Inno Setup-动态定位控件/复选框 [英] Inno Setup - Dynamic positioning of controls/checkboxes
问题描述
我在页面上有一堆复选框，所有这些复选框都有条件可见，并且Top位置是相对于上一个复选框定义的，例如
I have a bunch of checkboxes on a page, and all of those are conditionally visible, and the Top position is defined relative to the previous checkbox, e.g.
CheckBox4.Top := CheckBox3.Top + CheckBox3.Height + 5;
当至少一个组件设置为不可见时，结果如下所示:
When at least one of the components is set to be invisible, the result looks like this:
如果上一个复选框设置为不可见，我希望复选框向上移动. Prog3应该在Prog1的正下方，或者，如果Prog2和Prog3都被隐藏，则Prog4应该在Prog1的正下方.
What I'd like the checkboxes to do, is to shift upwards, if the previous one is set to invisible. Prog3 should be right underneath Prog1, or, if both Prog2 and Prog3 are hidden, Prog4 should be right underneath Prog1.
答案后的我的代码:
var
PageNameLabel,PageDescriptionLabel: TLabel;
TypesComboOnChangePrev: TNotifyEvent;
UninstallConfigssPage: TNewNotebookPage;
UninstallNextButton: TNewButton;
CheckListBox: TNewCheckListBox;
Dirs: TStringList;
procedure UpdateUninstallWizard;
begin
UninstallProgressForm.PageNameLabel.Caption := CustomMessage('UninstPNL');
UninstallProgressForm.PageDescriptionLabel.Caption := CustomMessage('UninstPDL');
UninstallNextButton.Caption := CustomMessage('UninstBtn');
UninstallNextButton.ModalResult := mrOK;
end;
procedure UninstallNextButtonClick(Sender: TObject);
begin
UninstallNextButton.Visible := False;
end;
procedure AddDirCheckbox(Path: string; Caption: string);
begin
if DirExists(Path) then
begin
Dirs.Add(Path);
CheckListBox.AddCheckBox(Caption, '', 0, False, True, False, False, nil);
end;
end;
procedure InitializeUninstallProgressForm();
var
PageText: TNewStaticText;
PageNameLabel,PageDescriptionLabel: string;
CancelButtonEnabled: Boolean;
CancelButtonModalResult: Integer;
begin
if not UninstallSilent then
begin
UninstallProgressForm.Caption := CustomMessage('Uninst');
UninstallConfigssPage:= TNewNotebookPage.Create(UninstallProgressForm);
UninstallConfigssPage.Notebook := UninstallProgressForm.InnerNotebook;
UninstallConfigssPage.Parent := UninstallProgressForm.InnerNotebook;
UninstallConfigssPage.Align := alClient;
PageText := TNewStaticText.Create(UninstallProgressForm);
PageText.Parent := UninstallConfigssPage;
PageText.Top := UninstallProgressForm.StatusLabel.Top;
PageText.Left := UninstallProgressForm.StatusLabel.Left - ScaleX(20);
PageText.Width := UninstallProgressForm.StatusLabel.Width;
PageText.Height := UninstallProgressForm.StatusLabel.Height;
PageText.AutoSize := True;
PageText.ShowAccelChar := False;
PageText.Caption := CustomMessage('UninstTxt');
Dirs := TStringList.Create();
CheckListBox := TNewCheckListBox.Create(UninstallConfigssPage);
CheckListBox.Parent := UninstallConfigssPage;
CheckListBox.SetBounds(PageText.Left,ScaleY(30),PageText.Width,ScaleY(220));
CheckListBox.BorderStyle := bsNone;
CheckListBox.Color := clBtnFace;
CheckListBox.MinItemHeight := ScaleY(20);
AddDirCheckbox(ExpandConstant('{app}\Alien Shooter'), 'Prog1');
AddDirCheckbox(ExpandConstant('{app}\Theseus'), 'Prog2');
AddDirCheckbox(ExpandConstant('{app}\Alien Shooter Revisited'), 'Prog3');
AddDirCheckbox(ExpandConstant('{app}\Alien Shooter 2'), 'Prog4');
AddDirCheckbox(ExpandConstant('{app}\Alien Shooter 2 Reloaded'), 'Prog5');
AddDirCheckbox(ExpandConstant('{app}\Alien Shooter 2 Conscription'), 'Prog6');
AddDirCheckbox(ExpandConstant('{app}\Zombie Shooter'), 'Prog7');
AddDirCheckbox(ExpandConstant('{app}\Zombie Shooter 2'), 'Prog8');
UninstallProgressForm.InnerNotebook.ActivePage := UninstallConfigssPage;
PageNameLabel := UninstallProgressForm.PageNameLabel.Caption;
PageDescriptionLabel := UninstallProgressForm.PageDescriptionLabel.Caption;
UninstallNextButton := TNewButton.Create(UninstallProgressForm);
UninstallNextButton.Parent := UninstallProgressForm;
UninstallNextButton.Left := UninstallProgressForm.CancelButton.Left - UninstallProgressForm.CancelButton.Width - ScaleX(35);
UninstallNextButton.Top := UninstallProgressForm.CancelButton.Top;
UninstallNextButton.Width := UninstallProgressForm.CancelButton.Width + ScaleX(30);
UninstallNextButton.Height := UninstallProgressForm.CancelButton.Height;
UninstallNextButton.OnClick := @UninstallNextButtonClick;
UninstallNextButton.TabOrder := UninstallProgressForm.CancelButton.TabOrder - 1;
UpdateUninstallWizard;
CancelButtonEnabled := UninstallProgressForm.CancelButton.Enabled
UninstallProgressForm.CancelButton.Enabled := True;
CancelButtonModalResult := UninstallProgressForm.CancelButton.ModalResult;
UninstallProgressForm.CancelButton.ModalResult := mrCancel;
if UninstallProgressForm.ShowModal = mrCancel then Abort;
UninstallProgressForm.CancelButton.Enabled := CancelButtonEnabled;
UninstallProgressForm.CancelButton.ModalResult := CancelButtonModalResult;
UninstallProgressForm.PageNameLabel.Caption := PageNameLabel;
UninstallProgressForm.PageDescriptionLabel.Caption := PageDescriptionLabel;
UninstallProgressForm.InnerNotebook.ActivePage := UninstallProgressForm.InstallingPage;
end;
end;
推荐答案
使用 CreateInputOptionPage 创建它.
