Lazarus Custom Drawn Package: what changed
Revision 0 to 1. Removed lines have a minus sign; added lines have a plus sign.
Title: Lazarus Custom Drawn Package
| Old | New | Line | |
|---|---|---|---|
| 1 | + | ## About | |
| 2 | + | ||
| 3 | + | The package customdrawn.lpk is an under construction package containing all kinds of custom drawn components for Lazarus. Read more about it in [[Lazarus Custom Drawn Controls]]. | |
| 4 | + | ||
| 5 | + | ## Advantages | |
| 6 | + | ||
| 7 | + | - Can be fully reliable in look, behavior and size across platforms | |
| 8 | + | - Customizable look (skinnable in a reliable and cross-platform way) | |
| 9 | + | - Ability to mix native and custom drawn controls. This is major difference with with using \[fpGUI\] or the \[fpGUI Interface\]: it can't mix native and ownerdrawn (fpgui) components in one application. | |
| 10 | + | - They can be utilized in LCL interfaces if the native controls are too unreliable or if no native control exists or if the native controls cannot be used in a convinient way (because they are written in Java, for example) | |
| 11 | + | ||
| 12 | + | ## Units | |
| 13 | + | ||
| 14 | + | ### customdrawncontrols.pas | |
| 15 | + | ||
| 16 | + | See [[Lazarus Custom Drawn Controls]] | |
| 17 | + | ||
| 18 | + | ### customdrawnextras.pas | |
| 19 | + | ||
| 20 | + | The control helps implementing an user interface which has buttons with an unusual look, such as is often found in games. The appearance of the button is defined by a set of raster images which are displayed for each state of the button, such as normal, focused, down. | |
| 21 | + | ||
| 22 | + | Location of the code in Lazarus: <http://svn.freepascal.org/cgi-bin/viewvc.cgi/trunk/components/customdrawn/customdrawnextras.pas?view=markup&root=lazarus> | |
| 23 | + | ||
| 24 | + | Usage example: | |
| 25 | + | ||
| 26 | + | ``` pascal | |
| 27 | + | uses customdrawnextras; | |
| 28 | + | ||
| 29 | + | var | |
| 30 | + | ActionButton: TBitmappedButton; | |
| 31 | + | begin | |
| 32 | + | ActionButton := TBitmappedButton.Create(Self); | |
| 33 | + | ActionButton.Options := [bboUseImageForSelection]; | |
| 34 | + | ActionButton.TabStop := True; | |
| 35 | + | ActionButton.OnClick := HandleActionButtonClick; | |
| 36 | + | ActionButton.Tag := i; | |
| 37 | + | ActionButton.Font.Size := 12; | |
| 38 | + | ActionButton.Font.Name := 'Times New Roman'; | |
| 39 | + | ActionButton.Font.Color := clWhite; | |
| 40 | + | ActionButton.Parent := Self; | |
| 41 | + | ActionButton.Visible := True; | |
| 42 | + | ActionButton.Height := GetSkins().GetButton(sbSmall).Height; | |
| 43 | + | ActionButton.Width := GetSkins().GetButton(sbSmall).Width; | |
| 44 | + | ActionButton.Left := lLeft; | |
| 45 | + | ActionButton.Top := lTop; | |
| 46 | + | ActionButton.ImageBtn.Assign(GetSkins().GetButton(sbSmall)); | |
| 47 | + | ActionButton.ImageBtnFocused.Assign(GetSkins().GetButtonFocused(sbSmall)); | |
| 48 | + | ActionButton.ImageBtnDown.Assign(GetSkins().GetButtonDown(sbSmall)); | |
| 49 | + | ActionButton.Caption := FModel.ActionButtons[i].Caption; | |
| 50 | + | ``` | |
| 51 | + | ||
| 52 | + | ## Maintainers | |
| 53 | + | ||
| 54 | + | - Felipe Monteiro de Carvalho | |
| 55 | + | - JiXian Yang | |
| 56 | + | ||
| 57 | + | ## See Also | |
| 58 | + | ||
| 59 | + | - [[Lazarus Components Directory]] | |
| 60 | + | ||
| 61 | + | --- | |
| 62 | + | *From the Free Pascal wiki, page "Lazarus Custom Drawn Package", as it stood on 2020-02-18 after a change by Trev, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).* | |
| 63 | + | Category: Components | |
| 64 | + | Category: Custom Drawn | |
| 65 | + | Category: Packages |