Add saveToBitmapFile() method

4 files changed, 20 insertions, 1 deletions

diff --git a/src/nigui.nim b/src/nigui.nim
index 55bb1ae..500eb89 100755
--- a/src/nigui.nim
+++ b/src/nigui.nim
@@ -482,6 +482,8 @@ method resize*(image: Image, width, height: int)
 
 method loadFromFile*(image: Image, filePath: string)
 
+method saveToBitmapFile*(image: Image, filePath: string)
+
 method saveToPngFile*(image: Image, filePath: string)
 
 method saveToJpegFile*(image: Image, filePath: string, quality = 80)
diff --git a/src/nigui/private/gtk3/gtk3.nim b/src/nigui/private/gtk3/gtk3.nim
index 32d052f..d4d1c8e 100755
--- a/src/nigui/private/gtk3/gtk3.nim
+++ b/src/nigui/private/gtk3/gtk3.nim
@@ -481,6 +481,7 @@ proc pango_layout_set_font_description*(layout, desc: pointer) {.importc: "pango
 proc pango_font_description_new*(): pointer {.importc: "pango_font_description_new", libgtk3.}
 proc pango_font_description_set_family*(desc: pointer, family: cstring) {.importc: "pango_font_description_set_family", libgtk3.}
 proc pango_font_description_set_size*(desc: pointer, size: cint) {.importc: "pango_font_description_set_size", libgtk3.}
+proc pango_font_description_set_weight*(desc: pointer, size: cint) {.importc: "pango_font_description_set_weight", libgtk3.}
 # proc pango_font_description_get_size*(desc: pointer): cint {.importc: "pango_font_description_get_size", libgtk3.}
 # proc pango_layout_set_markup*(layout: pointer, markup: cstring, length: cint) {.importc: "pango_layout_set_markup", libgtk3.}
 # proc pango_layout_new*(context: pointer): pointer {.importc: "pango_layout_new", libgtk3.}
diff --git a/src/nigui/private/gtk3/platform_impl.nim b/src/nigui/private/gtk3/platform_impl.nim
index a7c2cc0..239ce59 100755
--- a/src/nigui/private/gtk3/platform_impl.nim
+++ b/src/nigui/private/gtk3/platform_impl.nim
@@ -590,6 +590,14 @@ method loadFromFile(image: Image, filePath: string) =
   image.canvas.fWidth = cairo_image_surface_get_width(canvas.fSurface)
   image.canvas.fHeight = cairo_image_surface_get_height(canvas.fSurface)
 
+method saveToBitmapFile(image: Image, filePath: string) =
+  let canvas = cast[CanvasImpl](image.fCanvas)
+  var pixbuf = gdk_pixbuf_get_from_surface(canvas.fSurface, 0, 0, image.width.cint, image.height.cint)
+  defer: g_object_unref(pixbuf)
+  var error: ptr GError
+  if not gdk_pixbuf_save(pixbuf, filePath, "bmp", error.addr, nil, nil, nil):
+    pRaiseGError(error)
+
 method saveToPngFile(image: Image, filePath: string) =
   let canvas = cast[CanvasImpl](image.fCanvas)
   var pixbuf = gdk_pixbuf_get_from_surface(canvas.fSurface, 0, 0, image.width.cint, image.height.cint)
@@ -598,7 +606,6 @@ method saveToPngFile(image: Image, filePath: string) =
   if not gdk_pixbuf_save(pixbuf, filePath, "png", error.addr, nil, nil, nil):
     pRaiseGError(error)
 
-
 method saveToJpegFile(image: Image, filePath: string, quality = 80) =
   let canvas = cast[CanvasImpl](image.fCanvas)
   var pixbuf = gdk_pixbuf_get_from_surface(canvas.fSurface, 0, 0, image.width.cint, image.height.cint)
diff --git a/src/nigui/private/windows/platform_impl.nim b/src/nigui/private/windows/platform_impl.nim
index cfacd77..4b60e1e 100755
--- a/src/nigui/private/windows/platform_impl.nim
+++ b/src/nigui/private/windows/platform_impl.nim
@@ -712,6 +712,15 @@ method loadFromFile(image: Image, filePath: string) =
   image.canvas.fWidth = width
   image.canvas.fHeight = height
 
+method saveToBitmapFile(image: Image, filePath: string) =
+  let canvas = cast[CanvasImpl](image.canvas)
+  var clsidEncoder: GUID
+  clsidEncoder.Data1 = 0x557cf400
+  clsidEncoder.Data2 = 0x11d31a04
+  clsidEncoder.Data3 = 0x0000739a
+  clsidEncoder.Data4 = 0x2ef31ef8
+  pCheckGdiplusStatus(GdipSaveImageToFile(canvas.fBitmap, filePath.pUtf8ToUtf16(), clsidEncoder.addr, nil), false)
+
 method saveToPngFile(image: Image, filePath: string) =
   let canvas = cast[CanvasImpl](image.canvas)
   var clsidEncoder: GUID