Initial community commit

Src/Plugins/General/gen_ml/scrollwnd.h

@@ -0,0 +1,220 @@
+#ifndef _SCROLLWND_H
+#define _SCROLLWND_H
+
+/* minimum size of scrollbar before inserted buttons are 
+   hidden to make room when the window is sized too small */
+#define MIN_COOLSB_SIZE  24
+
+/* min size of scrollbar when resizing a button, before the 
+   resize is stopped because the scrollbar has gotten too small */
+#define MINSCROLLSIZE   50		
+
+/* a normal scrollbar "snaps" its scroll-thumb back into position if
+   you move the mouse too far away from the window, whilst you are
+   dragging the thumb, that is. #undeffing this results in the thumb
+   never snapping back into position, no matter how far away you move
+   the mouse */
+#define SNAP_THUMB_BACK
+
+/* distance (in pixels) the mouse must move away from the thumb 
+   during tracking to cause the thumb bar to snap back to its 
+   starting place. Has no effect unless SNAP_THUMB_BACK is defined */
+#define THUMBTRACK_SNAPDIST 128
+
+
+#include <windows.h>
+
+// To complement the exisiting SB_HORZ, SB_VERT, SB_BOTH
+// scrollbar identifiers
+#define COOLSB_NONE (-1)
+#define SB_INSBUT	(-2)
+
+//
+//	Arrow size defines
+//
+#define SYSTEM_METRIC (-1)
+
+//
+// general scrollbar styles
+//
+// use the standard ESB_DISABLE_xxx flags to represent the
+// enabled / disabled states. (defined in winuser.h)
+//
+#define CSBS_THUMBALWAYS		4
+#define CSBS_VISIBLE			8
+
+//cool scrollbar styles for Flat scrollbars
+#define CSBS_NORMAL			0
+#define CSBS_FLAT			1
+#define CSBS_HOTTRACKED		2
+
+//
+//	Button mask flags for indicating which members of SCROLLBUT
+//	to use during a button insertion / modification
+//	
+#define SBBF_TYPE			0x0001
+#define SBBF_ID				0x0002
+#define SBBF_PLACEMENT		0x0004
+#define SBBF_SIZE			0x0008
+#define SBBF_BITMAP			0x0010
+#define SBBF_ENHMETAFILE	0x0020
+//#define SBBF_OWNERDRAW		0x0040	//unused at present
+#define SBBF_CURSOR			0x0080
+#define SBBF_BUTMINMAX		0x0100
+#define SBBF_STATE			0x0200
+
+//button styles (states)
+#define SBBS_NORMAL			0
+#define SBBS_PUSHED			1
+#define SBBS_CHECKED		SBBS_PUSHED
+
+//
+// scrollbar button types
+//
+#define SBBT_PUSHBUTTON		1	//standard push button
+#define SBBT_TOGGLEBUTTON	2	//toggle button
+#define SBBT_FIXED			3	//fixed button (non-clickable)
+#define SBBT_FLAT			4	//blank area (flat, with border)
+#define SBBT_BLANK			5	//blank area (flat, no border)
+#define SBBT_DARK			6	//dark blank area (flat)
+#define SBBT_OWNERDRAW		7	//user draws the button via a WM_NOTIFY
+
+#define SBBT_MASK			0x1f	//mask off low 5 bits
+
+//button type modifiers
+#define SBBM_RECESSED		0x0020	//recessed when clicked (like Word 97)
+#define SBBM_LEFTARROW		0x0040
+#define SBBM_RIGHTARROW		0x0080
+#define SBBM_UPARROW		0x0100
+#define SBBM_DOWNARROW		0x0200
+#define SBBM_RESIZABLE		0x0400
+#define SBBM_TYPE2			0x0800
+#define SBBM_TYPE3			0x1000
+#define SBBM_TOOLTIPS		0x2000	//currently unused (define COOLSB_TOOLTIPS in userdefs.h)
+
+//button placement flags
+#define SBBP_LEFT	1
+#define SBBP_RIGHT  2
+#define SBBP_TOP	1	//3
+#define SBBP_BOTTOM 2	//4
+
+
+//
+//	Button command notification codes
+//	for sending with a WM_COMMAND message
+//
+#define CSBN_BASE	0
+#define CSBN_CLICKED (1 + CSBN_BASE)
+#define CSBN_HILIGHT (2 + CSBN_BASE)
+
+//
