diff options
Diffstat (limited to 'plugins/Clist_nicer/src/coolscroll.cpp')
| -rw-r--r-- | plugins/Clist_nicer/src/coolscroll.cpp | 3060 |
1 files changed, 3060 insertions, 0 deletions
diff --git a/plugins/Clist_nicer/src/coolscroll.cpp b/plugins/Clist_nicer/src/coolscroll.cpp new file mode 100644 index 0000000000..1e8f5b98ff --- /dev/null +++ b/plugins/Clist_nicer/src/coolscroll.cpp @@ -0,0 +1,3060 @@ +/*
+ Cool Scrollbar Library Version 1.2
+
+ Module: coolscroll.c
+ Copyright (c) J Brown 2001
+
+ This code is freeware, however, you may not publish
+ this code elsewhere or charge any money for it. This code
+ is supplied as-is. I make no guarantees about the suitability
+ of this code - use at your own risk.
+
+ It would be nice if you credited me, in the event
+ that you use this code in a product.
+
+ VERSION HISTORY:
+
+ V1.2: TreeView problem fixed by Diego Tartara
+ Small problem in thumbsize calculation also fixed (thanks Diego!)
+
+ V1.1: Added support for Right-left windows
+ Changed calling convention of APIs to WINAPI (__stdcall)
+ Completely standalone (no need for c-runtime)
+ Now supports ALL windows with appropriate USER32.DLL patching
+ (you provide!!)
+
+ V1.0: Apr 2001: Initial Version
+
+ IMPORTANT:
+ This whole library is based around code for a horizontal scrollbar.
+ All "vertical" scrollbar drawing / mouse interaction uses the
+ horizontal scrollbar functions, but uses a trick to convert the vertical
+ scrollbar coordinates into horizontal equivelants. When I started this project,
+ I quickly realised that the code for horz/vert bars was IDENTICAL, apart
+ from the fact that horizontal code uses left/right coords, and vertical code
+ uses top/bottom coords. On entry to a "vertical" drawing function, for example,
+ the coordinates are "rotated" before the horizontal function is called, and
+ then rotated back once the function has completed. When something needs to
+ be drawn, the coords are converted back again before drawing.
+
+ This trick greatly reduces the amount of code required, and makes
+ maintanence much simpler. This way, only one function is needed to draw
+ a scrollbar, but this can be used for both horizontal and vertical bars
+ with careful thought.
+*/
+
+#include "stdafx.h"
+#include "coolscroll.h"
+#include "userdefs.h"
+#include "coolsb_internal.h"
+
+//define some values if the new version of common controls
+//is not available.
+#ifndef NM_CUSTOMDRAW
+#define NM_CUSTOMDRAW (NM_FIRST-12)
+#define CDRF_DODEFAULT 0x0000
+#define CDRF_SKIPDEFAULT 0x0004
+#define CDDS_PREPAINT 0x0001
+#define CDDS_POSTPAINT 0x0002
+#endif
+
+//
+// Special thumb-tracking variables
+//
+//
+static UINT uCurrentScrollbar = COOLSB_NONE; //SB_HORZ / SB_VERT
+static UINT uCurrentScrollPortion = HTSCROLL_NONE;
+static UINT uCurrentButton = 0;
+
+static RECT rcThumbBounds; //area that the scroll thumb can travel in
+static int nThumbSize; //(pixels)
+static int nThumbPos; //(pixels)
+static int nThumbMouseOffset; //(pixels)
+static int nLastPos = -1; //(scrollbar units)
+static int nThumbPos0; //(pixels) initial thumb position
+
+//
+// Temporary state used to auto-generate timer messages
+//
+static UINT_PTR uMouseOverId = 0;
+static UINT uMouseOverScrollbar = COOLSB_NONE;
+static UINT uHitTestPortion = HTSCROLL_NONE;
+static UINT uLastHitTestPortion = HTSCROLL_NONE;
+static RECT MouseOverRect;
+
+static UINT uScrollTimerMsg = 0;
+static UINT uScrollTimerPortion = HTSCROLL_NONE;
+static UINT_PTR uScrollTimerId = 0;
+static HWND hwndCurCoolSB = 0;
+
+extern int CustomDrawScrollBars(NMCSBCUSTOMDRAW *nmcsbcd);
+
+LRESULT CALLBACK CoolSBWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);
+
+//
+// Provide this so there are NO dependencies on CRT
+//
+static void CoolSB_ZeroMemory(void *ptr, DWORD bytes)
+{
+ BYTE *bptr = (BYTE *)ptr;
+
+ while(bytes--) *bptr++ = 0;
+}
+
+BOOL WINAPI CoolSB_IsThumbTracking(HWND hwnd)
+{
+ SCROLLWND *sw;
+
+ if ((sw = GetScrollWndFromHwnd(hwnd)) == NULL)
+ return FALSE;
+ else
+ return sw->fThumbTracking;
+}
+
+//
+// swap the rectangle's x coords with its y coords
+//
+static void __stdcall RotateRect(RECT *rect)
+{
+ int temp;
+ temp = rect->left;
+ rect->left = rect->top;
+ rect->top = temp;
+
+ temp = rect->right;
+ rect->right = rect->bottom;
+ rect->bottom = temp;
+}
+
+//
+// swap the coords if the scrollbar is a SB_VERT
+//
+static void __stdcall RotateRect0(SCROLLBAR *sb, RECT *rect)
+{
+ if (sb->nBarType == SB_VERT)
+ RotateRect(rect);
+}
+
+//
+// Calculate if the SCROLLINFO members produce
+// an enabled or disabled scrollbar
+//
+static BOOL IsScrollInfoActive(SCROLLINFO *si)
+{
+ if ((si->nPage > (UINT)si->nMax
+ || si->nMax <= si->nMin || si->nMax == 0))
+ return FALSE;
+ else
+ return TRUE;
+}
+
+//
+// Return if the specified scrollbar is enabled or not
+//
+static BOOL IsScrollbarActive(SCROLLBAR *sb)
+{
+ SCROLLINFO *si = &sb->scrollInfo;
+ if (((sb->fScrollFlags & ESB_DISABLE_BOTH) == ESB_DISABLE_BOTH) ||
+ !(sb->fScrollFlags & CSBS_THUMBALWAYS) && !IsScrollInfoActive(si))
+ return FALSE;
+ else
+ return TRUE;
+}
+
+//
+// Draw a standard scrollbar arrow
+//
+static int DrawScrollArrow(SCROLLBAR *sbar, HDC hdc, RECT *rect, UINT arrow, BOOL fMouseDown, BOOL fMouseOver)
+{
+ UINT ret;
+ UINT flags = arrow;
+
+ //HACKY bit so this routine can be called by vertical and horizontal code
+ if (sbar->nBarType == SB_VERT)
+ {
+ if (flags & DFCS_SCROLLLEFT) flags = flags & ~DFCS_SCROLLLEFT | DFCS_SCROLLUP;
+ if (flags & DFCS_SCROLLRIGHT) flags = flags & ~DFCS_SCROLLRIGHT | DFCS_SCROLLDOWN;
+ }
+
+ if (fMouseDown) flags |= (DFCS_FLAT | DFCS_PUSHED);
+
+#ifdef FLAT_SCROLLBARS
+ if (sbar->fFlatScrollbar != CSBS_NORMAL)
+ {
+ HDC hdcmem1, hdcmem2;
+ HBITMAP hbm1, oldbm1;
+ HBITMAP hbm2, oldbm2;
+ RECT rc;
+ int width, height;
+
+ rc = *rect;
+ width = rc.right-rc.left;
+ height = rc.bottom-rc.top;
+ SetRect(&rc, 0, 0, width, height);
+
+ //MONOCHROME bitmap to convert the arrow to black/white mask
+ hdcmem1 = CreateCompatibleDC(hdc);
+ hbm1 = CreateBitmap(width, height, 1, 1, NULL);
+ UnrealizeObject(hbm1);
+ oldbm1 = reinterpret_cast<HBITMAP>(SelectObject(hdcmem1, hbm1));
+
+
+ //NORMAL bitmap to draw the arrow into
+ hdcmem2 = CreateCompatibleDC(hdc);
+ hbm2 = CreateCompatibleBitmap(hdc, width, height);
+ UnrealizeObject(hbm2);
+ oldbm2 = reinterpret_cast<HBITMAP>(SelectObject(hdcmem2, hbm2));
+
+
+ flags = flags & ~DFCS_PUSHED | DFCS_FLAT; //just in case
+ DrawFrameControl(hdcmem2, &rc, DFC_SCROLL, flags);
+
+
+#ifndef HOT_TRACKING
+ if (fMouseDown)
+ {
+ //uncomment these to make the cool scrollbars
+ //look like the common controls flat scrollbars
+ //fMouseDown = FALSE;
+ //fMouseOver = TRUE;
+ }
+#endif
+ //draw a flat monochrome version of a scrollbar arrow (dark)
+ if (fMouseDown)
+ {
+ SetBkColor(hdcmem2, GetSysColor(COLOR_BTNTEXT));
+ BitBlt(hdcmem1, 0, 0, width, height, hdcmem2, 0, 0, SRCCOPY);
+ SetBkColor(hdc, 0x00ffffff);
+ SetTextColor(hdc, GetSysColor(COLOR_3DDKSHADOW));
+ BitBlt(hdc, rect->left, rect->top, width, height, hdcmem1, 0, 0, SRCCOPY);
+ }
+ //draw a flat monochrome version of a scrollbar arrow (grey)
+ else if (fMouseOver)
+ {
+ SetBkColor(hdcmem2, GetSysColor(COLOR_BTNTEXT));
+ FillRect(hdcmem1, &rc, reinterpret_cast<HBRUSH>(GetStockObject(WHITE_BRUSH)));
+ BitBlt(hdcmem1, 0, 0, width, height, hdcmem2, 0, 0, SRCINVERT);
+
+ SetBkColor(hdc, GetSysColor(COLOR_3DSHADOW));
+ SetTextColor(hdc, 0x00ffffff);
+ BitBlt(hdc, rect->left, rect->top, width, height, hdcmem1, 0, 0, SRCCOPY);
+ }
+ //draw the arrow normally
+ else
+ {
+ BitBlt(hdc, rect->left, rect->top, width, height, hdcmem2, 0, 0, SRCCOPY);
+ }
+
+ SelectObject(hdcmem1, oldbm1);
+ SelectObject(hdcmem2, oldbm2);
+ DeleteObject(hbm1);
+ DeleteObject(hbm2);
+ DeleteDC(hdcmem1);
+ DeleteDC(hdcmem2);
+
+ ret = 0;
+ }
+ else
+#endif
+ ret = DrawFrameControl(hdc, rect, DFC_SCROLL, flags);
+
+ return ret;
+}
+
+//
+// Return the size in pixels for the specified scrollbar metric,
+// for the specified scrollbar
+//
+static int GetScrollMetric(SCROLLBAR *sbar, int metric)
+{
+ if (sbar->nBarType == SB_HORZ)
+ {
+ if (metric == SM_CXHORZSB)
+ {
+ if (sbar->nArrowLength < 0)
+ return -sbar->nArrowLength * GetSystemMetrics(SM_CXHSCROLL);
+ else
+ return sbar->nArrowLength;
+ }
+ else
+ {
+ if (sbar->nArrowWidth < 0)
+ return -sbar->nArrowWidth * GetSystemMetrics(SM_CYHSCROLL);
+ else
+ return sbar->nArrowWidth;
+ }
+ }
+ else if (sbar->nBarType == SB_VERT)
+ {
+ if (metric == SM_CYVERTSB)
+ {
+ if (sbar->nArrowLength < 0)
+ return -sbar->nArrowLength * GetSystemMetrics(SM_CYVSCROLL);
+ else
+ return sbar->nArrowLength;
+ }
+ else
+ {
+ if (sbar->nArrowWidth < 0)
+ return -sbar->nArrowWidth * GetSystemMetrics(SM_CXVSCROLL);
+ else
+ return sbar->nArrowWidth;
+ }
+ }
+
+ return 0;
+}
+
+//
+//
+//
+static COLORREF GetSBForeColor(void)
+{
+ COLORREF c1 = GetSysColor(COLOR_3DHILIGHT);
+ COLORREF c2 = GetSysColor(COLOR_WINDOW);
+
+ if (c1 != 0xffffff && c1 == c2)
+ {
+ return GetSysColor(COLOR_BTNFACE);
+ }
+ else
+ {
+ return GetSysColor(COLOR_3DHILIGHT);
+ }
+}
+
+static COLORREF GetSBBackColor(void)
+{
+ return GetSysColor(COLOR_SCROLLBAR);
+}
+
+//
+// Paint a checkered rectangle, with each alternate
+// pixel being assigned a different colour
+//
+static void DrawCheckedRect(HDC hdc, RECT *rect, COLORREF fg, COLORREF bg)
+{
+ static WORD wCheckPat[8] =
+ {
+ 0xaaaa, 0x5555, 0xaaaa, 0x5555, 0xaaaa, 0x5555, 0xaaaa, 0x5555
+ };
+
+ HBITMAP hbmp;
+ HBRUSH hbr, hbrold;
+ COLORREF fgold, bgold;
+
+ hbmp = CreateBitmap(8, 8, 1, 1, wCheckPat);
+ hbr = CreatePatternBrush(hbmp);
+
+ UnrealizeObject(hbr);
+ SetBrushOrgEx(hdc, rect->left, rect->top, 0);
+
+ hbrold = (HBRUSH)SelectObject(hdc, hbr);
+
+ fgold = SetTextColor(hdc, fg);
+ bgold = SetBkColor(hdc, bg);
+
+ PatBlt(hdc, rect->left, rect->top,
+ rect->right - rect->left,
+ rect->bottom - rect->top,
+ PATCOPY);
+
+ SetBkColor(hdc, bgold);
+ SetTextColor(hdc, fgold);
+
+ SelectObject(hdc, hbrold);
+ DeleteObject(hbr);
+ DeleteObject(hbmp);
+}
+
+//
+// Fill the specifed rectangle using a solid colour
+//
+static void PaintRect(HDC hdc, RECT *rect, COLORREF color)
+{
+ COLORREF oldcol = SetBkColor(hdc, color);
+ ExtTextOutA(hdc, 0, 0, ETO_OPAQUE, rect, "", 0, NULL);
+ SetBkColor(hdc, oldcol);
+}
+
+//
+// Draw a simple blank scrollbar push-button. Can be used
+// to draw a push button, or the scrollbar thumb
+// drawflag - could set to BF_FLAT to make flat scrollbars
+//
+void DrawBlankButton(HDC hdc, const RECT *rect, UINT drawflag)
+{
+ RECT rc = *rect;
+
+#ifndef FLAT_SCROLLBARS
+ drawflag &= ~BF_FLAT;
+#endif
+
+ DrawEdge(hdc, &rc, EDGE_RAISED, BF_RECT | drawflag | BF_ADJUST);
+ FillRect(hdc, &rc, GetSysColorBrush(COLOR_BTNFACE));
+}
+
+//
+// Send a WM_VSCROLL or WM_HSCROLL message
+//
+static void SendScrollMessage(HWND hwnd, UINT scrMsg, UINT scrId, UINT pos)
+{
+ SendMessage(hwnd, scrMsg, MAKEWPARAM(scrId, pos), 0);
+}
+
+//
+// Calculate the screen coordinates of the area taken by
+// the horizontal scrollbar. Take into account the size
+// of the window borders
+//
+static BOOL GetHScrollRect(SCROLLWND *sw, HWND hwnd, RECT *rect)
+{
+ GetWindowRect(hwnd, rect);
+
+ if (sw->fLeftScrollbar)
+ {
+ rect->left += sw->cxLeftEdge + (sw->sbarVert.fScrollVisible ?
