Merged #198 with bottom-left corner scaler

CHANGELOG.md

@@ -1,5 +1,6 @@
 # Changelog
-- 2016/01/11 (1.21) - Added additional row layouting method to combine both
+- 2017/01/11 (1.22) - Added flag to put scaler into the bottom left corner
+- 2017/01/11 (1.21) - Added additional row layouting method to combine both
                         dynamic and static widgets.
 - 2016/12/31 (1.20) - Extended scrollbar offset from 16-bit to 32-bit
 - 2016/12/31 (1.192)- Fixed closing window bug of minimized windows

demo/overview.c

@@ -9,6 +9,7 @@ overview(struct nk_context *ctx)
     static int resize = nk_true;
     static int movable = nk_true;
     static int no_scrollbar = nk_false;
+    static int scale_left = nk_false;
     static nk_flags window_flags = 0;
     static int minimizable = nk_true;
 
@@ -23,6 +24,7 @@ overview(struct nk_context *ctx)
     if (resize) window_flags |= NK_WINDOW_SCALABLE;
     if (movable) window_flags |= NK_WINDOW_MOVABLE;
     if (no_scrollbar) window_flags |= NK_WINDOW_NO_SCROLLBAR;
+    if (scale_left) window_flags |= NK_WINDOW_SCALE_LEFT;
     if (minimizable) window_flags |= NK_WINDOW_MINIMIZABLE;
 
     if (nk_begin(ctx, "Overview", nk_rect(10, 10, 400, 600), window_flags))
@@ -84,6 +86,7 @@ overview(struct nk_context *ctx)
             nk_checkbox_label(ctx, "Movable", &movable);
             nk_checkbox_label(ctx, "No Scrollbar", &no_scrollbar);
             nk_checkbox_label(ctx, "Minimizable", &minimizable);
+            nk_checkbox_label(ctx, "Scale Left", &scale_left);
             nk_tree_pop(ctx);
         }
 

demo/x11/main.c

@@ -91,8 +91,8 @@ sleep_for(long t)
  * and the corresponding function. */
 /*#include "../style.c"*/
 /*#include "../calculator.c"*/
-#include "../overview.c"
-#include "../node_editor.c"
+/*#include "../overview.c"*/
+/*#include "../node_editor.c"*/
 
 /* ===============================================================
  *
@@ -157,7 +157,8 @@ main(void)
         /* GUI */
         if (nk_begin(ctx, "Demo", nk_rect(50, 50, 200, 200),
             NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
-            NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
+            NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE|
+            NK_WINDOW_SCALE_LEFT))
         {
             enum {EASY, HARD};
             static int op = EASY;
@@ -177,8 +178,8 @@ main(void)
 
         /* -------------- EXAMPLES ---------------- */
         /*calculator(ctx);*/
-        overview(ctx);
-        node_editor(ctx);
+        /*overview(ctx);*/
+        /*node_editor(ctx);*/
         /* ----------------------------------------- */
 
         /* Draw */

nuklear.h

@@ -688,7 +688,8 @@ enum nk_panel_flags {
     NK_WINDOW_NO_SCROLLBAR      = NK_FLAG(5), /* Removes the scrollbar from the window */
     NK_WINDOW_TITLE             = NK_FLAG(6), /* Forces a header at the top at the window showing the title */
     NK_WINDOW_SCROLL_AUTO_HIDE  = NK_FLAG(7), /* Automatically hides the window scrollbar if no user interaction: also requires delta time in `nk_context` to be set each frame */
-    NK_WINDOW_BACKGROUND        = NK_FLAG(8) /* Always keep window in the background */
+    NK_WINDOW_BACKGROUND        = NK_FLAG(8), /* Always keep window in the background */
+    NK_WINDOW_SCALE_LEFT        = NK_FLAG(9), /* Puts window scaler in the left-ottom corner instead right-bottom*/
 };
 
 /* context */
@@ -16824,7 +16825,9 @@ nk_panel_end(struct nk_context *ctx)
         scaler.w = scrollbar_size.x;
         scaler.h = scrollbar_size.y;
         scaler.y = layout->bounds.y + layout->bounds.h;
-        scaler.x = layout->bounds.x + layout->bounds.w + panel_padding.x;
+        if (layout->flags & NK_WINDOW_SCALE_LEFT)
+            scaler.x = layout->bounds.x - panel_padding.x * 0.5f;
+        else scaler.x = layout->bounds.x + layout->bounds.w + panel_padding.x;
         if (layout->flags & NK_WINDOW_NO_SCROLLBAR)
             scaler.x -= scaler.w;
 
@@ -16832,9 +16835,16 @@ nk_panel_end(struct nk_context *ctx)
         {const struct nk_style_item *item = &style->window.scaler;
         if (item->type == NK_STYLE_ITEM_IMAGE)
             nk_draw_image(out, scaler, &item->data.image, nk_white);
-        else nk_fill_triangle(out, scaler.x + scaler.w, scaler.y, scaler.x + scaler.w,
-            scaler.y + scaler.h, scaler.x, scaler.y + scaler.h, item->data.color);
-        }
+        else {
+            if (layout->flags & NK_WINDOW_SCALE_LEFT) {
+                nk_fill_triangle(out, scaler.x, scaler.y, scaler.x,
+                    scaler.y + scaler.h, scaler.x + scaler.w,
+                    scaler.y + scaler.h, item->data.color);
+            } else {
+                nk_fill_triangle(out, scaler.x + scaler.w, scaler.y, scaler.x + scaler.w,
+                    scaler.y + scaler.h, scaler.x, scaler.y + scaler.h, item->data.color);
+            }
+        }}
 
         /* do window scaling */
         if (!(window->flags & NK_WINDOW_ROM)) {
@@ -16844,7 +16854,13 @@ nk_panel_end(struct nk_context *ctx)
                     NK_BUTTON_LEFT, scaler, nk_true);
 
             if (nk_input_is_mouse_down(in, NK_BUTTON_LEFT) && left_mouse_down && left_mouse_click_in_scaler) {
-                window->bounds.w = NK_MAX(window_size.x, window->bounds.w + in->mouse.delta.x);
+                float delta_x = in->mouse.delta.x;
+                if (layout->flags & NK_WINDOW_SCALE_LEFT) {
+                    delta_x =- delta_x;
+                    window->bounds.x += in->mouse.delta.x;
+                }
+                window->bounds.w = NK_MAX(window_size.x, window->bounds.w + delta_x);
+
                 /* dragging in y-direction is only possible if static window */
                 if (!(layout->flags & NK_WINDOW_DYNAMIC))
                     window->bounds.h = NK_MAX(window_size.y, window->bounds.h + in->mouse.delta.y);