more work on widgets and objects.

src/lib/aqdiagram/draw/0BUILD

@@ -70,19 +70,27 @@
 
     <headers dist="true" install="$(pkgincludedir)">
       context_cairo.h
-      o_drawable.h
+      w_drawable.h
     </headers>
   
     <headers dist="true" >
       context_cairo_p.h
-      o_drawable_p.h
+      w_drawable_p.h
+      w_hlayout.h
+      w_vlayout.h
+      w_mlayout.h
+      w_label.h
     </headers>
   
   
     <sources>
       $(local/typefiles)
       context_cairo.c
-      o_drawable.c
+      w_drawable.c
+      w_hlayout.c
+      w_vlayout.c
+      w_mlayout.c
+      w_label.c
     </sources>
 
     <extradist>

src/lib/aqdiagram/draw/o_drawable.h

@@ -1,51 +0,0 @@
-/****************************************************************************
- * This file is part of the project AqDiagram.
- * AqDiagram (c) by 2024 Martin Preuss, all rights reserved.
- *
- * The license for this file can be found in the file COPYING which you
- * should have received along with this file.
- ****************************************************************************/
-
-#ifndef AQDG_DRAW_O_DRAWABLE_H
-#define AQDG_DRAW_O_DRAWABLE_H
-
-#include <aqdiagram/aqdg_api.h>
-
-#include <aqdiagram/placement/object.h>
-#include <aqdiagram/draw/context.h>
-
-
-typedef int (*AQDG_OBJECT_DRAWABLE_DRAW_FN)(AQDG_OBJECT *object);
-
-
-
-AQDG_API AQDG_OBJECT *AQDG_DrawableObject_new(AQDG_OBJECT *parent, uint32_t options, AQDG_DRAW_CONTEXT *drawContext);
-
-AQDG_API AQDG_DRAW_CONTEXT *AQDG_DrawableObject_GetDrawContext(const AQDG_OBJECT *object);
-
-AQDG_API int AQDG_DrawableObject_GetFontId(const AQDG_OBJECT *object);
-AQDG_API void AQDG_DrawableObject_SetFontId(AQDG_OBJECT *object, int i);
-
-AQDG_API int AQDG_DrawableObject_GetForegroundPenId(const AQDG_OBJECT *object);
-AQDG_API void AQDG_DrawableObject_SetForegroundPenId(AQDG_OBJECT *object, int i);
-
-AQDG_API int AQDG_DrawableObject_GetBackgroundPenId(const AQDG_OBJECT *object);
-AQDG_API void AQDG_DrawableObject_SetBackgroundPenId(AQDG_OBJECT *object, int i);
-
-AQDG_API const char *AQDG_DrawableObject_GetText(const AQDG_OBJECT *object);
-AQDG_API void AQDG_DrawableObject_SetText(AQDG_OBJECT *object, const char *s);
-
-AQDG_API int AQDG_DrawableObject_GetContentWidth(const AQDG_OBJECT *object);
-AQDG_API void AQDG_DrawableObject_SetContentWidth(AQDG_OBJECT *object, int i);
-
-AQDG_API int AQDG_DrawableObject_GetContentHeight(const AQDG_OBJECT *object);
-AQDG_API void AQDG_DrawableObject_SetContentHeight(AQDG_OBJECT *object, int i);
-
-
-AQDG_API AQDG_OBJECT_DRAWABLE_DRAW_FN AQDG_DrawableObject_SetDrawFn(AQDG_OBJECT *object, AQDG_OBJECT_DRAWABLE_DRAW_FN fn);
-
-AQDG_API int AQDG_DrawableObject_Draw(AQDG_OBJECT *object);
-
-
-#endif
-

src/lib/aqdiagram/draw/w_drawable.c

@@ -10,7 +10,7 @@
 # include <config.h>
 #endif
 
-#include "o_drawable_p.h"
+#include "w_drawable_p.h"
 
 #include <gwenhywfar/debug.h>
 
@@ -24,9 +24,6 @@
 static GWENHYWFAR_CB void _freeData(void *bp, void *p);
 
 static int _drawFallback(AQDG_OBJECT *object);
-static int _getDefaultWidth(AQDG_OBJECT *object);
-static int _getDefaultHeight(AQDG_OBJECT *object);
-static void _updateContentSize(AQDG_OBJECT *object);
 
 
 
@@ -39,31 +36,39 @@ GWEN_INHERIT(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE);
 
 
 
-AQDG_OBJECT *AQDG_DrawableObject_new(AQDG_OBJECT *parent, uint32_t options, AQDG_DRAW_CONTEXT *drawContext)
+AQDG_OBJECT *AQDG_DrawableWidget_new(AQDG_OBJECT *parent, uint32_t options, AQDG_DRAW_CONTEXT *drawContext)
 {
   AQDG_OBJECT *object;
-  AQDG_OBJECT_DRAWABLE *xo;
 
   object=AQDG_Object_new();
+  if (parent)
+    AQDG_Object_Tree2_AddChild(parent, object);
+
+  AQDG_DrawableWidget_Extend(object, drawContext);
+  AQDG_Object_SetOptions(object, options);
+
+  return object;
+}
+
+
+
+void AQDG_DrawableWidget_Extend(AQDG_OBJECT *object, AQDG_DRAW_CONTEXT *drawContext)
+{
+  AQDG_OBJECT_DRAWABLE *xo;
+  AQDG_OBJECT *parent;
+
   GWEN_NEW_OBJECT(AQDG_OBJECT_DRAWABLE, xo);
   GWEN_INHERIT_SETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object, xo, _freeData);
 
-  AQDG_Object_SetOptions(object, options);
   xo->drawContext=drawContext;
   xo->drawFn=_drawFallback;
 
-  AQDG_Object_SetGetDefaultWidthFn(object, _getDefaultWidth);
+  parent=AQDG_Object_Tree2_GetParent(object);
-  AQDG_Object_SetGetDefaultHeightFn(object, _getDefaultHeight);
-
   if (parent && GWEN_INHERIT_ISOFTYPE(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, parent)) {
-    xo->fontId=AQDG_DrawableObject_GetFontId(parent);
+    xo->fontId=AQDG_DrawableWidget_GetFontId(parent);
-    xo->foregroundPenId=AQDG_DrawableObject_GetForegroundPenId(parent);
+    xo->foregroundPenId=AQDG_DrawableWidget_GetForegroundPenId(parent);
-    xo->backgroundPenId=AQDG_DrawableObject_GetBackgroundPenId(parent);
+    xo->backgroundPenId=AQDG_DrawableWidget_GetBackgroundPenId(parent);
   }
-
-  if (parent)
-    AQDG_Object_Tree2_AddChild(parent, object);
-  return object;
 }
 
