(svn r24806) -Feature [FS#3148]: Ask for confirmation before creating giant screenshots.

2 files changed, 40 insertions, 19 deletions

diff --git a/src/lang/english.txt b/src/lang/english.txt
index 53a489dac..0baa88f1b 100644
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -3826,6 +3826,9 @@ STR_WARNING_HEIGHTMAP_SCALE_MESSAGE                             :{YELLOW}Resizin
 STR_WARNING_FALLBACK_SOUNDSET                                   :{WHITE}Only a fallback sound set was found. If you want sounds, install a sound set via the content download system
 
 # Screenshot related messages
+STR_WARNING_SCREENSHOT_SIZE_CAPTION                             :{WHITE}Huge screenshot
+STR_WARNING_SCREENSHOT_SIZE_MESSAGE                             :{YELLOW}The screenshot will have a resolution of {COMMA} x {COMMA} pixels. Taking the screenshot may take a while. Do you want to continue?
+
 STR_MESSAGE_SCREENSHOT_SUCCESSFULLY                             :{WHITE}Screenshot successfully saved as '{RAW_STRING}'
 STR_ERROR_SCREENSHOT_FAILED                                     :{WHITE}Screenshot failed!
 
diff --git a/src/toolbar_gui.cpp b/src/toolbar_gui.cpp
index 0f71ade24..9b5879c85 100644
--- a/src/toolbar_gui.cpp
+++ b/src/toolbar_gui.cpp
@@ -53,6 +53,8 @@
 RailType _last_built_railtype;
 RoadType _last_built_roadtype;
 
+static ScreenshotType _confirmed_screenshot_type; ///< Screenshot type the current query is about to confirm.
+
 /** Toobar modes */
 enum ToolbarMode {
 	TB_NORMAL,
@@ -958,19 +960,35 @@ static void MenuClickSmallScreenshot()
 	MakeScreenshot(SC_VIEWPORT, NULL);
 }
 
-static void MenuClickZoomedInScreenshot()
-{
-	MakeScreenshot(SC_ZOOMEDIN, NULL);
-}
-
-static void MenuClickDefaultZoomScreenshot()
+/**
+ * Callback on the confirmation window for huge screenshots.
+ * @param w Window with viewport
+ * @param confirmed true on confirmation
+ */
+static void ScreenshotConfirmCallback(Window *w, bool confirmed)
 {
-	MakeScreenshot(SC_DEFAULTZOOM, NULL);
+	if (confirmed) MakeScreenshot(_confirmed_screenshot_type, NULL);
 }
 
-static void MenuClickWorldScreenshot()
-{
-	MakeScreenshot(SC_WORLD, NULL);
+/**
+ * Make a screenshot of the world.
+ * Ask for confirmation if the screenshot will be huge.
+ * @param t Screenshot type: World or viewport screenshot
+ */
+static void MenuClickLargeWorldScreenshot(ScreenshotType t)
+{
+	ViewPort vp;
+	SetupScreenshotViewport(t, &vp);
+	if (vp.width * vp.height > 8192 * 8192) {
+		/* Ask for confirmation */
+		SetDParam(0, vp.width);
+		SetDParam(1, vp.height);
+		_confirmed_screenshot_type = t;
+		ShowQuery(STR_WARNING_SCREENSHOT_SIZE_CAPTION, STR_WARNING_SCREENSHOT_SIZE_MESSAGE, NULL, ScreenshotConfirmCallback);
+	} else {
+		/* Less than 4M pixels, just do it */
+		MakeScreenshot(t, NULL);
+	}
 }
 
 /**
@@ -1019,9 +1037,9 @@ static CallBackFunction MenuClickHelp(int index)
 		case  2: IConsoleSwitch();                 break;
 		case  3: ShowAIDebugWindow();              break;
 		case  4: MenuClickSmallScreenshot();       break;
-		case  5: MenuClickZoomedInScreenshot();    break;
-		case  6: MenuClickDefaultZoomScreenshot(); break;
-		case  7: MenuClickWorldScreenshot();       break;
+		case  5: MenuClickLargeWorldScreenshot(SC_ZOOMEDIN);    break;
+		case  6: MenuClickLargeWorldScreenshot(SC_DEFAULTZOOM); break;
+		case  7: MenuClickLargeWorldScreenshot(SC_WORLD);       break;
 		case  8: ShowAboutWindow();                break;
 		case  9: ShowSpriteAlignerWindow();        break;
 		case 10: ToggleBoundingBoxes();            break;
@@ -1599,9 +1617,9 @@ struct MainToolbarWindow : Window {
 			case MTHK_MUSIC: ShowMusicWindow(); break;
 			case MTHK_AI_DEBUG: ShowAIDebugWindow(); break;
 			case MTHK_SMALL_SCREENSHOT: MenuClickSmallScreenshot(); break;
-			case MTHK_ZOOMEDIN_SCREENSHOT: MenuClickZoomedInScreenshot(); break;
-			case MTHK_DEFAULTZOOM_SCREENSHOT: MenuClickDefaultZoomScreenshot(); break;
-			case MTHK_GIANT_SCREENSHOT: MenuClickWorldScreenshot(); break;
+			case MTHK_ZOOMEDIN_SCREENSHOT: MenuClickLargeWorldScreenshot(SC_ZOOMEDIN); break;
+			case MTHK_DEFAULTZOOM_SCREENSHOT: MenuClickLargeWorldScreenshot(SC_DEFAULTZOOM); break;
+			case MTHK_GIANT_SCREENSHOT: MenuClickLargeWorldScreenshot(SC_WORLD); break;
 			case MTHK_CHEATS: if (!_networking) ShowCheatWindow(); break;
 			case MTHK_TERRAFORM: ShowTerraformToolbar(); break;
 			case MTHK_EXTRA_VIEWPORT: ShowExtraViewPortWindowForTileUnderCursor(); break;
@@ -1924,9 +1942,9 @@ struct ScenarioEditorToolbarWindow : Window {
 			case MTEHK_MUSIC:                  ShowMusicWindow(); break;
 			case MTEHK_LANDINFO:               cbf = PlaceLandBlockInfo(); break;
 			case MTEHK_SMALL_SCREENSHOT:       MenuClickSmallScreenshot(); break;
-			case MTEHK_ZOOMEDIN_SCREENSHOT:    MenuClickZoomedInScreenshot(); break;
-			case MTEHK_DEFAULTZOOM_SCREENSHOT: MenuClickDefaultZoomScreenshot(); break;
-			case MTEHK_GIANT_SCREENSHOT:       MenuClickWorldScreenshot(); break;
+			case MTEHK_ZOOMEDIN_SCREENSHOT:    MenuClickLargeWorldScreenshot(SC_ZOOMEDIN); break;
+			case MTEHK_DEFAULTZOOM_SCREENSHOT: MenuClickLargeWorldScreenshot(SC_DEFAULTZOOM); break;
+			case MTEHK_GIANT_SCREENSHOT:       MenuClickLargeWorldScreenshot(SC_WORLD); break;
 			case MTEHK_ZOOM_IN:                ToolbarZoomInClick(this); break;
 			case MTEHK_ZOOM_OUT:               ToolbarZoomOutClick(this); break;
 			case MTEHK_TERRAFORM:              ShowEditorTerraformToolbar(); break;