NPAPI:Pepper: Difference between revisions

NPAPI:Pepper (view source)

Revision as of 03:29, 30 March 2010

1,626 bytes added , 30 March 2010

→‎Printing

DavidS

89

edits

@@ Line 772: / Line 772: @@
 = Printing =
+/* Being a print operation. Returns the total number of pages to print at the
+ * given printableArea size and DPI. printableArea is in points (a point is 1/72
+ * of an inch). The plugin is expected to remember the values of printableArea
+ * and printerDPI for use in subsequent print interface calls. These values
+ * should be cleared in printEnd*/
+typedef NPError (*NPPPrintBeginPtr) (
+    NPP instance,
+    NPRect* printableArea,
+    int32 printerDPI,
+    int32* numPages);
+/* Returns the required raster dimensions for the given page. */
+typedef NPError (*NPPGetRasterDimensionsPtr) (
+    NPP instance,
+    int32 pageNumber,
+    int32* widthInPixels,
+    int32* heightInPixels);
+/* Prints the specified page This allows the plugin to print a raster output. */
+typedef NPError (*NPPPrintPageRasterPtr) (
+    NPP instance,
+    int32 pageNumber,
+    NPDeviceContext2D* printSurface);
+/* Ends the print operation */
+typedef NPError (*NPPPrintEndPtr) (NPP instance);
+/* TODO(sanjeevr) : Provide a vector interface for printing. We need to decide
+ * on a vector format that can support embedded fonts. A vector format will
+ * greatly reduce the size of the required output buffer
+*/
+typedef struct _NPPPrintExtensions {
+  NPPPrintBeginPtr printBegin;
+  NPPGetRasterDimensionsPtr getRasterDimensions;
+  NPPPrintPageRasterPtr printPageRaster;
+  NPPPrintEndPtr printEnd;
+} NPPPrintExtensions;
+/* Returns NULL if the plugin does not support print extensions */
+typedef NPPPrintExtensions* (*NPPGetPrintExtensionsPtr)(NPP instance);
+typedef struct _NPPExtensions {
+  NPPGetPrintExtensionsPtr getPrintExtensions;
+} NPPExtensions;
 = Themes =