On 19/01/2015 00:01 πμ, Kostas Michalopoulos wrote:
Hi all,
I have made the following component: http://i.imgur.com/V7PRW4o.png
It provides an image editing dialog that i want to use in a few of my
programs. However i thought to also use it with Lazarus instead of (or
in addition to ) the "Load image" dialog that appears when you click
on a "TPicture" (or similar) property like the Glyph of a
TSpeedButton, the icon of a program, the image for a menu, etc so one
can create an icon right there instead of using an external program
(the component also has two buttons to load/save images if one wants
to do that).
Does anyone have any pointers towards doing that? I suspect there
aren't any "hooks" for that (the easiest would probably be adding a
button in the Load image dialog, but i think that is an unnecessary
extra click - click on the property, click on the button, draw stuff,
instead of click on the property, draw stuff). Where in the code
should i look at?
I haven't uploaded the component anywhere yet, i want to try and do
that first so that the "design" package is distributed with the normal
component package :-)
Thanks,
Kostas
Open the file <Lazarus instal dir>\Components\ideintf\graphpropedits.pas
and take a look on the TPicturePropertyEditor.edit implementation for a
quick walk through on what is needed for a tpicture property editor.
Then create your own package add the IDEintf package in the requirements
in your unit create a new class derived from TGraphicPropertyEditor do
your think, do not forget to copy and adjust the RegisterPropertyEditor
for the tpicture type from the initialization section of the
graphpropedits to your own units itinitialization section and then
install that package to the IDE.
You should be seeing your property editor in the ide instead of the default.
--
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