CPack/NSIS: Add options for custom welcome/finish titles + display on 3 lines

Fixes: #11275

Help/cpack_gen/nsis.rst

@@ -133,3 +133,19 @@ on Windows Nullsoft Scriptable Install System.
 
  Specify the name of the program to uninstall the version.
  Default is ``Uninstall``.
+
+.. variable:: CPACK_NSIS_WELCOME_TITLE
+
+  The title to display on the top of the page for the welcome page.
+
+.. variable:: CPACK_NSIS_WELCOME_TITLE_3LINES
+
+ Display the title in the welcome page on 3 lines instead of 2.
+
+.. variable:: CPACK_NSIS_FINISH_TITLE
+
+ The title to display on the top of the page for the finish page.
+
+.. variable:: CPACK_NSIS_FINISH_TITLE_3LINES
+
+ Display the title in the finish page on 3 lines instead of 2.

Help/release/dev/cpack-nsis-welcome-finish-page-title.rst

@@ -0,0 +1,10 @@
+cpack-nsis-welcome-finish-page-title
+------------------------------------
+
+* The :cpack_gen:`CPack NSIS Generator` now supports
+  :variable:`CPACK_NSIS_WELCOME_TITLE` and :variable:`CPACK_NSIS_WELCOME_TITLE_3LINES`.
+  These can be used to specify the welcome page title and display it in 3 lines.
+
+* The :cpack_gen:`CPack NSIS Generator` now supports
+  :variable:`CPACK_NSIS_FINISH_TITLE` and :variable:`CPACK_NSIS_FINISH_TITLE_3LINES`.
+  These can be used to specify the finish page title and display it in 3 lines.

Modules/Internal/CPack/NSIS.template.in

@@ -542,6 +542,8 @@ FunctionEnd
 
 ;--------------------------------
 ;Pages
+  @CPACK_NSIS_INSTALLER_WELCOME_TITLE_CODE@
+  @CPACK_NSIS_INSTALLER_WELCOME_TITLE_3LINES_CODE@
   !insertmacro MUI_PAGE_WELCOME
 
   !insertmacro MUI_PAGE_LICENSE "@CPACK_RESOURCE_FILE_LICENSE@"
@@ -557,6 +559,8 @@ FunctionEnd
   @CPACK_NSIS_PAGE_COMPONENTS@
 
   !insertmacro MUI_PAGE_INSTFILES
+  @CPACK_NSIS_INSTALLER_FINISH_TITLE_CODE@
+  @CPACK_NSIS_INSTALLER_FINISH_TITLE_3LINES_CODE@
   !insertmacro MUI_PAGE_FINISH
 
   !insertmacro MUI_UNPAGE_CONFIRM

Source/CPack/cmCPackNSISGenerator.cxx

@@ -129,14 +129,13 @@ int cmCPackNSISGenerator::PackageFiles()
       this->IsSet("CPACK_NSIS_MUI_UNIICON")) {
     std::string installerIconCode;
     if (this->IsSet("CPACK_NSIS_MUI_ICON")) {
-      installerIconCode += "!define MUI_ICON \"";
-      installerIconCode += this->GetOption("CPACK_NSIS_MUI_ICON");
-      installerIconCode += "\"\n";
+      installerIconCode += cmStrCat(
+        "!define MUI_ICON \"", this->GetOption("CPACK_NSIS_MUI_ICON"), "\"\n");
     }
     if (this->IsSet("CPACK_NSIS_MUI_UNIICON")) {
-      installerIconCode += "!define MUI_UNICON \"";
-      installerIconCode += this->GetOption("CPACK_NSIS_MUI_UNIICON");
-      installerIconCode += "\"\n";
+      installerIconCode +=
+        cmStrCat("!define MUI_UNICON \"",
+                 this->GetOption("CPACK_NSIS_MUI_UNIICON"), "\"\n");
     }
     this->SetOptionIfNotSet("CPACK_NSIS_INSTALLER_MUI_ICON_CODE",
                             installerIconCode.c_str());
@@ -174,6 +173,32 @@ int cmCPackNSISGenerator::PackageFiles()
                             installerRunCode.c_str());
   }
 
+  if (this->IsSet("CPACK_NSIS_WELCOME_TITLE")) {
+    std::string welcomeTitleCode =
+      cmStrCat("!define MUI_WELCOMEPAGE_TITLE \"",
+               this->GetOption("CPACK_NSIS_WELCOME_TITLE"), "\"");
+    this->SetOptionIfNotSet("CPACK_NSIS_INSTALLER_WELCOME_TITLE_CODE",
+                            welcomeTitleCode.c_str());
+  }
+
+  if (this->IsSet("CPACK_NSIS_WELCOME_TITLE_3LINES")) {
+    this->SetOptionIfNotSet("CPACK_NSIS_INSTALLER_WELCOME_TITLE_3LINES_CODE",
+                            "!define MUI_WELCOMEPAGE_TITLE_3LINES");
+  }
+
+  if (this->IsSet("CPACK_NSIS_FINISH_TITLE")) {
+    std::string finishTitleCode =
+      cmStrCat("!define MUI_FINISHPAGE_TITLE \"",
+               this->GetOption("CPACK_NSIS_FINISH_TITLE"), "\"");
+    this->SetOptionIfNotSet("CPACK_NSIS_INSTALLER_FINISH_TITLE_CODE",
+                            finishTitleCode.c_str());
+  }
+
+  if (this->IsSet("CPACK_NSIS_FINISH_TITLE_3LINES")) {
+    this->SetOptionIfNotSet("CPACK_NSIS_INSTALLER_FINISH_TITLE_3LINES_CODE",
+                            "!define MUI_FINISHPAGE_TITLE_3LINES");
+  }
+
   // Setup all of the component sections
   if (this->Components.empty()) {
     this->SetOptionIfNotSet("CPACK_NSIS_INSTALLATION_TYPES", "");