 
@@ -79,7 +84,7 @@ GWENHYWFAR_CB void _freeData(void *bp, void *p)
 
 
 
-AQDG_DRAW_CONTEXT *AQDG_DrawableObject_GetDrawContext(const AQDG_OBJECT *object)
+AQDG_DRAW_CONTEXT *AQDG_DrawableWidget_GetDrawContext(const AQDG_OBJECT *object)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
@@ -92,7 +97,7 @@ AQDG_DRAW_CONTEXT *AQDG_DrawableObject_GetDrawContext(const AQDG_OBJECT *object)
 
 
 
-int AQDG_DrawableObject_GetFontId(const AQDG_OBJECT *object)
+int AQDG_DrawableWidget_GetFontId(const AQDG_OBJECT *object)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
@@ -105,7 +110,7 @@ int AQDG_DrawableObject_GetFontId(const AQDG_OBJECT *object)
 
 
 
-void AQDG_DrawableObject_SetFontId(AQDG_OBJECT *object, int i)
+void AQDG_DrawableWidget_SetFontId(AQDG_OBJECT *object, int i)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
@@ -114,10 +119,8 @@ void AQDG_DrawableObject_SetFontId(AQDG_OBJECT *object, int i)
     if (xo) {
       if (xo->fontId!=i) {
 	xo->fontId=i;
-	_updateContentSize(object);
+	AQDG_Object_AddFlags(object, AQDG_OBJECT_FLAGS_DRAW);
-	AQDG_Object_ModifyBranchFlagsUp(object,
+	AQDG_Object_ModifyBranchFlagsUp(object, AQDG_OBJECT_FLAGS_RECALC, AQDG_OBJECT_FLAGS_RECALC);
-					AQDG_OBJECT_FLAGS_LAYOUT | AQDG_OBJECT_FLAGS_DRAW,
-					AQDG_OBJECT_FLAGS_LAYOUT | AQDG_OBJECT_FLAGS_DRAW);
       }
     }
   }
@@ -125,7 +128,7 @@ void AQDG_DrawableObject_SetFontId(AQDG_OBJECT *object, int i)
 
 
 
-int AQDG_DrawableObject_GetForegroundPenId(const AQDG_OBJECT *object)
+int AQDG_DrawableWidget_GetForegroundPenId(const AQDG_OBJECT *object)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
@@ -138,20 +141,24 @@ int AQDG_DrawableObject_GetForegroundPenId(const AQDG_OBJECT *object)
 
 
 
-void AQDG_DrawableObject_SetForegroundPenId(AQDG_OBJECT *object, int i)
+void AQDG_DrawableWidget_SetForegroundPenId(AQDG_OBJECT *object, int i)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
 
     xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
-    if (xo)
+    if (xo) {
-      xo->foregroundPenId=i;
+      if (xo->foregroundPenId!=i) {
+	xo->foregroundPenId=i;
+	AQDG_Object_AddFlags(object, AQDG_OBJECT_FLAGS_DRAW);
+      }
+    }
   }
 }
 
 
 
-int AQDG_DrawableObject_GetBackgroundPenId(const AQDG_OBJECT *object)
+int AQDG_DrawableWidget_GetBackgroundPenId(const AQDG_OBJECT *object)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
@@ -164,20 +171,24 @@ int AQDG_DrawableObject_GetBackgroundPenId(const AQDG_OBJECT *object)
 
 
 
-void AQDG_DrawableObject_SetBackgroundPenId(AQDG_OBJECT *object, int i)
+void AQDG_DrawableWidget_SetBackgroundPenId(AQDG_OBJECT *object, int i)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
 
     xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
-    if (xo)
+    if (xo) {
-      xo->backgroundPenId=i;
+      if (xo->backgroundPenId!=i) {
+	xo->backgroundPenId=i;
+	AQDG_Object_AddFlags(object, AQDG_OBJECT_FLAGS_DRAW);
+      }
+    }
   }
 }
 
 
 
-const char *AQDG_DrawableObject_GetText(const AQDG_OBJECT *object)
+const char *AQDG_DrawableWidget_GetText(const AQDG_OBJECT *object)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
@@ -190,7 +201,7 @@ const char *AQDG_DrawableObject_GetText(const AQDG_OBJECT *object)
 
 
 
-void AQDG_DrawableObject_SetText(AQDG_OBJECT *object, const char *s)
+void AQDG_DrawableWidget_SetText(AQDG_OBJECT *object, const char *s)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
@@ -200,81 +211,22 @@ void AQDG_DrawableObject_SetText(AQDG_OBJECT *object, const char *s)
       free(xo->text);
       xo->text=s?strdup(s):NULL;
 
-      _updateContentSize(object);
+      AQDG_Object_AddFlags(object, AQDG_OBJECT_FLAGS_DRAW);
-      AQDG_Object_ModifyBranchFlagsUp(object,
+      AQDG_Object_ModifyBranchFlagsUp(object, AQDG_OBJECT_FLAGS_RECALC, AQDG_OBJECT_FLAGS_RECALC);
-				      AQDG_OBJECT_FLAGS_LAYOUT | AQDG_OBJECT_FLAGS_DRAW,
-				      AQDG_OBJECT_FLAGS_LAYOUT | AQDG_OBJECT_FLAGS_DRAW);
     }
   }
 }
 
 
 
-int AQDG_DrawableObject_GetContentWidth(const AQDG_OBJECT *object)
+AQDG_WIDGET_DRAWABLE_DRAW_FN AQDG_DrawableWidget_SetDrawFn(AQDG_OBJECT *object, AQDG_WIDGET_DRAWABLE_DRAW_FN fn)
-{
-  if (object) {
-    AQDG_OBJECT_DRAWABLE *xo;
-
-    xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
-    return xo?xo->contentWidth:0;
-  }
-  return 0;
-}
-
-
-
-void AQDG_DrawableObject_SetContentWidth(AQDG_OBJECT *object, int i)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
 
     xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
     if (xo) {
-      xo->contentWidth=i;
+      AQDG_WIDGET_DRAWABLE_DRAW_FN oldFn;
-      AQDG_Object_ModifyBranchFlagsUp(object, AQDG_OBJECT_FLAGS_LAYOUT, AQDG_OBJECT_FLAGS_LAYOUT);
-    }
-  }
-}
-
-
-
-int AQDG_DrawableObject_GetContentHeight(const AQDG_OBJECT *object)
-{
-  if (object) {
-    AQDG_OBJECT_DRAWABLE *xo;
-
-    xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
-    return xo?xo->contentHeight:0;
-  }
-  return 0;
-}
-
-
-
-void AQDG_DrawableObject_SetContentHeight(AQDG_OBJECT *object, int i)
-{
-  if (object) {
-    AQDG_OBJECT_DRAWABLE *xo;
-
-    xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
-    if (xo) {
-      xo->contentHeight=i;
-      AQDG_Object_ModifyBranchFlagsUp(object, AQDG_OBJECT_FLAGS_LAYOUT, AQDG_OBJECT_FLAGS_LAYOUT);
-    }
-  }
-}
-
-
-
-
-AQDG_OBJECT_DRAWABLE_DRAW_FN AQDG_DrawableObject_SetDrawFn(AQDG_OBJECT *object, AQDG_OBJECT_DRAWABLE_DRAW_FN fn)
-{
-  if (object) {
-    AQDG_OBJECT_DRAWABLE *xo;
-
-    xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
-    if (xo) {
-      AQDG_OBJECT_DRAWABLE_DRAW_FN oldFn;
 
