DPF

commit ec2862546a3613190e5dadf939efb6e4deff41fe
parent 594a280c3da97afefd0a4a1bb824aa919aa64a0c
Author: falkTX <falktx@falktx.com>
Date:   Sun, 30 Oct 2022 21:26:01 +0000

Ensure non-first top-level-widgets have a valid size on start

Signed-off-by: falkTX <falktx@falktx.com>

Diffstat:
M
dgl/src/TopLevelWidgetPrivateData.cpp
 | 
11
+++++++++++

1 file changed, 11 insertions(+), 0 deletions(-)
diff --git a/dgl/src/TopLevelWidgetPrivateData.cpp b/dgl/src/TopLevelWidgetPrivateData.cpp
@@ -28,6 +28,17 @@ TopLevelWidget::PrivateData::PrivateData(TopLevelWidget* const s, Window& w)
       selfw(s),
       window(w)
 {
+    /* if window already has a top-level-widget, make the new one match the first one in size
+     * this is needed because window creation and resize is a synchronous operation in some systems.
+     * as such, there's a chance the non-1st top-level-widgets would never get a valid size.
+     */
+    if (!window.pData->topLevelWidgets.empty())
+    {
+        TopLevelWidget* const first = window.pData->topLevelWidgets.front();
+
+        selfw->pData->size = first->getSize();
+    }
+
     window.pData->topLevelWidgets.push_back(self);
 }