From 10ec52d8db408d391c25bb0b7a9a8ec8f33f94b1 Mon Sep 17 00:00:00 2001
From: Pietro Gagliardi <pietro10@mac.com>
Date: Thu, 26 Nov 2015 12:09:12 -0500
Subject: [PATCH] Added uiTab to the WPF system.

---
 wpf/libui.msbuild |   1 +
 wpf/main.cpp      |   1 +
 wpf/tab.cpp       | 125 ++++++++++++++++++++++++++++++++++++++++++++++
 wpf/xtest.go      |  15 +++++-
 4 files changed, 141 insertions(+), 1 deletion(-)
 create mode 100644 wpf/tab.cpp

diff --git a/wpf/libui.msbuild b/wpf/libui.msbuild
index a65e6249..bd602bdf 100755
--- a/wpf/libui.msbuild
+++ b/wpf/libui.msbuild
@@ -85,6 +85,7 @@
 		<CompileAsManaged>false</CompileAsManaged>
 	</ClCompile>
 	<ClCompile Include="main.cpp" />
+	<ClCompile Include="tab.cpp" />
 	<ClCompile Include="text.cpp" />
 	<ClCompile Include="util.c">
 		<CompileAsManaged>false</CompileAsManaged>
diff --git a/wpf/main.cpp b/wpf/main.cpp
index 68b17b57..030c7baf 100644
--- a/wpf/main.cpp
+++ b/wpf/main.cpp
@@ -21,5 +21,6 @@ void uiMain(void)
 
