st

fork of suckless's simple terminal
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commit 594a25983639847ed063a3d181893dba54825f5a
parent 91c70213d1e595467b14ce6d28f333dbedd97cab
Author: Christoph Lohmann <20h@r-36.net>
Date:   Mon,  5 Oct 2015 22:09:51 +0200

Fixing the cursor movement in selections.

Before the fix the cursor wouldn't obey if it's in a selection. If it is
inside it will now change to the reverse. This patch also adds that the
defaultcs will be reversed for the manually drawn cursors.

Diffstat:
Mst.c | 44+++++++++++++++++++++++++++++++-------------
1 file changed, 31 insertions(+), 13 deletions(-)
diff --git a/st.c b/st.c
@@ -1811,7 +1811,6 @@ tmoveto(int x, int y)
 {
     int miny, maxy;
 
-    selclear(NULL);
     if (term.c.state & CURSOR_ORIGIN) {
         miny = term.top;
         maxy = term.bot;
@@ -3819,6 +3818,7 @@ xdrawglyph(Glyph g, int x, int y)
 {
     int numspecs;
     XftGlyphFontSpec spec;
+
     numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
     xdrawglyphfontspecs(&spec, g, numspecs, x, y);
 }
@@ -3828,8 +3828,10 @@ xdrawcursor(void)
 {
     static int oldx = 0, oldy = 0;
     int curx;
-    Glyph g = {' ', ATTR_NULL, defaultbg, defaultcs};
+    Glyph g = {' ', ATTR_NULL, defaultbg, defaultcs}, og;
     int ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
+    Color drawcol;
+    XRenderColor dccol;
 
     LIMIT(oldx, 0, term.col-1);
     LIMIT(oldy, 0, term.row-1);
@@ -3842,12 +3844,28 @@ xdrawcursor(void)
     if (term.line[term.c.y][curx].mode & ATTR_WDUMMY)
         curx--;
 
+    /* remove the old cursor */
+    og = term.line[oldy][oldx];
+    if (ena_sel && selected(oldx, oldy))
+        og.mode ^= ATTR_REVERSE;
+    xdrawglyph(og, oldx, oldy);
+
     g.u = term.line[term.c.y][term.c.x].u;
-    if (ena_sel && selected(term.c.x, term.c.y))
-        g.mode ^= ATTR_REVERSE;
+    if (ena_sel && selected(term.c.x, term.c.y)) {
+        /*
+         * Allocate the drawing color which is the reverse of
+         * defaultcs, if we are selected.
+         */
+        dccol.red = ~dc.col[defaultcs].color.red;
+        dccol.green = ~dc.col[defaultcs].color.green;
+        dccol.blue = ~dc.col[defaultcs].color.blue;
+        dccol.alpha = ~dc.col[defaultcs].color.alpha;
+        XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &dccol, &drawcol);
 
-    /* remove the old cursor */
-    xdrawglyph(term.line[oldy][oldx], oldx, oldy);
+        g.mode ^= ATTR_REVERSE;
+    } else {
+        drawcol = dc.col[defaultcs];
+    }
 
     if (IS_SET(MODE_HIDE))
         return;
@@ -3869,33 +3887,33 @@ xdrawcursor(void)
             break;
         case 3: /* Blinking Underline */
         case 4: /* Steady Underline */
-            XftDrawRect(xw.draw, &dc.col[defaultcs],
+            XftDrawRect(xw.draw, &drawcol,
                     borderpx + curx * xw.cw,
                     borderpx + (term.c.y + 1) * xw.ch - cursorthickness,
                     xw.cw, cursorthickness);
             break;
         case 5: /* Blinking bar */
         case 6: /* Steady bar */
-            XftDrawRect(xw.draw, &dc.col[defaultcs],
+            XftDrawRect(xw.draw, &drawcol,
                     borderpx + curx * xw.cw,
                     borderpx + term.c.y * xw.ch,
                     cursorthickness, xw.ch);
             break;
         }
     } else {
-        XftDrawRect(xw.draw, &dc.col[defaultcs],
+        XftDrawRect(xw.draw, &drawcol,
                 borderpx + curx * xw.cw,
                 borderpx + term.c.y * xw.ch,
                 xw.cw - 1, 1);
-        XftDrawRect(xw.draw, &dc.col[defaultcs],
+        XftDrawRect(xw.draw, &drawcol,
                 borderpx + curx * xw.cw,
                 borderpx + term.c.y * xw.ch,
                 1, xw.ch - 1);
-        XftDrawRect(xw.draw, &dc.col[defaultcs],
+        XftDrawRect(xw.draw, &drawcol,
                 borderpx + (curx + 1) * xw.cw - 1,
                 borderpx + term.c.y * xw.ch,
                 1, xw.ch - 1);
-        XftDrawRect(xw.draw, &dc.col[defaultcs],
+        XftDrawRect(xw.draw, &drawcol,
                 borderpx + curx * xw.cw,
                 borderpx + (term.c.y + 1) * xw.ch - 1,
                 xw.cw, 1);
@@ -3945,7 +3963,7 @@ drawregion(int x1, int y1, int x2, int y2)
 {
     int i, x, y, ox, numspecs;
     Glyph base, new;
-    XftGlyphFontSpec* specs;
+    XftGlyphFontSpec *specs;
     int ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
 
     if (!(xw.state & WIN_VISIBLE))