+ GetScrollMetric(&sw->sbarVert, SM_CXVERTSB) : 0);
+ rect->right -= sw->cxRightEdge;
+ }
+ else
+ {
+ rect->left += sw->cxLeftEdge; //left window edge
+
+ rect->right -= sw->cxRightEdge + //right window edge
+ (sw->sbarVert.fScrollVisible ?
+ GetScrollMetric(&sw->sbarVert, SM_CXVERTSB) : 0);
+ }
+
+ rect->bottom -= sw->cyBottomEdge; //bottom window edge
+
+ rect->top = rect->bottom -
+ (sw->sbarHorz.fScrollVisible ?
+ GetScrollMetric(&sw->sbarHorz, SM_CYHORZSB) : 0);
+
+ return TRUE;
+}
+
+//
+// Calculate the screen coordinates of the area taken by the
+// vertical scrollbar
+//
+static BOOL GetVScrollRect(SCROLLWND *sw, HWND hwnd, RECT *rect)
+{
+ GetWindowRect(hwnd, rect);
+ rect->top += sw->cyTopEdge; //top window edge
+
+ rect->bottom -= sw->cyBottomEdge +
+ (sw->sbarHorz.fScrollVisible ? //bottom window edge
+ GetScrollMetric(&sw->sbarHorz, SM_CYHORZSB) : 0);
+
+ if (sw->fLeftScrollbar)
+ {
+ rect->left += sw->cxLeftEdge;
+ rect->right = rect->left + (sw->sbarVert.fScrollVisible ?
+ GetScrollMetric(&sw->sbarVert, SM_CXVERTSB) : 0);
+ }
+ else
+ {
+ rect->right -= sw->cxRightEdge;
+ rect->left = rect->right - (sw->sbarVert.fScrollVisible ?
+ GetScrollMetric(&sw->sbarVert, SM_CXVERTSB) : 0);
+ }
+
+ return TRUE;
+}
+
+// Depending on what type of scrollbar nBar refers to, call the
+// appropriate Get?ScrollRect function
+//
+BOOL GetScrollRect(SCROLLWND *sw, UINT nBar, HWND hwnd, RECT *rect)
+{
+ if (nBar == SB_HORZ)
+ return GetHScrollRect(sw, hwnd, rect);
+ else if (nBar == SB_VERT)
+ return GetVScrollRect(sw, hwnd, rect);
+ else
+ return FALSE;
+}
+
+//
+// This code is a prime candidate for splitting out into a separate
+// file at some stage
+//
+#ifdef INCLUDE_BUTTONS
+
+//
+// Calculate the size in pixels of the specified button
+//
+static int GetSingleButSize(SCROLLBAR *sbar, SCROLLBUT *sbut)
+{
+ //multiple of the system button size
+ //or a specific button size
+ if (sbut->nSize < 0)
+ {
+ if (sbar->nBarType == SB_HORZ)
+ return -sbut->nSize * GetSystemMetrics(SM_CXHSCROLL);
+ else
+ return -sbut->nSize * GetSystemMetrics(SM_CYVSCROLL);
+ }
+ else
+ return sbut->nSize;
+}
+
+//
+// Find the size in pixels of all the inserted buttons,
+// either before or after the specified scrollbar
+//
+static int GetButtonSize(SCROLLBAR *sbar, HWND hwnd, UINT uBeforeAfter)
+{
+ int i;
+ int nPixels = 0;
+
+ SCROLLBUT *sbut = sbar->sbButtons;
+
+ for (i = 0; i < sbar->nButtons; i++)
+ {
+ //only consider those buttons on the same side as nTopBottom says
+ if (sbut[i].uPlacement == uBeforeAfter)
+ {
+ nPixels += GetSingleButSize(sbar, &sbut[i]);
+ }
+ }
+
+ return nPixels;
+}
+#endif //INCLUDE_BUTTONS
+
+//
+// Work out the scrollbar width/height for either type of scrollbar (SB_HORZ/SB_VERT)
+// rect - coords of the scrollbar.
+// store results into *thumbsize and *thumbpos
+//
+static int CalcThumbSize(SCROLLBAR *sbar, const RECT *rect, int *pthumbsize, int *pthumbpos)
+{
+ int scrollsize; //total size of the scrollbar including arrow buttons
+ int workingsize; //working area (where the thumb can slide)
+ int siMaxMin;
+ int butsize;
+ int startcoord;
+ int thumbpos = 0, thumbsize = 0;
+
+ static int count=0;
+
+ //work out the width (for a horizontal) or the height (for a vertical)
+ //of a standard scrollbar button
+ butsize = GetScrollMetric(sbar, SM_SCROLL_LENGTH);
+
+ scrollsize = rect->right - rect->left;
+ startcoord = rect->left;
+
+ SCROLLINFO *si = &sbar->scrollInfo;
+ siMaxMin = si->nMax - si->nMin + 1;
+ workingsize = scrollsize - butsize * 2;
+
+ //
+ // Work out the scrollbar thumb SIZE
+ //
+ if (si->nPage == 0)
+ {
+ thumbsize = butsize;
+ }
+ else if (siMaxMin > 0)
+ {
+ thumbsize = MulDiv(si->nPage, workingsize, siMaxMin);
+
+ if (thumbsize < sbar->nMinThumbSize)
+ thumbsize = sbar->nMinThumbSize;
+ }
+
+ //
+ // Work out the scrollbar thumb position
+ //
+ if (siMaxMin > 0)
+ {
+ int pagesize = max(1, si->nPage);
+ thumbpos = MulDiv(si->nPos - si->nMin, workingsize-thumbsize, siMaxMin - pagesize);
+
+ if (thumbpos < 0)
+ thumbpos = 0;
+
+ if (thumbpos >= workingsize-thumbsize)
+ thumbpos = workingsize-thumbsize;
+ }
+
+ thumbpos += startcoord + butsize;
+
+ *pthumbpos = thumbpos;
+ *pthumbsize = thumbsize;
+
+ return 1;
+}
+
+//
+// return a hit-test value for whatever part of the scrollbar x,y is located in
+// rect, x, y: SCREEN coordinates
+// the rectangle must not include space for any inserted buttons
+// (i.e, JUST the scrollbar area)
+//
+static UINT GetHorzScrollPortion(SCROLLBAR *sbar, const RECT *rect, int x, int y)
+{
+ int thumbwidth, thumbpos;
+ int butwidth = GetScrollMetric(sbar, SM_SCROLL_LENGTH);
+ int scrollwidth = rect->right-rect->left;
+ int workingwidth = scrollwidth - butwidth*2;
+
+ if (y < rect->top || y >= rect->bottom)
+ return HTSCROLL_NONE;
+
+ CalcThumbSize(sbar, rect, &thumbwidth, &thumbpos);
+
+ //if we have had to scale the buttons to fit in the rect,
+ //then adjust the button width accordingly
+ if (scrollwidth <= butwidth * 2)
+ {
+ butwidth = scrollwidth / 2;
+ }
+
+ //check for left button click
+ if (x >= rect->left && x < rect->left + butwidth)
+ {
+ return HTSCROLL_LEFT;
+ }
+ //check for right button click
+ else if (x >= rect->right-butwidth && x < rect->right)
+ {
+ return HTSCROLL_RIGHT;
+ }
+
+ //if the thumb is too big to fit (i.e. it isn't visible)
+ //then return a NULL scrollbar area
+ if (thumbwidth >= workingwidth)
+ return HTSCROLL_NONE;
+
+ //check for point in the thumbbar
+ if (x >= thumbpos && x < thumbpos+thumbwidth)
+ {
+ return HTSCROLL_THUMB;
+ }
+ //check for left margin
+ else if (x >= rect->left+butwidth && x < thumbpos)
+ {
+ return HTSCROLL_PAGELEFT;
+ }
+ else if (x >= thumbpos+thumbwidth && x < rect->right-butwidth)
+ {
+ return HTSCROLL_PAGERIGHT;
+ }
+
+ return HTSCROLL_NONE;
+}
+
+//
+// For vertical scrollbars, rotate all coordinates by -90 degrees
+// so that we can use the horizontal version of this function
+//
+static UINT GetVertScrollPortion(SCROLLBAR *sb, RECT *rect, int x, int y)
+{
+ UINT r;
+
+ RotateRect(rect);
+ r = GetHorzScrollPortion(sb, rect, y, x);
+ RotateRect(rect);
+ return r;
+}
+
+//
+// CUSTOM DRAW support
+//
+static LRESULT PostCustomPrePostPaint(HWND hwnd, HDC hdc, SCROLLBAR *sb, UINT dwStage)
+{
+#ifdef CUSTOM_DRAW
+ NMCSBCUSTOMDRAW nmcd;
+
+ CoolSB_ZeroMemory(&nmcd, sizeof nmcd);
+ nmcd.hdr.hwndFrom = hwnd;
+ nmcd.hdr.idFrom = GetWindowLongPtr(hwnd, GWLP_ID);
+ nmcd.hdr.code = NM_COOLSB_CUSTOMDRAW;
+ nmcd.nBar = sb->nBarType;
+ nmcd.dwDrawStage = dwStage;
+ nmcd.hdc = hdc;
+
+ hwnd = GetParent(hwnd);
+ return CustomDrawScrollBars(&nmcd);
+#else
+ return 0;
+#endif
+}
+
+static LRESULT PostCustomDrawNotify(HWND hwnd, HDC hdc, UINT nBar, RECT *prect, UINT nItem, BOOL fMouseDown, BOOL fMouseOver, BOOL fInactive)
+{
+#ifdef CUSTOM_DRAW
+ NMCSBCUSTOMDRAW nmcd;
+
+ //fill in the standard header
+ nmcd.hdr.hwndFrom = hwnd;
+ nmcd.hdr.idFrom = GetWindowLongPtr(hwnd, GWLP_ID);
+ nmcd.hdr.code = NM_COOLSB_CUSTOMDRAW;
+
+ nmcd.dwDrawStage = CDDS_ITEMPREPAINT;
+ nmcd.nBar = nBar;
+ nmcd.rect = *prect;
+ nmcd.uItem = nItem;
+ nmcd.hdc = hdc;
+
+ if (fMouseDown)
+ nmcd.uState = CDIS_SELECTED;
+ else if (fMouseOver)
+ nmcd.uState = CDIS_HOT;
+ else if (fInactive)
+ nmcd.uState = CDIS_DISABLED;
+ else
+ nmcd.uState = CDIS_DEFAULT;
+
+ hwnd = GetParent(hwnd);
+ return CustomDrawScrollBars(&nmcd);
+#else
+ return 0;
+#endif
+}
+
+// Depending on if we are supporting custom draw, either define
+// a macro to the function name, or to nothing at all. If custom draw
+// is turned off, then we can save ALOT of code space by binning all
+// calls to the custom draw support.
+
+/*
+#ifdef CUSTOM_DRAW
+#define PostCustomDrawNotify PostCustomDrawNotify0
+#define PostCustomPrePostPaint PostCustomPrePostPaint0
+#else
+#define PostCustomDrawNotify 1 ? (void)0 : PostCustomDrawNotify0
+#define PostCustomPrePostPaint 1 ? (void)0 : PostCustomPrePostPaint0
+#endif
+*/
+
+static LRESULT PostMouseNotify0(HWND hwnd, UINT nBar, RECT *prect, UINT nCmdId, POINT pt)
+{
+#ifdef NOTIFY_MOUSE
+ NMCOOLBUTMSG nmcb;
+
+ //fill in the standard header
+ nmcb.hdr.hwndFrom = hwnd;
+ nmcb.hdr.idFrom = GetWindowLongPtr(hwnd, GWLP_ID);
+ nmcb.hdr.code = NM_CLICK;
+
+ nmcb.nBar = nBar;
+ nmcb.uCmdId = nCmdId;
+ nmcb.uState = 0;
+ nmcb.rect = *prect;
+ nmcb.pt = pt;
+
+ hwnd = GetParent(hwnd);
+ return SendMessage(hwnd, WM_NOTIFY, nmcb.hdr.idFrom, (LPARAM)&nmcb);
+#else
+ return 0;
+#endif
+}
+
+#ifdef NOTIFY_MOUSE
+#define PostMouseNotify PostMouseNotify0
+#else
+#define PostMouseNotify 1 ? (void)0 : PostMouseNotify0
+#endif
+
+
+
+//
+// Draw a complete HORIZONTAL scrollbar in the given rectangle
+// Don't draw any inserted buttons in this procedure
+//
+// uDrawFlags - hittest code, to say if to draw the
+// specified portion in an active state or not.
