Now you can press a mouse button in a IntEntry and drag the mouse to the slider (issue 339)

src/ui/int_entry.cpp

@@ -12,6 +12,7 @@
 
 #include "gfx/rect.h"
 #include "gfx/region.h"
+#include "ui/manager.h"
 #include "ui/message.h"
 #include "ui/popup_window.h"
 #include "ui/slider.h"
@@ -75,6 +76,21 @@ bool IntEntry::onProcessMessage(Message* msg)
       openPopup();
       break;
 
+    case kMouseMoveMessage:
+      if (hasCapture()) {
+        MouseMessage* mouseMsg = static_cast<MouseMessage*>(msg);
+        Widget* pick = getManager()->pick(mouseMsg->position());
+        if (pick == m_slider) {
+          releaseMouse();
+
+          MouseMessage mouseMsg(kMouseDownMessage,
+            mouseMsg->buttons(),
+            mouseMsg->position());
+          m_slider->sendMessage(&mouseMsg);
+        }
+      }
+      break;
+
     case kMouseWheelMessage:
       if (isEnabled()) {
         int oldValue = getValue();

src/ui/manager.cpp

@@ -657,7 +657,8 @@ void Manager::setMouse(Widget* widget)
       else
         it = widget_parents.begin();
 
-      Message* msg = new Message(kMouseEnterMessage);
+      Message* msg = newMouseMessage(kMouseEnterMessage, NULL,
+                                     currentMouseButtons(0));
 
       for (; it != widget_parents.end(); ++it) {
         (*it)->flags |= JI_HASMOUSE;