1 files changed, 95 insertions, 0 deletions
diff --git a/widgets.c b/widgets.c
new file mode 100644
index 0000000..68193d5
--- /dev/null
+++ b/widgets.c
@@ -0,0 +1,95 @@
+#include "setup.h"
+#include "widgets.h"
+
+#include <vdr/config.h>
+#include <vdr/tools.h>
+
+#include "compat.h"
+
+
+cScroller::cScroller()
+{
+    Reset();
+}
+
+void cScroller::Reset()
+{
+    x = 0;
+    y = 0;
+    xmax = 0;
+    font = NULL;
+    text = "";
+    active = false;
+    update = false;
+    position = 0;
+    increment = 0;
+    lastUpdate = 0;
+}
+
+bool cScroller::NeedsUpdate()
+{
+    if (active &&
+        TimeMs() - lastUpdate > (uint64_t) GraphLCDSetup.ScrollTime)
+    {
+        update = true;
+        return true;
+    }
+    return false;
+}
+
+void cScroller::Init(int X, int Y, int Xmax, const GLCD::cFont * Font, const std::string & Text)
+{
+    x = X;
+    y = Y;
+    xmax = Xmax;
+    font = Font;
+    text = Text;
+    increment = GraphLCDSetup.ScrollSpeed;
+    position = 0;
+    if (GraphLCDSetup.ScrollMode != 0 &&
+        font->Width(text) > xmax - x + 1)
+        active = true;
+    else
+        active = false;
+    update = false;
+    lastUpdate = TimeMs() + 2000;
+}
+
+void cScroller::Draw(GLCD::cBitmap * bitmap)
+{
+    if (!active)
+    {
+        bitmap->DrawText(x, y, xmax, text, font);
+    }
+    else
+    {
+        if (update)
+        {
+            if (increment > 0)
+            {
+                if (font->Width(text) - position + font->TotalWidth() * 5 < increment)
+                {
+                    increment = 0;
+                    position = 0;
+                }
+            }
+            else
+            {
+                if (GraphLCDSetup.ScrollMode == 2)
+                {
+                    increment = GraphLCDSetup.ScrollSpeed;
+                }
+                else
+                {
+                    active = false;
+                }
+            }
+            position += increment;
+            lastUpdate = TimeMs();
+            update = false;
+        }
+        bitmap->DrawText(x, y, xmax, text, font, GLCD::clrBlack, true, position);
+        if (font->Width(text) - position <= xmax - x + 10 + font->TotalWidth() * 5)
+            bitmap->DrawText(x + font->Width(text) - position + font->TotalWidth() * 5, y, xmax, text, font);
+    }
+}