       oldFn=xo->drawFn;
       xo->drawFn=fn;
@@ -287,7 +239,7 @@ AQDG_OBJECT_DRAWABLE_DRAW_FN AQDG_DrawableObject_SetDrawFn(AQDG_OBJECT *object,
 
 
 
-int AQDG_DrawableObject_Draw(AQDG_OBJECT *object)
+int AQDG_DrawableWidget_Draw(AQDG_OBJECT *object)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
@@ -302,25 +254,75 @@ int AQDG_DrawableObject_Draw(AQDG_OBJECT *object)
 
 
 
+int AQDG_DrawableWidget_DrawBackground(AQDG_OBJECT *object)
+{
+  if (object) {
+    AQDG_OBJECT_DRAWABLE *xo;
+
+    xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
+    if (xo) {
+      AQDG_Draw_Context_DrawFilledRect(xo->drawContext,
+				       xo->backgroundPenId,
+				       AQDG_Object_GetAbsoluteX(object),
+				       AQDG_Object_GetAbsoluteY(object),
+				       AQDG_Object_GetWidth(object),
+				       AQDG_Object_GetHeight(object));
+      return 1;
+    }
+  }
+  return 0;
+}
+
+
+
+void AQDG_DrawableWidget_DrawText(AQDG_OBJECT *object, int x, int y, const char *text)
+{
+  if (object) {
+    AQDG_OBJECT_DRAWABLE *xo;
+
+    xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
+    if (xo) {
+      x+=AQDG_Object_GetAbsoluteX(object);
+      y+=AQDG_Object_GetAbsoluteY(object);
+      AQDG_Draw_Context_DrawText(xo->drawContext, xo->foregroundPenId, xo->fontId, AQDG_Direction_Horizontal, x, y, text?text:"");
+    }
+  }
+}
+
+
+
+int AQDG_DrawableWidget_DrawChildren(AQDG_OBJECT *object)
+{
+  if (object) {
+    AQDG_OBJECT_DRAWABLE *xo;
+
+    xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
+    if (xo) {
+      AQDG_OBJECT *child;
+
+      child=AQDG_Object_Tree2_GetFirstChild(object);
+      if (child) {
+	while (child) {
+	  AQDG_DrawableWidget_Draw(child);
+	  child=AQDG_Object_Tree2_GetNext(child);
+	}
+	return 1;
+      }
+    }
+  }
+  return 0;
+}
+
+
+
 int _drawFallback(AQDG_OBJECT *object)
 {
   AQDG_OBJECT_DRAWABLE *xo;
 
   xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
   if (xo) {
-    AQDG_OBJECT *child;
+    AQDG_DrawableWidget_DrawBackground(object);
-
+    AQDG_DrawableWidget_DrawChildren(object);
-    AQDG_Draw_Context_DrawFilledRect(xo->drawContext,
-                                     xo->backgroundPenId,
-                                     AQDG_Object_GetAbsoluteX(object),
-                                     AQDG_Object_GetAbsoluteY(object),
-                                     AQDG_Object_GetWidth(object),
-                                     AQDG_Object_GetHeight(object));
-    child=AQDG_Object_Tree2_GetFirstChild(object);
-    while(child) {
-      AQDG_DrawableObject_Draw(child);
-      child=AQDG_Object_Tree2_GetNext(child);
-    }
     AQDG_Object_SubFlags(object, AQDG_OBJECT_FLAGS_DRAW);
     return 1;
   }
@@ -329,57 +331,24 @@ int _drawFallback(AQDG_OBJECT *object)
 
 
 
-int _getDefaultWidth(AQDG_OBJECT *object)
+void AQDG_DrawableWidget_UpdateTextContentDims(AQDG_OBJECT *object)
-{
-  AQDG_OBJECT_DRAWABLE *xo;
-
-  xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
-  if (xo) {
-    return xo->contentWidth;
-  }
-  return 1;
-}
-
-
-
-int _getDefaultHeight(AQDG_OBJECT *object)
-{
-  AQDG_OBJECT_DRAWABLE *xo;
-
-  xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
-  if (xo) {
-    return xo->contentHeight;
-  }
-  return 1;
-}
-
-
-
-void _updateContentSize(AQDG_OBJECT *object)
 {
   if (object) {
     AQDG_OBJECT_DRAWABLE *xo;
 
     xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
     if (xo) {
-      xo->contentWidth=0;
-      xo->contentHeight=0;
       if (xo->text) {
-	int i;
+        int w;
+        int h;
 
-	i=AQDG_Draw_Context_GetTextWidth(xo->drawContext, xo->fontId, xo->text);
+        w=AQDG_DrawableWidget_GetTextWidth(object);
-	if (i<0) {
+        w+=AQDG_Object_GetBorderLeft(object)+AQDG_Object_GetBorderRight(object);
-	  DBG_INFO(NULL, "here (%d)", i);
+        h=AQDG_DrawableWidget_GetTextHeight(object);
-	}
+        h+=AQDG_Object_GetBorderTop(object)+AQDG_Object_GetBorderBottom(object);
-	else
-	  xo->contentWidth=i;
 
-	i=AQDG_Draw_Context_GetTextHeight(xo->drawContext, xo->fontId, xo->text);
+        AQDG_Object_SetContentWidth(object, w);
-	if (i<0) {
+        AQDG_Object_SetContentHeight(object, h);
-	  DBG_INFO(NULL, "here (%d)", i);
-	}
-	else
-	  xo->contentHeight=i;
       }
     }
   }
@@ -387,6 +356,54 @@ void _updateContentSize(AQDG_OBJECT *object)
 
 
 
