# HG changeset patch
# User Olaf Wintermann <olaf.wintermann@gmail.com>
# Date 1406049344 -7200
# Node ID 62205699cd0e3baa513ce2d1d2a4e2840dc74273
# Parent  25e5390cce418edad053d9fc3758c6b17b18cd0e
improved motif tabs

diff -r 25e5390cce41 -r 62205699cd0e application/main.c
--- a/application/main.c	Tue Jul 22 09:51:17 2014 +0200
+++ b/application/main.c	Tue Jul 22 19:15:44 2014 +0200
@@ -136,6 +136,13 @@
     ui_textarea_nv(tab2, "text");
     ui_set_document(tab2, doc2);
     
+    UiObject *tab3 = ui_document_tab(view);
+    Document *doc3 = ui_document_new(1024);
+    UiContext *ctx3 = ui_document_context(doc3);
+    ui_document_regtext(doc3, "text", &doc3->text);
+    ui_textarea_nv(tab3, "text");
+    ui_set_document(tab3, doc3);
+    
     ui_show(window);
     ui_main();
     
diff -r 25e5390cce41 -r 62205699cd0e ui/common/context.c
--- a/ui/common/context.c	Tue Jul 22 09:51:17 2014 +0200
+++ b/ui/common/context.c	Tue Jul 22 19:15:44 2014 +0200
@@ -131,7 +131,9 @@
         }
     }
     
-    docctx->obj->ctx->document = NULL;
+    if(docctx->obj) {
+        docctx->obj->ctx->document = NULL;
+    }
     
     docctx->obj = NULL;
 }
diff -r 25e5390cce41 -r 62205699cd0e ui/motif/container.c
--- a/ui/motif/container.c	Tue Jul 22 09:51:17 2014 +0200
+++ b/ui/motif/container.c	Tue Jul 22 19:15:44 2014 +0200
@@ -98,7 +98,7 @@
     XtSetArg(args[3], XmNleftAttachment, XmATTACH_FORM);
     XtSetArg(args[4], XmNrightAttachment, XmATTACH_FORM);
     XtSetArg(args[5], XmNtopAttachment, XmATTACH_FORM);
-    Widget tabbar = XmCreateRowColumn(tabview, "toolbar", args, 6);
+    Widget tabbar = XmCreateForm(tabview, "toolbar", args, 6);
     XtManageChild(tabbar);
     
     XtSetArg(args[0], XmNleftAttachment, XmATTACH_FORM);
@@ -155,34 +155,88 @@
     content->container = ui_frame_container(content, frame);
     content->next = NULL;
     
-    // add tab button 
+    // add tab button
+    v->tabs = ucx_list_append_a(view->ctx->mempool->allocator, v->tabs, tab);
+    
     XmString label = XmStringCreateLocalized("tab");
     XtSetArg(args[0], XmNlabelString, label);
     XtSetArg(args[1], XmNshadowThickness, 1);
     XtSetArg(args[2], XmNtraversalOn, FALSE);
-    Widget button = XmCreatePushButton(v->tabbar, "tab_button", args, 3);
-    XtManageChild(button);
-    XtAddCallback(
-        button,
-        XmNactivateCallback,
-        (XtCallbackProc)ui_tab_button_callback,
-        tab);
+    XtSetArg(args[3], XmNtopAttachment, XmATTACH_FORM);
+    XtSetArg(args[4], XmNbottomAttachment, XmATTACH_FORM);
+    XtSetArg(args[5], XmNhighlightThickness, 0);
+    XtSetArg(args[6], XmNindicatorOn, XmINDICATOR_NONE);
     
+    Widget button = XmCreateToggleButton(v->tabbar, "tab_button", args, 7);
     tab->tabbedpane = v;
     tab->content = content;
     tab->tab_button = button;
     
-    v->tabs = ucx_list_append_a(view->ctx->mempool->allocator, v->tabs, tab);
+    // layout
+    int is_first = 1;
+    size_t count = ucx_list_size(v->tabs);
+    int part = 100 / count;
+    int pos = 0;
+    int i = 0;
+    UCX_FOREACH(elm, v->tabs) {
+        UiTab *tt = elm->data;
+        if(is_first) {
+            XtVaSetValues(
+                    tt->tab_button,
+                    XmNleftAttachment,
+                    XmATTACH_FORM,
+                    XmNrightAttachment,
+                    XmATTACH_POSITION,
+                    XmNrightPosition,
+                    pos + part,
+                    NULL);
+            is_first = FALSE;
+        } else if(i < count - 1) {
+            XtVaSetValues(
+                    tt->tab_button,
+                    XmNleftAttachment,
+                    XmATTACH_POSITION,
+                    XmNleftPosition,
+                    pos,
+                    XmNrightAttachment,
+                    XmATTACH_POSITION,
+                    XmNrightPosition,
+                    pos + part,
+                    NULL);
+        } else {
+            XtVaSetValues(
+                    tt->tab_button,
+                    XmNleftAttachment,
+                    XmATTACH_POSITION,
+                    XmNleftPosition,
+                    pos,
+                    XmNrightAttachment,
+                    XmATTACH_FORM,
+                    NULL);
+        }
+        pos += part;
+        i++;
+    }
+    
+    
+    XtManageChild(button);
+    XtAddCallback(
+        button,
+        XmNvalueChangedCallback,
+        (XtCallbackProc)ui_tab_button_callback,
+        tab);
+    
     v->current = tab;
     ui_change_tab(v, tab);
     
     return content;
 }
 
-void ui_tab_button_callback(Widget widget, UiTab *tab, XtPointer d) {
+void ui_tab_button_callback(Widget widget, UiTab *tab, XtPointer d) {  
     MotifTabbedPane *t = tab->tabbedpane;
     if(t->current) {
         XtUnmanageChild(t->current->content->widget);
+        XtVaSetValues(t->current->tab_button, XmNset, 0, NULL);
     }
     XtManageChild(tab->content->widget);