+//
+//
+static LRESULT NCDrawHScrollbar(SCROLLBAR *sb, HWND hwnd, HDC hdc, const RECT *rect, UINT uDrawFlags)
+{
+ SCROLLINFO *si;
+ RECT ctrl, thumb;
+ RECT sbm;
+ int butwidth = GetScrollMetric(sb, SM_SCROLL_LENGTH);
+ int scrollwidth = rect->right-rect->left;
+ int workingwidth = scrollwidth - butwidth*2;
+ int thumbwidth = 0, thumbpos = 0;
+ int siMaxMin;
+
+ BOOL fCustomDraw = 0;
+
+ BOOL fMouseDownL = 0, fMouseOverL = 0, fBarHot = 0;
+ BOOL fMouseDownR = 0, fMouseOverR = 0;
+
+ COLORREF crCheck1 = GetSBForeColor();
+ COLORREF crCheck2 = GetSBBackColor();
+ COLORREF crInverse1 = InvertCOLORREF(crCheck1);
+ COLORREF crInverse2 = InvertCOLORREF(crCheck2);
+
+ UINT uDEFlat = sb->fFlatScrollbar ? BF_FLAT : 0;
+
+ //drawing flags to modify the appearance of the scrollbar buttons
+ UINT uLeftButFlags = DFCS_SCROLLLEFT;
+ UINT uRightButFlags = DFCS_SCROLLRIGHT;
+
+ if (scrollwidth <= 0)
+ return 0;
+
+ si = &sb->scrollInfo;
+ siMaxMin = si->nMax - si->nMin;
+
+ if (hwnd != hwndCurCoolSB)
+ uDrawFlags = HTSCROLL_NONE;
+ //
+ // work out the thumb size and position
+ //
+ CalcThumbSize(sb, rect, &thumbwidth, &thumbpos);
+
+ if (sb->fScrollFlags & ESB_DISABLE_LEFT) uLeftButFlags |= DFCS_INACTIVE;
+ if (sb->fScrollFlags & ESB_DISABLE_RIGHT) uRightButFlags |= DFCS_INACTIVE;
+
+ //if we need to grey the arrows because there is no data to scroll
+ if ( !IsScrollInfoActive(si) && !(sb->fScrollFlags & CSBS_THUMBALWAYS))
+ {
+ uLeftButFlags |= DFCS_INACTIVE;
+ uRightButFlags |= DFCS_INACTIVE;
+ }
+
+ if (hwnd == hwndCurCoolSB)
+ {
+#ifdef FLAT_SCROLLBARS
+ BOOL ldis = !(uLeftButFlags & DFCS_INACTIVE);
+ BOOL rdis = !(uRightButFlags & DFCS_INACTIVE);
+
+ fBarHot = (sb->nBarType == (int)uMouseOverScrollbar && sb->fFlatScrollbar == CSBS_HOTTRACKED);
+
+ fMouseOverL = uHitTestPortion == HTSCROLL_LEFT && fBarHot && ldis;
+ fMouseOverR = uHitTestPortion == HTSCROLL_RIGHT && fBarHot && rdis;
+#endif
+ fMouseDownL = (uDrawFlags == HTSCROLL_LEFT);
+ fMouseDownR = (uDrawFlags == HTSCROLL_RIGHT);
+ }
+
+
+//#ifdef CUSTOM_DRAW
+ fCustomDraw = ((PostCustomPrePostPaint(hwnd, hdc, sb, CDDS_PREPAINT)) == CDRF_SKIPDEFAULT);
+//#endif
+
+ //
+ // Draw the scrollbar now
+ //
+ if (scrollwidth > butwidth*2)
+ {
+ //LEFT ARROW
+ SetRect(&ctrl, rect->left, rect->top, rect->left + butwidth, rect->bottom);
+
+ RotateRect0(sb, &ctrl);
+
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, sb->nBarType, &ctrl, SB_LINELEFT, fMouseDownL, fMouseOverL, uLeftButFlags & DFCS_INACTIVE);
+ else
+ DrawScrollArrow(sb, hdc, &ctrl, uLeftButFlags, fMouseDownL, fMouseOverL);
+
+ RotateRect0(sb, &ctrl);
+
+ //MIDDLE PORTION
+ //if we can fit the thumbbar in, then draw it
+ if (thumbwidth > 0 && thumbwidth <= workingwidth
+ && IsScrollInfoActive(si) && ((sb->fScrollFlags & ESB_DISABLE_BOTH) != ESB_DISABLE_BOTH))
+ {
+ //Draw the scrollbar margin above the thumb
+ SetRect(&sbm, rect->left + butwidth, rect->top, thumbpos, rect->bottom);
+
+ RotateRect0(sb, &sbm);
+
+ if (fCustomDraw)
+ {
+ PostCustomDrawNotify(hwnd, hdc, sb->nBarType, &sbm, SB_PAGELEFT, uDrawFlags == HTSCROLL_PAGELEFT, FALSE, FALSE);
+ }
+ else
+ {
+ if (uDrawFlags == HTSCROLL_PAGELEFT)
+ DrawCheckedRect(hdc, &sbm, crInverse1, crInverse2);
+ else
+ DrawCheckedRect(hdc, &sbm, crCheck1, crCheck2);
+
+ }
+
+ RotateRect0(sb, &sbm);
+
+ //Draw the margin below the thumb
+ sbm.left = thumbpos+thumbwidth;
+ sbm.right = rect->right - butwidth;
+
+ RotateRect0(sb, &sbm);
+ if (fCustomDraw)
+ {
+ PostCustomDrawNotify(hwnd, hdc, sb->nBarType, &sbm, SB_PAGERIGHT, uDrawFlags == HTSCROLL_PAGERIGHT, 0, 0);
+ }
+ else
+ {
+ if (uDrawFlags == HTSCROLL_PAGERIGHT)
+ DrawCheckedRect(hdc, &sbm, crInverse1, crInverse2);
+ else
+ DrawCheckedRect(hdc, &sbm, crCheck1, crCheck2);
+
+ }
+ RotateRect0(sb, &sbm);
+
+ //Draw the THUMB finally
+ SetRect(&thumb, thumbpos, rect->top, thumbpos+thumbwidth, rect->bottom);
+
+ RotateRect0(sb, &thumb);
+
+ if (fCustomDraw)
+ {
+ PostCustomDrawNotify(hwnd, hdc, sb->nBarType, &thumb, SB_THUMBTRACK, uDrawFlags==HTSCROLL_THUMB, uHitTestPortion == HTSCROLL_THUMB && fBarHot, FALSE);
+ }
+ else
+ {
+
+#ifdef FLAT_SCROLLBARS
+ if (hwnd == hwndCurCoolSB && sb->fFlatScrollbar && (uDrawFlags == HTSCROLL_THUMB ||
+ (uHitTestPortion == HTSCROLL_THUMB && fBarHot)))
+ {
+ PaintRect(hdc, &thumb, GetSysColor(COLOR_3DSHADOW));
+ }
+ else
+#endif
+ {
+ DrawBlankButton(hdc, &thumb, uDEFlat);
+ }
+ }
+ RotateRect0(sb, &thumb);
+
+ }
+ //otherwise, just leave that whole area blank
+ else
+ {
+ OffsetRect(&ctrl, butwidth, 0);
+ ctrl.right = rect->right - butwidth;
+
+ //if we always show the thumb covering the whole scrollbar,
+ //then draw it that way
+ if ( !IsScrollInfoActive(si) && (sb->fScrollFlags & CSBS_THUMBALWAYS)
+ && ctrl.right - ctrl.left > sb->nMinThumbSize)
+ {
+ //leave a 1-pixel gap between the thumb + right button
+ ctrl.right --;
+ RotateRect0(sb, &ctrl);
+
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, sb->nBarType, &ctrl, SB_THUMBTRACK, fMouseDownL, FALSE, FALSE);
+ else
+ {
+#ifdef FLAT_SCROLLBARS
+ if (sb->fFlatScrollbar == CSBS_HOTTRACKED && uDrawFlags == HTSCROLL_THUMB)
+ PaintRect(hdc, &ctrl, GetSysColor(COLOR_3DSHADOW));
+ else
+#endif
+ DrawBlankButton(hdc, &ctrl, uDEFlat);
+
+ }
+ RotateRect0(sb, &ctrl);
+
+ //draw the single-line gap
+ ctrl.left = ctrl.right;
+ ctrl.right += 1;
+
+ RotateRect0(sb, &ctrl);
+
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, sb->nBarType, &ctrl, SB_PAGERIGHT, 0, 0, 0);
+ else
+ PaintRect(hdc, &ctrl, GetSysColor(COLOR_SCROLLBAR));
+
+ RotateRect0(sb, &ctrl);
+ }
+ //otherwise, paint a blank if the thumb doesn't fit in
+ else
+ {
+ RotateRect0(sb, &ctrl);
+
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, sb->nBarType, &ctrl, SB_PAGERIGHT, 0, 0, 0);
+ else
+ DrawCheckedRect(hdc, &ctrl, crCheck1, crCheck2);
+
+ RotateRect0(sb, &ctrl);
+ }
+ }
+
+ //RIGHT ARROW
+ SetRect(&ctrl, rect->right - butwidth, rect->top, rect->right, rect->bottom);
+
+ RotateRect0(sb, &ctrl);
+
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, sb->nBarType, &ctrl, SB_LINERIGHT, fMouseDownR, fMouseOverR, uRightButFlags & DFCS_INACTIVE);
+ else
+ DrawScrollArrow(sb, hdc, &ctrl, uRightButFlags, fMouseDownR, fMouseOverR);
+
+ RotateRect0(sb, &ctrl);
+ }
+ //not enough room for the scrollbar, so just draw the buttons (scaled in size to fit)
+ else
+ {
+ butwidth = scrollwidth / 2;
+
+ //LEFT ARROW
+ SetRect(&ctrl, rect->left, rect->top, rect->left + butwidth, rect->bottom);
+
+ RotateRect0(sb, &ctrl);
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, sb->nBarType, &ctrl, SB_LINELEFT, fMouseDownL, fMouseOverL, uLeftButFlags & DFCS_INACTIVE);
+ else
+ DrawScrollArrow(sb, hdc, &ctrl, uLeftButFlags, fMouseDownL, fMouseOverL);
+ RotateRect0(sb, &ctrl);
+
+ //RIGHT ARROW
+ OffsetRect(&ctrl, scrollwidth - butwidth, 0);
+
+ RotateRect0(sb, &ctrl);
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, sb->nBarType, &ctrl, SB_LINERIGHT, fMouseDownR, fMouseOverR, uRightButFlags & DFCS_INACTIVE);
+ else
+ DrawScrollArrow(sb, hdc, &ctrl, uRightButFlags, fMouseDownR, fMouseOverR);
+ RotateRect0(sb, &ctrl);
+
+ //if there is a gap between the buttons, fill it with a solid color
+ //if (butwidth & 0x0001)
+ if (ctrl.left != rect->left + butwidth)
+ {
+ ctrl.left --;
+ ctrl.right -= butwidth;
+ RotateRect0(sb, &ctrl);
+
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, sb->nBarType, &ctrl, SB_PAGERIGHT, 0, 0, 0);
+ else
+ DrawCheckedRect(hdc, &ctrl, crCheck1, crCheck2);
+
+ RotateRect0(sb, &ctrl);
+ }
+
+ }
+
+//#ifdef CUSTOM_DRAW
+ PostCustomPrePostPaint(hwnd, hdc, sb, CDDS_POSTPAINT);
+//#endif
+
+ return fCustomDraw;
+}
+
+//
+// Draw a vertical scrollbar using the horizontal draw routine, but
+// with the coordinates adjusted accordingly
+//
+static LRESULT NCDrawVScrollbar(SCROLLBAR *sb, HWND hwnd, HDC hdc, const RECT *rect, UINT uDrawFlags)
+{
+ LRESULT ret;
+ RECT rc;
+
+ rc = *rect;
+ RotateRect(&rc);
+ ret = NCDrawHScrollbar(sb, hwnd, hdc, &rc, uDrawFlags);
+ RotateRect(&rc);
+
+ return ret;
+}
+
+//
+// Generic wrapper function for the scrollbar drawing
+//
+static LRESULT NCDrawScrollbar(SCROLLBAR *sb, HWND hwnd, HDC hdc, const RECT *rect, UINT uDrawFlags)
+{
+ if (sb->nBarType == SB_HORZ)
+ return NCDrawHScrollbar(sb, hwnd, hdc, rect, uDrawFlags);
+ else
+ return NCDrawVScrollbar(sb, hwnd, hdc, rect, uDrawFlags);
+}
+
+#ifdef INCLUDE_BUTTONS
+
+//
+// Draw the specified bitmap centered in the rectangle
+//
+static void DrawImage(HDC hdc, HBITMAP hBitmap, RECT *rc)
+{
+ BITMAP bm;
+ int cx;
+ int cy;
+ HDC memdc;
+ HBITMAP hOldBM;
+ RECT rcDest = *rc;
+ POINT p;
+ SIZE delta;
+ COLORREF colorOld;
+
+ if (hBitmap == NULL)
+ return;
+
+ // center bitmap in caller's rectangle
+ GetObject(hBitmap, sizeof bm, &bm);
+
+ cx = bm.bmWidth;
+ cy = bm.bmHeight;
+
+ delta.cx = (rc->right-rc->left - cx) / 2;
+ delta.cy = (rc->bottom-rc->top - cy) / 2;
+
+ if (rc->right-rc->left > cx)
+ {
+ SetRect(&rcDest, rc->left+delta.cx, rc->top + delta.cy, 0, 0);
+ rcDest.right = rcDest.left + cx;
+ rcDest.bottom = rcDest.top + cy;
+ p.x = 0;
+ p.y = 0;
+ }
+ else
+ {
+ p.x = -delta.cx;
+ p.y = -delta.cy;
+ }
+
+ // select checkmark into memory DC
+ memdc = CreateCompatibleDC(hdc);
+ hOldBM = (HBITMAP)SelectObject(memdc, hBitmap);
+
+ // set BG color based on selected state
+ colorOld = SetBkColor(hdc, GetSysColor(COLOR_3DFACE));
+
+ BitBlt(hdc, rcDest.left, rcDest.top, rcDest.right-rcDest.left, rcDest.bottom-rcDest.top, memdc, p.x, p.y, SRCCOPY);
+
+ // restore
+ SetBkColor(hdc, colorOld);
+ SelectObject(memdc, hOldBM);
+ DeleteDC(memdc);
+}
+
+//
+// Draw the specified metafile
+//
+static void DrawMetaFile(HDC hdc, HENHMETAFILE hemf, RECT *rect)
+{
+ RECT rc;
+ POINT pt;
+
+ SetRect(&rc, 0, 0, rect->right-rect->left, rect->bottom-rect->top);
+ SetWindowOrgEx(hdc, -rect->left, -rect->top, &pt);
+ PlayEnhMetaFile(hdc, hemf, &rc);
+ SetWindowOrgEx(hdc, pt.x, pt.y, 0);
+}
+
+//
+// Draw a single scrollbar inserted button, in whatever style
+// it has been defined to use.
