font.c

超强的嵌入式GUI系统

/*
 * Copyright (c) 2006 - 2007
 *	Alper Akcan <[e-mail]>, All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution 
 * of this file. 
 */

#include "toolkit.h"

void * Java_java_awt_Toolkit_fntInitFont (JNIEnv *env, jclass clazz UNUSED, jstring jSpec, jint style, jint size)
{
	char *spec;
	int italic = 0;
	int weight = 0;
	s_font_t *font;
	
	DEBUGF("Enter");
	
	spec = java2CString(env, jSpec);
	if (style & 1) {
		weight = 1;
	}
	if (style & 2) {
		italic = 1;
	}
	DEBUGF("spec: %s, weight: %d, italic: %d, size: %d", spec, weight, italic, size);
	
	s_font_init(&font, "arial.ttf");
	s_font_set_size(font, size);

	AWT_FREE(spec);

	DEBUGF("Leave");

	return JCL_NewRawDataObject(env, font);
}

KAFFE_FONT_FUNC_DECL (jobject, Java_java_awt_Toolkit_fntInitFontMetrics)
{
	DEBUGF("Enter");
	DEBUGF("Leave");
	return jfont;
}

KAFFE_FONT_FUNC_DECL (jint, Java_java_awt_Toolkit_fntGetHeight)
{
	s_font_t *font = UNVEIL_FONT(jfont);
	DEBUGF("Enter");
	DEBUGF("Leave");
	return font->ascent - font->descent + 1;
}

KAFFE_FONT_FUNC_DECL (jint, Java_java_awt_Toolkit_fntGetDescent)
{
	DEBUGF("Enter");
	DEBUGF("Leave");
	return -(UNVEIL_FONT(jfont)->descent);
}

KAFFE_FONT_FUNC_DECL (jint, Java_java_awt_Toolkit_fntGetMaxDescent)
{
	DEBUGF("Enter");
	DEBUGF("Leave");
	return -(UNVEIL_FONT(jfont)->descent);
}

KAFFE_FONT_FUNC_DECL (jint, Java_java_awt_Toolkit_fntGetLeading)
{
	DEBUGF("Enter");
	DEBUGF("Leave");
	return 0;
}

KAFFE_FONT_FUNC_DECL (jint, Java_java_awt_Toolkit_fntGetAscent)
{
	DEBUGF("Enter");
	DEBUGF("Leave");
	return UNVEIL_FONT(jfont)->ascent;
}

KAFFE_FONT_FUNC_DECL (jint, Java_java_awt_Toolkit_fntGetMaxAscent)
{
	DEBUGF("Enter");
	DEBUGF("Leave");
	return UNVEIL_FONT(jfont)->ascent;
}

KAFFE_FONT_FUNC_DECL (jint, Java_java_awt_Toolkit_fntGetMaxAdvance)
{
	DEBUGF("Enter");
	DEBUGF("Leave");
	return UNVEIL_FONT(jfont)->height;
}

KAFFE_FONT_FUNC_DECL (jint, Java_java_awt_Toolkit_fntGetFixedWidth)
{
	DEBUGF("Enter");
	DEBUGF("Leave");
	return 0;
}

KAFFE_FONT_FUNC_DECL (jint, Java_java_awt_Toolkit_fntIsWideFont)
{
	DEBUGF("Enter");
	DEBUGF("Leave");
	return 0;
}

KAFFE_FONT_FUNC_DECL (jint, Java_java_awt_Toolkit_fntStringWidth, jstring jStr)
{
	char *str;
	s_font_t *font;
	DEBUGF("Enter");
	font = UNVEIL_FONT(jfont);
	str = java2CString(env, jStr);
	s_font_set_str(font, str);
	s_font_get_glyph(font);
	AWT_FREE(str);
	DEBUGF("Leave");
	return font->glyph.img->w;
}

KAFFE_FONT_FUNC_DECL (jobject, Java_java_awt_Toolkit_fntGetWidths)
{
	int n;
	jint *jw;
	char str[3];
	s_font_t *font;
	jboolean isCopy;
	jintArray widths;
	DEBUGF("Enter");
	font = UNVEIL_FONT(jfont);
	widths = (*env)->NewIntArray(env, 256);
	jw = (*env)->GetIntArrayElements(env, widths, &isCopy);
	for (n = 0; n < 256; n++) {
		sprintf(str, "%c", n);
		jw[n] = s_font_get_width(font, str);
		jw[n] = (jw[n] < 0) ? 0 : jw[n];
	}
	(*env)->ReleaseIntArrayElements(env, widths, jw, 0);
	DEBUGF("Leave");
	return widths;
}