From a3f183b6e89dd0cde9db1175e1844e9dbb9a21b0 Mon Sep 17 00:00:00 2001
From: Pietro Gagliardi <pietro10@mac.com>
Date: Tue, 19 May 2015 12:32:14 -0400
Subject: [PATCH] Started implementing uiSpinbox on Windows.

---
 redo/test/page2.c          |   2 +-
 redo/ui.idl                |   2 +-
 redo/windows/GNUmakeinc.mk |   1 +
 redo/windows/spinbox.c     | 105 +++++++++++++++++++++++++++++++++++++
 4 files changed, 108 insertions(+), 2 deletions(-)
 create mode 100644 redo/windows/spinbox.c

diff --git a/redo/test/page2.c b/redo/test/page2.c
index 560d0b2b..43e41267 100644
--- a/redo/test/page2.c
+++ b/redo/test/page2.c
@@ -106,7 +106,7 @@ uiBox *makePage2(void)
 	button = uiNewButton(moveOutText);
 	uiButtonOnClicked(button, movePage1, NULL);
 	uiBoxAppend(hbox, uiControl(button), 0);
-	uiBoxAppend(hbox, uiControl(uiNewSpinbox()), 0);
+	uiBoxAppend(hbox, uiControl(uiNewSpinbox()), 1);
 	uiBoxAppend(page2, uiControl(hbox), 0);
 	moveBack = 0;
 
diff --git a/redo/ui.idl b/redo/ui.idl
index 4f2951a3..1fc94fec 100644
--- a/redo/ui.idl
+++ b/redo/ui.idl
@@ -143,7 +143,7 @@ func NewGroup(text *const char) *Group;
 
 interface Spinbox from Control {
 };
-func NewSpinbox(void);
+func NewSpinbox(void) *Spinbox;
 
 interface Menu {
 	func AppendItem(name *const char) *MenuItem;
diff --git a/redo/windows/GNUmakeinc.mk b/redo/windows/GNUmakeinc.mk
index 9136323a..e70db6f7 100644
--- a/redo/windows/GNUmakeinc.mk
+++ b/redo/windows/GNUmakeinc.mk
@@ -15,6 +15,7 @@ osCFILES = \
 	windows/menu.c \
 	windows/parent.c \
 	windows/resize.c \
+	windows/spinbox.c \
 	windows/tab.c \
 	windows/text.c \
 	windows/util.c \
diff --git a/redo/windows/spinbox.c b/redo/windows/spinbox.c
new file mode 100644
index 00000000..4095f07c
--- /dev/null
+++ b/redo/windows/spinbox.c
@@ -0,0 +1,105 @@
+// 8 april 2015
+#include "uipriv_windows.h"
+
+struct spinbox {
+	uiSpinbox s;
+	HWND hwnd;
+	HWND updown;
+	void (*baseResize)(uiControl *, intmax_t, intmax_t, intmax_t, intmax_t, uiSizing *);
+};
+
+static BOOL onWM_COMMAND(uiControl *c, WORD code, LRESULT *lResult)
+{
+	return FALSE;
+}
+
+static BOOL onWM_NOTIFY(uiControl *c, NMHDR *nm, LRESULT *lResult)
+{
+	return FALSE;
+}
+
+static void onDestroy(void *data)
+{
+	struct spinbox *s = (struct spinbox *) data;
+
+	uiFree(s);
+}
+
+// from http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
+#define entryWidth 107 /* this is actually the shorter progress bar width, but Microsoft only indicates as wide as necessary */
+#define entryHeight 14
+
+static void spinboxPreferredSize(uiControl *c, uiSizing *d, intmax_t *width, intmax_t *height)
+{
+	*width = uiWindowsDlgUnitsToX(entryWidth, d->Sys->BaseX);
+	*height = uiWindowsDlgUnitsToY(entryHeight, d->Sys->BaseY);
+}
+
+// an up-down control will only properly position itself the first time
+// stupidly, there are no messages to force a size calculation, nor can I seem to reset the buddy window to force a new position
+// alas, we have to make a new up/down control each time :(
+// TODO will we need to store a copy of the current position and range for this?
+static void recreateUpDown(struct spinbox *s)
+{
+	HWND parent;
+
+	parent = GetAncestor(s->hwnd, GA_PARENT);
+	if (s->updown != NULL)
+		if (DestroyWindow(s->updown) == 0)
+			logLastError("error destroying old updown in recreateUpDown()");
+	s->updown = CreateWindowExW(0,
+		UPDOWN_CLASSW, L"",
+		// no WS_VISIBLE; we set visibility ourselves
+		WS_CHILD | UDS_ALIGNRIGHT | UDS_ARROWKEYS | UDS_HOTTRACK | UDS_NOTHOUSANDS | UDS_SETBUDDYINT,
+		// this is important; it's necessary for autosizing to work
+		0, 0, 0, 0,
+		parent, NULL, hInstance, NULL);
+	if (s->updown == NULL)
+		logLastError("error creating updown in recreateUpDown()");
+	SendMessageW(s->updown, UDM_SETBUDDY, (WPARAM) (s->hwnd), 0);
+	// TODO
+	SendMessageW(s->updown, UDM_SETRANGE32, 0, 100);
+	SendMessageW(s->updown, UDM_SETPOS32, 0, 0);
+	if (uiControlContainerVisible(uiControl(s)))
+		ShowWindow(s->updown, SW_SHOW);
+}
+
+static void spinboxResize(uiControl *c, intmax_t x, intmax_t y, intmax_t width, intmax_t height, uiSizing *d)
+{
+	struct spinbox *s = (struct spinbox *) c;
+
+	(*(s->baseResize))(uiControl(s), x, y, width, height, d);
+	recreateUpDown(s);
+}
+
+uiSpinbox *uiNewSpinbox(void)
+{
+	struct spinbox *s;
+	uiWindowsMakeControlParams p;
+
+	s = uiNew(struct spinbox);
+	uiTyped(s)->Type = uiTypeSpinbox();
+
+	p.dwExStyle = WS_EX_CLIENTEDGE;
+	p.lpClassName = L"edit";
+	p.lpWindowName = L"";
+	p.dwStyle = ES_AUTOHSCROLL | ES_LEFT | ES_NOHIDESEL | ES_NUMBER | WS_TABSTOP;
+	p.hInstance = hInstance;
+	p.lpParam = NULL;
+	p.useStandardControlFont = TRUE;
+	p.onWM_COMMAND = onWM_COMMAND;
+	p.onWM_NOTIFY = onWM_NOTIFY;
+	p.onDestroy = onDestroy;
+	p.onDestroyData = s;
+	uiWindowsMakeControl(uiControl(s), &p);
+
+	s->hwnd = (HWND) uiControlHandle(uiControl(s));
+
+	recreateUpDown(s);
+
+	uiControl(s)->PreferredSize = spinboxPreferredSize;
+	s->baseResize = uiControl(s)->Resize;
+	uiControl(s)->Resize = spinboxResize;
+
+	return uiSpinbox(s);
+}