+//
+static UINT DrawScrollButton(SCROLLBUT *sbut, HDC hdc, const RECT *pctrl, UINT flags)
+{
+ NMCSBCUSTOMDRAW nmcd;
+ HWND hwnd;
+ RECT rect = *pctrl;
+ UINT f;
+
+ switch(sbut->uButType & SBBT_MASK)
+ {
+ case SBBT_OWNERDRAW:
+
+ hwnd = WindowFromDC(hdc);
+
+ //fill in the standard header
+ nmcd.hdr.hwndFrom = hwnd;
+ nmcd.hdr.idFrom = GetWindowLongPtr(hwnd, GWLP_ID);
+ nmcd.hdr.code = NM_COOLSB_CUSTOMDRAW;
+
+ nmcd.dwDrawStage = CDDS_ITEMPREPAINT;
+ nmcd.nBar = SB_INSBUT;
+ nmcd.rect = *pctrl;
+ nmcd.uItem = sbut->uCmdId;
+ nmcd.hdc = hdc;
+ nmcd.uState = flags;
+
+ IntersectClipRect(hdc, rect.left, rect.top, rect.right, rect.bottom);
+ SendMessage(GetParent(hwnd), WM_NOTIFY, nmcd.hdr.idFrom, (LPARAM)&nmcd);
+ SelectClipRgn(hdc, NULL);
+
+ break;
+
+ case SBBT_FIXED:
+ flags &= ~SBBS_PUSHED;
+
+ case SBBT_TOGGLEBUTTON:
+ if (sbut->uState != SBBS_NORMAL)
+ flags |= SBBS_PUSHED;
+
+ //intentionally fall through here...
+
+ case SBBT_PUSHBUTTON:
+
+ f = flags & SBBS_PUSHED ? DFCS_PUSHED | DFCS_FLAT : 0;
+ if (sbut->uButType & SBBM_LEFTARROW)
+ {
+ DrawFrameControl(hdc, &rect, DFC_SCROLL, DFCS_SCROLLLEFT | f);
+ }
+ else if (sbut->uButType & SBBM_RIGHTARROW)
+ {
+ DrawFrameControl(hdc, &rect, DFC_SCROLL, DFCS_SCROLLRIGHT | f);
+ }
+ else if (sbut->uButType & SBBM_UPARROW)
+ {
+ DrawFrameControl(hdc, &rect, DFC_SCROLL, DFCS_SCROLLUP | f);
+ }
+ else if (sbut->uButType & SBBM_DOWNARROW)
+ {
+ DrawFrameControl(hdc, &rect, DFC_SCROLL, DFCS_SCROLLDOWN | f);
+ }
+ else
+ {
+ //
+ if (flags & SBBS_PUSHED)
+ {
+ if (sbut->uButType & SBBM_RECESSED)
+ {
+ InflateRect(&rect, -1, -1);
+ DrawEdge(hdc, &rect, EDGE_SUNKEN, BF_RECT|BF_FLAT);
+ InflateRect(&rect, 1, 1);
+
+ FrameRect(hdc, &rect, GetSysColorBrush(COLOR_3DDKSHADOW));
+ InflateRect(&rect, -2, -2);
+ }
+ else
+ {
+ DrawEdge(hdc, &rect, EDGE_SUNKEN, BF_RECT | BF_FLAT | BF_ADJUST);
+ InflateRect(&rect, 1, 1);
+ }
+ }
+ else
+ {
+ // draw the button borders
+ if (sbut->uButType & SBBM_TYPE2)
+ {
+ DrawFrameControl(hdc, &rect, DFC_BUTTON, DFCS_BUTTONPUSH);
+ InflateRect(&rect, -2, -2);
+ }
+
+ else if (sbut->uButType & SBBM_TYPE3)
+ {
+ DrawFrameControl(hdc, &rect, DFC_BUTTON, DFCS_BUTTONPUSH);
+ InflateRect(&rect, -1, -1);
+ }
+ else
+ {
+ DrawEdge(hdc, &rect, EDGE_RAISED, BF_RECT | BF_ADJUST);
+ rect.bottom++;
+ rect.right++;
+ }
+
+ OffsetRect(&rect, -1, -1);
+ rect.top++; rect.left++;
+ }
+
+ if (sbut->hBmp)
+ {
+ PaintRect(hdc, &rect, GetSysColor(COLOR_3DFACE));
+
+ if (flags & SBBS_PUSHED)
+ {
+ rect.top++; rect.left++;
+ }
+
+ IntersectClipRect(hdc, rect.left, rect.top, rect.right,rect.bottom);
+ DrawImage(hdc, sbut->hBmp, &rect);
+ SelectClipRgn(hdc, 0);
+ }
+ else if (sbut->hEmf)
+ {
+ PaintRect(hdc, &rect, GetSysColor(COLOR_3DFACE));
+ InflateRect(&rect, -1, -1);
+
+ if (flags & SBBS_PUSHED)
+ {
+ rect.top++; rect.left++;
+ }
+
+ IntersectClipRect(hdc, rect.left, rect.top, rect.right,rect.bottom);
+ DrawMetaFile(hdc, sbut->hEmf, &rect);
+ SelectClipRgn(hdc, 0);
+ }
+ else
+ {
+ PaintRect(hdc, &rect, GetSysColor(COLOR_3DFACE));
+ }
+ }
+
+
+ break;
+
+ case SBBT_BLANK:
+ PaintRect(hdc, &rect, GetSysColor(COLOR_3DFACE));
+ break;
+
+ case SBBT_FLAT:
+ DrawBlankButton(hdc, &rect, BF_FLAT);
+ break;
+
+ case SBBT_DARK:
+ PaintRect(hdc, &rect, GetSysColor(COLOR_3DDKSHADOW));
+ break;
+ }
+
+ return 0;
+}
+
+//
+// Draw any buttons inserted into the horizontal scrollbar
+// assume that the button widths have already been calculated
+// Note: RECT *rect is the rectangle of the scrollbar
+// leftright: 1 = left, 2 = right, 3 = both
+//
+static LRESULT DrawHorzButtons(SCROLLBAR *sbar, HDC hdc, const RECT *rect, int leftright)
+{
+ int i;
+ int xposl, xposr;
+ RECT ctrl;
+ SCROLLBUT *sbut = sbar->sbButtons;
+
+ xposl = rect->left - sbar->nButSizeBefore;
+ xposr = rect->right;
+
+ for (i = 0; i < sbar->nButtons; i++)
+ {
+ if ((leftright & SBBP_LEFT) && sbut[i].uPlacement == SBBP_LEFT)
+ {
+ int butwidth = GetSingleButSize(sbar, &sbut[i]);
+ SetRect(&ctrl, xposl, rect->top, xposl + butwidth, rect->bottom);
+ RotateRect0(sbar, &ctrl);
+ DrawScrollButton(&sbut[i], hdc, &ctrl, SBBS_NORMAL);
+
+ xposl += butwidth;
+ }
+
+ if ((leftright & SBBP_RIGHT) && sbut[i].uPlacement == SBBP_RIGHT)
+ {
+ int butwidth = GetSingleButSize(sbar, &sbut[i]);
+ SetRect(&ctrl, xposr, rect->top, xposr + butwidth, rect->bottom);
+ RotateRect0(sbar, &ctrl);
+ DrawScrollButton(&sbut[i], hdc, &ctrl, SBBS_NORMAL);
+ xposr += butwidth;
+ }
+ }
+ return 0;
+}
+
+static LRESULT DrawVertButtons(SCROLLBAR *sbar, HDC hdc, const RECT *rect, int leftright)
+{
+ RECT rc = *rect;
+ RotateRect(&rc);
+ DrawHorzButtons(sbar, hdc, &rc, leftright);
+ return 0;
+}
+#endif // INCLUDE_BUTTONS
+
+//
+// Define these two for proper processing of NCPAINT
+// NOT needed if we don't bother to mask the scrollbars we draw
+// to prevent the old window procedure from accidently drawing over them
+//
+HDC CoolSB_GetDC(HWND hwnd, WPARAM)
+{
+ // I just can't figure out GetDCEx, so I'll just use this:
+ return GetWindowDC(hwnd);
+}
+
+static LRESULT NCPaint(SCROLLWND *sw, HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+ SCROLLBAR *sb;
+ HDC hdc;
+ RECT winrect, rect;
+ HRGN clip = 0;
+ BOOL fCustomDraw = FALSE;
+ LRESULT ret;
+ DWORD dwStyle;
+
+ GetWindowRect(hwnd, &winrect);
+
+ HRGN hrgn = (HRGN)wParam;
+
+ //hdc = GetWindowDC(hwnd);
+ hdc = CoolSB_GetDC(hwnd, wParam);
+
+ //
+ // Only draw the horizontal scrollbar if the window is tall enough
+ //
+ sb = &sw->sbarHorz;
+ if (sb->fScrollVisible)
+ {
+ //get the screen coordinates of the whole horizontal scrollbar area
+ GetHScrollRect(sw, hwnd, &rect);
+
+ //make the coordinates relative to the window for drawing
+ OffsetRect(&rect, -winrect.left, -winrect.top);
+
+ if (uCurrentScrollbar == SB_HORZ)
+ fCustomDraw |= NCDrawHScrollbar(sb, hwnd, hdc, &rect, uScrollTimerPortion);
+ else
+ fCustomDraw |= NCDrawHScrollbar(sb, hwnd, hdc, &rect, HTSCROLL_NONE);
+ }
+
+ //
+ // Only draw the vertical scrollbar if the window is wide enough to accomodate it
+ //
+ sb = &sw->sbarVert;
+ if (sb->fScrollVisible)
+ {
+ //get the screen cooridinates of the whole horizontal scrollbar area
+ GetVScrollRect(sw, hwnd, &rect);
+
+ //make the coordinates relative to the window for drawing
+ OffsetRect(&rect, -winrect.left, -winrect.top);
+
+ if (uCurrentScrollbar == SB_VERT)
+ fCustomDraw |= NCDrawVScrollbar(sb, hwnd, hdc, &rect, uScrollTimerPortion);
+ else
+ fCustomDraw |= NCDrawVScrollbar(sb, hwnd, hdc, &rect, HTSCROLL_NONE);
+ }
+
+ //Call the default window procedure for WM_NCPAINT, with the
+ //new window region. ** region must be in SCREEN coordinates **
+ dwStyle = GetWindowLongPtr(hwnd, GWL_STYLE);
+
+ // If the window has WS_(H-V)SCROLL bits set, we should reset them
+ // to avoid windows taking the scrollbars into account.
+ // We temporarily set a flag preventing the subsecuent
+ // WM_STYLECHANGING/WM_STYLECHANGED to be forwarded to
+ // the original window procedure
+ if ( dwStyle & (WS_VSCROLL|WS_HSCROLL))
+ {
+ sw->bPreventStyleChange = TRUE;
+ SetWindowLongPtr(hwnd, GWL_STYLE, dwStyle & ~(WS_VSCROLL|WS_HSCROLL));
+ }
+
+ ret = mir_callNextSubclass(hwnd, CoolSBWndProc, WM_NCPAINT, (WPARAM)hrgn, lParam);
+
+ if ( dwStyle & (WS_VSCROLL|WS_HSCROLL))
+ {
+ SetWindowLongPtr(hwnd, GWL_STYLE, dwStyle);
+ sw->bPreventStyleChange = FALSE;
+ }
+
+ // DRAW THE DEAD AREA
+ // only do this if the horizontal and vertical bars are visible
+ if (sw->sbarHorz.fScrollVisible && sw->sbarVert.fScrollVisible)
+ {
+ GetWindowRect(hwnd, &rect);
+ OffsetRect(&rect, -winrect.left, -winrect.top);
+
+ rect.bottom -= sw->cyBottomEdge;
+ rect.top = rect.bottom - GetScrollMetric(&sw->sbarHorz, SM_CYHORZSB);
+
+ if (sw->fLeftScrollbar)
+ {
+ rect.left += sw->cxLeftEdge;
+ rect.right = rect.left + GetScrollMetric(&sw->sbarVert, SM_CXVERTSB);
+ }
+ else
+ {
+ rect.right -= sw->cxRightEdge;
+ rect.left = rect.right - GetScrollMetric(&sw->sbarVert, SM_CXVERTSB);
+ }
+
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, SB_BOTH, &rect, 32, 0, 0, 0);
+ else
+ {
+ //calculate the position of THIS window's dead area
+ //with the position of the PARENT window's client rectangle.
+ //if THIS window has been positioned such that its bottom-right
+ //corner sits in the parent's bottom-right corner, then we should
+ //show the sizing-grip.
