[gtk+] GDK/Win32: Fix build after GDK Root Window and DND changes

[Chun-wei Fan <fanchunwei src gnome org>]

commit e076cc7b1f609ad278c3759563d63781f42e4dc2
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Nov 17 15:27:10 2017 +0800

    GDK/Win32: Fix build after GDK Root Window and DND changes
    
    Ensure that things build again, and instead use the Windows API to
    acquire the screen dimensions (note: this may need to be scaled for
    HiDPI, but since I do not own a WinTab-based device, I will need to
    keep the dimensions as-is for now).
    
    Also update the gdkdnd-win32.c code to use formats rather than targets.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=773299

 gdk/win32/gdkdevice-win32.c        |    4 ++--
 gdk/win32/gdkdevice-wintab.c       |   30 ++++++++++++++++++++----------
 gdk/win32/gdkdevicemanager-win32.c |    2 +-
 gdk/win32/gdkdisplay-win32.h       |    1 -
 gdk/win32/gdkdnd-win32.c           |   33 +++++++++++++++++++--------------
 gdk/win32/gdkprivate-win32.h       |    6 +++++-
 gdk/win32/gdkselection-win32.c     |    6 +++---
 7 files changed, 50 insertions(+), 32 deletions(-)
---
diff --git a/gdk/win32/gdkdevice-win32.c b/gdk/win32/gdkdevice-win32.c
index b2ad705..110d73d 100644
--- a/gdk/win32/gdkdevice-win32.c
+++ b/gdk/win32/gdkdevice-win32.c
@@ -22,9 +22,9 @@
 #include <windowsx.h>
 #include <objbase.h>
 
-#include "gdkdisplayprivate.h"
 #include "gdkdevice-win32.h"
 #include "gdkwin32.h"
+#include "gdkdisplay-win32.h"
 
 G_DEFINE_TYPE (GdkDeviceWin32, gdk_device_win32, GDK_TYPE_DEVICE)
 
@@ -119,7 +119,7 @@ gdk_device_win32_query_state (GdkDevice        *device,
     {
       GdkDisplay *display = gdk_device_get_display (device);
 
-      scale = GDK_WIN32_SCREEN (GDK_WIN32_DISPLAY (display)->screen)->window_scale;
+      scale = GDK_WIN32_DISPLAY (display)->window_scale;
       hwnd = NULL;
     }
 
diff --git a/gdk/win32/gdkdevice-wintab.c b/gdk/win32/gdkdevice-wintab.c
index 8b5d321..0de1ecb 100644
--- a/gdk/win32/gdkdevice-wintab.c
+++ b/gdk/win32/gdkdevice-wintab.c
@@ -24,7 +24,7 @@
 
 #include "gdkwin32.h"
 #include "gdkdevice-wintab.h"
-#include "gdkdisplayprivate.h"
+#include "gdkdisplay-win32.h"
 
 G_DEFINE_TYPE (GdkDeviceWintab, gdk_device_wintab, GDK_TYPE_DEVICE)
 
@@ -132,7 +132,7 @@ gdk_device_wintab_query_state (GdkDevice        *device,
     {
       GdkDisplay *display = gdk_device_get_display (device);
 
-      scale = GDK_WIN32_SCREEN (GDK_WIN32_DISPLAY (display)->screen)->window_scale;
+      scale = GDK_WIN32_DISPLAY (display)->window_scale;
       hwnd = NULL;
     }
 
@@ -144,7 +144,7 @@ gdk_device_wintab_query_state (GdkDevice        *device,
   if (root_y)
     *root_y = point.y / scale;
 
-  if (hwn)
+  if (hwnd)
     ScreenToClient (hwnd, &point);
 