Use TInputOptionWizardPage, which is designed for this kind of tasks/layouts. Create it using CreateInputOptionPage.
使用 TStringList (或array of string )，以保持创建的复选框与路径之间的关联.
Use TStringList (or array of string) to maintain association between the created checkboxes and the paths.
var
Page: TInputOptionWizardPage;
Dirs: TStringList;
procedure AddDirCheckbox(Path: string; Caption: string);
begin
if DirExists(Path) then
begin
Dirs.Add(Path);
Page.Add(Caption);
end;
end;
procedure InitializeWizard();
begin
Page :=
CreateInputOptionPage(
wpWelcome, 'Configuration files found', 'Choose an action for configuration files',
'Choose the configuration files you''d like to be deleted.', False, False);
Dirs := TStringList.Create();
AddDirCheckbox('C:\dir1', 'Prog 1');
AddDirCheckbox('C:\dir2', 'Prog 2');
AddDirCheckbox('C:\dir3', 'Prog 3');
end;
要处理选定的复选框/路径，请使用如下代码:
To process the selected checkboxes/paths, use a code like this:
procedure CurStepChanged(CurStep: TSetupStep);
var
Index: Integer;
begin
if CurStep = ssInstall then
begin
for Index := 0 to Dirs.Count - 1 do
begin
if Page.Values[Index] then
begin
MsgBox(Format('Deleting %s', [Dirs[Index]]), mbInformation, MB_OK);
end;
end;
end;
end;
假设C:\dir1和C:\dir3存在而C:\dir2不存在，您将得到:
Assuming C:\dir1 and C:\dir3 exist and C:\dir2 does not, you will get:
如果您不能使用TInputOptionWizardPage，例如因为您需要在卸载程序窗体或自定义窗体上的复选框，所以只需创建
If you cannot use TInputOptionWizardPage, e.g. because you need the checkboxes on an uninstaller form or on a custom form, just create the TNewCheckListBox (what TInputOptionWizardPage uses internally).
下面的示例将TNewCheckListBox放置在空白的自定义TWizardPage上，但是您当然可以将其放置在任意位置.
The following example places the TNewCheckListBox on a blank custom TWizardPage, but you can of course place it, wherever you want.
var
Page: TWizardPage;
CheckListBox: TNewCheckListBox;
Dirs: TStringList;
procedure AddDirCheckbox(Path: string; Caption: string);
begin
if DirExists(Path) then
begin
Dirs.Add(Path);
CheckListBox.AddCheckBox(Caption, '', 0, False, True, False, False, nil);
end;
end;
procedure InitializeWizard();
begin
Page :=
CreateCustomPage(
wpWelcome, 'Configuration files found',
'Choose an action for configuration files');
Dirs := TStringList.Create();
CheckListBox := TNewCheckListBox.Create(Page);
CheckListBox.Parent := Page.Surface;
CheckListBox.Width := Page.SurfaceWidth;
CheckListBox.Height := Page.SurfaceHeight;
{ The same styling as used by TInputOptionWizardPage }
CheckListBox.BorderStyle := bsNone;
CheckListBox.Color := clBtnFace;
CheckListBox.WantTabs := True;
CheckListBox.MinItemHeight := ScaleY(22);
AddDirCheckbox('C:\dir1', 'Prog 1');
AddDirCheckbox('C:\dir2', 'Prog 2');
AddDirCheckbox('C:\dir3', 'Prog 3');
end;
procedure CurStepChanged(CurStep: TSetupStep);
var
Index: Integer;
begin
if CurStep = ssInstall then
begin
for Index := 0 to Dirs.Count - 1 do
begin
if CheckListBox.Checked[Index] then
begin
MsgBox(Format('Deleting %s', [Dirs[Index]]), mbInformation, MB_OK);
end;
end;
end;
end;
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