Changeset 124 for trunk/src/gui/kernel/qwidget_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/kernel/qwidget_pm.cpp (modified) (1 diff)

trunk/src/gui/kernel/qwidget_pm.cpp

@@ -1920 +1920 @@
 int QWidget::metric(PaintDeviceMetric m) const
 {
-    // @todo implement
-    return 0;
+    Q_D(const QWidget);
+    LONG val;
+    if (m == PdmWidth) {
+        val = data->crect.width();
+    } else if (m == PdmHeight) {
+        val = data->crect.height();
+    } else {
+        HDC hdc = GpiQueryDevice(qt_display_ps());
+        switch (m) {
+            case PdmDpiX:
+            case PdmPhysicalDpiX:
+                if (d->extra && d->extra->customDpiX)
+                    val = d->extra->customDpiX;
+                else if (d->parent)
+                    val = static_cast<QWidget *>(d->parent)->metric(m);
+                else
+                    DevQueryCaps(hdc, CAPS_HORIZONTAL_FONT_RES, 1, &val);
+                break;
+            case PdmDpiY:
+            case PdmPhysicalDpiY:
+                if (d->extra && d->extra->customDpiY)
+                    val = d->extra->customDpiY;
+                else if (d->parent)
+                    val = static_cast<QWidget *>(d->parent)->metric(m);
+                else
+                    DevQueryCaps(hdc, CAPS_VERTICAL_FONT_RES, 1, &val);
+                break;
+            case PdmWidthMM:
+                DevQueryCaps(hdc, CAPS_HORIZONTAL_RESOLUTION, 1, &val);
+                val = data->crect.width() * 1000 / val;
+                break;
+            case PdmHeightMM:
+                DevQueryCaps(hdc, CAPS_VERTICAL_RESOLUTION, 1, &val);
+                val = data->crect.height() * 1000 / val;
+                break;
+            case PdmNumColors:
+                DevQueryCaps(hdc, CAPS_COLORS, 1, &val);
+                break;
+            case PdmDepth:
+                LONG colorInfo[2];
+                DevQueryCaps(hdc, CAPS_COLOR_PLANES, 2, colorInfo);
+                val = colorInfo[0] * colorInfo[1];
+                break;
+            default:
+                val = 0;
+                qWarning("QWidget::metric: Invalid metric command");
+        }
+    }
+    return val;
 }