+int AQDG_DrawableWidget_GetTextWidth(AQDG_OBJECT *object)
+{
+  if (object) {
+    AQDG_OBJECT_DRAWABLE *xo;
+
+    xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
+    if (xo) {
+      if (xo->text) {
+        int w;
+
+	w=AQDG_Draw_Context_GetTextWidth(xo->drawContext, xo->fontId, xo->text);
+	if (w<0) {
+          DBG_INFO(NULL, "here (%d)", w);
+          return 0;
+        }
+        return w;
+      }
+    }
+  }
+  return 0;
+}
+
+
+
+int AQDG_DrawableWidget_GetTextHeight(AQDG_OBJECT *object)
+{
+  if (object) {
+    AQDG_OBJECT_DRAWABLE *xo;
+
+    xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_DRAWABLE, object);
+    if (xo) {
+      if (xo->text) {
+        int h;
+
+	h=AQDG_Draw_Context_GetTextHeight(xo->drawContext, xo->fontId, xo->text);
+	if (h<0) {
+          DBG_INFO(NULL, "here (%d)", h);
+          return 0;
+        }
+        return h;
+      }
+    }
+  }
+  return 0;
+}
+
+
+
 
 
 

src/lib/aqdiagram/draw/w_drawable.h

@@ -0,0 +1,75 @@
+/****************************************************************************
+ * This file is part of the project AqDiagram.
+ * AqDiagram (c) by 2024 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifndef AQDG_DRAW_W_DRAWABLE_H
+#define AQDG_DRAW_W_DRAWABLE_H
+
+#include <aqdiagram/aqdg_api.h>
+
+#include <aqdiagram/placement/object.h>
+#include <aqdiagram/draw/context.h>
+
+
+typedef int (*AQDG_WIDGET_DRAWABLE_DRAW_FN)(AQDG_OBJECT *object);
+
+#define AQDG_DRAWABLE_OPTIONS_JUSTIFY_RIGHT   0x00000001
+#define AQDG_DRAWABLE_OPTIONS_JUSTIFY_HCENTER 0x00000002
+#define AQDG_DRAWABLE_OPTIONS_JUSTIFY_BOTTOM  0x00000004
+#define AQDG_DRAWABLE_OPTIONS_JUSTIFY_VCENTER 0x00000008
+
+
+/**
+ * Sets virtual functions:
+ * - AQDG_OBJECT_DRAWABLE_DRAW_FN (just fill background and lets children draw their content)
+ */
+AQDG_API AQDG_OBJECT *AQDG_DrawableWidget_new(AQDG_OBJECT *parent, uint32_t options, AQDG_DRAW_CONTEXT *drawContext);
+
+/**
+ * Only sets draw function, does not overwrite getDefaultWidth/Height or layout functions.
+ */
+AQDG_API void AQDG_DrawableWidget_Extend(AQDG_OBJECT *object, AQDG_DRAW_CONTEXT *drawContext);
+
+AQDG_API AQDG_DRAW_CONTEXT *AQDG_DrawableWidget_GetDrawContext(const AQDG_OBJECT *object);
+
+AQDG_API int AQDG_DrawableWidget_GetFontId(const AQDG_OBJECT *object);
+AQDG_API void AQDG_DrawableWidget_SetFontId(AQDG_OBJECT *object, int i);
+
+AQDG_API int AQDG_DrawableWidget_GetForegroundPenId(const AQDG_OBJECT *object);
+AQDG_API void AQDG_DrawableWidget_SetForegroundPenId(AQDG_OBJECT *object, int i);
+
+AQDG_API int AQDG_DrawableWidget_GetBackgroundPenId(const AQDG_OBJECT *object);
+AQDG_API void AQDG_DrawableWidget_SetBackgroundPenId(AQDG_OBJECT *object, int i);
+
+AQDG_API const char *AQDG_DrawableWidget_GetText(const AQDG_OBJECT *object);
+AQDG_API void AQDG_DrawableWidget_SetText(AQDG_OBJECT *object, const char *s);
+
+AQDG_API int AQDG_DrawableWidget_GetContentWidth(const AQDG_OBJECT *object);
+AQDG_API void AQDG_DrawableWidget_SetContentWidth(AQDG_OBJECT *object, int i);
+
+AQDG_API int AQDG_DrawableWidget_GetContentHeight(const AQDG_OBJECT *object);
+AQDG_API void AQDG_DrawableWidget_SetContentHeight(AQDG_OBJECT *object, int i);
+
+
+AQDG_API AQDG_WIDGET_DRAWABLE_DRAW_FN AQDG_DrawableWidget_SetDrawFn(AQDG_OBJECT *object, AQDG_WIDGET_DRAWABLE_DRAW_FN fn);
+
+AQDG_API int AQDG_DrawableWidget_Draw(AQDG_OBJECT *object);
+
+
+AQDG_API int AQDG_DrawableWidget_DrawBackground(AQDG_OBJECT *object);
+AQDG_API int AQDG_DrawableWidget_DrawChildren(AQDG_OBJECT *object);
+AQDG_API void AQDG_DrawableWidget_DrawText(AQDG_OBJECT *object, int x, int y, const char *text);
+
+
+AQDG_API void AQDG_DrawableWidget_UpdateTextContentDims(AQDG_OBJECT *object);
+
+AQDG_API int AQDG_DrawableWidget_GetTextWidth(AQDG_OBJECT *object);
+AQDG_API int AQDG_DrawableWidget_GetTextHeight(AQDG_OBJECT *object);
+
+
+#endif
+

src/lib/aqdiagram/draw/w_drawable_p.h

@@ -6,10 +6,10 @@
  * should have received along with this file.
  ****************************************************************************/
 
-#ifndef AQDG_DRAW_O_DRAWABLE_P_H
+#ifndef AQDG_DRAW_W_DRAWABLE_P_H
-#define AQDG_DRAW_O_DRAWABLE_P_H
+#define AQDG_DRAW_W_DRAWABLE_P_H
 
-#include <aqdiagram/draw/o_drawable.h>
+#include <aqdiagram/draw/w_drawable.h>
 
 
 typedef struct AQDG_OBJECT_DRAWABLE AQDG_OBJECT_DRAWABLE;
@@ -20,10 +20,8 @@ struct AQDG_OBJECT_DRAWABLE {
   int backgroundPenId;
 
   char *text;
-  int contentWidth;
-  int contentHeight;
 
-  AQDG_OBJECT_DRAWABLE_DRAW_FN drawFn;
+  AQDG_WIDGET_DRAWABLE_DRAW_FN drawFn;
 };
 