   if (win_x)
@@ -256,13 +256,23 @@ _gdk_device_wintab_translate_axes (GdkDeviceWintab *device_wintab,
                                                 device_wintab->last_axis_data[i],
                                                 &axes[i]);
           else
-            _gdk_device_translate_screen_coord (device, window,
-                                                root_x, root_y,
-                                                GDK_WIN32_SCREEN (GDK_WIN32_DISPLAY 
(display)->screen)->width,
-                                                GDK_WIN32_SCREEN (GDK_WIN32_DISPLAY 
(display)->screen)->height,
-                                                i,
-                                                device_wintab->last_axis_data[i],
-                                                &axes[i]);
+            {
+              HMONITOR hmonitor;
+              MONITORINFO minfo = {sizeof (MONITORINFO),};
+
+              hmonitor = MonitorFromWindow (GDK_WINDOW_HWND (window),
+                                            MONITOR_DEFAULTTONEAREST);
+              GetMonitorInfo (hmonitor, &minfo);
+
+              /* XXX: the dimensions from minfo may need to be scaled for HiDPI usage */
+              _gdk_device_translate_screen_coord (device, window,
+                                                  root_x, root_y,
+                                                  minfo.rcWork.right - minfo.rcWork.left,
+                                                  minfo.rcWork.bottom - minfo.rcWork.top,
+                                                  i,
+                                                  device_wintab->last_axis_data[i],
+                                                  &axes[i]);
+            }
           if (use == GDK_AXIS_X)
             temp_x = axes[i];
           else if (use == GDK_AXIS_Y)
diff --git a/gdk/win32/gdkdevicemanager-win32.c b/gdk/win32/gdkdevicemanager-win32.c
index eef0453..3bff210 100644
--- a/gdk/win32/gdkdevicemanager-win32.c
+++ b/gdk/win32/gdkdevicemanager-win32.c
@@ -434,7 +434,7 @@ wintab_init_check (GdkDeviceManagerWin32 *device_manager)
                            ndevices, ncursors));
 #endif
   /* Create a dummy window to receive wintab events */
-  wintab_window = gdk_window_new_popup (display, GDK_ALL_EVENTS_MASK, &(GdkRectangle) { -100, -100, 2, 2 });
+  wintab_window = gdk_window_new_popup (display, &(GdkRectangle) { -100, -100, 2, 2 });
   g_object_ref (wintab_window);
 
   for (devix = 0; devix < ndevices; devix++)
diff --git a/gdk/win32/gdkdisplay-win32.h b/gdk/win32/gdkdisplay-win32.h
index fa1eb19..05239c6 100644
--- a/gdk/win32/gdkdisplay-win32.h
+++ b/gdk/win32/gdkdisplay-win32.h
@@ -18,7 +18,6 @@
  */
 
 #include "gdkdisplayprivate.h"
-#include "gdkscreen-win32.h"
 
 #ifndef __GDK_DISPLAY__WIN32_H__
 #define __GDK_DISPLAY__WIN32_H__
diff --git a/gdk/win32/gdkdnd-win32.c b/gdk/win32/gdkdnd-win32.c
index 5d20b88..a7eb521 100644
--- a/gdk/win32/gdkdnd-win32.c
+++ b/gdk/win32/gdkdnd-win32.c
@@ -46,7 +46,7 @@
  * data types, and file list dnd (which is handled seperately as it predates OLE2
  * both in this implementation and on Windows in general).
  *
- * As such, the data type conversion from gdk selection targets to OLE2 CF_* data
+ * As such, the data type conversion from gdk selection formats to OLE2 CF_* data
  * type specifiers is partially hardwired. Fixing this is complicated by (a) the
  * fact that the widget’s declared selection types aren’t accessible in calls here
  * that need to declare the corresponding OLE2 data types, and (b) there isn’t a
@@ -1190,8 +1190,8 @@ target_context_new (GdkWindow *window)
 }
 
 static source_drag_context *
-source_context_new (GdkWindow *window,
-                   GList     *targets)
+source_context_new (GdkWindow         *window,
+                    GdkContentFormats *formats)
 {
   GdkDragContext *context;
   GdkWin32DragContext *context_win32;
@@ -1211,7 +1211,7 @@ source_context_new (GdkWindow *window,
   g_object_ref (window);
 
   result->context->dest_window = NULL;
-  result->context->targets = g_list_copy (targets);
+  result->context->formats = gdk_content_formats_ref (formats);
 
   context_win32->ole2_dnd_iface = (IUnknown *) &result->ids;
   idropsource_addref (&result->ids);
@@ -1417,6 +1417,9 @@ gdk_dropfiles_filter (GdkXEvent *xev,
   POINT pt;
   gint nfiles, i;
   gchar *fileName, *linkedFile;
+  GPtrArray *formats;
+
+  formats = g_ptr_array_new ();
 
   if (msg->message == WM_DROPFILES)
     {
@@ -1432,8 +1435,10 @@ gdk_dropfiles_filter (GdkXEvent *xev,
       g_object_ref (context->dest_window);
 
