| 1 | /* Copyright (C) 2000 Free Software Foundation
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| 2 |
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| 3 | This file is part of libgcj.
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| 4 |
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| 5 | This software is copyrighted work licensed under the terms of the
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| 6 | Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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| 7 | details. */
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| 8 |
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| 9 | #include <X11/Xlib.h>
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| 10 |
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| 11 | #include <gcj/cni.h>
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| 12 | #include <gnu/gcj/RawData.h>
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| 13 | #include <java/lang/String.h>
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| 14 |
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| 15 | #include <gnu/gcj/xlib/Display.h>
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| 16 | #include <gnu/gcj/xlib/Font.h>
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| 17 | #include <gnu/gcj/xlib/XException.h>
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| 18 |
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| 19 | gnu::gcj::RawData* gnu::gcj::xlib::Font::loadFont(Display* display,
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| 20 | jstring lfdNamePattern)
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| 21 | {
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| 22 | ::Display* dpy = (::Display*) display->display;
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| 23 | int len = JvGetStringUTFLength(lfdNamePattern);
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| 24 | char cName[len+1];
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| 25 | JvGetStringUTFRegion(lfdNamePattern, 0, lfdNamePattern->length(),
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| 26 | cName);
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| 27 | cName[len] = '\0';
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| 28 |
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| 29 | XFontStruct* fontStruct = XLoadQueryFont(dpy, cName);
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| 30 | if (fontStruct == 0)
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| 31 | {
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| 32 | throw new XException(JvNewStringLatin1("font not found"));
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| 33 | }
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| 34 |
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| 35 | return reinterpret_cast<gnu::gcj::RawData*>(fontStruct);
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| 36 | }
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| 37 |
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| 38 | jint gnu::gcj::xlib::Font::getXIDFromStruct(gnu::gcj::RawData* structure)
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| 39 | {
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| 40 | XFontStruct* fontStruct = (XFontStruct*) structure;
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| 41 | return fontStruct->fid;
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| 42 | }
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| 43 |
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| 44 | jint gnu::gcj::xlib::Font::getMaxAscent()
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| 45 | {
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| 46 | XFontStruct* fontStruct = (XFontStruct*) structure;
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| 47 | return fontStruct->max_bounds.ascent;
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| 48 | }
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| 49 |
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| 50 | jint gnu::gcj::xlib::Font::getMaxDescent()
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| 51 | {
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| 52 | XFontStruct* fontStruct = (XFontStruct*) structure;
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| 53 | return fontStruct->max_bounds.descent;
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| 54 | }
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| 55 |
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| 56 | jint gnu::gcj::xlib::Font::getAscent()
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| 57 | {
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| 58 | XFontStruct* fontStruct = (XFontStruct*) structure;
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| 59 | return fontStruct->ascent;
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| 60 | }
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| 61 |
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| 62 | jint gnu::gcj::xlib::Font::getDescent()
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| 63 | {
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| 64 | XFontStruct* fontStruct = (XFontStruct*) structure;
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| 65 | return fontStruct->ascent;
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| 66 | }
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| 67 |
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| 68 | jint gnu::gcj::xlib::Font::getStringWidth(java::lang::String* text)
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| 69 | {
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| 70 | XFontStruct* fontStruct = (XFontStruct*) structure;
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| 71 |
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| 72 | // FIXME: make proper unicode conversion
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| 73 | int len = JvGetStringUTFLength(text);
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| 74 | char ctxt[len+1];
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| 75 | JvGetStringUTFRegion(text, 0, text->length(), ctxt);
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| 76 | ctxt[len] = '\0';
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| 77 | int width = XTextWidth(fontStruct, ctxt, len);
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| 78 | return width;
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| 79 | }
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| 80 |
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| 81 | void gnu::gcj::xlib::Font::finalize()
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| 82 | {
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| 83 | if (structure != 0)
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| 84 | {
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| 85 | ::Display* dpy = (::Display*) display->display;
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| 86 | XFontStruct* fontStruct = (XFontStruct*) structure;
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| 87 | int result = XFreeFont(dpy, fontStruct);
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| 88 |
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| 89 | if (result == BadFont)
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| 90 | throw new XException(display, result);
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| 91 |
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| 92 | structure = 0; xid = 0;
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| 93 | }
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| 94 | }
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| 95 |
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