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authorTamas Bunth <tamas.bunth@collabora.co.uk>2020-01-21 19:04:13 +0100
committerTamás Bunth <btomi96@gmail.com>2020-03-03 15:52:47 +0100
commitf9fc420dceb1ece2c98767da16a21aaff771f140 (patch)
tree299b9c856a3567ee85af11b7b314d2d02a03420b /vcl/source/outdev
parent224ab38f747dcafe711c10b54ad53c52bda9e41d (diff)
tdf#101181 Implement glow effect on shapes
Glow effect is a color-blurred outline outside of the shape. In ooxml document it is specified with the <a:glow> element. The commit contains the following: - Add support for importing and exporting <a:glow> from ooxml documents. - Assign new properties to XShape which stores glow-related attributes. - A new 2D primitive is introduced in module 'drawinglayer' which is responsible for representing the glow primitive which is to be rendered. + A glow primitive is a clone of the original shape which has been scaled up slightly and a new color has been assigned to it. The radius of the glow effect and the color is defined in the <a:glow> element being imported. - A blur algorithm is introduced in module 'vcl', which is called during rendering the primitive. + The blur algorithm works on a bitmap. + Since the algorithm is CPU-intensive, the result is cached in the processor and it is recalculated only if needed. - Add support for importing and exporting glow effect to ODF format. For that, new attributes of element <style:graphic-properties> has been added: + loext:glow, which can have the values "visible" or "hidden" + loext:glow-radius: which holds the radius of the glow effect in cm. + loext:glow-color: holds the color of the glow effect - Tests have been added to assert properties after pptx import and export. Change-Id: I836aeb5e0f24e2c8d5725834c8c0f98083bc82e7 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/89125 Tested-by: Jenkins Reviewed-by: Tamás Bunth <btomi96@gmail.com>
Diffstat (limited to 'vcl/source/outdev')
-rw-r--r--vcl/source/outdev/bitmap.cxx4
1 files changed, 4 insertions, 0 deletions
diff --git a/vcl/source/outdev/bitmap.cxx b/vcl/source/outdev/bitmap.cxx
index 0e1f3979e5ba..6e707e953ab1 100644
--- a/vcl/source/outdev/bitmap.cxx
+++ b/vcl/source/outdev/bitmap.cxx
@@ -21,6 +21,7 @@
#include <vcl/bitmap.hxx>
#include <vcl/bitmapex.hxx>
+#include <vcl/BitmapFilterStackBlur.hxx>
#include <vcl/bitmapaccess.hxx>
#include <vcl/canvastools.hxx>
#include <vcl/gdimtf.hxx>
@@ -48,6 +49,9 @@
#include <tools/helpers.hxx>
#include <tools/debug.hxx>
+#include <vcl/dibtools.hxx>
+#include <tools/stream.hxx>
+
void OutputDevice::DrawBitmap( const Point& rDestPt, const Bitmap& rBitmap )
{
assert(!is_double_buffered_window());