added support for dynamically sized (and placed) editor palette

When using the value "-1" for columns or rows of the editor palette
(that is, values "editor.palette.cols" and "editor.palette.rows"),
these numbers are dynamically calculated according to the size of the
editor playfield area.

When setting "editor.palette.x" or "editor.palette.y" to "-1", also
the position of the editor palette is dynamically calculated (to be
centered within the playfield area).

(As these values for columns and rows are used at a very early stage
in the level editor to allocate memory for palette buttons, make sure
that no negative numbers are used here for memory calculations.)

diff --git a/src/editor.c b/src/editor.c
index 9396d5eff13053a7a27003c8b14be530745224c0..8338bbb37973bb5fa8cb3456982e1484c53d1455 100644 (file)
--- a/src/editor.c
+++ b/src/editor.c
@@ -65,8 +65,10 @@
 #define ED_ELEMENTLIST_YPOS            (editor.palette.y)
 #define ED_ELEMENTLIST_XSIZE           (graphic_info[IMG_EDITOR_PALETTE_BUTTON].width)
 #define ED_ELEMENTLIST_YSIZE           (graphic_info[IMG_EDITOR_PALETTE_BUTTON].height)
-#define ED_ELEMENTLIST_BUTTONS_HORIZ   (editor.palette.cols)
-#define ED_ELEMENTLIST_BUTTONS_VERT    (editor.palette.rows)
+#define ED_ELEMENTLIST_COLS            MAX(1, editor.palette.cols)
+#define ED_ELEMENTLIST_ROWS            MAX(1, editor.palette.rows)
+#define ED_ELEMENTLIST_BUTTONS_HORIZ   (ED_ELEMENTLIST_COLS)
+#define ED_ELEMENTLIST_BUTTONS_VERT    (ED_ELEMENTLIST_ROWS)
 #define ED_NUM_ELEMENTLIST_BUTTONS     (ED_ELEMENTLIST_BUTTONS_HORIZ * \
                                         ED_ELEMENTLIST_BUTTONS_VERT)
 
@@ -5758,7 +5760,7 @@ static void ReinitializeElementList(void)
       {
        // required for correct padding of palette headline buttons
        if (*editor_elements_info[i].headline_list_size > 0)
-         num_editor_elements += editor.palette.cols;
+         num_editor_elements += ED_ELEMENTLIST_COLS;
 
        for (j = 0; j < *editor_elements_info[i].headline_list_size; j++)
        {
@@ -5775,8 +5777,8 @@ static void ReinitializeElementList(void)
       // required for correct padding of palette element buttons
       int element_list_size = *editor_elements_info[i].element_list_size;
       int element_rows =
-       (element_list_size + editor.palette.cols - 1) / editor.palette.cols;
-      int element_buttons = editor.palette.cols * element_rows;
+       (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
+      int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
 
       num_editor_elements += element_buttons;
     }
@@ -5808,7 +5810,7 @@ static void ReinitializeElementList(void)
       {
        // required for correct padding of palette headline buttons
        int headline_size = (*editor_elements_info[i].headline_list_size > 0 ?
-                            editor.palette.cols : 0);
+                            ED_ELEMENTLIST_COLS : 0);
 
        for (j = 0; j < headline_size; j++)
        {
@@ -5830,8 +5832,8 @@ static void ReinitializeElementList(void)
       // required for correct padding of palette element buttons
       int element_list_size = *editor_elements_info[i].element_list_size;
       int element_rows =
-       (element_list_size + editor.palette.cols - 1) / editor.palette.cols;
-      int element_buttons = editor.palette.cols * element_rows;
+       (element_list_size + ED_ELEMENTLIST_COLS - 1) / ED_ELEMENTLIST_COLS;
+      int element_buttons = ED_ELEMENTLIST_COLS * element_rows;
 
       // copy all elements from element list
       for (j = 0; j < element_list_size; j++)

diff --git a/src/files.c b/src/files.c
index 7af56662cd3f50734d5fd7002a579a3d294c9305..18759ae22f81c1d8cb043fb53595afe31eded7a9 100644 (file)
--- a/src/files.c
+++ b/src/files.c
@@ -9894,6 +9894,40 @@ static void InitMenuDesignSettings_SpecialPostProcessing_AfterGraphics(void)
       *editor_buttons_xy[i].dst = *editor_buttons_xy[i].src;
     }
   }
+
+  // adjust editor palette rows and columns if specified to be dynamic
+
+  if (editor.palette.cols == -1)
+  {
+    int vp_width = viewport.playfield[GFX_SPECIAL_ARG_EDITOR].width;
+    int bt_width = graphic_info[IMG_EDITOR_PALETTE_BUTTON].width;
+    int sc_width = graphic_info[IMG_EDITOR_PALETTE_SCROLLBAR].width;
+
+    editor.palette.cols = (vp_width - sc_width) / bt_width;
+
+    if (editor.palette.x == -1)
+    {
+      int palette_width = editor.palette.cols * bt_width + sc_width;
+
+      editor.palette.x = (vp_width - palette_width) / 2;
+    }
+  }
+
+  if (editor.palette.rows == -1)
+  {
+    int vp_height = viewport.playfield[GFX_SPECIAL_ARG_EDITOR].height;
+    int bt_height = graphic_info[IMG_EDITOR_PALETTE_BUTTON].height;
+    int tx_height = getFontHeight(FONT_TEXT_2);
+
+    editor.palette.rows = (vp_height - tx_height) / bt_height;
+
+    if (editor.palette.y == -1)
+    {
+      int palette_height = editor.palette.rows * bt_height + tx_height;
+
+      editor.palette.y = (vp_height - palette_height) / 2;
+    }
+  }
 }
 
 static void LoadMenuDesignSettingsFromFilename(char *filename)