Option to force break very long lines

Even preformatted lines may need to be wrapped so the content remains visible, since there is no horizontal scrolling. However, this is off by default so ASCII art isn't broken in narrow windows.

2 files changed, 19 insertions, 6 deletions

diff --git a/src/ui/documentwidget.c b/src/ui/documentwidget.c
index 437e9468..2ccdc416 100644
--- a/src/ui/documentwidget.c
+++ b/src/ui/documentwidget.c
@@ -296,6 +296,15 @@ static iRect documentBounds_DocumentWidget_(const iDocumentWidget *d) {
     return rect;
 }
 
+static int forceBreakWidth_DocumentWidget_(const iDocumentWidget *d) {
+    if (isLineWrapForced_App()) {
+        const iRect bounds    = bounds_Widget(constAs_Widget(d));
+        const iRect docBounds = documentBounds_DocumentWidget_(d);
+        return right_Rect(bounds) - left_Rect(docBounds) - gap_UI * d->pageMargin;
+    }
+    return 0;
+}
+
 iLocalDef int documentToWindowY_DocumentWidget_(const iDocumentWidget *d, int docY) {
     return docY - d->scrollY + documentBounds_DocumentWidget_(d).pos.y;
 }
@@ -488,7 +497,8 @@ static void invalidate_DocumentWidget_(iDocumentWidget *d) {
 
 static void setSource_DocumentWidget_(iDocumentWidget *d, const iString *source) {
     setUrl_GmDocument(d->doc, d->mod.url);
-    setSource_GmDocument(d->doc, source, documentWidth_DocumentWidget_(d));
+    setSource_GmDocument(
+        d->doc, source, documentWidth_DocumentWidget_(d), forceBreakWidth_DocumentWidget_(d));
     d->foundMark   = iNullRange;
     d->selectMark  = iNullRange;
     d->hoverLink   = NULL;
@@ -1021,8 +1031,10 @@ static void allocVisBuffer_DocumentWidget_(const iDocumentWidget *d) {
 }
 
 void updateSize_DocumentWidget(iDocumentWidget *d) {
-    setWidth_GmDocument(d->doc, documentWidth_DocumentWidget_(d));
+    setWidth_GmDocument(
+        d->doc, documentWidth_DocumentWidget_(d), forceBreakWidth_DocumentWidget_(d));
     updateVisible_DocumentWidget_(d);
+    invalidate_DocumentWidget_(d);
 }
 
 static iBool handleCommand_DocumentWidget_(iDocumentWidget *d, const char *cmd) {
@@ -1030,9 +1042,9 @@ static iBool handleCommand_DocumentWidget_(iDocumentWidget *d, const char *cmd)
     if (equal_Command(cmd, "window.resized") || equal_Command(cmd, "font.changed")) {
         const iGmRun *mid = middleRun_DocumentWidget_(d);
         const char *midLoc = (mid ? mid->text.start : NULL);
-        setWidth_GmDocument(d->doc, documentWidth_DocumentWidget_(d));
+        setWidth_GmDocument(
+            d->doc, documentWidth_DocumentWidget_(d), forceBreakWidth_DocumentWidget_(d));
         scroll_DocumentWidget_(d, 0);
-        updateVisible_DocumentWidget_(d);
         if (midLoc) {
             mid = findRunAtLoc_GmDocument(d->doc, midLoc);
             if (mid) {
@@ -1055,8 +1067,7 @@ static iBool handleCommand_DocumentWidget_(iDocumentWidget *d, const char *cmd)
             /* Set palette for our document. */
             updateTheme_DocumentWidget_(d);
             updateTrust_DocumentWidget_(d, NULL);
-            setWidth_GmDocument(d->doc, documentWidth_DocumentWidget_(d));
-            updateVisible_DocumentWidget_(d);
+            updateSize_DocumentWidget(d);
         }
         updateWindowTitle_DocumentWidget_(d);
         allocVisBuffer_DocumentWidget_(d);
diff --git a/src/ui/window.c b/src/ui/window.c
index b7b4a8fd..66f1c513 100644
--- a/src/ui/window.c
+++ b/src/ui/window.c
@@ -141,6 +141,8 @@ static const iMenuItem viewMenuItems[] = {
     { "Zoom In", SDLK_EQUALS, KMOD_PRIMARY, "zoom.delta arg:10" },
     { "Zoom Out", SDLK_MINUS, KMOD_PRIMARY, "zoom.delta arg:-10" },
     { "Reset Zoom", SDLK_0, KMOD_PRIMARY, "zoom.set arg:100" },
+    { "---", 0, 0, NULL },
+    { "Wrap Preformatted", 0, 0, "forcewrap.toggle" }
 };
 
 static const iMenuItem helpMenuItems[] = {