+//	Minimum size in pixels of a scrollbar thumb
+//
+#define MINTHUMBSIZE_NT4   9
+#define MINTHUMBSIZE_2000  7
+
+//define some more hittest values for our cool-scrollbar
+#define HTSCROLL_LEFT		(SB_LINELEFT)
+#define HTSCROLL_RIGHT		(SB_LINERIGHT)
+#define HTSCROLL_UP			(SB_LINEUP)
+#define HTSCROLL_DOWN		(SB_LINEDOWN)
+#define HTSCROLL_THUMB		(SB_THUMBTRACK)
+#define HTSCROLL_PAGEGUP	(SB_PAGEUP)
+#define HTSCROLL_PAGEGDOWN	(SB_PAGEDOWN)
+#define HTSCROLL_PAGELEFT	(SB_PAGELEFT)
+#define HTSCROLL_PAGERIGHT	(SB_PAGERIGHT)
+
+#define HTSCROLL_NONE		(-1)
+#define HTSCROLL_NORMAL		(-1)
+
+#define HTSCROLL_INSERTED	(128)
+#define HTSCROLL_PRE		(32 | HTSCROLL_INSERTED)
+#define HTSCROLL_POST		(64 | HTSCROLL_INSERTED)
+
+//
+//	SCROLLBAR datatype. There are two of these structures per window
+//
+#define SCROLLBAR_LISTVIEW 1 // scrollbar is for a listview
+typedef struct 
+{
+	UINT		fScrollFlags;		//flags
+	BOOL		fScrollVisible;		//if this scrollbar visible?
+	SCROLLINFO	scrollInfo;			//positional data (range, position, page size etc)
+	
+	int			nArrowLength;		//perpendicular size (height of a horizontal, width of a vertical)
+	int			nArrowWidth;		//parallel size (width of horz, height of vert)
+
+	//data for inserted buttons
+	int			nButSizeBefore;		//size to the left / above the bar
+	int			nButSizeAfter;		//size to the right / below the bar
+
+	BOOL		fButVisibleBefore;	//if the buttons to the left are visible
+	BOOL		fButVisibleAfter;	//if the buttons to the right are visible
+
+	int			nBarType;			//SB_HORZ / SB_VERT
+
+	UINT		fFlatScrollbar;		//do we display flat scrollbars?
+	int			nMinThumbSize;
+
+	int flags;
+
+} SCROLLBAR;
+
+//
+//	PRIVATE INTERNAL FUNCTIONS
+//
+#define COOLSB_TIMERID1			65533		//initial timer
+#define COOLSB_TIMERID2			65534		//scroll message timer
+#define COOLSB_TIMERID3			-14			//mouse hover timer
+#define COOLSB_TIMERINTERVAL1	300
+#define COOLSB_TIMERINTERVAL2	55
+#define COOLSB_TIMERINTERVAL3	20			//mouse hover time
+
+//
+//	direction: 0 - same axis as scrollbar (i.e.  width of a horizontal bar)
+//             1 - perpendicular dimesion (i.e. height of a horizontal bar)
+//
+#define SM_CXVERTSB 1
+#define SM_CYVERTSB 0
+#define SM_CXHORZSB 0
+#define SM_CYHORZSB 1
+#define SM_SCROLL_WIDTH	1
+#define SM_SCROLL_LENGTH 0
+
+class ScrollWnd {
+public:
+  ScrollWnd(HWND hwnd, int flags=0);
+  ~ScrollWnd();
+
+  void update();
+  
+  HWND m_hwnd;
+
+	UINT bars;				//which of the scrollbars do we handle? SB_VERT / SB_HORZ / SB_BOTH
+	WNDPROC oldproc;			//old window procedure to call for every message
+	BOOL	fWndUnicode;		
+
+	SCROLLBAR sbarHorz;		//one scrollbar structure each for 
+	SCROLLBAR sbarVert;		//the horizontal and vertical scrollbars
+
+	BOOL fThumbTracking;	// are we currently thumb-tracking??
+	BOOL fLeftScrollbar;	// support the WS_EX_LEFTSCROLLBAR style
+
+	//size of the window borders
+	int cxLeftEdge, cxRightEdge;
+	int cyTopEdge,  cyBottomEdge;
+
+	// To prevent calling original WindowProc in response
+	// to our own temporary style change (fixes TreeView problem)
+	BOOL bPreventStyleChange;
+
+  void updatesb(int fnBar, BOOL *fRecalcFrame);
+  void disableHorzScroll();
+
+  //int setScrollInfo(int fnBar, LPSCROLLINFO lpsi, BOOL fRedraw);
+
+  int m_disable_hscroll;
+  int m_xp_theme_disabled;
+};
+
+#endif