diff options
| -rw-r--r-- | src/gui/gui_combobox.pas | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/gui/gui_combobox.pas b/src/gui/gui_combobox.pas index 1588882e..42828afa 100644 --- a/src/gui/gui_combobox.pas +++ b/src/gui/gui_combobox.pas @@ -58,6 +58,8 @@ uses type + { TfpgAbstractComboBox } + TfpgAbstractComboBox = class(TfpgWidget) private FDropDownCount: integer; @@ -84,6 +86,7 @@ type procedure SetText(const AValue: string); virtual; procedure SetHeight(const AValue: TfpgCoord); override; procedure SetWidth(const AValue: TfpgCoord); override; + procedure HandleKeyPress(var keycode: word; var shiftstate: TShiftState; var consumed: boolean); override; procedure HandleLMouseDown(x, y: integer; shiftstate: TShiftState); override; procedure HandleLMouseUp(x, y: integer; shiftstate: TShiftState); override; procedure HandleResize(awidth, aheight: TfpgCoord); override; @@ -363,6 +366,43 @@ begin RePaint; end; +procedure TfpgAbstractComboBox.HandleKeyPress(var keycode: word; var shiftstate: TShiftState; var consumed: boolean); +var + hasChanged: boolean; +begin + inherited HandleKeyPress(keycode, shiftstate, consumed); + hasChanged := False; + consumed := True; + case keycode of + + keyDown: + begin + FocusItem := FocusItem + 1; + hasChanged := True; + end; + + keyUp: + begin + FocusItem := FocusItem - 1; + hasChanged := True; + end; + + else + begin + Consumed := False; + end; + end; + + if consumed then + RePaint + else + inherited; + + if hasChanged then + if Assigned(FOnChange) then + FOnChange(self); +end; + procedure TfpgAbstractComboBox.CalculateInternalButtonRect; begin FInternalBtnRect.SetRect(Width - Min(Height, 20), 2, Min(Height, 20)-2, Height-4); |