 

src/lib/aqdiagram/draw/w_hlayout.c

@@ -0,0 +1,33 @@
+/****************************************************************************
+ * This file is part of the project AqDiagram.
+ * AqDiagram (c) by 2024 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "./w_vlayout.h"
+
+#include "./w_drawable.h"
+#include "aqdiagram/placement/o_hlayout.h"
+
+#include <gwenhywfar/debug.h>
+
+
+
+AQDG_OBJECT *AQDG_HLayoutWidget_new(AQDG_OBJECT *parent, uint32_t options, AQDG_DRAW_CONTEXT *drawContext)
+{
+  AQDG_OBJECT *object;
+
+  object=AQDG_HLayoutObject_new(parent, options);
+  AQDG_DrawableWidget_Extend(object, drawContext);
+
+  return object;
+}
+
+
+

src/lib/aqdiagram/draw/w_hlayout.h

@@ -0,0 +1,23 @@
+/****************************************************************************
+ * This file is part of the project AqDiagram.
+ * AqDiagram (c) by 2024 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifndef AQDG_DRAW_W_HLAYOUT_H
+#define AQDG_DRAW_W_HLAYOUT_H
+
+#include <aqdiagram/aqdg_api.h>
+
+#include <aqdiagram/placement/object.h>
+#include <aqdiagram/draw/context.h>
+
+
+AQDG_API AQDG_OBJECT *AQDG_HLayoutWidget_new(AQDG_OBJECT *parent, uint32_t options, AQDG_DRAW_CONTEXT *drawContext);
+
+
+
+#endif
+

src/lib/aqdiagram/draw/w_label.c

@@ -0,0 +1,148 @@
+/****************************************************************************
+ * This file is part of the project AqDiagram.
+ * AqDiagram (c) by 2024 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "./w_label.h"
+
+#include "./w_drawable.h"
+
+#include <gwenhywfar/debug.h>
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * forward declarations
+ * ------------------------------------------------------------------------------------------------
+ */
+
+static int _draw(AQDG_OBJECT *object);
+static int _calcXPos(AQDG_OBJECT *object, uint32_t opts, int tw);
+static int _calcYPos(AQDG_OBJECT *object, uint32_t opts, int th);
+
+
+
+/* ------------------------------------------------------------------------------------------------
+ * implementations
+ * ------------------------------------------------------------------------------------------------
+ */
+
+
+
+AQDG_OBJECT *AQDG_LabelWidget_new(AQDG_OBJECT *parent, uint32_t options, AQDG_DRAW_CONTEXT *drawContext)
+{
+  AQDG_OBJECT *object;
+
+  object=AQDG_DrawableWidget_new(parent, options, drawContext);
+  AQDG_Object_SetOptions(object, options);
+  AQDG_DrawableWidget_SetDrawFn(object, _draw);
+  if (parent)
+    AQDG_Object_Tree2_AddChild(parent, object);
+  return object;
+}
+
+
+
+int _draw(AQDG_OBJECT *object)
+{
+  if (object) {
+    uint32_t opts;
+    int x;
+    int y;
+    int tw;
+    int th;
+
+    AQDG_DrawableWidget_DrawBackground(object);
+    opts=AQDG_Object_GetOptions(object);
+    tw=AQDG_DrawableWidget_GetTextWidth(object);
+    th=AQDG_DrawableWidget_GetTextHeight(object);
+
+    x=_calcXPos(object, opts, tw);
+    y=_calcYPos(object, opts, th);
+    AQDG_DrawableWidget_DrawText(object, x, y, AQDG_DrawableWidget_GetText(object));
+    return 1;
+  }
+
+  return 0;
+}
+
+
+
+int _calcXPos(AQDG_OBJECT *object, uint32_t opts, int tw)
+{
+  int x;
+  int w;
+
+  w=AQDG_Object_GetWidth(object)-AQDG_Object_GetBorderLeft(object)-AQDG_Object_GetBorderRight(object);
+  if (w<0) {
+    DBG_ERROR(NULL, "Width smaller than borders (%d)", w);
+    return AQDG_Object_GetBorderLeft(object);
+  }
+
+  if (opts & AQDG_DRAWABLE_OPTIONS_JUSTIFY_RIGHT) {
+    /* right */
+    x=(w-tw)+AQDG_Object_GetBorderLeft(object);
+  }
+  else if (opts & AQDG_DRAWABLE_OPTIONS_JUSTIFY_HCENTER) {
+    /* hcenter */
+    x=((w-tw)/2)+AQDG_Object_GetBorderLeft(object);
+  }
+  else {
+    /* left */
+    x=AQDG_Object_GetBorderLeft(object);
+  }
+
+  if (x<AQDG_Object_GetBorderLeft(object)) {
+    DBG_INFO(NULL, "x lower than left border pos");
+    x=AQDG_Object_GetBorderLeft(object);
+  }
+
+  return x;
+}
+
+
+
+int _calcYPos(AQDG_OBJECT *object, uint32_t opts, int th)
+{
+  int y;
+  int h;
+
+  h=AQDG_Object_GetHeight(object)-AQDG_Object_GetBorderTop(object)-AQDG_Object_GetBorderBottom(object);
+  if (h<0) {
+    DBG_ERROR(NULL, "Height smaller than borders (%d)", h);
+    return AQDG_Object_GetBorderTop(object);
+  }
+
+  if (opts & AQDG_DRAWABLE_OPTIONS_JUSTIFY_BOTTOM) {
+    /* bottom */
+    y=(h-th)+AQDG_Object_GetBorderTop(object);
+  }
+  else if (opts & AQDG_DRAWABLE_OPTIONS_JUSTIFY_VCENTER) {
+    /* vcenter */
+    y=((h-th)/2)+AQDG_Object_GetBorderTop(object);
+  }
+  else {
+    /* top */
+    y=AQDG_Object_GetBorderTop(object);
+  }
+
+  if (y<AQDG_Object_GetBorderTop(object)) {
+    DBG_INFO(NULL, "y lower than top border pos");
+    y=AQDG_Object_GetBorderTop(object);
+  }
+
+  return y;
+}
+
+
+
+
+
+

src/lib/aqdiagram/draw/w_label.h

@@ -0,0 +1,23 @@
+/****************************************************************************
+ * This file is part of the project AqDiagram.
+ * AqDiagram (c) by 2024 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifndef AQDG_DRAW_W_LABEL_H
+#define AQDG_DRAW_W_LABEL_H
+
+#include <aqdiagram/aqdg_api.h>
+
+#include <aqdiagram/placement/object.h>
+#include <aqdiagram/draw/context.h>
+
+
+AQDG_API AQDG_OBJECT *AQDG_LabelWidget_new(AQDG_OBJECT *parent, uint32_t options, AQDG_DRAW_CONTEXT *drawContext);
+
+
+
+#endif
+

