Revised/simplified toolkit concept

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1390 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 161 insertions, 0 deletions

diff --git a/nuttx/graphics/nxtk/nxtk_setsubwindows.c b/nuttx/graphics/nxtk/nxtk_setsubwindows.c
new file mode 100644
index 000000000..443fa92c3
--- /dev/null
+++ b/nuttx/graphics/nxtk/nxtk_setsubwindows.c
@@ -0,0 +1,161 @@
+/****************************************************************************
+ * graphics/nxtk/nxtk_setsubwindows.c
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <stdlib.h>
+#include <semaphore.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/nx.h>
+#include "nxtk_internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxtk_setsubwindows
+ *
+ * Description:
+ *   Give the window dimensions, border width, and toolbar height,
+ *   calculate the new dimensions of the toolbar region and client window
+ *   region
+ *
+ ****************************************************************************/
+
+void nxtk_setsubwindows(FAR struct nxtk_framedwindow_s *fwnd)
+{
+  nxgl_coord_t fullheight;
+  nxgl_coord_t bdrheight = 0;
+  nxgl_coord_t tbtop     = fwnd->wnd.origin.y;
+  nxgl_coord_t tbheight  = 0;
+  nxgl_coord_t fwtop     = fwnd->wnd.origin.y;
+  nxgl_coord_t fwheight  = 0;
+  nxgl_coord_t fullwidth;
+  nxgl_coord_t bdrwidth;
+  nxgl_coord_t fwwidth;
+  nxgl_coord_t fwleft;
+
+  /* Divide up the vertical dimension of the window */
+
+  fullheight = fwnd->wnd.bounds.pt2.y - fwnd->wnd.bounds.pt1.y + 1;
+
+  /* Is it tall enough for a border? */
+
+  if (fullheight > 0)
+    {
+      /* Get the border height */
+
+      bdrheight = ngl_min(2 * CONFIG_NXTK_BORDERWIDTH, fullheight);
+
+      /* Position the toolbar and client window just under the top border */
+
+      tbtop += (bdrheight / 2);
+      fwtop = tbtop;
+
+      /* Is it big enough for any part of the toolbar? */
+
+      if (fullheight > 2 * CONFIG_NXTK_BORDERWIDTH)
+        {
+           /* Yes.. get the height of the toolbar */
+
+          tbheight  = fwnd->tbheight;
+          if (tbheight >= fullheight - bdrheight)
+            {
+              tbheight = fullheight - bdrheight;
+            }
+          else
+            {
+              /* And the client window gets whatever is left */
+
+              fwheight = fullheight - bdrheight - tbheight;
+            }
+
+          /* Position the client window just under the toolbar */
+
+          fwtop += tbheight;
+        }
+    }
+
+  /* Divide up the horizontal dimensions of the window */
+
+  fullwidth = fwnd->wnd.bounds.pt2.x - fwnd->wnd.bounds.pt1.x;
+  bdrwidth  = ngl_min(2 * CONFIG_NXTK_BORDERWIDTH, fullwidth);
+  fwwidth   = fullwidth - bdrwidth;
+  fwleft    = fwnd->wnd.origin.x + bdrwidth/2;
+
+  /* Realize the positions/dimensions */
+
+  fwnd->tbrect.pt1.x = fwleft;
+  fwnd->tbrect.pt1.y = tbtop;
+  fwnd->tbrect.pt2.x = fwleft + fwwidth;
+  fwnd->tbrect.pt2.y = tbtop + tbheight - 1;
+
+  fwnd->fwrect.pt1.x = fwleft;
+  fwnd->fwrect.pt1.y = fwtop;
+  fwnd->fwrect.pt2.x = fwleft + fwwidth;
+  fwnd->fwrect.pt2.y = fwtop + fwheight - 1;
+}