Fix merge carets with mouse

src/text_editor/buffer_multi_cursor.cpp

@@ -1,15 +1,16 @@
-void MergeCarets(Array<Caret> *carets) {
+void MergeCarets(Array<Caret> *_carets, Range *mouse_selection_anchor = NULL) {
     ProfileFunction();
-    Scratch scratch;
+    Array<Caret> &carets = *_carets;
+    Scratch       scratch;
     // Merge carets that overlap, this needs to be handled before any edits to
     // make sure overlapping edits won't happen.
 
     // @optimize @refactor: this is retarded, I hit so many array removal bugs here, without allocation please
     Array<Caret *> deleted_carets = {scratch};
-    ForItem(caret, *carets) {
+    ForItem(caret, carets) {
         if (Contains(deleted_carets, &caret)) goto end_of_caret_loop;
 
-        For(*carets) {
+        For(carets) {
             if (&it == &caret) continue;
             bool a = caret.range.max >= it.range.min && caret.range.max <= it.range.max;
             bool b = caret.range.min >= it.range.min && caret.range.min <= it.range.max;
@@ -17,21 +18,22 @@ void MergeCarets(Array<Caret> *carets) {
                 Add(&deleted_carets, &it);
                 caret.range.max = Max(caret.range.max, it.range.max);
                 caret.range.min = Min(caret.range.min, it.range.min);
+                if (mouse_selection_anchor) *mouse_selection_anchor = caret.range;
                 break;
             }
         }
     end_of_caret_loop:;
     }
 
-    Array<Caret> new_carets = {carets->allocator};
-    For(*carets) {
+    Array<Caret> new_carets = {carets.allocator};
+    For(carets) {
         if (Contains(deleted_carets, &it) == false) {
             Add(&new_carets, it);
         }
     }
-    Assert(new_carets.len <= carets->len);
-    Dealloc(carets);
-    *carets = new_carets;
+    Assert(new_carets.len <= carets.len);
+    Dealloc(&carets);
+    carets = new_carets;
 }
 
 void MergeSort(int64_t Count, Edit *First, Edit *Temp) {

src/text_editor/commands.cpp

@@ -38,6 +38,23 @@ inline bool CtrlAltPress(int key) {
     return result;
 }
 
+bool IsDoubleClick() {
+    static double last_click_time;
+    if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT)) {
+        double time     = GetTime();
+        double diff     = time - last_click_time;
+        last_click_time = time;
+        // @todo: don't do this manually, use windows
+        if (diff >= 0.05 && diff <= 0.25) {
+            last_click_time = 0;
+            return true;
+        }
+    } else if (IsMouseButtonDown(MOUSE_BUTTON_LEFT)) {
+        last_click_time = 0;
+    }
+    return false;
+}
+
 Int MoveOnWhitespaceBoundaryForward(Buffer &buffer, Int pos) {
     pos                         = Clamp(pos, (Int)0, buffer.len);
     bool standing_on_whitespace = IsWhitespace(buffer.str[pos]);

src/text_editor/text_editor.cpp

@@ -26,18 +26,17 @@
 #include "view_draw.cpp"
 
 /*
+- Shify + Alt + Down - make a cursor below
 - Ctrl + Z, Ctrl + C - Undo redo history
 - Ctrl + D - create new cursor at next occurence of word
 - Ctrl + X, Ctrl + C, Ctrl + V - Copy paste
-- Ctrl + Alt + Down - duplicate line down
-- Shify + Alt + Down - make a cursor below
 - Mouse anchor point and double click
 - Scrollbars
 - Line numbers
+- file info bar at bottom (line, column, line endings)
 - Colored strings
 
 - file dock on left side
-- file info bar at bottom
 - multiple windows
 - multiple views per window
 - Font cache
@@ -78,11 +77,11 @@ int main(void) {
         view.char_spacing = GetCharSpacing(font, font_size, font_spacing);
         Add(&view.carets, {0, 0});
         view.buffer = CreateBuffer(Perm);
-        LoadUnicode(view.buffer);
+        // LoadUnicode(view.buffer);
         // LoadBigTextAndBigLine(view.buffer);
         // LoadBigLine(view.buffer);
         // LoadBigText(view.buffer);
-        // LoadTextA(view.buffer);
+        LoadTextA(view.buffer);
         // LoadLine(view.buffer);
     }
 

src/text_editor/view.h

@@ -5,7 +5,8 @@ struct View {
     Int  line_spacing;
     Int  char_spacing;
 
-    bool mouse_selecting;
+    bool  mouse_selecting;
+    Range selection_anchor;
 
     Vec2I        scroll;
     Buffer      *buffer;

src/text_editor/view_commands.cpp

@@ -295,6 +295,14 @@ void HandleKeybindings(View *_view) {
                     view.carets.len = 0;
                 }
                 Add(&view.carets, MakeCaret(p, p));
+                view.selection_anchor = GetLast(view.carets)->range;
+                if (IsDoubleClick()) {
+                    // Cursor *c                     = window.cursors.last();
+                    //         c->range                      = EncloseWord(window.buffer, col->pos);
+                    //         window.selection_anchor_point = c->range;
+                }
+
+                MergeCarets(&view.carets);
             } else if (IsMouseButtonDown(MOUSE_BUTTON_LEFT)) {
                 view.mouse_selecting = true;
             }
@@ -303,8 +311,14 @@ void HandleKeybindings(View *_view) {
         if (view.mouse_selecting) {
             if (!IsMouseButtonDown(MOUSE_BUTTON_LEFT)) view.mouse_selecting = false;
             Caret &caret = *GetLast(view.carets);
-            caret        = ChangeFront(caret, p);
-            MergeCarets(&view.carets);
+            if (view.selection_anchor.min > p) {
+                caret = MakeCaret(p, view.selection_anchor.max);
+            } else if (view.selection_anchor.max < p) {
+                caret = MakeCaret(p, view.selection_anchor.min);
+            } else {
+                caret = MakeCaret(view.selection_anchor.max, view.selection_anchor.min);
+            }
+            MergeCarets(&view.carets, &view.selection_anchor);
         }
     }
 

src/text_editor/view_draw.cpp

@@ -112,14 +112,10 @@ void DrawSelection(const View &view, Caret &it) {
 }
 
 void DrawView(View &view) {
-    // Line highlight
     Buffer &buf = *view.buffer;
     For(view.carets) {
         Int front = GetFront(it);
         XY  fxy   = PosToXY(buf, front);
-        Int back  = GetBack(it);
-        XY  bxy   = PosToXY(buf, back);
-
         if (GetSize(it.range)) {
             DrawSelection(view, it);
         } else {
@@ -130,11 +126,8 @@ void DrawView(View &view) {
     DrawVisibleText(view);
 
     For(view.carets) {
-        Int front = GetFront(it);
-        XY  fxy   = PosToXY(buf, front);
-        Int back  = GetBack(it);
-        XY  bxy   = PosToXY(buf, back);
-
+        Int  front      = GetFront(it);
+        XY   fxy        = PosToXY(buf, front);
         bool main_caret = &it == &view.carets.data[0];
         DrawCaret(view, fxy, 0.3f, main_caret ? ColorMainCaret : ColorSubCaret);
     }