src/lib/aqdiagram/draw/w_mlayout.c

@@ -0,0 +1,46 @@
+/****************************************************************************
+ * This file is part of the project AqDiagram.
+ * AqDiagram (c) by 2024 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "./w_mlayout.h"
+
+#include "./w_drawable.h"
+#include "aqdiagram/placement/o_mlayout.h"
+
+#include <gwenhywfar/debug.h>
+
+
+
+AQDG_OBJECT *AQDG_MatrixLayoutWidgetByRows_new(AQDG_OBJECT *parent, uint32_t options, int columns, AQDG_DRAW_CONTEXT *drawContext)
+{
+  AQDG_OBJECT *object;
+
+  object=AQDG_MatrixLayoutObjectByRows_new(parent, options, columns);
+  AQDG_DrawableWidget_Extend(object, drawContext);
+
+  return object;
+}
+
+
+
+AQDG_OBJECT *AQDG_MatrixLayoutWidgetByColumns_new(AQDG_OBJECT *parent, uint32_t options, int rows, AQDG_DRAW_CONTEXT *drawContext)
+{
+  AQDG_OBJECT *object;
+
+  object=AQDG_MatrixLayoutObjectByColumns_new(parent, options, rows);
+  AQDG_DrawableWidget_Extend(object, drawContext);
+
+  return object;
+}
+
+
+
+

src/lib/aqdiagram/draw/w_mlayout.h

@@ -0,0 +1,27 @@
+/****************************************************************************
+ * This file is part of the project AqDiagram.
+ * AqDiagram (c) by 2024 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifndef AQDG_DRAW_W_MLAYOUT_H
+#define AQDG_DRAW_W_MLAYOUT_H
+
+#include <aqdiagram/aqdg_api.h>
+
+#include <aqdiagram/placement/object.h>
+#include <aqdiagram/draw/context.h>
+
+
+AQDG_API AQDG_OBJECT *AQDG_MatrixLayoutWidgetByRows_new(AQDG_OBJECT *parent, uint32_t options, int columns,
+                                                        AQDG_DRAW_CONTEXT *drawContext);
+
+AQDG_API AQDG_OBJECT *AQDG_MatrixLayoutWidgetByColumns_new(AQDG_OBJECT *parent, uint32_t options, int rows,
+                                                           AQDG_DRAW_CONTEXT *drawContext);
+
+
+
+#endif
+

src/lib/aqdiagram/draw/w_vlayout.c

@@ -0,0 +1,33 @@
+/****************************************************************************
+ * This file is part of the project AqDiagram.
+ * AqDiagram (c) by 2024 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "./w_vlayout.h"
+
+#include "./w_drawable.h"
+#include "aqdiagram/placement/o_vlayout.h"
+
+#include <gwenhywfar/debug.h>
+
+
+
+AQDG_OBJECT *AQDG_VLayoutWidget_new(AQDG_OBJECT *parent, uint32_t options, AQDG_DRAW_CONTEXT *drawContext)
+{
+  AQDG_OBJECT *object;
+
+  object=AQDG_VLayoutObject_new(parent, options);
+  AQDG_DrawableWidget_Extend(object, drawContext);
+
+  return object;
+}
+
+
+

src/lib/aqdiagram/draw/w_vlayout.h

@@ -0,0 +1,23 @@
+/****************************************************************************
+ * This file is part of the project AqDiagram.
+ * AqDiagram (c) by 2024 Martin Preuss, all rights reserved.
+ *
+ * The license for this file can be found in the file COPYING which you
+ * should have received along with this file.
+ ****************************************************************************/
+
+#ifndef AQDG_DRAW_W_VLAYOUT_H
+#define AQDG_DRAW_W_VLAYOUT_H
+
+#include <aqdiagram/aqdg_api.h>
+
+#include <aqdiagram/placement/object.h>
+#include <aqdiagram/draw/context.h>
+
+
+AQDG_API AQDG_OBJECT *AQDG_VLayoutWidget_new(AQDG_OBJECT *parent, uint32_t options, AQDG_DRAW_CONTEXT *drawContext);
+
+
+
+#endif
+

src/lib/aqdiagram/placement/o_hlayout-t.c

@@ -31,8 +31,6 @@
 static int GWENHYWFAR_CB test1(GWEN_TEST_MODULE *mod);
 
 static AQDG_OBJECT *_createBox10x10(uint32_t opts);
-static int _boxGetDefaultWidth10(AQDG_OBJECT *object);
-static int _boxGetDefaultHeight10(AQDG_OBJECT *object);
 
 
 
@@ -166,29 +164,13 @@ AQDG_OBJECT *_createBox10x10(uint32_t opts)
 
   box=AQDG_Object_new();
   AQDG_Object_SetOptions(box, opts);
-  AQDG_Object_SetGetDefaultWidthFn(box, _boxGetDefaultWidth10);
+  AQDG_Object_SetContentWidth(box, 10);
-  AQDG_Object_SetGetDefaultHeightFn(box, _boxGetDefaultHeight10);
+  AQDG_Object_SetContentHeight(box, 10);
   return box;
 }
 
 
 
-int _boxGetDefaultWidth10(AQDG_OBJECT *object)
-{
-  return 10;
-}
-
-
-
-int _boxGetDefaultHeight10(AQDG_OBJECT *object)
-{
-  return 10;
-}
-
-
-
-
-
 #else
 
 int AQDG_HLayoutObject_AddTests(GWEN_TEST_MODULE *mod)

src/lib/aqdiagram/placement/o_hlayout.c

@@ -20,6 +20,9 @@
  */
 
 static int _layout(AQDG_OBJECT *object);
+static int _calcContentDims(AQDG_OBJECT *object);
+static int _calcContentWidth(AQDG_OBJECT *object);
+static int _calcContentHeight(AQDG_OBJECT *object);
 
 
 
@@ -36,6 +39,7 @@ AQDG_OBJECT *AQDG_HLayoutObject_new(AQDG_OBJECT *parent, uint32_t options)
   AQDG_Object_SetOptions(object, options);
 
   AQDG_Object_SetLayoutFn(object, _layout);
+  AQDG_Object_SetCalcContentDimsFn(object, _calcContentDims);
 
   if (parent)
     AQDG_Object_Tree2_AddChild(parent, object);
@@ -82,3 +86,55 @@ int _layout(AQDG_OBJECT *object)
 
 
 