 void uiQuit(void)
 {
+	// TODO this executes immediately, not later
 	(*app)->Shutdown();
 }
diff --git a/wpf/tab.cpp b/wpf/tab.cpp
new file mode 100644
index 00000000..052cceb3
--- /dev/null
+++ b/wpf/tab.cpp
@@ -0,0 +1,125 @@
+// 26 november 2015
+#include "uipriv_wpf.hpp"
+
+// TODO save child alignments?
+
+using namespace System::Collections::Generic;
+
+ref class tabPage {
+public:
+	TabItem ^item;
+	uiControl *c;
+	Border ^border;		// see uiTabSetMargined()
+	int margined;
+};
+
+struct uiTab {
+	uiWindowsControl c;
+	gcroot<TabControl ^> *tab;
+	gcroot<List<tabPage ^> ^> *pages;
+};
+
+static void onDestroy(uiTab *);
+
+uiWindowsDefineControlWithOnDestroy(
+	uiTab,								// type name
+	uiTabType,							// type function
+	tab,									// handle
+	onDestroy(hthis);						// on destroy
+)
+
+static void onDestroy(uiTab *t)
+{
+	List<tabPage ^> ^pages;
+
+	pages = *(t->pages);
+	while (pages->Count != 0) {
+		pages[0]->border->Child = nullptr;
+		uiControlSetParent(pages[0]->c, NULL);
+		uiControlDestroy(pages[0]->c);
+		pages->RemoveAt(0);
+		(*(t->tab))->Items->RemoveAt(0);
+	}
+	delete t->pages;
+}
+
+void uiTabAppend(uiTab *t, const char *name, uiControl *c)
+{
+	uiTabInsertAt(t, name, (*(t->pages))->Count, c);
+}
+
+void uiTabInsertAt(uiTab *t, const char *name, uintmax_t before, uiControl *c)
+{
+	tabPage ^p;
+
+	p = gcnew tabPage();
+	p->c = c;
+	p->border = gcnew Border();
+	p->item = gcnew TabItem();
+
+	p->border->Child = genericHandle(p->c);
+	p->item->Content = p->border;
+	p->item->Header = fromUTF8(name);
+
+	uiControlSetParent(p->c, uiControl(t));
+	(*(t->tab))->Items->Insert(before, p->item);
+	(*(t->pages))->Insert(before, p);
+	uiControlSetParent(p->c, NULL);
+}
+
+void uiTabDelete(uiTab *t, uintmax_t index)
+{
+	tabPage ^p;
+	List<tabPage ^> ^pages;
+
+	pages = (*(t->pages));
+	p = pages[index];
+	pages->RemoveAt(index);
+	(*(t->tab))->Items->RemoveAt(index);
+	p->border->Child = nullptr;
+}
+
+uintmax_t uiTabNumPages(uiTab *t)
+{
+	return (*(t->pages))->Count;
+}
+
+int uiTabMargined(uiTab *t, uintmax_t page)
+{
+	List<tabPage ^> ^pages;
+
+	pages = (*(t->pages));
+	return pages[page]->margined;
+}
+
+void uiTabSetMargined(uiTab *t, uintmax_t page, int margined)
+{
+	List<tabPage ^> ^pages;
+
+	pages = (*(t->pages));
+	pages[page]->margined = margined;
+	// TabItem margins/padding do NOT work the way we want them to
+	// we have to use a Border here too
+	// TODO Padding?
+	if (pages[page]->margined)
+		pages[page]->border->Margin = Thickness(10, 10, 10, 10);
+	else
+		pages[page]->border->Margin = Thickness(0, 0, 0, 0);
+}
+
+uiTab *uiNewTab(void)
+{
+	uiTab *t;
+
+	t = (uiTab *) uiNewControl(uiTabType());
+
+	t->tab = new gcroot<TabControl ^>();
+	*(t->tab) = gcnew TabControl();
+
+	t->pages = new gcroot<List<tabPage ^> ^>();
+	*(t->pages) = gcnew List<tabPage ^>();
+
+	uiWindowsFinishNewControl(t, uiTab, tab);
+
+	return t;
+}
diff --git a/wpf/xtest.go b/wpf/xtest.go
index 06915757..dfa42afe 100644
--- a/wpf/xtest.go
+++ b/wpf/xtest.go
@@ -14,6 +14,9 @@ var uiWindowSetMargined = libui.NewProc("uiWindowSetMargined")
 var uiNewVerticalBox = libui.NewProc("uiNewVerticalBox")
 var uiBoxAppend = libui.NewProc("uiBoxAppend")
 var uiBoxSetPadded = libui.NewProc("uiBoxSetPadded")
+var uiNewTab = libui.NewProc("uiNewTab")
+var uiTabAppend = libui.NewProc("uiTabAppend")
+var uiTabSetMargined = libui.NewProc("uiTabSetMargined")
 var uiControlShow = libui.NewProc("uiControlShow")
 var uiMain = libui.NewProc("uiMain")
 var uiQuit = libui.NewProc("uiQuit")
@@ -34,6 +37,7 @@ func main() {
 		uintptr(unsafe.Pointer(&s[0])),
 		320, 240, 0)
 	uiWindowOnClosing.Call(w, syscall.NewCallbackCDecl(onClosing), 0)
+	tab, _, _ := uiNewTab.Call()
 	box, _, _ := uiNewVerticalBox.Call()
 	btn, _, _ := uiNewButton.Call(
 		uintptr(unsafe.Pointer(&s[0])))
@@ -50,7 +54,16 @@ func main() {
 	btn, _, _ = uiNewButton.Call(
 		uintptr(unsafe.Pointer(&s[0])))
 	uiBoxAppend.Call(box, btn, 0)
-	uiWindowSetChild.Call(w, box)
+	uiWindowSetChild.Call(w, tab)
+	uiTabAppend.Call(tab,
+		uintptr(unsafe.Pointer(&s[0])),
+		box)
+	uiTabSetMargined.Call(tab, 0, 1)
+	btn, _, _ = uiNewButton.Call(
+		uintptr(unsafe.Pointer(&s[0])))
+	uiTabAppend.Call(tab,
+		uintptr(unsafe.Pointer(&s[0])),
+		btn)
 	uiBoxSetPadded.Call(box, 1)
 	uiWindowSetMargined.Call(w, 1)
 	uiControlShow.Call(w)