int val){
	glutPostRedisplay();
}
*/

void GUI::init(){
	disp = NULL;
	img = NULL;
	scrnx = DEFAULT_SCRNX;
	scrny = DEFAULT_SCRNY;
	msgflg = true;
}

GUI::GUI(){
	init();
}

GUI::GUI(unsigned char *img){
	init();
	ChangeImgAddr(img);
}


GUI::GUI(Display *disp){
	init();
	ChangeDisplay(disp);
}


GUI::~GUI(){
	msgflg = false;
	hThread->detach();
	delete hThread;
//	delete img;
}

void GUI::OpenWindow(){
	hThread = new thread(&GUI::ThreadProc, this);	//メンバ関数を指定する場合は第２引数=this
	g_hThread = hThread;
	
//	hThread->join();	//とりあえず終わるまで待つ
}

void GUI::ChangeImgAddr(unsigned char *img){
	if(img == NULL)
		return;
	this->img = img;
}


void GUI::ChangeDisplay(Display *disp){
	if(disp == NULL) return;
	this->disp = disp;	//描画スレッドのほうで不整合が起きるのは今は気にしない
	ChangeImgAddr(disp->img);
}