testcustdraw.c
上传用户:xhri001
上传日期:2022-07-04
资源大小:99k
文件大小:10k
- #include <windows.h>
- #include <commctrl.h>
- #include "..coolsbcoolscroll.h"
- UINT CALLBACK CoolSB_DrawProc(HDC hdc, UINT uCmdId, UINT uButflags, RECT *rect);
- extern HWND hwndScroll;
- extern BOOL fCustomDraw ;
- extern BOOL fButtons ;
- extern BOOL fThumbAlways ;
- extern HDC hdcSkin;
- HPEN hpen, oldpen;
- HPEN whitepen;
- HFONT hfont;
- HENHMETAFILE hemf=0;
- typedef struct
- {
- int x, y;
- int width, height;
- } CustomDrawTable;
- //
- // Define a set of structures which describe
- // where-abouts the source "textures" are in the
- // custom draw bitmap. We need to know x, y, width and height
- // for each scrollbar segment.
- //
- CustomDrawTable cdt_horz_normal[] =
- {
- { 0, 0, 18, 18 }, //left arrow NORMAL
- { 0, 19, 18, 18 }, //right arrow NORMAL
- { 0, 83, 1, 18 }, //page left NORMAL
- { 0, 83, 1, 18 }, //page right NORMAL
-
- { -1, -1, -1, -1 }, //padding
- { 54, 0, 9, 18 }, //horz thumb (left)
- { 54+9, 0, 1, 18 }, //horz thumb (middle)
- { 54+9, 0, 9, 18 }, //horz thumb (right)
- };
- CustomDrawTable cdt_horz_hot[] =
- {
- { 18, 0, 18, 18 }, //left arrow ACTIVE
- { 18, 19, 18, 18 }, //right arrow ACTIVE
- { 4, 83, 1, 18 }, //page left ACTIVE
- { 4, 83, 1, 18 }, //page right ACTIVE
- { -1, -1, -1, -1 }, //padding
- { 54, 19, 9, 18 }, //horz thumb (left)
- { 54+9, 19, 1, 18 }, //horz thumb (middle)
- { 54+9, 19, 9, 18 }, //horz thumb (right)
- };
- CustomDrawTable cdt_horz_active[] =
- {
- { 36, 0, 18, 18 }, //left arrow ACTIVE
- { 36, 19, 18, 18 }, //right arrow ACTIVE
- { 4, 83, 1, 18 }, //page left ACTIVE
- { 4, 83, 1, 18 }, //page right ACTIVE
- { -1, -1, -1, -1 }, //padding
- { 54, 38, 9, 18 }, //horz thumb (left)
- { 54+9, 38, 1, 18 }, //horz thumb (middle)
- { 54+9, 38, 9, 18 }, //horz thumb (right)
- };
- CustomDrawTable cdt_vert_normal[] =
- {
- { 72, 0, 18, 18 }, //up arrow NORMAL
- { 72, 19, 18, 18 }, //down arrow NORMAL
- { 0, 112, 18, 1 }, //page up NORMAL
- { 0, 112, 18, 1 }, //page down NORMAL
- { -1, -1, -1, -1 }, //padding
- { 126, 0, 18, 9 }, //vert thumb (left)
- { 126, 9, 18, 1 }, //vert thumb (middle)
- { 126, 9, 18, 9 }, //vert thumb (right)
- };
- CustomDrawTable cdt_vert_hot[] =
- {
- { 90, 0, 18, 18 }, //up arrow ACTIVE
- { 90, 19, 18, 18 }, //down arrow ACTIVE
- { 4, 83, 18, 1 }, //page up ACTIVE
- { 4, 83, 18, 1 }, //page down ACTIVE
- { -1, -1, -1, -1 }, //padding
- { 126, 19, 18, 9 }, //vert thumb (left)
- { 126, 28, 18, 1 }, //vert thumb (middle)
- { 126, 28, 18, 9 }, //vert thumb (right)
- };
- CustomDrawTable cdt_vert_active[] =
- {
- { 108, 0, 18, 18 }, //up arrow ACTIVE
- { 108, 19, 18, 18 }, //down arrow ACTIVE
- { 4, 83, 18, 1 }, //page up ACTIVE
- { 4, 83, 18, 1 }, //page down ACTIVE
- { -1, -1, -1, -1 }, //padding
- { 126, 38, 18, 9 }, //vert thumb (left)
- { 126, 47, 18, 1 }, //vert thumb (middle)
- { 126, 47, 18, 9 }, //vert thumb (right)
- };
- LRESULT HandleCustomDraw(UINT ctrlid, NMCSBCUSTOMDRAW *nm)
- {
- RECT *rc;
- CustomDrawTable *cdt;
- UINT code = NM_CUSTOMDRAW;
- UNREFERENCED_PARAMETER(ctrlid);
- // inserted buttons do not use PREPAINT etc..
