Am 09.07.2017 um 07:18 schrieb Ondrej Pokorny via Lazarus:
On 09.07.2017 0:22, Werner Pamler via Lazarus wrote:
Ondrej, you implemented scaling of the images used for the toolbar
and menu of the IDE. Where can I find these methods?
IDEImagesIntf.pas
Are they available for standard imagelists for non-IDE usage?
No, the current solution is Lazarus specific. (It doesn't make sense
to have IDEImagesIntf.pas in LCL.) You can use a similar approach for
your applications, though.
Thanks. I have the idea of writing a "TScaledImageList" which needs up
to three imagelists with different resolutions. It will calculate the
required image size from its BaseWidth/BaseHeight and BasePixelsPerInch
settings and the current PixelsPerInch. If the requested image size
matches one of the linked image lists it will copy these images to
itself. If the image size does not match it will create stretchdrawn
images from those with the closest size. The ScaledImageList is the
imagelist linked to form components, such as TListView or TTreeView. I
did not start any coding, yet, but I think it should work and should
greatly facilitate using scaled images at the application level.
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