+ //Otherwise, assume this window is not in the right place, and
+ //just draw a blank rectangle
+ RECT parent;
+ RECT rect2;
+ HWND hwndParent = GetParent(hwnd);
+
+ GetClientRect(hwndParent, &parent);
+ MapWindowPoints(hwndParent, 0, (POINT *)&parent, 2);
+
+ CopyRect(&rect2, &rect);
+ OffsetRect(&rect2, winrect.left, winrect.top);
+
+ if ( !sw->fLeftScrollbar && parent.right == rect2.right+sw->cxRightEdge && parent.bottom == rect2.bottom+sw->cyBottomEdge
+ || sw->fLeftScrollbar && parent.left == rect2.left -sw->cxLeftEdge && parent.bottom == rect2.bottom+sw->cyBottomEdge)
+ DrawFrameControl(hdc, &rect, DFC_SCROLL, sw->fLeftScrollbar ? DFCS_SCROLLSIZEGRIPRIGHT : DFCS_SCROLLSIZEGRIP );
+ else
+ PaintRect(hdc, &rect, GetSysColor(COLOR_3DFACE));
+ }
+ }
+
+ UNREFERENCED_PARAMETER(clip);
+ ReleaseDC(hwnd, hdc);
+ return ret;
+}
+
+//
+// Need to detect if we have clicked in the scrollbar region or not
+//
+static LRESULT NCHitTest(SCROLLWND *sw, HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+ RECT hrect;
+ RECT vrect;
+ POINT pt;
+
+ pt.x = LOWORD(lParam);
+ pt.y = HIWORD(lParam);
+
+ //work out exactly where the Horizontal and Vertical scrollbars are
+ GetHScrollRect(sw, hwnd, &hrect);
+ GetVScrollRect(sw, hwnd, &vrect);
+
+ //Clicked in the horizontal scrollbar area
+ if (sw->sbarHorz.fScrollVisible && PtInRect(&hrect, pt))
+ return HTHSCROLL;
+
+ //Clicked in the vertical scrollbar area
+ if (sw->sbarVert.fScrollVisible && PtInRect(&vrect, pt))
+ return HTVSCROLL;
+
+ //clicked somewhere else
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_NCHITTEST, wParam, lParam);
+}
+
+//
+// Return a HT* value indicating what part of the scrollbar was clicked
+// Rectangle is not adjusted
+//
+static UINT GetHorzPortion(SCROLLBAR *sb, RECT *rect, int x, int y)
+{
+ RECT rc = *rect;
+
+ if (y < rc.top || y >= rc.bottom) return HTSCROLL_NONE;
+
+#ifdef INCLUDE_BUTTONS
+
+ if (sb->fButVisibleBefore)
+ {
+ //clicked on the buttons to the left of the scrollbar
+ if (x >= rc.left && x < rc.left + sb->nButSizeBefore)
+ return HTSCROLL_INSERTED;
+
+ //adjust the rectangle to exclude the left-side buttons, now that we
+ //know we havn't clicked on them
+ rc.left += sb->nButSizeBefore;
+ }
+
+ if (sb->fButVisibleAfter)
+ {
+ //clicked on the buttons to the right of the scrollbar
+ if (x >= rc.right - sb->nButSizeAfter && x < rc.right)
+ return HTSCROLL_INSERTED;
+
+ //adjust the rectangle to exclude the right-side buttons, now that we
+ //know we havn't clicked on them
+ rc.right -= sb->nButSizeAfter;
+ }
+
+#endif INCLUDE_BUTTONS
+
+ //Now we have the rectangle for the scrollbar itself, so work out
+ //what part we clicked on.
+ return GetHorzScrollPortion(sb, &rc, x, y);
+}
+
+//
+// Just call the horizontal version, with adjusted coordinates
+//
+static UINT GetVertPortion(SCROLLBAR *sb, RECT *rect, int x, int y)
+{
+ UINT ret;
+ RotateRect(rect);
+ ret = GetHorzPortion(sb, rect, y, x);
+ RotateRect(rect);
+ return ret;
+}
+
+//
+// Wrapper function for GetHorzPortion and GetVertPortion
+//
+static UINT GetPortion(SCROLLBAR *sb, RECT *rect, int x, int y)
+{
+ if (sb->nBarType == SB_HORZ)
+ return GetHorzPortion(sb, rect, x, y);
+ else if (sb->nBarType == SB_VERT)
+ return GetVertPortion(sb, rect, x, y);
+ else
+ return HTSCROLL_NONE;
+}
+
+//
+// Input: rectangle of the total scrollbar area
+// Output: adjusted to take the inserted buttons into account
+//
+static void GetRealHorzScrollRect(SCROLLBAR *sb, RECT *rect)
+{
+ if (sb->fButVisibleBefore) rect->left += sb->nButSizeBefore;
+ if (sb->fButVisibleAfter) rect->right -= sb->nButSizeAfter;
+}
+
+//
+// Input: rectangle of the total scrollbar area
+// Output: adjusted to take the inserted buttons into account
+//
+static void GetRealVertScrollRect(SCROLLBAR *sb, RECT *rect)
+{
+ if (sb->fButVisibleBefore) rect->top += sb->nButSizeBefore;
+ if (sb->fButVisibleAfter) rect->bottom -= sb->nButSizeAfter;
+}
+
+//
+// Decide which type of scrollbar we have before calling
+// the real function to do the job
+//
+static void GetRealScrollRect(SCROLLBAR *sb, RECT *rect)
+{
+ if (sb->nBarType == SB_HORZ)
+ {
+ GetRealHorzScrollRect(sb, rect);
+ }
+ else if (sb->nBarType == SB_VERT)
+ {
+ GetRealVertScrollRect(sb, rect);
+ }
+}
+
+//
+// All button code shoule be collected together
+//
+//
+#ifdef INCLUDE_BUTTONS
+
+//
+// Return the index of the button covering the specified point
+// rect - rectangle of the whole scrollbar area
+// pt - screen coords of the mouse
+// fReturnRect - do/don't modify the rect to return the button's area
+//
+static UINT GetHorzButtonFromPt(SCROLLBAR *sb, RECT *rect, POINT pt, BOOL fReturnRect)
+{
+ int leftpos = rect->left, rightpos = rect->right;
+ int i;
+ int butwidth;
+ SCROLLBUT *sbut = sb->sbButtons;
+
+ if ( !PtInRect(rect, pt))
+ return -1;
+
+ if (sb->fButVisibleAfter)
+ rightpos -= sb->nButSizeAfter;
+
+ for (i = 0; i < sb->nButtons; i++)
+ {
+ if (sb->fButVisibleBefore && sbut[i].uPlacement == SBBP_LEFT)
+ {
+ butwidth = GetSingleButSize(sb, &sbut[i]);
+
+ //if the current button is under the specified point
+ if (pt.x >= leftpos && pt.x < leftpos + butwidth)
+ {
+ //if the caller wants us to return the rectangle of the button
+ if (fReturnRect)
+ {
+ rect->left = leftpos;
+ rect->right = leftpos + butwidth;
+ }
+
+ return i;
+ }
+
+ leftpos += butwidth;
+ }
+ else if (sb->fButVisibleAfter && sbut[i].uPlacement == SBBP_RIGHT)
+ {
+ butwidth = GetSingleButSize(sb, &sbut[i]);
+
+ //if the current button is under the specified point
+ if (pt.x >= rightpos && pt.x < rightpos + butwidth)
+ {
+ //if the caller wants us to return the rectangle of the button
+ if (fReturnRect)
+ {
+ rect->left = rightpos;
+ rect->right = rightpos + butwidth;
+ }
+ return i;
+ }
+
+ rightpos += butwidth;
+ }
+ }
+
+ return -1;
+}
+
+
+static UINT GetVertButtonFromPt(SCROLLBAR *sb, RECT *rect, POINT pt, BOOL fReturnRect)
+{
+ UINT ret;
+ int temp;
+
+ //swap the X/Y coords
+ temp = pt.x;
+ pt.x = pt.y;
+ pt.y = temp;
+
+ //swap the rectangle
+ RotateRect(rect);
+
+ ret = GetHorzButtonFromPt(sb, rect, pt, fReturnRect);
+
+ RotateRect(rect);
+ return ret;
+}
+
+//
+//
+//
+static UINT GetButtonFromPt(SCROLLBAR *sb, RECT *rect, POINT pt, BOOL fReturnRect)
+{
+ if (sb->nBarType == SB_HORZ)
+ {
+ return GetHorzButtonFromPt(sb, rect, pt, fReturnRect);
+ }
+ else
+ {
+ return GetVertButtonFromPt(sb, rect, pt, fReturnRect);
+ }
+}
+
+//
+// Find the coordinates (in RECT format) of the specified button index
+//
+static UINT GetHorzButtonRectFromId(SCROLLBAR *sb, RECT *rect, UINT index)
+{
+ UINT i;
+ SCROLLBUT *sbut = sb->sbButtons;
+ int leftpos = rect->left, rightpos = rect->right;
+
+ if (sb->fButVisibleAfter)
+ rightpos -= sb->nButSizeAfter;
+
+ //find the particular button in question
+ for (i = 0; i < index; i++)
+ {
+ if (sb->fButVisibleBefore && sbut[i].uPlacement == SBBP_LEFT)
+ {
+ leftpos += GetSingleButSize(sb, &sbut[i]);
+ }
+ else if (sb->fButVisibleAfter && sbut[i].uPlacement == SBBP_RIGHT)
+ {
+ rightpos += GetSingleButSize(sb, &sbut[i]);
+ }
+ }
+
+ //now return the rectangle
+ if (sbut[i].uPlacement == SBBP_LEFT)
+ {
+ rect->left = leftpos;
+ rect->right = leftpos + GetSingleButSize(sb, &sbut[i]);
+ }
+ else
+ {
+ rect->left = rightpos;
+ rect->right = rightpos + GetSingleButSize(sb, &sbut[i]);
+ }
+
+ return 0;
+}
+
+static UINT GetVertButtonRectFromId(SCROLLBAR *sb, RECT *rect, UINT index)
+{
+ UINT ret;
+ RotateRect(rect);
+ ret = GetHorzButtonRectFromId(sb, rect, index);
+ RotateRect(rect);
+ return ret;
+}
+
+static UINT GetButtonRectFromId(SCROLLBAR *sb, RECT *rect, UINT index)
+{
+ if (sb->nBarType == SB_HORZ)
+ {
+ return GetHorzButtonRectFromId(sb, rect, index);
+ }
+ else
+ {
+ return GetVertButtonRectFromId(sb, rect, index);
+ }
+}
+#endif //INCLUDE_BUTTONS
+
+//
+// Left button click in the non-client area
+//
+static LRESULT NCLButtonDown(SCROLLWND *sw, HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+ RECT rect, winrect;
+ HDC hdc;
+ SCROLLBAR *sb;
+ POINT pt;
+
+ pt.x = LOWORD(lParam);
+ pt.y = HIWORD(lParam);
+
+ hwndCurCoolSB = hwnd;
+
+ //
+ // HORIZONTAL SCROLLBAR PROCESSING
+ //
+ if (wParam == HTHSCROLL)
+ {
+ uScrollTimerMsg = WM_HSCROLL;
+ uCurrentScrollbar = SB_HORZ;
+ sb = &sw->sbarHorz;
+
+ //get the total area of the normal Horz scrollbar area
+ GetHScrollRect(sw, hwnd, &rect);
+ uCurrentScrollPortion = GetHorzPortion(sb, &rect, LOWORD(lParam), HIWORD(lParam));
+ }
+ //
+ // VERTICAL SCROLLBAR PROCESSING
+ //
+ else if (wParam == HTVSCROLL)
+ {
+ uScrollTimerMsg = WM_VSCROLL;
+ uCurrentScrollbar = SB_VERT;
+ sb = &sw->sbarVert;
+
+ //get the total area of the normal Horz scrollbar area
+ GetVScrollRect(sw, hwnd, &rect);
+ uCurrentScrollPortion = GetVertPortion(sb, &rect, LOWORD(lParam), HIWORD(lParam));
+ }
+ //
+ // NORMAL PROCESSING
+ //
+ else
+ {
+ uCurrentScrollPortion = HTSCROLL_NONE;
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_NCLBUTTONDOWN, wParam, lParam);
+ }
+
+ //
+ // we can now share the same code for vertical
+ // and horizontal scrollbars
+ //
+ switch(uCurrentScrollPortion)
+ {
+ //inserted buttons to the left/right
+#ifdef INCLUDE_BUTTONS
+ case HTSCROLL_INSERTED:
+
+#ifdef HOT_TRACKING
+ KillTimer(hwnd, uMouseOverId);
+ uMouseOverId = 0;
+ uMouseOverScrollbar = COOLSB_NONE;
+#endif
+
+ //find the index of the button that has been clicked
+ //adjust the rectangle to give the button's rectangle
+ uCurrentButton = GetButtonFromPt(sb, &rect, pt, TRUE);
+
+ sbut = &sb->sbButtons[uCurrentButton];
+
+ //post a notification message
+ PostMouseNotify(hwnd, NM_CLICK, sb->nBarType, &rect, sbut->uCmdId, pt);
+
+ GetWindowRect(hwnd, &winrect);
+ OffsetRect(&rect, -winrect.left, -winrect.top);
+ hdc = GetWindowDC(hwnd);
+
+ DrawScrollButton(sbut, hdc, &rect, SBBS_PUSHED);
+
+ ReleaseDC(hwnd, hdc);
+
+ break;
+#endif //INCLUDE_BUTTONS
+
+ case HTSCROLL_THUMB:
+
+ //if the scrollbar is disabled, then do no further processing
+ if ( !IsScrollbarActive(sb))
+ return 0;
+
+ GetRealScrollRect(sb, &rect);
+ RotateRect0(sb, &rect);
+ CalcThumbSize(sb, &rect, &nThumbSize, &nThumbPos);
+ RotateRect0(sb, &rect);
+
+ //remember the bounding rectangle of the scrollbar work area
+ rcThumbBounds = rect;
+
+ sw->fThumbTracking = TRUE;
+ sb->scrollInfo.nTrackPos = sb->scrollInfo.nPos;
+
+ if (wParam == HTVSCROLL)
+ nThumbMouseOffset = pt.y - nThumbPos;
+ else
+ nThumbMouseOffset = pt.x - nThumbPos;
+
+ nLastPos = -sb->scrollInfo.nPos;
+ nThumbPos0 = nThumbPos;
+
+ //if (sb->fFlatScrollbar)
+ //{
+ GetWindowRect(hwnd, &winrect);
+ OffsetRect(&rect, -winrect.left, -winrect.top);
+ hdc = GetWindowDC(hwnd);
+ NCDrawScrollbar(sb, hwnd, hdc, &rect, HTSCROLL_THUMB);
+ ReleaseDC(hwnd, hdc);
+ //}
+
+ break;
+
+ //Any part of the scrollbar
+ case HTSCROLL_LEFT:
+ if (sb->fScrollFlags & ESB_DISABLE_LEFT) return 0;
+ else goto target1;
+
+ case HTSCROLL_RIGHT:
+ if (sb->fScrollFlags & ESB_DISABLE_RIGHT) return 0;
+ else goto target1;
+
+ goto target1;
+
+ case HTSCROLL_PAGELEFT: case HTSCROLL_PAGERIGHT:
+
+ target1:
+
+ //if the scrollbar is disabled, then do no further processing
+ if ( !IsScrollbarActive(sb))
+ break;
+
+ //ajust the horizontal rectangle to NOT include
+ //any inserted buttons
+ GetRealScrollRect(sb, &rect);
+
+ SendScrollMessage(hwnd, uScrollTimerMsg, uCurrentScrollPortion, 0);
+
+ // Check what area the mouse is now over :
+ // If the scroll thumb has moved under the mouse in response to
+ // a call to SetScrollPos etc, then we don't hilight the scrollbar margin
+ if (uCurrentScrollbar == SB_HORZ)
+ uScrollTimerPortion = GetHorzScrollPortion(sb, &rect, pt.x, pt.y);
+ else
+ uScrollTimerPortion = GetVertScrollPortion(sb, &rect, pt.x, pt.y);
+
+ GetWindowRect(hwnd, &winrect);
+ OffsetRect(&rect, -winrect.left, -winrect.top);
+ hdc = GetWindowDC(hwnd);
+
+#ifndef HOT_TRACKING
+ //if we aren't hot-tracking, then don't highlight
+ //the scrollbar thumb unless we click on it
+ if (uScrollTimerPortion == HTSCROLL_THUMB)
+ uScrollTimerPortion = HTSCROLL_NONE;
+#endif
+ NCDrawScrollbar(sb, hwnd, hdc, &rect, uScrollTimerPortion);
+ ReleaseDC(hwnd, hdc);
+
+ //Post the scroll message!!!!
