Changeset 124 for trunk/src/gui/text/qfontdatabase_pm.cpp

Timestamp:

Aug 21, 2009, 3:34:10 AM (16 years ago)

Author:

Dmitry A. Kuminov

Message:

gui: Implemented QWidge::metric(). Added using of test (box) font engines on OS/2.

File:

• trunk/src/gui/text/qfontdatabase_pm.cpp (modified) (1 diff)

trunk/src/gui/text/qfontdatabase_pm.cpp

@@ -63 +63 @@
 void QFontDatabase::load(const QFontPrivate *d, int script)
 {
-    // @todo implement
+    Q_ASSERT(script >= 0 && script < QUnicodeTables::ScriptCount);
+
+    // normalize the request to get better caching
+    QFontDef req = d->request;
+    if (req.pixelSize <= 0)
+        req.pixelSize = qMax(1, qRound(req.pointSize * d->dpi / 72.));
+    req.pointSize = 0;
+    if (req.weight == 0)
+        req.weight = QFont::Normal;
+    if (req.stretch == 0)
+        req.stretch = 100;
+
+    QFontCache::Key key(req, d->rawMode ? QUnicodeTables::Common : script, d->screen);
+    if (!d->engineData)
+        getEngineData(d, key);
+
+    // the cached engineData could have already loaded the engine we want
+    if (d->engineData->engines[script])
+        return;
+
+    // set it to the actual pointsize, so QFontInfo will do the right thing
+    req.pointSize = req.pixelSize * 72. / d->dpi;
+
+    QFontEngine *fe = QFontCache::instance()->findEngine(key);
+
+    if (!fe) {
+        if (qt_enable_test_font && req.family == QLatin1String("__Qt__Box__Engine__")) {
+            fe = new QTestFontEngine(req.pixelSize);
+            fe->fontDef = req;
+        } else {
+            // @todo initializeDb() and stuff, get the engine
+        }
+        if (!fe) {
+            fe = new QFontEngineBox(req.pixelSize);
+            fe->fontDef = QFontDef();
+        }
+    }
+    if (fe->symbol || (d->request.styleStrategy & QFont::NoFontMerging)) {
+        for (int i = 0; i < QUnicodeTables::ScriptCount; ++i) {
+            if (!d->engineData->engines[i]) {
+                d->engineData->engines[i] = fe;
+                fe->ref.ref();
+            }
+        }
+    } else {
+        d->engineData->engines[script] = fe;
+        fe->ref.ref();
+    }
+    QFontCache::instance()->insertEngine(key, fe);
 }