+int _calcContentDims(AQDG_OBJECT *object)
+{
+  AQDG_Object_SetContentWidth(object, _calcContentWidth(object));
+  AQDG_Object_SetContentHeight(object, _calcContentHeight(object));
+  return 0;
+}
+
+
+int _calcContentWidth(AQDG_OBJECT *object)
+{
+  AQDG_OBJECT *child;
+  int v;
+  int spacing;
+
+  v=AQDG_Object_GetBorderLeft(object);
+  spacing=AQDG_Object_GetHSpacing(object);
+  child=AQDG_Object_Tree2_GetFirstChild(object);
+  while(child) {
+    v+=AQDG_Object_GetDefaultWidth(child);
+    child=AQDG_Object_Tree2_GetNext(child);
+    if (child)
+      v+=spacing;
+  }
+  v+=AQDG_Object_GetBorderRight(object);
+
+  return v;
+}
+
+
+
+int _calcContentHeight(AQDG_OBJECT *object)
+{
+  AQDG_OBJECT *child;
+  int v;
+
+  v=AQDG_Object_GetBorderTop(object);
+  child=AQDG_Object_Tree2_GetFirstChild(object);
+  while(child) {
+    int i;
+
+    i=AQDG_Object_GetDefaultHeight(child);
+    v=(i>v)?i:v;
+    child=AQDG_Object_Tree2_GetNext(child);
+  }
+  v+=AQDG_Object_GetBorderBottom(object);
+
+  return v;
+}
+
+
+
+

src/lib/aqdiagram/placement/o_mlayout.c

@@ -39,6 +39,15 @@ static void _setChildrenFromElementsY(AQDG_OBJECT *object, const AQDG_PLACEMENT_
 static void _setObjectFromElementX(AQDG_OBJECT *object, const AQDG_PLACEMENT_LAYOUT_ELEMENT *eptr);
 static void _setObjectFromElementY(AQDG_OBJECT *object, const AQDG_PLACEMENT_LAYOUT_ELEMENT *eptr);
 
+static int _calcDimsByRows(AQDG_OBJECT *object);
+static int _calcDimsByColumns(AQDG_OBJECT *object);
+
+static int _calcWidthByRows(const AQDG_OBJECT *object, int columns);
+static int _calcHeightByRows(const AQDG_OBJECT *object, int columns);
+
+static int _calcWidthByColumns(const AQDG_OBJECT *object, int rows);
+static int _calcHeightByColumns(const AQDG_OBJECT *object, int rows);
+
 
 
 /* ------------------------------------------------------------------------------------------------
@@ -56,6 +65,7 @@ AQDG_OBJECT *AQDG_MatrixLayoutObjectByRows_new(AQDG_OBJECT *parent, uint32_t opt
 
   object=_matrixLayoutObject_new(parent, options, columns);
   AQDG_Object_SetLayoutFn(object, _layoutByRows);
+  AQDG_Object_SetCalcContentDimsFn(object, _calcDimsByRows);
   return object;
 }
 
@@ -67,6 +77,7 @@ AQDG_OBJECT *AQDG_MatrixLayoutObjectByColumns_new(AQDG_OBJECT *parent, uint32_t
 
   object=_matrixLayoutObject_new(parent, options, rows);
   AQDG_Object_SetLayoutFn(object, _layoutByColumns);
+  AQDG_Object_SetCalcContentDimsFn(object, _calcDimsByColumns);
   return object;
 }
 
@@ -345,3 +356,177 @@ void _setObjectFromElementY(AQDG_OBJECT *object, const AQDG_PLACEMENT_LAYOUT_ELE
 
 
 
+
+int _calcDimsByRows(AQDG_OBJECT *object)
+{
+  AQDG_OBJECT_MLAYOUT *xo;
+
+  xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_MLAYOUT, object);
+  if (xo) {
+    AQDG_Object_SetContentWidth(object, _calcWidthByRows(object, xo->numRowsOrColumns));
+    AQDG_Object_SetContentHeight(object, _calcHeightByRows(object, xo->numRowsOrColumns));
+    return 1;
+  }
+  return 0;
+}
+
+
+
+int _calcDimsByColumns(AQDG_OBJECT *object)
+{
+  AQDG_OBJECT_MLAYOUT *xo;
+
+  xo=GWEN_INHERIT_GETDATA(AQDG_OBJECT, AQDG_OBJECT_MLAYOUT, object);
+  if (xo) {
+    AQDG_Object_SetContentWidth(object, _calcWidthByColumns(object, xo->numRowsOrColumns));
+    AQDG_Object_SetContentHeight(object, _calcHeightByColumns(object, xo->numRowsOrColumns));
+    return 1;
+  }
+  return 0;
+}
+
+
+
+int _calcWidthByRows(const AQDG_OBJECT *object, int columns)
+{
+  AQDG_OBJECT *child;
+  int i=0;
+  int cw=0;
+  int w;
+
+  w=AQDG_Object_GetBorderLeft(object);
+  i=0;
+  cw=0;
+  child=AQDG_Object_Tree2_GetFirstChild(object);
+  while(child && i<columns) {
+    AQDG_OBJECT *n;
+
+    /* get highest width of column */
+    n=child;
+    while(n) {
+      int k;
+      int j=0;
+
+      k=AQDG_Object_GetDefaultWidth(n);
+      cw=(k>cw)?k:cw;
+      while(n && j<columns) { /* skip columns */
+        j++;
+        n=AQDG_Object_Tree2_GetNext(n);
+      }
+    }
+    w+=cw;
+    child=AQDG_Object_Tree2_GetNext(child);
+    if (child)
+      w+=AQDG_Object_GetHSpacing(object);
+    i++;
+  }
+  w+=AQDG_Object_GetBorderRight(object);
+
+  return w;
+}
+
+
+
+int _calcHeightByRows(const AQDG_OBJECT *object, int columns)
+{
+  AQDG_OBJECT *child;
+  int i=0;
+  int ch=0;
+  int h;
+
+  h=AQDG_Object_GetBorderTop(object);
+  i=0;
+  child=AQDG_Object_Tree2_GetFirstChild(object);
+  while(child) {
+    int k;
+
+    k=AQDG_Object_GetDefaultHeight(child);
+    ch=(k>ch)?k:ch;
+    child=AQDG_Object_Tree2_GetNext(child);
+    i++;
+    if (i>=columns) {
+      h+=ch;
+      i=0;
+      ch=0;
+      if (child)
+        h+=AQDG_Object_GetVSpacing(object);
+    }
+  }
+  h+=AQDG_Object_GetBorderBottom(object);
+  return h;
+}
+
+
+
+int _calcWidthByColumns(const AQDG_OBJECT *object, int rows)
+{
+  AQDG_OBJECT *child;
+  int i=0;
+  int cw=0;
+  int w;
+
+  w=AQDG_Object_GetBorderLeft(object);
+  i=0;
+  child=AQDG_Object_Tree2_GetFirstChild(object);
+  while(child) {
+    int k;
+
+    k=AQDG_Object_GetDefaultWidth(child);
+    cw=(k>cw)?k:cw;
+    child=AQDG_Object_Tree2_GetNext(child);
+    i++;
+    if (i>=rows) {
+      w+=cw;
+      i=0;
+      cw=0;
+      if (child)
+        w+=AQDG_Object_GetHSpacing(object);
+    }
+  }
+  w+=AQDG_Object_GetBorderRight(object);
+  return w;
+}
+
+
+
+int _calcHeightByColumns(const AQDG_OBJECT *object, int rows)
+{
+  AQDG_OBJECT *child;
+  int i=0;
+  int ch=0;
+  int h;
+
+  h=AQDG_Object_GetBorderTop(object);
+  i=0;
+  ch=0;
+  child=AQDG_Object_Tree2_GetFirstChild(object);
+  while(child && i<rows) {
+    AQDG_OBJECT *n;
+
+    /* get highest height of row */
+    n=child;
+    while(n) {
+      int k;
+      int j=0;
+
+      k=AQDG_Object_GetDefaultHeight(n);
+      ch=(k>ch)?k:ch;
+      while(n && j<rows) { /* skip rows */
+        j++;
+        n=AQDG_Object_Tree2_GetNext(n);
+      }
+    }
+    h+=ch;
+    child=AQDG_Object_Tree2_GetNext(child);
+    if (child)
+      h+=AQDG_Object_GetVSpacing(object);
+    i++;
+  }
+  h+=AQDG_Object_GetBorderBottom(object);
+  return h;
+}
+
+
+
+
+

