add upstream 10.16

3 files changed, 28 insertions, 21 deletions

diff --git a/wx+/dc.h b/wx+/dc.h
index bcf62a14..894fb473 100644
--- a/wx+/dc.h
+++ b/wx+/dc.h
@@ -12,24 +12,25 @@
 #include <zen/basic_math.h>
 #include <wx/dcbuffer.h> //for macro: wxALWAYS_NATIVE_DOUBLE_BUFFER
 #include <wx/dcscreen.h>
+    #include <gtk/gtk.h>
 
 
 namespace zen
 {
 /*
-	1. wxDCClipper does *not* stack: another fix for yet another poor wxWidgets implementation
+    1. wxDCClipper does *not* stack: another fix for yet another poor wxWidgets implementation
 
-		class RecursiveDcClipper
-		{
-			RecursiveDcClipper(wxDC& dc, const wxRect& r)
-		};
+        class RecursiveDcClipper
+        {
+            RecursiveDcClipper(wxDC& dc, const wxRect& r)
+        };
 
-	2. wxAutoBufferedPaintDC skips one pixel on left side when RTL layout is active: a fix for a poor wxWidgets implementation
+    2. wxAutoBufferedPaintDC skips one pixel on left side when RTL layout is active: a fix for a poor wxWidgets implementation
 
-		class BufferedPaintDC
-		{
-			BufferedPaintDC(wxWindow& wnd, std::unique_ptr<wxBitmap>& buffer)
-		};
+        class BufferedPaintDC
+        {
+            BufferedPaintDC(wxWindow& wnd, std::unique_ptr<wxBitmap>& buffer)
+        };
 */
 
 
@@ -50,10 +51,12 @@ Standard DPI:
 inline
 int fastFromDIP(int d) //like wxWindow::FromDIP (but tied to primary monitor and buffered)
 {
-
 #ifdef wxHAVE_DPI_INDEPENDENT_PIXELS //pulled from wx/window.h: https://github.com/wxWidgets/wxWidgets/blob/master/include/wx/window.h#L2029
     return d; //e.g. macOS, GTK3
 #else //https://github.com/wxWidgets/wxWidgets/blob/master/src/common/wincmn.cpp#L2865
+    static_assert(GTK_MAJOR_VERSION == 2);
+    //GTK2 doesn't properly support high DPI: https://freefilesync.org/forum/viewtopic.php?t=6114
+	//=> requires general fix at wxWidgets-level
     assert(wxTheApp); //only call after wxWidgets was initalized!
     static const int dpiY = wxScreenDC().GetPPI().y; //perf: buffering for calls to ::GetDeviceCaps() needed!?
     const int defaultDpi = 96;
diff --git a/wx+/graph.cpp b/wx+/graph.cpp
index 2440f77d..aac2cc10 100644
--- a/wx+/graph.cpp
+++ b/wx+/graph.cpp
@@ -151,7 +151,7 @@ void drawXLabel(wxDC& dc, double xMin, double xMax, int blockCount, const Conver
         return;
 
     wxDCPenChanger dummy(dc, wxColor(192, 192, 192)); //light grey => not accessible! but no big deal...
-    wxDCTextColourChanger dummy2(dc, wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT)); //use user setting for labels
+    wxDCTextColourChanger dummy2(dc, wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
 
     const double valRangePerBlock = (xMax - xMin) / blockCount;
 
@@ -179,7 +179,7 @@ void drawYLabel(wxDC& dc, double yMin, double yMax, int blockCount, const Conver
         return;
 
     wxDCPenChanger dummy(dc, wxColor(192, 192, 192)); //light grey => not accessible! but no big deal...
-    wxDCTextColourChanger dummy2(dc, wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT)); //use user setting for labels
+    wxDCTextColourChanger dummy2(dc, wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
 
     const double valRangePerBlock = (yMax - yMin) / blockCount;
 
@@ -200,7 +200,7 @@ void drawYLabel(wxDC& dc, double yMin, double yMax, int blockCount, const Conver
 }
 
 
-void drawCornerText(wxDC& dc, const wxRect& graphArea, const wxString& txt, Graph2D::PosCorner pos, const wxColor& backgroundColor)
+void drawCornerText(wxDC& dc, const wxRect& graphArea, const wxString& txt, Graph2D::PosCorner pos, const wxColor& colorText, const wxColor& colorBack)
 {
     if (txt.empty()) return;
 
@@ -225,13 +225,13 @@ void drawCornerText(wxDC& dc, const wxRect& graphArea, const wxString& txt, Grap
             drawPos.y += graphArea.height - boxExtent.GetHeight();
             break;
     }
-
     {
         //add text shadow to improve readability:
-        wxDCTextColourChanger dummy(dc, backgroundColor);
+        wxDCTextColourChanger dummy(dc, colorBack);
         dc.DrawText(txt, drawPos + border + wxSize(fastFromDIP(1), fastFromDIP(1)));
     }
-    wxDCTextColourChanger dummy(dc, wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
+
+    wxDCTextColourChanger dummy(dc, colorText);
     dc.DrawText(txt, drawPos + border);
 }
 
@@ -593,7 +593,7 @@ void Graph2D::render(wxDC& dc) const
     {
         //paint graph background (excluding label area)
         wxDCPenChanger   dummy (dc, getBorderColor());
-        wxDCBrushChanger dummy2(dc, attr_.backgroundColor);
+        wxDCBrushChanger dummy2(dc, attr_.colorBack);
         //accessibility: consider system text and background colors; small drawback: color of graphs is NOT connected to the background! => responsibility of client to use correct colors
 
         dc.DrawRectangle(graphArea);
@@ -849,7 +849,7 @@ void Graph2D::render(wxDC& dc) const
 
             //5. draw corner texts
             for (const auto& [cornerPos, text] : attr_.cornerTexts)
-                drawCornerText(dc, graphArea, text, cornerPos, attr_.backgroundColor);
+                drawCornerText(dc, graphArea, text, cornerPos, attr_.colorText, attr_.colorBack);
         }
     }
 }
diff --git a/wx+/graph.h b/wx+/graph.h
index f1ae5d5a..f1f0c76c 100644
--- a/wx+/graph.h
+++ b/wx+/graph.h
@@ -264,7 +264,8 @@ public:
 
         MainAttributes& setCornerText(const wxString& txt, PosCorner pos) { cornerTexts[pos] = txt; return *this; }
 
-        MainAttributes& setBackgroundColor(const wxColor& col) { backgroundColor = col; return *this; }
+        //accessibility: always set both colors
+        MainAttributes& setBaseColors(const wxColor& text, const wxColor& back) { colorText = text; colorBack = back; return *this; }
 
         MainAttributes& setSelectionMode(SelMode mode) { mouseSelMode = mode; return *this; }
 
@@ -287,10 +288,13 @@ public:
 
         std::map<PosCorner, wxString> cornerTexts;
 
-        wxColor backgroundColor = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
+        wxColor colorText = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
+        wxColor colorBack = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
+
         SelMode mouseSelMode = SELECT_RECTANGLE;
     };
 
+
     void setAttributes(const MainAttributes& newAttr) { attr_ = newAttr; Refresh(); }
     MainAttributes getAttributes() const { return attr_; }