nuclear@24: #include <stdlib.h>
nuclear@24: #include <iostream>
nuclear@24: #include <sstream>
nuclear@24: #include <string>
nuclear@24: #include "opengl.h"
nuclear@24: #include "cmdcon.h"
nuclear@24: #include "drawtext.h"
nuclear@24: #include "datapath.h"
nuclear@24: #include "cfg.h"
nuclear@24: 
nuclear@24: #define FONT_FILENAME	"droid_sans_mono.ttf"
nuclear@24: 
nuclear@24: static void runcmd();
nuclear@24: static void complete();
nuclear@24: 
nuclear@24: static struct dtx_font *font;
nuclear@24: 
nuclear@24: std::string cmdline;
nuclear@24: 
nuclear@24: bool init_cmdcon()
nuclear@24: {
nuclear@24: 	const char *path = datafile_path(FONT_FILENAME);
nuclear@24: 	if(!path) {
nuclear@24: 		fprintf(stderr, "failed to locate font file: %s\n", FONT_FILENAME);
nuclear@24: 		return false;
nuclear@24: 	}
nuclear@24: 
nuclear@26: 	printf("loading font: %s\n", path);
nuclear@29: 	if(!(font = dtx_open_font(path, 14))) {
nuclear@24: 		fprintf(stderr, "failed to open font file: %s\n", path);
nuclear@24: 		return false;
nuclear@24: 	}
nuclear@29: 	dtx_use_font(font, 14);
nuclear@24: 	return true;
nuclear@24: }
nuclear@24: 
nuclear@24: void cleanup_cmdcon()
nuclear@24: {
nuclear@24: 	if(font) {
nuclear@24: 		dtx_close_font(font);
nuclear@24: 	}
nuclear@24: }
nuclear@24: 
nuclear@24: void cmdcon_keypress(int key)
nuclear@24: {
nuclear@24: 	if(isprint(key)) {
nuclear@24: 		cmdline.push_back(key);
nuclear@24: 		return;
nuclear@24: 	}
nuclear@24: 
nuclear@24: 	switch(key) {
nuclear@24: 	case '\n':
nuclear@24: 	case '\r':
nuclear@24: 		runcmd();
nuclear@24: 		cmdline.clear();
nuclear@24: 		break;
nuclear@24: 
nuclear@24: 	case '\t':
nuclear@24: 		complete();
nuclear@24: 		break;
nuclear@24: 
nuclear@24: 	case '\b':
nuclear@24: 		if(!cmdline.empty()) {
nuclear@25: 			cmdline.pop_back();	// <-- C++11
nuclear@24: 		}
nuclear@24: 		break;
nuclear@24: 
nuclear@24: 	default:
nuclear@24: 		break;
nuclear@24: 	}
nuclear@24: }
nuclear@24: 
nuclear@24: void draw_cmdcon()
nuclear@24: {
nuclear@24: 	glMatrixMode(GL_PROJECTION);
nuclear@24: 	glPushMatrix();
nuclear@24: 	glLoadIdentity();
nuclear@29: 	glOrtho(0, cfg.width, cfg.height, 0, -1, 1);
nuclear@24: 	glMatrixMode(GL_MODELVIEW);
nuclear@24: 	glPushMatrix();
nuclear@24: 	glLoadIdentity();
nuclear@24: 
nuclear@29: 	glPushAttrib(GL_ENABLE_BIT | GL_CURRENT_BIT | GL_POLYGON_BIT);
nuclear@29: 	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
nuclear@26: 	glUseProgram(0);
nuclear@24: 	glDisable(GL_DEPTH_TEST);
nuclear@24: 	glDisable(GL_LIGHTING);
nuclear@26: 	glDisable(GL_CULL_FACE);
nuclear@26: 	glEnable(GL_BLEND);
nuclear@24: 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
nuclear@24: 
nuclear@24: 	glBegin(GL_QUADS);
nuclear@29: 	glColor4f(0.2, 0.2, 0.2, 0.6);
nuclear@29: 	glVertex2f(0, 0);
nuclear@29: 	glVertex2f(0, dtx_line_height() * 1.5);
nuclear@29: 	glVertex2f(cfg.width, dtx_line_height() * 1.5);
nuclear@29: 	glVertex2f(cfg.width, 0);
nuclear@24: 	glEnd();
nuclear@24: 
nuclear@29: 	glTranslatef(0, dtx_line_height(), 0);
nuclear@29: 	glScalef(1, -1, 1);
nuclear@29: 
nuclear@24: 	glColor4f(0.2, 0.9, 0.3, 1.0);
nuclear@24: 	dtx_string(cmdline.c_str());
nuclear@24: 	dtx_flush();
nuclear@24: 
nuclear@24: 	glPopAttrib();
nuclear@24: 
nuclear@24: 	glMatrixMode(GL_PROJECTION);
nuclear@24: 	glPopMatrix();
nuclear@24: 	glMatrixMode(GL_MODELVIEW);
nuclear@24: 	glPopMatrix();
nuclear@24: }
nuclear@24: 
nuclear@24: static bool cmd_toggle_wire(std::stringstream &strin)
nuclear@24: {
nuclear@24: 	static bool wire;
nuclear@24: 	wire = !wire;
nuclear@24: 	glPolygonMode(GL_FRONT_AND_BACK, wire ? GL_LINE : GL_FILL);
nuclear@24: 	return true;
nuclear@24: }
nuclear@24: 
nuclear@24: static bool cmd_quit(std::stringstream &strin)
nuclear@24: {
nuclear@24: 	exit(0);
nuclear@24: }
nuclear@24: 
nuclear@24: static struct {
nuclear@24: 	std::string name;
nuclear@24: 	bool (*func)(std::stringstream &strin);
nuclear@24: } cmd[] = {
nuclear@24: 	{"wire", cmd_toggle_wire},
nuclear@24: 	{"quit", cmd_quit},
nuclear@24: 	{"exit", cmd_quit}
nuclear@24: };
nuclear@24: #define NUM_CMD		(int)(sizeof cmd / sizeof *cmd)
nuclear@24: 
nuclear@24: static void runcmd()
nuclear@24: {
nuclear@24: 	std::stringstream strin(cmdline);
nuclear@24: 
nuclear@24: 	std::string token;
nuclear@24: 	strin >> token;
nuclear@24: 
nuclear@24: 	for(int i=0; i<NUM_CMD; i++) {
nuclear@24: 		if(token == cmd[i].name) {
nuclear@24: 			cmd[i].func(strin);
nuclear@24: 			return;
nuclear@24: 		}
nuclear@24: 	}
nuclear@24: 
nuclear@24: 	std::cerr << "unrecognized command: " << token << std::endl;
nuclear@24: }
nuclear@24: 
nuclear@24: static void complete()
nuclear@24: {
nuclear@24: }