emf import: redefine the device scale (Bug 341847)

[inkscape.git] / src / extension / internal / emf-win32-inout.cpp

diff --git a/src/extension/internal/emf-win32-inout.cpp b/src/extension/internal/emf-win32-inout.cpp
index 7d379477b37169fbc0278cdd3cb3562ac4e86e72..d147a0c81c92a1f7aa40ab50dcdfdf5eb70a2e2b 100644 (file)
--- a/src/extension/internal/emf-win32-inout.cpp
+++ b/src/extension/internal/emf-win32-inout.cpp
@@ -80,6 +80,7 @@ namespace Inkscape {
 namespace Extension {
 namespace Internal {
 
+static float device_scale = DEVICESCALE;
 
 EmfWin32::EmfWin32 (void) // The null constructor
 {
@@ -124,18 +125,18 @@ emf_print_document_to_file(SPDocument *doc, gchar const *filename)
     /* Create new arena */
     mod->base = SP_ITEM(doc->getRoot());
     mod->arena = NRArena::create();
-    mod->dkey = sp_item_display_key_new(1);
-    mod->root = sp_item_invoke_show(mod->base, mod->arena, mod->dkey, SP_ITEM_SHOW_DISPLAY);
+    mod->dkey = SPItem::display_key_new(1);
+    mod->root = mod->base->invoke_show(mod->arena, mod->dkey, SP_ITEM_SHOW_DISPLAY);
     /* Print document */
     ret = mod->begin(doc);
     if (ret) {
         g_free(oldoutput);
         throw Inkscape::Extension::Output::save_failed();
     }
-    sp_item_invoke_print(mod->base, &context);
+    mod->base->invoke_print(&context);
     ret = mod->finish();
     /* Release arena */
-    sp_item_invoke_hide(mod->base, mod->dkey);
+    mod->base->invoke_hide(mod->dkey);
     mod->base = NULL;
     mod->root = NULL;
     nr_object_unref((NRObject *) mod->arena);
@@ -340,7 +341,7 @@ pix_to_x_point(PEMF_CALLBACK_DATA d, double px, double py)
     double ppy = _pix_y_to_point(d, py);
 
     double x = ppx * d->dc[d->level].worldTransform.eM11 + ppy * d->dc[d->level].worldTransform.eM21 + d->dc[d->level].worldTransform.eDx;
-    x *= d->dc[d->level].ScaleOutX ? d->dc[d->level].ScaleOutX : DEVICESCALE;
+    x *= d->dc[d->level].ScaleOutX ? d->dc[d->level].ScaleOutX : device_scale;
     
     return x;
 }
@@ -352,7 +353,7 @@ pix_to_y_point(PEMF_CALLBACK_DATA d, double px, double py)
     double ppy = _pix_y_to_point(d, py);
 
     double y = ppx * d->dc[d->level].worldTransform.eM12 + ppy * d->dc[d->level].worldTransform.eM22 + d->dc[d->level].worldTransform.eDy;
-    y *= d->dc[d->level].ScaleOutY ? d->dc[d->level].ScaleOutY : DEVICESCALE;
+    y *= d->dc[d->level].ScaleOutY ? d->dc[d->level].ScaleOutY : device_scale;
     
     return y;
 }
@@ -364,9 +365,9 @@ pix_to_size_point(PEMF_CALLBACK_DATA d, double px)
     double ppy = 0;
 
     double dx = ppx * d->dc[d->level].worldTransform.eM11 + ppy * d->dc[d->level].worldTransform.eM21;
-    dx *= d->dc[d->level].ScaleOutX ? d->dc[d->level].ScaleOutX : DEVICESCALE;
+    dx *= d->dc[d->level].ScaleOutX ? d->dc[d->level].ScaleOutX : device_scale;
     double dy = ppx * d->dc[d->level].worldTransform.eM12 + ppy * d->dc[d->level].worldTransform.eM22;
-    dy *= d->dc[d->level].ScaleOutY ? d->dc[d->level].ScaleOutY : DEVICESCALE;
+    dy *= d->dc[d->level].ScaleOutY ? d->dc[d->level].ScaleOutY : device_scale;
 
     double tmp = sqrt(dx * dx + dy * dy);
     return tmp;
@@ -785,14 +786,18 @@ myEnhMetaFileProc(HDC /*hDC*/, HANDLETABLE * /*lpHTable*/, ENHMETARECORD const *
             d->xDPI = 2540;
             d->yDPI = 2540;
 
-            d->dc[d->level].PixelsInX = pEmr->rclFrame.right - pEmr->rclFrame.left;
-            d->dc[d->level].PixelsInY = pEmr->rclFrame.bottom - pEmr->rclFrame.top;
+            d->dc[d->level].PixelsInX = pEmr->rclFrame.right;  // - pEmr->rclFrame.left;
+            d->dc[d->level].PixelsInY = pEmr->rclFrame.bottom; // - pEmr->rclFrame.top;
 
             d->MMX = d->dc[d->level].PixelsInX / 100.0;
             d->MMY = d->dc[d->level].PixelsInY / 100.0;
 
             d->dc[d->level].PixelsOutX = d->MMX * PX_PER_MM;
             d->dc[d->level].PixelsOutY = d->MMY * PX_PER_MM;
+
+            // calculate ratio of Inkscape dpi/device dpi
+            if (pEmr->szlMillimeters.cx && pEmr->szlDevice.cx)
+                device_scale = PX_PER_MM*pEmr->szlMillimeters.cx/pEmr->szlDevice.cx;
             
             tmp_outsvg <<
                 "  width=\"" << d->MMX << "mm\"\n" <<
@@ -1071,8 +1076,8 @@ myEnhMetaFileProc(HDC /*hDC*/, HANDLETABLE * /*lpHTable*/, ENHMETARECORD const *
                 d->dc[d->level].ScaleOutY = (double) d->dc[d->level].PixelsOutY / (double) d->dc[d->level].sizeView.cy;
             }
             else {
-                d->dc[d->level].ScaleOutX = DEVICESCALE;
-                d->dc[d->level].ScaleOutY = DEVICESCALE;
+                d->dc[d->level].ScaleOutX = device_scale;
+                d->dc[d->level].ScaleOutY = device_scale;
             }
 
             break;
@@ -1122,8 +1127,8 @@ myEnhMetaFileProc(HDC /*hDC*/, HANDLETABLE * /*lpHTable*/, ENHMETARECORD const *
                 d->dc[d->level].ScaleOutY = (double) d->dc[d->level].PixelsOutY / (double) d->dc[d->level].sizeView.cy;
             }
             else {
-                d->dc[d->level].ScaleOutX = DEVICESCALE;
-                d->dc[d->level].ScaleOutY = DEVICESCALE;
+                d->dc[d->level].ScaleOutX = device_scale;
+                d->dc[d->level].ScaleOutY = device_scale;
             }
 
             break;