# CalLite

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TCalendarLite is a lightweight calendar component, a TCustomControl descendant which consequently is not dependent on any widgetset. It is not a fixed-size component, as are most calendars, but will align and resize as needed. Various properties give access to almost every aspect of its appearance.

## Authors

Howard Page-Clark, Ariel Rodriguez and Werner Pamler

Modified LGPL (with linking exception, like Lazarus LCL)

#### Release version

A zip file with the most recent release version can be found at Lazarus CCR at SourceForge. Unzip the file into any folder.

The current release version is 0.3.1

#### Development version

Use an svn client to download the current trunk version from svn://svn.code.sf.net/p/lazarus-ccr/svn/components/callite/

#### Installation

In Lazarus, go to "Package" > "Open Package File .lpk". Navigate to the folder with the callite sources, and select callight_pkg.lkp. Click "Compile", then "Use" > "Install". This will rebuild the IDE (it may take some time). When the process is finished the IDE will restart, and you'll find TCalendarLite in the component palette Misc.

• Click on any date
• Use the arrow keys on the keyboard
• Click on the arrow keys above the calendar; the single arrow advances by one month, the double arrow advances by one year
• Click on the month name to open a popdown menu with month names, or click on the year number to open a popdown menu with the last and next ten years.

## Multi-selection

If the property MultiSelect is set to true then several days can be selected in the calendar. All selected days are drawn with a highlighted background. Multi-selection is controlled by holding special keys down while selecting a day either by a mouse click or a key press:

• CTRL: If the CTRL key is pressed while selecting another day then this day is added to the selection. This way a non-contiguous array of dates can be selected.
• SHIFT: If the Shift key is held down during day selection then all day between the prevsiously and the currently selected day are added to the selection.
• Double-click: A double click on a workday selects all workdays of the same week. Holding the CTRL or Shift key down extends the selection by the workdays of one or more weeks.
• The selection can be extended into neighboring months if the arrow keys of the keyboard are pressed with the CTRL key held down.
• Selection is cleared if any date is selected without pressed any of these keys, or if the arrows or dropdown menus in the top bar are used.
• If previously selected days are added for a second time then they are unselected.