       /* WM_DROPFILES drops are always file names */
-      context->targets =
-       g_list_append (NULL, _text_uri_list);
+      g_ptr_array_add (formats, _text_uri_list);
+      context->formats = gdk_content_formats_new ((const char **) formats->pdata, formats->len);
+      g_ptr_array_unref (formats);
+
       context->actions = GDK_ACTION_COPY;
       context->suggested_action = GDK_ACTION_COPY;
       current_dest_drag = context;
@@ -1664,7 +1669,7 @@ local_send_enter (GdkDragContext *context,
   new_context->dest_window = context->dest_window;
   g_object_ref (new_context->dest_window);
 
-  new_context->targets = g_list_copy (context->targets);
+  new_context->formats = gdk_content_formats_ref (context->formats);
 
   gdk_window_set_events (new_context->source_window,
                         gdk_window_get_events (new_context->source_window) |
@@ -1789,11 +1794,11 @@ gdk_drag_do_leave (GdkDragContext *context,
 }
 
 GdkDragContext *
-_gdk_win32_window_drag_begin (GdkWindow *window,
-                             GdkDevice *device,
-                             GList     *targets,
-                              gint       x_root,
-                              gint       y_root)
+_gdk_win32_window_drag_begin (GdkWindow         *window,
+                              GdkDevice         *device,
+                              GdkContentFormats *formats,
+                              gint               x_root,
+                              gint               y_root)
 {
   if (!use_ole2_dnd)
     {
@@ -1807,7 +1812,7 @@ _gdk_win32_window_drag_begin (GdkWindow *window,
       new_context->source_window = window;
       g_object_ref (window);
 
-      new_context->targets = g_list_copy (targets);
+      new_context->formats = gdk_content_formats_ref (formats);
       new_context->actions = 0;
 
       return new_context;
@@ -1820,7 +1825,7 @@ _gdk_win32_window_drag_begin (GdkWindow *window,
 
       GDK_NOTE (DND, g_print ("gdk_drag_begin\n"));
 
-      ctx = source_context_new (window, targets);
+      ctx = source_context_new (window, formats);
 
       _dnd_source_state = GDK_WIN32_DND_PENDING;
 
diff --git a/gdk/win32/gdkprivate-win32.h b/gdk/win32/gdkprivate-win32.h
index b40c5b4..25c44f0 100644
--- a/gdk/win32/gdkprivate-win32.h
+++ b/gdk/win32/gdkprivate-win32.h
@@ -475,7 +475,11 @@ void       _gdk_win32_display_create_window_impl   (GdkDisplay    *display,
 
 /* stray GdkWindowImplWin32 members */
 void _gdk_win32_window_register_dnd (GdkWindow *window);
-GdkDragContext *_gdk_win32_window_drag_begin (GdkWindow *window, GdkDevice *device, GList *targets, gint 
x_root, gint y_root);
+GdkDragContext *_gdk_win32_window_drag_begin (GdkWindow         *window,
+                                              GdkDevice         *device,
+                                              GdkContentFormats *formats,
+                                              gint               x_root,
+                                              gint               y_root);
 
 gint _gdk_win32_window_get_property (GdkWindow   *window,
                                     GdkAtom      property,
diff --git a/gdk/win32/gdkselection-win32.c b/gdk/win32/gdkselection-win32.c
index 9f70386..336a88f 100644
--- a/gdk/win32/gdkselection-win32.c
+++ b/gdk/win32/gdkselection-win32.c
@@ -1166,13 +1166,13 @@ gdk_win32_display_add_selection_targets (GdkDisplay *display,
               sel_name);
       g_free (sel_name);
 
-      for (i = 0; i < n_targets; i++)
+      for (i = 0; i < ntargets; i++)
        {
          gchar *tgt_name = gdk_atom_name (targets[i]);
 
          g_print ("%s", tgt_name);
          g_free (tgt_name);
-         if (i < n_targets - 1)
+         if (i < ntargets - 1)
            g_print (", ");
        }
       g_print ("\n");
@@ -1199,7 +1199,7 @@ gdk_win32_display_add_selection_targets (GdkDisplay *display,
    * support for it in Windows software, but note that alpha won't be
    * handled.
    */
-  for (i = 0; !has_image && i < n_targets; ++i)
+  for (i = 0; !has_image && i < ntargets; ++i)
     {
       UINT cf;
       gchar *target_name;