# HG changeset patch
# User John Tsiombikas <nuclear@mutantstargoat.com>
# Date 1316082095 -10800
# Node ID 8e93efcd23aea432df803312667abc1ed5147f9e
# Parent  34130f58141acb6883cc29aecb90e6095120075f
added simple example

diff -r 34130f58141a -r 8e93efcd23ae .hgignore
--- a/.hgignore	Thu Sep 15 10:47:38 2011 +0300
+++ b/.hgignore	Thu Sep 15 13:21:35 2011 +0300
@@ -1,6 +1,11 @@
-^libdrawtext\.a$
-^libdrawtext\.so.*
+libdrawtext\.a
+libdrawtext\.so
 drawtext\.dylib$
 ^Makefile$
 \.d$
 \.o$
+\.swp$
+\.tar.gz$
+^examples/fonts
+\.ttf$
+^examples/simple/simple$
diff -r 34130f58141a -r 8e93efcd23ae examples/Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/Makefile	Thu Sep 15 13:21:35 2011 +0300
@@ -0,0 +1,10 @@
+fonts = fonts/FreeSerif.ttf
+
+.PHONY: all
+all: $(fonts)
+	cd simple; $(MAKE)
+
+fonts/FreeSerif.ttf:
+	wget http://ftp.gnu.org/gnu/freefont/freefont-ttf-20100919.tar.gz
+	tar xzvf freefont-ttf-20100919.tar.gz
+	mv freefont-20100919 fonts
diff -r 34130f58141a -r 8e93efcd23ae examples/simple/Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/simple/Makefile	Thu Sep 15 13:21:35 2011 +0300
@@ -0,0 +1,30 @@
+obj = simple.o
+bin = simple
+
+CC = gcc
+CFLAGS = -pedantic -Wall -g -I../../src
+LDFLAGS = -L. -ldrawtext $(libgl)
+
+lib_so = libdrawtext.so
+font = serif.ttf
+
+ifeq ($(shell uname -s), Darwin)
+	libgl = -framework OpenGL -framework GLUT
+else
+	libgl = -lGL -lGLU -lglut
+endif
+
+$(bin): $(obj) $(lib_so) $(font)
+	$(CC) -o $@ $(obj) $(LDFLAGS)
+
+$(lib_so): ../../libdrawtext.so.0.0
+	rm -f $@
+	ln -s $< $@
+
+$(font): ../fonts/FreeSerif.ttf
+	rm -f $@
+	ln -s $< $@
+
+.PHONY: clean
+clean:
+	rm -f $(obj) $(bin) $(lib_so)
diff -r 34130f58141a -r 8e93efcd23ae examples/simple/simple.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/simple/simple.c	Thu Sep 15 13:21:35 2011 +0300
@@ -0,0 +1,102 @@
+/* Simple libdrawtext example.
+ *
+ * Important parts are marked with XXX comments.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifndef __APPLE__
+#include <GL/glut.h>
+#else
+#include <GLUT/glut.h>
+#endif
+
+#include "drawtext.h"
+
+void disp(void);
+void reshape(int x, int y);
+void keyb(unsigned char key, int x, int y);
+
+/* XXX fonts are represented by the opaque struct dtx_font type, so you
+ * need to create at least one with dtx_open_font (see main).
+ */
+struct dtx_font *font;
+
+int main(int argc, char **argv)
+{
+	glutInit(&argc, argv);
+	glutInitWindowSize(512, 384);
+	glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
+	glutCreateWindow("libdrawtext example: simple");
+
+	glutDisplayFunc(disp);
+	glutReshapeFunc(reshape);
+	glutKeyboardFunc(keyb);
+
+	/* XXX dtx_open_font opens a font file and returns a pointer to dtx_font */
+	if(!(font = dtx_open_font("serif.ttf", 24))) {
+		fprintf(stderr, "failed to open font\n");
+		return 1;
+	}
+	/* XXX select the font and size to render with by calling dtx_use_font
+	 * if you want to use a different font size, you must first call:
+	 * dtx_prepare(font, size) once.
+	 */
+	dtx_use_font(font, 24);
+
+	glutMainLoop();
+	return 0;
+}
+
+const char *text = "Some sample text goes here.\n"
+	"Yada yada yada, more text...\n"
+	"foobar xyzzy\n";
+
+void disp(void)
+{
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+
+	glPushMatrix();
+	glTranslatef(-200, 150, 0);
+	glColor3f(1, 1, 1);
+	/* XXX call dtx_string to draw utf-8 text.
+	 * any transformations and the current color apply
+	 */
+	dtx_string(text);
+	glPopMatrix();
+
+	glPushMatrix();
+	glTranslatef(-200, 50, 0);
+	glScalef(2, 0.7, 1);
+	glColor3f(0.6, 0.7, 1.0);
+	dtx_string(text);
+	glPopMatrix();
+
+	glPushMatrix();
+	glTranslatef(-80, -90, 0);
+	glRotatef(20, 0, 0, 1);
+	glColor3f(1.0, 0.7, 0.6);
+	dtx_string(text);
+	glPopMatrix();
+
+	glutSwapBuffers();
+}
+
+void reshape(int x, int y)
+{
+	glViewport(0, 0, x, y);
+
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+	glOrtho(-x/2, x/2, -y/2, y/2, -1, 1);
+}
+
+void keyb(unsigned char key, int x, int y)
+{
+	if(key == 27) {
+		exit(0);
+	}
+}