From 26cb01744c08127b9e895c2f9fa9710cfe2faeac Mon Sep 17 00:00:00 2001
From: "Michael D. Lowis" <mike.lowis@gentex.com>
Date: Wed, 16 Nov 2016 09:58:01 -0500
Subject: [PATCH] Fixed scrolling and view sizing issue

---
 config.mk      |  2 +-
 libedit/view.c | 20 +++++++++++++-------
 xedit.c        | 16 +++++++++++-----
 3 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/config.mk b/config.mk
index b9996f6..4dac5a5 100644
--- a/config.mk
+++ b/config.mk
@@ -2,7 +2,7 @@
 
 # Compiler Setup
 CC = c99
-CFLAGS = -O0 $(INCS)
+CFLAGS = -g -O0 $(INCS)
 
 # Linker Setup
 LD = $(CC)
diff --git a/libedit/view.c b/libedit/view.c
index 856f7aa..3b5f8ff 100644
--- a/libedit/view.c
+++ b/libedit/view.c
@@ -98,12 +98,17 @@ static void scroll_up(View* view, unsigned csr, unsigned first) {
 static void scroll_dn(View* view, unsigned csr, unsigned last) {
     while (csr > last) {
         /* delete the first row and shift the others */
-        free(view->rows[0]);
-        memmove(&view->rows[0], &view->rows[1], sizeof(Row*) * (view->nrows-1));
-        view->rows[view->nrows-1] = calloc(1, sizeof(Row) + (view->ncols * sizeof(UGlyph)));
-        view->rows[view->nrows-1]->off = (view->rows[view->nrows-2]->off + view->rows[view->nrows-2]->rlen);
-        /* fill in row content */
-        fill_row(view, view->nrows-1, view->rows[view->nrows-1]->off);
+        if (view->nrows > 1) {
+            free(view->rows[0]);
+            memmove(&view->rows[0], &view->rows[1], sizeof(Row*) * (view->nrows-1));
+            view->rows[view->nrows-1] = calloc(1, sizeof(Row) + (view->ncols * sizeof(UGlyph)));
+            view->rows[view->nrows-1]->off = (view->rows[view->nrows-2]->off + view->rows[view->nrows-2]->rlen);
+            /* fill in row content */
+            fill_row(view, view->nrows-1, view->rows[view->nrows-1]->off);
+        } else {
+            view->rows[0]->off += view->rows[0]->rlen;
+            fill_row(view, 0, view->rows[0]->off);
+        }
         last = view->rows[view->nrows-1]->off + view->rows[view->nrows-1]->rlen - 1;
     }
 }
@@ -171,6 +176,7 @@ void view_resize(View* view, size_t nrows, size_t ncols) {
 void view_update(View* view, size_t* csrx, size_t* csry) {
     size_t csr = view->selection.end;
     /* scroll the view and reflow the screen lines */
+    sync_view(view, view->selection.end);
     reflow(view);
     /* find the cursor on the new screen */
     for (size_t y = 0; y < view->nrows; y++) {
@@ -236,7 +242,7 @@ void view_insert(View* view, Rune rune) {
     }
     view->selection.beg = view->selection.end;
     view->selection.col = buf_getcol(&(view->buffer), view->selection.end);
-    //sync_view(view, view->selection.end);
+    sync_view(view, view->selection.end);
 }
 
 void view_delete(View* view) {
diff --git a/xedit.c b/xedit.c
index ede08da..bac9c00 100644
--- a/xedit.c
+++ b/xedit.c
@@ -92,23 +92,29 @@ static void mouse_left(enum RegionId id, size_t count, size_t row, size_t col) {
     if (count == 1) {
         view_setcursor(getview(id), row, col);
     } else if (count == 2) {
+        puts("select");
         //view_select(getview(id), row, col);
     } else if (count == 3) {
+        puts("select bigword");
         //view_selword(getview(id), row, col);
     }
 }
 
 static void mouse_middle(enum RegionId id, size_t count, size_t row, size_t col) {
-    //if (MouseBtns[MOUSE_BTN_LEFT].pressed)
+    if (MouseBtns[MOUSE_BTN_LEFT].pressed)
+        puts("cut");
     //    cut();
-    //else
+    else
+        puts("exec");
     //    view_exec(getview(id), row, col);
 }
 
 static void mouse_right(enum RegionId id, size_t count, size_t row, size_t col) {
-    //if (MouseBtns[MOUSE_BTN_LEFT].pressed)
+    if (MouseBtns[MOUSE_BTN_LEFT].pressed)
+        puts("paste");
     //    paste();
-    //else
+    else
+        puts("find");
     //    view_find(getview(id), row, col);
 }
 
@@ -300,7 +306,7 @@ static void layout(int width, int height) {
     view_resize(getview(TAGS), tagrows, Regions[TAGS].width / fwidth);
     /* Place the edit region relative to status */
     Regions[EDIT].y      = 5 + Regions[TAGS].y + Regions[TAGS].height;
-    Regions[EDIT].height = fheight * ((height - Regions[EDIT].y - 5) / 4);
+    Regions[EDIT].height = (height - Regions[EDIT].y - 5);
     view_resize(getview(EDIT), Regions[EDIT].height / fheight, Regions[EDIT].width / fwidth);
 }
 
-- 
2.52.0