1

utils/mxtk/mxslider.cpp

@@ -0,0 +1,137 @@
+//
+//                 mxToolKit (c) 1999 by Mete Ciragan
+//
+// file:           mxSlider.cpp
+// implementation: Win32 API
+// last modified:  Mar 18 1999, Mete Ciragan
+// copyright:      The programs and associated files contained in this
+//                 distribution were developed by Mete Ciragan. The programs
+//                 are not in the public domain, but they are freely
+//                 distributable without licensing fees. These programs are
+//                 provided without guarantee or warrantee expressed or
+//                 implied.
+//
+#include "mxtk/mxSlider.h"
+#include <windows.h>
+#include <commctrl.h>
+
+
+
+class mxSlider_i
+{
+public:
+	int dummy;
+};
+
+
+
+mxSlider::mxSlider (mxWindow *parent, int x, int y, int w, int h, int id, int style)
+: mxWidget (parent, x, y, w, h)
+{
+	if (!parent)
+		return;
+
+	DWORD dwStyle = WS_CHILD | WS_VISIBLE;
+	HWND hwndParent = (HWND) ((mxWidget *) parent)->getHandle ();
+
+	if (style == Horizontal)
+		dwStyle = WS_CHILD | WS_VISIBLE | TBS_HORZ;
+	else if (style == Vertical)
+		dwStyle = WS_CHILD | WS_VISIBLE | TBS_VERT;
+
+	void *handle = (void *) CreateWindowEx (0, TRACKBAR_CLASS, "", dwStyle,
+				x, y, w, h, hwndParent,
+				(HMENU) id, (HINSTANCE) GetModuleHandle (NULL), NULL);
+	
+	SendMessage ((HWND) handle, WM_SETFONT, (WPARAM) (HFONT) GetStockObject (ANSI_VAR_FONT), MAKELPARAM (TRUE, 0));
+	SetWindowLong ((HWND) handle, GWL_USERDATA, (LONG) this);
+
+	setHandle (handle);
+	setType (MX_SLIDER);
+	setParent (parent);
+	setId (id);
+}
+
+
+
+mxSlider::~mxSlider ()
+{
+}
+
+
+
+void
+mxSlider::setValue (float value)
+{
+	int ivalue = (int)((((value - m_min) / (m_max - m_min)) * m_ticks) + 0.5);
+	SendMessage ((HWND) getHandle (), TBM_SETPOS, (WPARAM) true, (LPARAM) ivalue);
+}
+	
+
+
+void
+mxSlider::setRange (float min, float max, int ticks)
+{
+	m_min = min;
+	m_max = max;
+	m_ticks = ticks;
+	SendMessage ((HWND) getHandle (), TBM_SETRANGE, (WPARAM) true, (LPARAM) MAKELONG(0, ticks));
+}
+
+
+
+void
+mxSlider::setSteps (int line, int page)
+{
+	SendMessage ((HWND) getHandle (), TBM_SETLINESIZE, 0, (LPARAM) line);
+	SendMessage ((HWND) getHandle (), TBM_SETPAGESIZE, 0, (LPARAM) page);
+}
+
+
+
+float
+mxSlider::getValue () const
+{
+	int ivalue = SendMessage ((HWND) getHandle (), TBM_GETPOS, 0, 0L);
+	return (ivalue / (float)m_ticks) * (m_max - m_min) + m_min;
+}
+
+
+float
+mxSlider::getTrackValue ( int ivalue ) const
+{
+	return (ivalue / (float)m_ticks) * (m_max - m_min) + m_min;
+}
+
+
+float
+mxSlider::getMinValue () const
+{
+	return m_min;
+	// return (int) SendMessage ((HWND) getHandle (), TBM_GETRANGEMIN, 0, 0L);
+}
+
+
+
+float
+mxSlider::getMaxValue () const
+{
+	return m_max;
+	// return (int) SendMessage ((HWND) getHandle (), TBM_GETRANGEMAX, 0, 0L);
+}
+
+
+
+int
+mxSlider::getLineStep () const
+{
+	return (int) SendMessage ((HWND) getHandle (), TBM_GETLINESIZE, 0, 0L);
+}
+
+
+
+int
+mxSlider::getPageStep () const
+{
+	return (int) SendMessage ((HWND) getHandle (), TBM_GETPAGESIZE, 0, 0L);
+}