[Plib-cvs] plib/examples/src/pui/sdl_example Demo.cxx,NONE,1.1 Demo.h,NONE,1.1 EventLoopSDL.cxx,NONE,1.1 EventLoopSDL.h,NONE,1.1 Makefile,NONE,1.1 mainSDL.cxx,NONE,1.1

[Steve B. <sj...@us...>]

Update of /cvsroot/plib/plib/examples/src/pui/sdl_example
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv23399/plib/examples/src/pui/sdl_example

Added Files:
	Demo.cxx Demo.h EventLoopSDL.cxx EventLoopSDL.h Makefile 
	mainSDL.cxx 
Log Message:
Added an example program for using PLIB in SDL.


--- NEW FILE: Demo.cxx ---
#include <stdio.h>
#include <GL/gl.h>
#include <plib/pu.h>

#include "Demo.h"


static puInput* input = NULL;



static void on_quit(puObject*)
{
	exit(0);
}

static void on_say_hello(puObject*)
{
	printf("Hello World!\n");
}

static void on_print_text(puObject*)
{
	printf("Input text: %s\n", input->getStringValue());
}



void initPUI()
{
	puInit();

	puSetDefaultStyle(PUSTYLE_SMALL_BEVELLED);
	puSetDefaultColourScheme(0.75f, 0.75f, 0.75f, 1.0f);
}


void createInterface()
{
	// menu bar
	puMenuBar* menu = new puMenuBar();
	char* menu_text[] = {
		"Quit", 
		"----", 
		"Say Hello", 
		"Print text", 
		NULL 
	};
	puCallback menu_cb[] = {
		on_quit,
		NULL,
		on_say_hello,
		on_print_text,
		NULL 
	};
	menu->add_submenu("Demo", menu_text, menu_cb);
	menu->close();

	// input and buttons
	puButton* button;
	button = new puOneShot(100, 200, 220, 225);
	button->setLegend("Quit");
	button->setCallback(on_quit);

	button = new puOneShot(100, 250, 220, 275);
	button->setLegend("Say Hello");
	button->setCallback(on_say_hello);

	button = new puOneShot(100, 300, 220, 325);
	button->setLegend("Print text");
	button->setCallback(on_print_text);

	input = new puInput(250, 300, 450, 325);
}


--- NEW FILE: Demo.h ---
#ifndef DEMO_H
#define DEMO_H


void initPUI();

void createInterface();


#endif

--- NEW FILE: EventLoopSDL.cxx ---
#include <GL/gl.h>
#include <SDL/SDL_keysym.h>
#include <plib/pu.h>

#include "EventLoopSDL.h"


static bool stop_requested;



void EventLoopSDL::run()
{
	SDL_Event event;

	stop_requested = false;
	while (!stop_requested) {

		// process events
[...141 lines suppressed...]

int EventLoopSDL::onMouseDown(int btn, int x, int y)
{
	return puMouse(translateMouse(btn), PU_DOWN, x, y);
}

int EventLoopSDL::onMouseUp(int btn, int x, int y)
{
	return puMouse(translateMouse(btn), PU_UP, x, y);
}

int EventLoopSDL::onKeyDown(const SDL_keysym& keysym)
{
	return puKeyboard(translateKey(keysym), PU_DOWN);
}

int EventLoopSDL::onKeyUp(const SDL_keysym& keysym)
{
	return puKeyboard(translateKey(keysym), PU_UP);
}

--- NEW FILE: EventLoopSDL.h ---
#ifndef EVENTLOOPSDL_H
#define EVENTLOOPSDL_H


class EventLoopSDL
{
public:
	// starts the main loop
	static void run();

	// requests main loop termination
	static void stop();

	// draw one frame
	static void draw();

	// translates an SDL keysym to the PUI equivalent
	static int translateKey(const SDL_keysym& keysym);

	// translates an SDL mouse button to the PUI equivalent
	static int translateMouse(int btn);

	// event handlers
	static int onMouseMove(char state, int x, int y);
	static int onMouseDown(int btn, int x, int y);
	static int onMouseUp(int btn, int x, int y);
	static int onKeyDown(const SDL_keysym& keysym);
	static int onKeyUp(const SDL_keysym& keysym);
};


#endif

--- NEW FILE: Makefile ---
SDL_LDFLAGS := $(shell sdl-config --libs)
OGL_LDFLAGS := -lGL -lGLU
PUI_LDFLAGS := -lplibpu -lplibfnt -lplibsg -lplibul
LDFLAGS := $(OGL_LDFLAGS) $(SDL_LDFLAGS) $(PUI_LDFLAGS) -lm

SDL_CFLAGS := $(shell sdl-config --cflags)
PUI_CFLAGS := -DPU_USE_SDL
CXXFLAGS := -Wall -g $(SDL_CFLAGS) $(PUI_CFLAGS)

CXX := g++


OBJECT := mainSDL.o EventLoopSDL.o Demo.o


%.o : %.cxx
	$(CXX) $(CXXFLAGS) -c $<


sdl_example: $(OBJECT)
	$(CXX) -o $@ $+ $(LDFLAGS)


.PHONY: clean depend

clean:
	rm -f *.o sdl_example

depend:
	makedepend -Y *.cxx >/dev/null 2>&1


# Do 'make depend' to regenerate dependencies.
# DO NOT DELETE

Demo.o: Demo.h
EventLoopSDL.o: EventLoopSDL.h
mainSDL.o: Demo.h EventLoopSDL.h

--- NEW FILE: mainSDL.cxx ---
#include <stdlib.h>
#include <plib/pu.h>
#include "SDL.h"

#include "Demo.h"
#include "EventLoopSDL.h"


// default window size
static const int WIDTH  = 640;
static const int HEIGHT = 480;


static void initSDL(int w, int h, const char *title)
{
	if (SDL_Init(SDL_INIT_VIDEO) < 0) {
		fprintf(stderr, "Unable to initialize SDL: %s\n", SDL_GetError());
		exit(1);
	}
	atexit(SDL_Quit);

	if (SDL_SetVideoMode(w, h, 0, SDL_OPENGL | SDL_ANYFORMAT/* | SDL_FULLSCREEN*/) == NULL) {
		fprintf(stderr, "Unable to create OpenGL screen: %s\n", SDL_GetError());
		exit(1);
	}

	if (title)
		SDL_WM_SetCaption(title, NULL);

	SDL_EnableKeyRepeat(150, 75);
	SDL_EnableUNICODE(true);
}


void initOGL(int w, int h)
{
	glViewport(0, 0, w, h);
	glClearColor(0.1f, 0.4f, 0.1f, 1.0f);

	glEnable(GL_BLEND);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glAlphaFunc(GL_GREATER, 0.1f);
}


int main(int argc, char *argv[])
{
	initSDL(WIDTH, HEIGHT, "PUI with SDL sample");
	initOGL(WIDTH, HEIGHT);
	initPUI();

	createInterface();
	
	EventLoopSDL::run();
	
	return 0;
}