src/lib/aqdiagram/placement/o_vlayout.c

@@ -20,6 +20,9 @@
  */
 
 static int _layout(AQDG_OBJECT *object);
+static int _calcContentDims(AQDG_OBJECT *object);
+static int _calcContentWidth(AQDG_OBJECT *object);
+static int _calcContentHeight(AQDG_OBJECT *object);
 
 
 
@@ -36,6 +39,7 @@ AQDG_OBJECT *AQDG_VLayoutObject_new(AQDG_OBJECT *parent, uint32_t options)
   AQDG_Object_SetOptions(object, options);
 
   AQDG_Object_SetLayoutFn(object, _layout);
+  AQDG_Object_SetCalcContentDimsFn(object, _calcContentDims);
 
   if (parent)
     AQDG_Object_Tree2_AddChild(parent, object);
@@ -82,3 +86,55 @@ int _layout(AQDG_OBJECT *object)
 
 
 
+int _calcContentDims(AQDG_OBJECT *object)
+{
+  AQDG_Object_SetContentWidth(object, _calcContentWidth(object));
+  AQDG_Object_SetContentHeight(object, _calcContentHeight(object));
+  return 0;
+}
+
+
+
+int _calcContentWidth(AQDG_OBJECT *object)
+{
+  AQDG_OBJECT *child;
+  int v;
+
+  v=AQDG_Object_GetBorderLeft(object);
+  child=AQDG_Object_Tree2_GetFirstChild(object);
+  while(child) {
+    int i;
+
+    i=AQDG_Object_GetDefaultWidth(child);
+    v=(i>v)?i:v;
+    child=AQDG_Object_Tree2_GetNext(child);
+  }
+  v+=AQDG_Object_GetBorderRight(object);
+
+  return v;
+}
+
+
+
+int _calcContentHeight(AQDG_OBJECT *object)
+{
+  AQDG_OBJECT *child;
+  int v;
+  int spacing;
+
+  v=AQDG_Object_GetBorderTop(object);
+  spacing=AQDG_Object_GetVSpacing(object);
+  child=AQDG_Object_Tree2_GetFirstChild(object);
+  while(child) {
+    v+=AQDG_Object_GetDefaultHeight(child);
+    child=AQDG_Object_Tree2_GetNext(child);
+    if (child)
+      v+=spacing;
+  }
+  v+=AQDG_Object_GetBorderBottom(object);
+
+  return v;
+}
+
+
+

src/lib/aqdiagram/placement/object.xml

@@ -69,6 +69,52 @@
              }                                                                                                     \n
           </content>
         </inline>
+
+
+        <inline loc="end" access="public">
+          <content>
+             $(api) int $(struct_prefix)_GetDefaultWidth($(struct_type) *object);
+          </content>
+        </inline>
+
+        <inline loc="code">
+          <content>
+             int $(struct_prefix)_GetDefaultWidth($(struct_type) *object) \n
+             {                                                            \n
+               if (object) {                                              \n
+                 if (object->flags &amp; AQDG_OBJECT_FLAGS_RECALC) {      \n
+                   $(struct_prefix)_CalcContentDims(object);              \n
+                   object->flags &amp;=~AQDG_OBJECT_FLAGS_RECALC;         \n
+                 }                                                        \n
+                 return object->contentWidth;                             \n
+               }                                                          \n
+               return 1;                                                  \n
+             }                                                            \n
+          </content>
+        </inline>
+
+
+        <inline loc="end" access="public">
+          <content>
+             $(api) int $(struct_prefix)_GetDefaultHeight($(struct_type) *object);
+          </content>
+        </inline>
+
+        <inline loc="code">
+          <content>
+             int $(struct_prefix)_GetDefaultHeight($(struct_type) *object)\n
+             {                                                            \n
+               if (object) {                                              \n
+                 if (object->flags &amp; AQDG_OBJECT_FLAGS_RECALC) {      \n
+                   $(struct_prefix)_CalcContentDims(object);              \n
+                   object->flags &amp;=~AQDG_OBJECT_FLAGS_RECALC;         \n
+                 }                                                        \n
+                 return object->contentHeight;                            \n
+               }                                                          \n
+               return 1;                                                  \n
+             }                                                            \n
+          </content>
+        </inline>
       
       
       </inlines>
@@ -81,6 +127,7 @@
         <item name="HIDDEN"         value="0x00000001" />
         <item name="LAYOUT"         value="0x00000002" />
         <item name="DRAW"           value="0x00000004" />
+        <item name="RECALC"         value="0x00000008" />
       </define>
 
       <define id="AQDG_OBJECT_OPTIONS" prefix="AQDG_OBJECT_OPTIONS_">
@@ -188,6 +235,20 @@
       </member>
 
 
+      <member name="contentWidth" type="int" maxlen="8" >
+        <default>0</default>
+        <preset>0</preset>
+        <access>public</access>
+      </member>
+
+
+      <member name="contentHeight" type="int" maxlen="8" >
+        <default>0</default>
+        <preset>0</preset>
+        <access>public</access>
+      </member>
+
+
       <member name="flags" type="uint32_t" maxlen="8">
         <default>0</default>
         <preset>0</preset>
@@ -208,19 +269,11 @@
 
     <virtualFns>
 
-      <fn name="getDefaultWidth" location="post" >
+      <fn name="calcContentDims" location="post" >
         <descr></descr>
         
         <access>public</access>
-        <defaultReturnValue>1</defaultReturnValue>
+        <defaultReturnValue>0</defaultReturnValue>
-        <returnType>int</returnType>
-      </fn>
-
-      <fn name="getDefaultHeight" location="post" >
-        <descr></descr>
-        
-        <access>public</access>
-        <defaultReturnValue>1</defaultReturnValue>
         <returnType>int</returnType>
       </fn>