+ uScrollTimerPortion = uCurrentScrollPortion;
+
+ //set a timer going on the first click.
+ //if this one expires, then we can start off a more regular timer
+ //to generate the auto-scroll behaviour
+ uScrollTimerId = SetTimer(hwnd, COOLSB_TIMERID1, COOLSB_TIMERINTERVAL1, 0);
+ break;
+ default:
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_NCLBUTTONDOWN, wParam, lParam);
+ //return 0;
+ }
+
+ SetCapture(hwnd);
+ return 0;
+}
+
+//
+// Left button released
+//
+static LRESULT LButtonUp(SCROLLWND *sw, HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+ RECT rect;
+ //UINT thisportion;
+ HDC hdc;
+ POINT pt;
+ RECT winrect;
+
+ //current scrollportion is the button that we clicked down on
+ if (uCurrentScrollPortion != HTSCROLL_NONE)
+ {
+ SCROLLBAR *sb = &sw->sbarHorz;
+ lParam = GetMessagePos();
+ ReleaseCapture();
+
+ GetWindowRect(hwnd, &winrect);
+ pt.x = LOWORD(lParam);
+ pt.y = HIWORD(lParam);
+
+ //emulate the mouse input on a scrollbar here...
+ if (uCurrentScrollbar == SB_HORZ)
+ {
+ //get the total area of the normal Horz scrollbar area
+ sb = &sw->sbarHorz;
+ GetHScrollRect(sw, hwnd, &rect);
+ }
+ else if (uCurrentScrollbar == SB_VERT)
+ {
+ //get the total area of the normal Horz scrollbar area
+ sb = &sw->sbarVert;
+ GetVScrollRect(sw, hwnd, &rect);
+ }
+
+ //we need to do different things depending on if the
+ //user is activating the scrollbar itself, or one of
+ //the inserted buttons
+ switch(uCurrentScrollPortion)
+ {
+#ifdef INCLUDE_BUTTONS
+ //inserted buttons are being clicked
+ case HTSCROLL_INSERTED:
+
+ //get the rectangle of the ACTIVE button
+ buttonIdx = GetButtonFromPt(sb, &rect, pt, FALSE);
+ GetButtonRectFromId(sb, &rect, uCurrentButton);
+
+ OffsetRect(&rect, -winrect.left, -winrect.top);
+
+ //Send the notification BEFORE we redraw, so the
+ //bitmap can be changed smoothly by the user if they require
+ if (uCurrentButton == buttonIdx)
+ {
+ SCROLLBUT *sbut = &sb->sbButtons[buttonIdx];
+ UINT cmdid = sbut->uCmdId;
+
+ if ((sbut->uButType & SBBT_MASK) == SBBT_TOGGLEBUTTON)
+ sbut->uState ^= 1;
+
+ //send a notify??
+ //only post a message if the command id is valid
+ if (cmdid != -1 && cmdid > 0)
+ SendMessage(hwnd, WM_COMMAND, MAKEWPARAM(cmdid, CSBN_CLICKED), 0);
+
+ //user might have deleted this button, so redraw whole area
+ NCPaint(sw, hwnd, 1, 0);
+ }
+ else
+ {
+ //otherwise, just redraw the button in its new state
+ hdc = GetWindowDC(hwnd);
+ DrawScrollButton(&sb->sbButtons[uCurrentButton], hdc, &rect, SBBS_NORMAL);
+ ReleaseDC(hwnd, hdc);
+ }
+
+ break;
+#endif // INCLUDE_BUTTONS
+
+ //The scrollbar is active
+ case HTSCROLL_LEFT: case HTSCROLL_RIGHT:
+ case HTSCROLL_PAGELEFT: case HTSCROLL_PAGERIGHT:
+ case HTSCROLL_NONE:
+
+ KillTimer(hwnd, uScrollTimerId);
+
+ case HTSCROLL_THUMB:
+
+ //In case we were thumb tracking, make sure we stop NOW
+ if (sw->fThumbTracking == TRUE)
+ {
+ SendScrollMessage(hwnd, uScrollTimerMsg, SB_THUMBPOSITION, nLastPos);
+ sw->fThumbTracking = FALSE;
+ }
+
+ //send the SB_ENDSCROLL message now that scrolling has finished
+ SendScrollMessage(hwnd, uScrollTimerMsg, SB_ENDSCROLL, 0);
+
+ //adjust the total scroll area to become where the scrollbar
+ //really is (take into account the inserted buttons)
+ GetRealScrollRect(sb, &rect);
+ OffsetRect(&rect, -winrect.left, -winrect.top);
+ hdc = GetWindowDC(hwnd);
+
+ //draw whichever scrollbar sb is
+ NCDrawScrollbar(sb, hwnd, hdc, &rect, HTSCROLL_NORMAL);
+
+ ReleaseDC(hwnd, hdc);
+ break;
+ }
+
+ //reset our state to default
+ uCurrentScrollPortion = HTSCROLL_NONE;
+ uScrollTimerPortion = HTSCROLL_NONE;
+ uScrollTimerId = 0;
+
+ uScrollTimerMsg = 0;
+ uCurrentScrollbar = COOLSB_NONE;
+
+ return 0;
+ }
+ else
+ {
+ /*
+ // Can't remember why I did this!
+ if (GetCapture() == hwnd)
+ {
+ ReleaseCapture();
+ }*/
+ }
+
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_LBUTTONUP, wParam, lParam);
+}
+
+//
+// This function is called whenever the mouse is moved and
+// we are dragging the scrollbar thumb about.
+//
+static LRESULT ThumbTrackHorz(SCROLLBAR *sbar, HWND hwnd, int x, int y)
+{
+ POINT pt;
+ RECT rc, winrect, rc2;
+ COLORREF crCheck1 = GetSBForeColor();
+ COLORREF crCheck2 = GetSBBackColor();
+ HDC hdc;
+ int thumbpos = nThumbPos;
+ int pos;
+ int siMaxMin = 0;
+ UINT flatflag = sbar->fFlatScrollbar ? BF_FLAT : 0;
+ BOOL fCustomDraw = FALSE;
+
+ SCROLLINFO *si;
+ si = &sbar->scrollInfo;
+
+ pt.x = x;
+ pt.y = y;
+
+ //draw the thumb at whatever position
+ rc = rcThumbBounds;
+
+ SetRect(&rc2, rc.left - THUMBTRACK_SNAPDIST*2, rc.top - THUMBTRACK_SNAPDIST,
+ rc.right + THUMBTRACK_SNAPDIST*2, rc.bottom + THUMBTRACK_SNAPDIST);
+
+ rc.left += GetScrollMetric(sbar, SM_CXHORZSB);
+ rc.right -= GetScrollMetric(sbar, SM_CXHORZSB);
+
+ //if the mouse is not in a suitable distance of the scrollbar,
+ //then "snap" the thumb back to its initial position
+#ifdef SNAP_THUMB_BACK
+ if ( !PtInRect(&rc2, pt))
+ {
+ thumbpos = nThumbPos0;
+ }
+ //otherwise, move the thumb to where the mouse is
+ else
+#endif //SNAP_THUMB_BACK
+ {
+ //keep the thumb within the scrollbar limits
+ thumbpos = pt.x - nThumbMouseOffset;
+ if (thumbpos < rc.left) thumbpos = rc.left;
+ if (thumbpos > rc.right - nThumbSize) thumbpos = rc.right - nThumbSize;
+ }
+
+ GetWindowRect(hwnd, &winrect);
+
+ if (sbar->nBarType == SB_VERT)
+ RotateRect(&winrect);
+
+ hdc = GetWindowDC(hwnd);
+
+//#ifdef CUSTOM_DRAW
+ fCustomDraw = PostCustomPrePostPaint(hwnd, hdc, sbar, CDDS_PREPAINT) == CDRF_SKIPDEFAULT;
+//#endif
+
+ OffsetRect(&rc, -winrect.left, -winrect.top);
+ thumbpos -= winrect.left;
+
+ //draw the margin before the thumb
+ SetRect(&rc2, rc.left, rc.top, thumbpos, rc.bottom);
+ RotateRect0(sbar, &rc2);
+
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, sbar->nBarType, &rc2, SB_PAGELEFT, 0, 0, 0);
+ else
+ DrawCheckedRect(hdc, &rc2, crCheck1, crCheck2);
+
+ RotateRect0(sbar, &rc2);
+
+ //draw the margin after the thumb
+ SetRect(&rc2, thumbpos+nThumbSize, rc.top, rc.right, rc.bottom);
+
+ RotateRect0(sbar, &rc2);
+
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, sbar->nBarType, &rc2, SB_PAGERIGHT, 0, 0, 0);
+ else
+ DrawCheckedRect(hdc, &rc2, crCheck1, crCheck2);
+
+ RotateRect0(sbar, &rc2);
+
+ //finally draw the thumb itelf. This is how it looks on win2000, anyway
+ SetRect(&rc2, thumbpos, rc.top, thumbpos+nThumbSize, rc.bottom);
+
+ RotateRect0(sbar, &rc2);
+
+ if (fCustomDraw)
+ PostCustomDrawNotify(hwnd, hdc, sbar->nBarType, &rc2, SB_THUMBTRACK, TRUE, TRUE, FALSE);
+ else
+ {
+
+#ifdef FLAT_SCROLLBARS
+ if (sbar->fFlatScrollbar)
+ PaintRect(hdc, &rc2, GetSysColor(COLOR_3DSHADOW));
+ else
+#endif
+ {
+ DrawBlankButton(hdc, &rc2, flatflag);
+ }
+ }
+
+ RotateRect0(sbar, &rc2);
+ ReleaseDC(hwnd, hdc);
+
+ //post a SB_TRACKPOS message!!!
+ siMaxMin = si->nMax - si->nMin;
+
+ if (siMaxMin > 0)
+ pos = MulDiv(thumbpos-rc.left, siMaxMin-si->nPage + 1, rc.right-rc.left-nThumbSize);
+ else
+ pos = thumbpos - rc.left;
+
+ if (pos != nLastPos)
+ {
+ si->nTrackPos = pos;
+ SendScrollMessage(hwnd, uScrollTimerMsg, SB_THUMBTRACK, pos);
+ }
+
+ nLastPos = pos;
+
+//#ifdef CUSTOM_DRAW
+ PostCustomPrePostPaint(hwnd, hdc, sbar, CDDS_POSTPAINT);
+//#endif
+
+ return 0;
+}
+
+//
+// remember to rotate the thumb bounds rectangle!!
+//
+static LRESULT ThumbTrackVert(SCROLLBAR *sb, HWND hwnd, int x, int y)
+{
+ //sw->swapcoords = TRUE;
+ RotateRect(&rcThumbBounds);
+ ThumbTrackHorz(sb, hwnd, y, x);
+ RotateRect(&rcThumbBounds);
+ //sw->swapcoords = FALSE;
+
+ return 0;
+}
+
+//
+// Called when we have set the capture from the NCLButtonDown(...)
+//
+static LRESULT MouseMove(SCROLLWND *sw, HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+ RECT rect;
+ UINT thisportion;
+ HDC hdc;
+ static UINT lastportion = 0;
+ static UINT lastbutton = 0;
+ POINT pt;
+ RECT winrect;
+ UINT buttonIdx = 0;
+
+ if (sw->fThumbTracking == TRUE)
+ {
+ int x, y;
+ lParam = GetMessagePos();
+ x = LOWORD(lParam);
+ y = HIWORD(lParam);
+
+ if (uCurrentScrollbar == SB_HORZ)
+ return ThumbTrackHorz(&sw->sbarHorz, hwnd, x,y);
+
+ else if (uCurrentScrollbar == SB_VERT)
+ return ThumbTrackVert(&sw->sbarVert, hwnd, x,y);
+ }
+
+ if (uCurrentScrollPortion == HTSCROLL_NONE)
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_MOUSEMOVE, wParam, lParam);
+
+ LPARAM nlParam;
+ SCROLLBAR *sb = &sw->sbarHorz;
+
+ nlParam = GetMessagePos();
+
+ GetWindowRect(hwnd, &winrect);
+
+ pt.x = LOWORD(nlParam);
+ pt.y = HIWORD(nlParam);
+
+ //emulate the mouse input on a scrollbar here...
