gecko/gfx/src/nsSystemFontsQt.cpp

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
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 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is thebes gfx
 *
 * The Initial Developer of the Original Code is mozilla.org.
 * Portions created by the Initial Developer are Copyright (C) 2005
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Vladimir Vukicevic <vladimir@pobox.com>
 *   Stuart Parmenter <pavlov@pavlov.net>
 *
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// Qt headers must be included before anything that might pull in our
// malloc wrappers.
#include <QApplication>
#include <QFont>

#include "nsSystemFontsQt.h"
#include "gfxQtPlatform.h"

nsSystemFontsQt::nsSystemFontsQt()
  : mDefaultFontName(NS_LITERAL_STRING("sans-serif"))
  , mButtonFontName(NS_LITERAL_STRING("sans-serif"))
  , mFieldFontName(NS_LITERAL_STRING("sans-serif"))
  , mMenuFontName(NS_LITERAL_STRING("sans-serif"))
{
   // What about using QFontInfo? is it faster or what?
   GetSystemFontInfo("Qlabel", &mDefaultFontName, &mDefaultFontStyle);

   GetSystemFontInfo("QlineEdit", &mFieldFontName, &mFieldFontStyle);

   GetSystemFontInfo("QAction", &mMenuFontName, &mMenuFontStyle);

   GetSystemFontInfo("QPushButton", &mButtonFontName, &mButtonFontStyle);
}

nsSystemFontsQt::~nsSystemFontsQt()
{
    // No implementation needed
}

nsresult
nsSystemFontsQt::GetSystemFontInfo(const char *aClassName, nsString *aFontName,
                                   gfxFontStyle *aFontStyle) const
{
    QFont qFont = QApplication::font(aClassName);

    aFontStyle->style = FONT_STYLE_NORMAL;
    aFontStyle->systemFont = true;
    NS_NAMED_LITERAL_STRING(quote, "\"");
    nsString family((PRUnichar*)qFont.family().data());
    *aFontName = quote + family + quote;
    aFontStyle->weight = qFont.weight();
    // FIXME: Set aFontStyle->stretch correctly!
    aFontStyle->stretch = NS_FONT_STRETCH_NORMAL;
    // use pixel size directly if it is set, otherwise compute from point size
    if (qFont.pixelSize() != -1) {
        aFontStyle->size = qFont.pixelSize();
    } else {
        aFontStyle->size = qFont.pointSizeF() * 96.0f / 72.0f;
    }
    return NS_OK;
}


nsresult
nsSystemFontsQt::GetSystemFont(nsSystemFontID anID, nsString *aFontName,
                                 gfxFontStyle *aFontStyle) const
{
    switch (anID) {
    case eSystemFont_Menu:         // css2
    case eSystemFont_PullDownMenu: // css3
        *aFontName = mMenuFontName;
        *aFontStyle = mMenuFontStyle;
        break;

    case eSystemFont_Field:        // css3
    case eSystemFont_List:         // css3
        *aFontName = mFieldFontName;
        *aFontStyle = mFieldFontStyle;
        break;

    case eSystemFont_Button:       // css3
        *aFontName = mButtonFontName;
        *aFontStyle = mButtonFontStyle;
        break;

    case eSystemFont_Caption:      // css2
    case eSystemFont_Icon:         // css2
    case eSystemFont_MessageBox:   // css2
    case eSystemFont_SmallCaption: // css2
    case eSystemFont_StatusBar:    // css2
    case eSystemFont_Window:       // css3
    case eSystemFont_Document:     // css3
    case eSystemFont_Workspace:    // css3
    case eSystemFont_Desktop:      // css3
    case eSystemFont_Info:         // css3
    case eSystemFont_Dialog:       // css3
    case eSystemFont_Tooltips:     // moz
    case eSystemFont_Widget:       // moz
        *aFontName = mDefaultFontName;
        *aFontStyle = mDefaultFontStyle;
        break;
    }

    return NS_OK;
}