+ if (uCurrentScrollbar == SB_HORZ)
+ {
+ sb = &sw->sbarHorz;
+ }
+ else if (uCurrentScrollbar == SB_VERT)
+ {
+ sb = &sw->sbarVert;
+ }
+
+ //get the total area of the normal scrollbar area
+ GetScrollRect(sw, sb->nBarType, hwnd, &rect);
+
+ //see if we clicked in the inserted buttons / normal scrollbar
+ //thisportion = GetPortion(sb, hwnd, &rect, LOWORD(lParam), HIWORD(lParam));
+ thisportion = GetPortion(sb, &rect, pt.x, pt.y);
+
+ //we need to do different things depending on if the
+ //user is activating the scrollbar itself, or one of
+ //the inserted buttons
+ switch(uCurrentScrollPortion) {
+#ifdef INCLUDE_BUTTONS
+ //inserted buttons are being clicked
+ case HTSCROLL_INSERTED:
+
+ //find the index of the button that has been clicked
+ //Don't adjust the rectangle though
+ buttonIdx = GetButtonFromPt(sb, &rect, pt, FALSE);
+
+ //Get the rectangle of the active button
+ GetButtonRectFromId(sb, &rect, uCurrentButton);
+
+ //if the button to the LEFT of the current
+ //button is resizable, then resize it
+#ifdef RESIZABLE_BUTTONS
+ if (uCurrentButton > 0)
+ {
+ sbut = &sb->sbButtons[uCurrentButton - 1];
+
+ //only resize if BOTH buttons are on same side of scrollbar
+ if (sbut->uPlacement == (sbut+1)->uPlacement && (sbut->uButType & SBBM_RESIZABLE))
+ {
+ int oldsize = sbut->nSize;
+ int butsize1, butsize2;
+ RECT rect2;
+ int scrollsize;
+
+ if (uCurrentScrollbar == SB_HORZ)
+ {
+ rect.left -= GetSingleButSize(sb, sbut);
+ sbut->nSize = pt.x - rect.left;
+ }
+ else
+ {
+ rect.top -= GetSingleButSize(sb, sbut);
+ sbut->nSize = pt.y - rect.top;
+ }
+
+ //if (sbut->nSize < 0) sbut->nSize = 0;
+ if (sbut->nSize < (int)sbut->nMinSize)
+ sbut->nSize = sbut->nMinSize;
+
+ if ((UINT)sbut->nSize > (UINT)sbut->nMaxSize)
+ sbut->nSize = sbut->nMaxSize;
+
+ GetScrollRect(sw, uCurrentScrollbar, hwnd, &rect2);
+
+ if (uCurrentScrollbar == SB_HORZ)
+ scrollsize = rect2.right-rect2.left;
+ else
+ scrollsize = rect2.bottom-rect2.top;
+
+ butsize1 = GetButtonSize(sb, hwnd, SBBP_LEFT);
+ butsize2 = GetButtonSize(sb, hwnd, SBBP_RIGHT);
+
+ //adjust the button size if it gets too big
+ if (butsize1 + butsize2 > scrollsize - MINSCROLLSIZE)
+ {
+ sbut->nSize -= (butsize1+butsize2) - (scrollsize - MINSCROLLSIZE);
+ }
+
+ //remember what size the USER set the button to
+ sbut->nSizeReserved = sbut->nSize;
+ NCPaint(sw, hwnd, 1, 0);
+ return 0;
+ }
+ }
+#endif //RESIZABLE_BUTTONS
+
+ OffsetRect(&rect, -winrect.left, -winrect.top);
+
+ hdc = GetWindowDC(hwnd);
+
+ //if the button under the mouse is not the active button,
+ //then display the active button in its normal state
+ if (buttonIdx != uCurrentButton
+ //include this if toggle buttons always stay depressed
+ //if they are being activated
+ && (sb->sbButtons[uCurrentButton].uButType & SBBT_MASK) != SBBT_TOGGLEBUTTON)
+ {
+ if (lastbutton != buttonIdx)
+ DrawScrollButton(&sb->sbButtons[uCurrentButton], hdc, &rect, SBBS_NORMAL);
+ }
+ //otherwise, depress the active button if the mouse is over
+ //it (just like a normal scroll button works)
+ else
+ {
+ if (lastbutton != buttonIdx)
+ DrawScrollButton(&sb->sbButtons[uCurrentButton], hdc, &rect, SBBS_PUSHED);
+ }
+
+ ReleaseDC(hwnd, hdc);
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_MOUSEMOVE, wParam, lParam);
+ //break;
+
+#endif //INCLUDE_BUTTONS
+
+ //The scrollbar is active
+ case HTSCROLL_LEFT: case HTSCROLL_RIGHT:case HTSCROLL_THUMB:
+ case HTSCROLL_PAGELEFT: case HTSCROLL_PAGERIGHT:
+ case HTSCROLL_NONE:
+ //adjust the total scroll area to become where the scrollbar
+ //really is (take into account the inserted buttons)
+ GetRealScrollRect(sb, &rect);
+
+ OffsetRect(&rect, -winrect.left, -winrect.top);
+ hdc = GetWindowDC(hwnd);
+
+ if (thisportion != uCurrentScrollPortion)
+ {
+ uScrollTimerPortion = HTSCROLL_NONE;
+
+ if (lastportion != thisportion)
+ NCDrawScrollbar(sb, hwnd, hdc, &rect, HTSCROLL_NORMAL);
+ }
+ //otherwise, draw the button in its depressed / clicked state
+ else
+ {
+ uScrollTimerPortion = uCurrentScrollPortion;
+
+ if (lastportion != thisportion)
+ NCDrawScrollbar(sb, hwnd, hdc, &rect, thisportion);
+ }
+
+ ReleaseDC(hwnd, hdc);
+ break;
+ }
+
+ lastportion = thisportion;
+ lastbutton = buttonIdx;
+ return 0;
+}
+
+#ifdef INCLUDE_BUTTONS
+#ifdef RESIZABLE_BUTTONS
+//
+// Any resizable buttons must be shrunk to fit if the window is made too small
+//
+static void ResizeButtonsToFit(SCROLLWND *sw, SCROLLBAR *sbar, HWND hwnd)
+{
+ int butsize1, butsize2;
+ RECT rc;
+ int scrollsize;
+ int i;
+ SCROLLBUT *sbut;
+
+ //make sure that the scrollbar can fit into space, by
+ //shrinking any resizable buttons
+ GetScrollRect(sw, sbar->nBarType, hwnd, &rc);
+
+ if (sbar->nBarType == SB_HORZ)
+ scrollsize = rc.right-rc.left;
+ else
+ scrollsize = rc.bottom-rc.top;
+
+ //restore any resizable buttons to their user-defined sizes,
+ //before shrinking them to fit. This means when we make the window
+ //bigger, the buttons will restore to their initial sizes
+ for (i = 0; i < sbar->nButtons; i++)
+ {
+ sbut = &sbar->sbButtons[i];
+ if (sbut->uButType & SBBM_RESIZABLE)
+ {
+ sbut->nSize = sbut->nSizeReserved;
+ }
+ }
+
+ butsize1 = GetButtonSize(sbar, hwnd, SBBP_LEFT);
+ butsize2 = GetButtonSize(sbar, hwnd, SBBP_RIGHT);
+
+ if (butsize1 + butsize2 > scrollsize - MINSCROLLSIZE)
+ {
+ i = 0;
+ while(i < sbar->nButtons &&
+ butsize1 + butsize2 > scrollsize - MINSCROLLSIZE)
+ {
+ sbut = &sbar->sbButtons[i++];
+ if (sbut->uButType & SBBM_RESIZABLE)
+ {
+ int oldsize = sbut->nSize;
+ sbut->nSize -= (butsize1+butsize2) - (scrollsize-MINSCROLLSIZE);
+
+ if (sbut->nSize < (int)sbut->nMinSize)
+ sbut->nSize = sbut->nMinSize;
+
+ if ((UINT)sbut->nSize > (UINT)sbut->nMaxSize)
+ sbut->nSize = sbut->nMaxSize;
+
+
+ butsize1 -= (oldsize - sbut->nSize);
+ }
+ }
+ }
+
+}
+#endif
+#endif
+
+//
+// We must allocate from in the non-client area for our scrollbars
+// Call the default window procedure first, to get the borders (if any)
+// allocated some space, then allocate the space for the scrollbars
+// if they fit
+//
+static LRESULT NCCalcSize(SCROLLWND *sw, HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+ NCCALCSIZE_PARAMS *nccsp;
+ RECT *rect;
+ RECT oldrect;
+ SCROLLBAR *sb;
+ LRESULT ret;
+ DWORD dwStyle;
+
+ //Regardless of the value of fCalcValidRects, the first rectangle
+ //in the array specified by the rgrc structure member of the
+ //NCCALCSIZE_PARAMS structure contains the coordinates of the window,
+ //so we can use the exact same code to modify this rectangle, when
+ //wParam is TRUE and when it is FALSE.
+ nccsp = (NCCALCSIZE_PARAMS *)lParam;
+ rect = &nccsp->rgrc[0];
+ oldrect = *rect;
+
+ dwStyle = GetWindowLongPtr(hwnd, GWL_STYLE);
+
+ // TURN OFF SCROLL-STYLES.
+ if ( dwStyle & (WS_VSCROLL|WS_HSCROLL))
+ {
+ sw->bPreventStyleChange = TRUE;
+ SetWindowLongPtr(hwnd, GWL_STYLE, dwStyle & ~(WS_VSCROLL|WS_HSCROLL));
+ }
+
+ //call the default procedure to get the borders allocated
+ ret = mir_callNextSubclass(hwnd, CoolSBWndProc, WM_NCCALCSIZE, wParam, lParam);
+
+ // RESTORE PREVIOUS STYLES (if present at all)
+ if ( dwStyle & (WS_VSCROLL|WS_HSCROLL))
+ {
+ SetWindowLongPtr(hwnd, GWL_STYLE, dwStyle);
+ sw->bPreventStyleChange = FALSE;
+ }
+
+ // calculate what the size of each window border is,
+ sw->cxLeftEdge = rect->left - oldrect.left;
+ sw->cxRightEdge = oldrect.right - rect->right;
+ sw->cyTopEdge = rect->top - oldrect.top;
+ sw->cyBottomEdge = oldrect.bottom - rect->bottom;
+
+ sb = &sw->sbarHorz;
+
+ //if there is room, allocate some space for the horizontal scrollbar
+ //NOTE: Change the ">" to a ">=" to make the horz bar totally fill the
+ //window before disappearing
+ if ((sb->fScrollFlags & CSBS_VISIBLE) &&
+#ifdef COOLSB_FILLWINDOW
+ rect->bottom - rect->top >= GetScrollMetric(sb, SM_CYHORZSB))
+#else
+ rect->bottom - rect->top > GetScrollMetric(sb, SM_CYHORZSB))
+#endif
+ {
+ rect->bottom -= GetScrollMetric(sb, SM_CYHORZSB);
+ sb->fScrollVisible = TRUE;
+ }
+ else
+ sb->fScrollVisible = FALSE;
+
+ sb = &sw->sbarVert;
+
+ //if there is room, allocate some space for the vertical scrollbar
+ if ((sb->fScrollFlags & CSBS_VISIBLE) &&
+ rect->right - rect->left >= GetScrollMetric(sb, SM_CXVERTSB))
+ {
+ if (sw->fLeftScrollbar)
+ rect->left += GetScrollMetric(sb, SM_CXVERTSB);
+ else
+ rect->right -= GetScrollMetric(sb, SM_CXVERTSB);
+
+ sb->fScrollVisible = TRUE;
+ }
+ else
+ sb->fScrollVisible = FALSE;
+
+#ifdef INCLUDE_BUTTONS
+#ifdef RESIZABLE_BUTTONS
+ ResizeButtonsToFit(sw, &sw->sbarHorz, hwnd);
+ ResizeButtonsToFit(sw, &sw->sbarVert, hwnd);
+#endif
+#endif
+
+ //don't return a value unless we actually modify the other rectangles
+ //in the NCCALCSIZE_PARAMS structure. In this case, we return 0
+ //no matter what the value of fCalcValidRects is
+ return ret;//FALSE;
+}
+
+//
+// used for hot-tracking over the scroll buttons
+//
+static LRESULT NCMouseMove(SCROLLWND *sw, HWND hwnd, WPARAM wHitTest, LPARAM lParam)
+{
+ //install a timer for the mouse-over events, if the mouse moves
+ //over one of the scrollbars
+#ifdef HOT_TRACKING
+ hwndCurCoolSB = hwnd;
+ if (wHitTest == HTHSCROLL)
+ {
+ if (uMouseOverScrollbar == SB_HORZ)
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_NCMOUSEMOVE, wHitTest, lParam);
+
+ uLastHitTestPortion = HTSCROLL_NONE;
+ uHitTestPortion = HTSCROLL_NONE;
+ GetScrollRect(sw, SB_HORZ, hwnd, &MouseOverRect);
+ uMouseOverScrollbar = SB_HORZ;
+ uMouseOverId = SetTimer(hwnd, COOLSB_TIMERID3, COOLSB_TIMERINTERVAL3, 0);
+
+ NCPaint(sw, hwnd, 1, 0);
+ }
+ else if (wHitTest == HTVSCROLL)
+ {
+ if (uMouseOverScrollbar == SB_VERT)
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_NCMOUSEMOVE, wHitTest, lParam);
+
+ uLastHitTestPortion = HTSCROLL_NONE;
+ uHitTestPortion = HTSCROLL_NONE;
+ GetScrollRect(sw, SB_VERT, hwnd, &MouseOverRect);
+ uMouseOverScrollbar = SB_VERT;
+ uMouseOverId = SetTimer(hwnd, COOLSB_TIMERID3, COOLSB_TIMERINTERVAL3, 0);
+
+ NCPaint(sw, hwnd, 1, 0);
+ }
+
+#endif //HOT_TRACKING
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_NCMOUSEMOVE, wHitTest, lParam);
+}
+
+//
+// Timer routine to generate scrollbar messages
+//
+static LRESULT CoolSB_Timer(SCROLLWND *swnd, HWND hwnd, WPARAM wTimerId, LPARAM lParam)
+{
+ //let all timer messages go past if we don't have a timer installed ourselves
+ if (uScrollTimerId == 0 && uMouseOverId == 0)
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_TIMER, wTimerId, lParam);
+
+#ifdef HOT_TRACKING
+ //mouse-over timer
+ if (wTimerId == COOLSB_TIMERID3)
+ {
+ POINT pt;
+ RECT rect, winrect;
+ HDC hdc;
+ SCROLLBAR *sbar;
+
+ if (swnd->fThumbTracking)
+ return 0;
+
+ //if the mouse moves outside the current scrollbar,
+ //then kill the timer..
+ GetCursorPos(&pt);
+
+ if ( !PtInRect(&MouseOverRect, pt))
+ {
+ KillTimer(hwnd, uMouseOverId);
+ uMouseOverId = 0;
+ uMouseOverScrollbar = COOLSB_NONE;
+ uLastHitTestPortion = HTSCROLL_NONE;
+
+ uHitTestPortion = HTSCROLL_NONE;
+ NCPaint(swnd, hwnd, 1, 0);
+ }
+ else
+ {
+ if (uMouseOverScrollbar == SB_HORZ)
+ {
+ sbar = &swnd->sbarHorz;
+ uHitTestPortion = GetHorzPortion(sbar, &MouseOverRect, pt.x, pt.y);
+ }
+ else
+ {
+ sbar = &swnd->sbarVert;
+ uHitTestPortion = GetVertPortion(sbar, &MouseOverRect, pt.x, pt.y);
+ }
+
+ if (uLastHitTestPortion != uHitTestPortion)
+ {
+ rect = MouseOverRect;
+ GetRealScrollRect(sbar, &rect);
+
+ GetWindowRect(hwnd, &winrect);
+ OffsetRect(&rect, -winrect.left, -winrect.top);
+
+ hdc = GetWindowDC(hwnd);
+ NCDrawScrollbar(sbar, hwnd, hdc, &rect, HTSCROLL_NONE);
+ ReleaseDC(hwnd, hdc);
+ }
+
+ uLastHitTestPortion = uHitTestPortion;
+ }
+
+ return 0;
+ }
+#endif // HOT_TRACKING
+
+ //if the first timer goes off, then we can start a more
+ //regular timer interval to auto-generate scroll messages
+ //this gives a slight pause between first pressing the scroll arrow, and the
+ //actual scroll starting
+ if (wTimerId == COOLSB_TIMERID1)
+ {
+ KillTimer(hwnd, uScrollTimerId);
+ uScrollTimerId = SetTimer(hwnd, COOLSB_TIMERID2, COOLSB_TIMERINTERVAL2, 0);
+ return 0;
+ }
+ //send the scrollbar message repeatedly
+ else if (wTimerId == COOLSB_TIMERID2)
+ {
+ //need to process a spoof WM_MOUSEMOVE, so that
+ //we know where the mouse is each time the scroll timer goes off.
+ //This is so we can stop sending scroll messages if the thumb moves
+ //under the mouse.
+ POINT pt;
+ GetCursorPos(&pt);
+ ScreenToClient(hwnd, &pt);
+
+ MouseMove(swnd, hwnd, MK_LBUTTON, MAKELPARAM(pt.x, pt.y));
+
+ if (uScrollTimerPortion != HTSCROLL_NONE)
+ SendScrollMessage(hwnd, uScrollTimerMsg, uScrollTimerPortion, 0);
+
+ return 0;
+ }
+
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_TIMER, wTimerId, lParam);
+}
+
+//
+// We must intercept any calls to SetWindowLongPtr, to check if
+// left-scrollbars are taking effect or not
+//
+static LRESULT CoolSB_StyleChange(SCROLLWND *swnd, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+ STYLESTRUCT *ss = (STYLESTRUCT *)lParam;
+
+ if (wParam == GWL_EXSTYLE)
+ {
+ if (ss->styleNew & WS_EX_LEFTSCROLLBAR)
+ swnd->fLeftScrollbar = TRUE;
+ else
+ swnd->fLeftScrollbar = FALSE;
+ }
+
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, msg, wParam, lParam);
+}
+
+static UINT curTool = -1;
+static LRESULT CoolSB_Notify(SCROLLWND* /*swnd*/, HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+#ifdef COOLSB_TOOLTIPS
+
+ NMTTDISPINFO *nmdi = (NMTTDISPINFO *)lParam;
+
+ if (nmdi->hdr.hwndFrom == swnd->hwndToolTip &&
+ nmdi->hdr.code == TTN_GETDISPINFO)
+ {
+ //convert the tooltip notify from a "ISHWND" style
+ //request to an id-based request.
+ //We do this because our tooltip is a window-style
+ //tip, with no tools, and the GETDISPINFO request must
+ //indicate which button to retrieve the text for
+ //nmdi->hdr.idFrom = curTool;
+ nmdi->hdr.idFrom = curTool;
+ nmdi->hinst = GetModuleHandle(0);
+ nmdi->uFlags &= ~TTF_IDISHWND;
+ }
+#endif //COOLSB_TOOLTIPS
+
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_NOTIFY, wParam, lParam);
+}
+
+static LRESULT SendToolTipMessage0(HWND hwndTT, UINT message, WPARAM wParam, LPARAM lParam)
+{
+ return SendMessage(hwndTT, message, wParam, lParam);
+}
+
+#ifdef COOLSB_TOOLTIPS
+#define SendToolTipMessage SendToolTipMessage0
+#else
+#define SendToolTipMessage 1 ? (void)0 : SendToolTipMessage0
+#endif
+
+
+//
+// We must intercept any calls to SetWindowLongPtr, to make sure that
+// the user does not set the WS_VSCROLL or WS_HSCROLL styles
+//
+static LRESULT CoolSB_SetCursor(SCROLLWND* /*swnd*/, HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+#ifdef INCLUDE_BUTTONS
+ UINT lo = LOWORD(lParam);
+ UINT hi = HIWORD(lParam);
+ UINT xy;
+ RECT rect;
+ SCROLLBAR *sbar;
+ SCROLLBUT *sbut;
+ POINT pt;
+ UINT id;
+ static UINT lastid;
+
+#ifdef HIDE_CURSOR_AFTER_MOUSEUP
+ static UINT lastmsg;
+ if (lastmsg == WM_LBUTTONDOWN)
+ {
+ lastmsg = hi;
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_SETCURSOR, wParam, lParam);
+ }
+ else
+ lastmsg = hi;
+#endif
+
+ //if we are over either or our scrollbars
+ if (lo == HTHSCROLL || lo == HTVSCROLL)
+ {
+ xy = GetMessagePos();
+ pt.x = LOWORD(xy);
+ pt.y = HIWORD(xy);
+
+ if (lo == HTHSCROLL)
+ {
+ sbar = &swnd->sbarHorz;
+ GetScrollRect(swnd, SB_HORZ, hwnd, &rect);
+ id = GetHorzPortion(sbar, hwnd, &rect, pt.x, pt.y);
+ }
+ else
+ {
+ sbar = &swnd->sbarVert;
+ GetScrollRect(swnd, SB_VERT, hwnd, &rect);
+ id = GetVertPortion(sbar, hwnd, &rect, pt.x, pt.y);
+ }
+
+ if (id != HTSCROLL_INSERTED)
+ {
+ if (swnd->hwndToolTip != 0)
+ {
+ SendToolTipMessage(swnd->hwndToolTip, TTM_ACTIVATE, FALSE, 0);
+ SendToolTipMessage(swnd->hwndToolTip, TTM_POP, 0, 0);
+ }
+
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_SETCURSOR, wParam, lParam);
+ }
+
+ if (swnd->hwndToolTip != 0)
+ {
+ SendToolTipMessage(swnd->hwndToolTip, TTM_ACTIVATE, TRUE, 0);
+ }
+
+ //set the cursor if one has been specified
+ if ((id = GetButtonFromPt(sbar, &rect, pt, TRUE)) != -1)
+ {
+ sbut = &sbar->sbButtons[id];
+ curTool = sbut->uCmdId;
+
+ if (lastid != id && swnd->hwndToolTip != 0)
+ {
+ if (IsWindowVisible(swnd->hwndToolTip))
+ SendToolTipMessage(swnd->hwndToolTip, TTM_UPDATE, TRUE, 0);
+ }
+
+ lastid = id;
+
+ if (sbut->hCurs != 0)
+ {
+ SetCursor(sbut->hCurs);
+ return 0;
+ }
+ }
+ else
+ {
+ curTool = -1;
+ lastid = -1;
+ }
+ }
+ else if (swnd->hwndToolTip != 0)
+ {
+ SendToolTipMessage(swnd->hwndToolTip, TTM_ACTIVATE, FALSE, 0);
+ SendToolTipMessage(swnd->hwndToolTip, TTM_POP, 0, 0);
+ }
+
+#endif //INCLUDE_BUTTONS
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, WM_SETCURSOR, wParam, lParam);
+}
+
+
+//
+// Send the specified message to the tooltip control
+//
+static void __stdcall RelayMouseEvent(HWND hwnd, HWND hwndToolTip, UINT event)
+{
+#ifdef COOLSB_TOOLTIPS
+ MSG msg;
+
+ CoolSB_ZeroMemory(&msg, sizeof(MSG));
+ msg.hwnd = hwnd;
+ msg.message = event;
+
+ SendMessage(hwndToolTip, TTM_RELAYEVENT, 0, (LONG)&msg);
+#else
+ UNREFERENCED_PARAMETER(hwnd);
+ UNREFERENCED_PARAMETER(hwndToolTip);
+ UNREFERENCED_PARAMETER(event);
+#endif
+}
+
+
+//
+// CoolScrollbar subclass procedure.
+// Handle all messages needed to mimick normal windows scrollbars
+//
+LRESULT CALLBACK CoolSBWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
+{
+ SCROLLWND *swnd = GetScrollWndFromHwnd(hwnd);
+ static int count;
+
+ switch(message) {
+ case WM_NCDESTROY:
+ //this should NEVER be called, because the user
+ //should have called Uninitialize() themselves.
+
+ //However, if the user tries to call Uninitialize()..
+ //after this window is destroyed, this window's entry in the lookup
+ //table will not be there, and the call will fail
+ UninitializeCoolSB(hwnd);
+
+ //we must call the original window procedure, otherwise it
+ //will never get the WM_NCDESTROY message, and it wouldn't
+ //be able to clean up etc.
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, message, wParam, lParam);
+
+ case WM_NCCALCSIZE:
+ return NCCalcSize(swnd, hwnd, wParam, lParam);
+
+ case WM_NCPAINT:
+ return NCPaint(swnd, hwnd, wParam, lParam);
+
+ case WM_NCHITTEST:
+ return NCHitTest(swnd, hwnd, wParam, lParam);
+
+ case WM_NCRBUTTONDOWN: case WM_NCRBUTTONUP:
+ case WM_NCMBUTTONDOWN: case WM_NCMBUTTONUP:
+ RelayMouseEvent(hwnd, swnd->hwndToolTip, (WM_MOUSEMOVE-WM_NCMOUSEMOVE) + (message));
+ if (wParam == HTHSCROLL || wParam == HTVSCROLL)
+ return 0;
+ else
+ break;
+
+ case WM_NCLBUTTONDBLCLK:
+ //TRACE("WM_NCLBUTTONDBLCLK %d\n", count++);
+ if (wParam == HTHSCROLL || wParam == HTVSCROLL)
+ return NCLButtonDown(swnd, hwnd, wParam, lParam);
+ else
+ break;
+
+ case WM_NCLBUTTONDOWN:
+ //TRACE("WM_NCLBUTTONDOWN%d\n", count++);
+ RelayMouseEvent(hwnd, swnd->hwndToolTip, WM_LBUTTONDOWN);
+ return NCLButtonDown(swnd, hwnd, wParam, lParam);
+
+
+ case WM_LBUTTONUP:
+ //TRACE("WM_LBUTTONUP %d\n", count++);
+ RelayMouseEvent(hwnd, swnd->hwndToolTip, WM_LBUTTONUP);
+ return LButtonUp(swnd, hwnd, wParam, lParam);
+
+ case WM_NOTIFY:
+ return CoolSB_Notify(swnd, hwnd, wParam, lParam);
+
+ //Mouse moves are received when we set the mouse capture,
+ //even when the mouse moves over the non-client area
+ case WM_MOUSEMOVE:
+ //TRACE("WM_MOUSEMOVE %d\n", count++);
+ return MouseMove(swnd, hwnd, wParam, lParam);
+
+ case WM_TIMER:
+ return CoolSB_Timer(swnd, hwnd, wParam, lParam);
+
+ //case WM_STYLECHANGING:
+ // return CoolSB_StyleChange(swnd, hwnd, WM_STYLECHANGING, wParam, lParam);
+ case WM_STYLECHANGED:
+
+ if (swnd->bPreventStyleChange)
+ {
+ // the NCPAINT handler has told us to eat this message!
+ return 0;
+ }
+ else
+ {
+ if (message == WM_STYLECHANGED)
+ return CoolSB_StyleChange(swnd, hwnd, WM_STYLECHANGED, wParam, lParam);
+ else
+ break;
+ }
+
+ case WM_NCMOUSEMOVE:
+ {
+ static LONG_PTR lastpos = -1;
+
+ //TRACE("WM_NCMOUSEMOVE %d\n", count++);
+
+ //The problem with NCMOUSEMOVE is that it is sent continuously
+ //even when the mouse is stationary (under win2000 / win98)
+ //
+ //Tooltips don't like being sent a continous stream of mouse-moves
+ //if the cursor isn't moving, because they will think that the mouse
+ //is moving position, and the internal timer will never expire
+ //
+ if (lastpos != lParam)
+ {
+ RelayMouseEvent(hwnd, swnd->hwndToolTip, WM_MOUSEMOVE);
+ lastpos = lParam;
+ }
+ }
+
+ return NCMouseMove(swnd, hwnd, wParam, lParam);
+
+
+ case WM_SETCURSOR:
+ return CoolSB_SetCursor(swnd, hwnd, wParam, lParam);
+
+ case WM_CAPTURECHANGED:
+ break;
+
+ default:
+ break;
+ }
+
+ return mir_callNextSubclass(hwnd, CoolSBWndProc, message, wParam, lParam);
+}
+
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