- if(nm->nBar == SB_INSBUT)
- {
- CoolSB_DrawProc(nm->hdc, nm->uItem, nm->uState, &nm->rect);
- return CDRF_SKIPDEFAULT;
- }
- if(!fCustomDraw) return CDRF_DODEFAULT;
- if(nm->dwDrawStage == CDDS_PREPAINT)
- {
- if(fCustomDraw)
- return CDRF_SKIPDEFAULT;
- else
- return CDRF_DODEFAULT;
- }
- if(nm->dwDrawStage == CDDS_POSTPAINT)
- {
-
- }
- //the sizing gripper in the bottom-right corner
- if(nm->nBar == SB_BOTH)
- {
- RECT *rc = &nm->rect;
-
- StretchBlt(nm->hdc, rc->left, rc->top, rc->right-rc->left, rc->bottom-rc->top,
- hdcSkin, 100, 100, 18, 18, SRCCOPY);
-
- return CDRF_SKIPDEFAULT;
- }
- else if(nm->nBar == SB_HORZ)
- {
- rc = &nm->rect;
- if(nm->uState == CDIS_HOT)
- cdt = &cdt_horz_hot[nm->uItem];
- else if(nm->uState == CDIS_SELECTED)
- cdt = &cdt_horz_active[nm->uItem];
- else
- cdt = &cdt_horz_normal[nm->uItem];
-
- if(nm->uItem == HTSCROLL_THUMB)
- {
- StretchBlt(nm->hdc, rc->left, rc->top, 9, rc->bottom-rc->top, hdcSkin, cdt->x, cdt->y, cdt->width, cdt->height, SRCCOPY);
- cdt++;
- StretchBlt(nm->hdc, rc->left+9, rc->top, (rc->right-rc->left)-18, rc->bottom-rc->top, hdcSkin, cdt->x, cdt->y, cdt->width, cdt->height, SRCCOPY);
- cdt++;
- StretchBlt(nm->hdc, rc->left+(rc->right-rc->left)-9, rc->top, 9, rc->bottom-rc->top, hdcSkin, cdt->x, cdt->y, cdt->width, cdt->height, SRCCOPY);
- return CDRF_SKIPDEFAULT;
- }
- }
- else if(nm->nBar == SB_VERT)
- {
- rc = &nm->rect;
- if(nm->uState == CDIS_HOT)
- cdt = &cdt_vert_hot[nm->uItem];
- else if(nm->uState == CDIS_SELECTED)
- cdt = &cdt_vert_active[nm->uItem];
- else
- cdt = &cdt_vert_normal[nm->uItem];
- if(nm->uItem == HTSCROLL_THUMB)
- {
- StretchBlt(nm->hdc, rc->left, rc->top, rc->right-rc->left, 9, hdcSkin, cdt->x, cdt->y, cdt->width, cdt->height, SRCCOPY);
- cdt++;
- StretchBlt(nm->hdc, rc->left, rc->top+9, rc->right-rc->left, (rc->bottom-rc->top)-18, hdcSkin, cdt->x, cdt->y, cdt->width, cdt->height, SRCCOPY);
- cdt++;
- StretchBlt(nm->hdc, rc->left, rc->top+(rc->bottom-rc->top)-9, rc->right-rc->left, 9,hdcSkin, cdt->x, cdt->y, cdt->width, cdt->height, SRCCOPY);
- return CDRF_SKIPDEFAULT;
- }
- }
- //INSERTED BUTTONS are handled here...
- else if(nm->nBar == SB_INSBUT)
- {
- CoolSB_DrawProc(nm->hdc, nm->uItem, nm->uState, &nm->rect);
- return CDRF_SKIPDEFAULT;
- }
- else
- {
- return CDRF_DODEFAULT;
- }
- //normal bitmaps, use same code for HORZ and VERT
- StretchBlt(nm->hdc, rc->left, rc->top, rc->right-rc->left, rc->bottom-rc->top,
- hdcSkin, cdt->x, cdt->y, cdt->width, cdt->height, SRCCOPY);
- return CDRF_SKIPDEFAULT;
- }
- void DrawTab(HDC hdcEMF, int x, int tabwidth, int tabheight, int xslope, BOOL active)
- {
- POINT pts[4];
- pts[0].x = x + 0;
- pts[0].y = 0;
- pts[1].x = x + xslope;
- pts[1].y = tabheight;
- pts[2].x = x + tabwidth - xslope;
- pts[2].y = tabheight;
- pts[3].x = x + tabwidth;
- pts[3].y = 0;
- if(active)
- SelectObject(hdcEMF, GetStockObject(WHITE_BRUSH));
- else
- SelectObject(hdcEMF, GetSysColorBrush(COLOR_3DFACE));
- Polygon(hdcEMF, pts, 4);
- oldpen = SelectObject(hdcEMF, hpen);
-
- MoveToEx(hdcEMF, pts[1].x+1, pts[1].y, 0);
- LineTo(hdcEMF, pts[2].x, pts[2].y);
-
- if(active)
- SelectObject(hdcEMF, whitepen);
- MoveToEx(hdcEMF, pts[3].x - 1, pts[3].y, 0);
- LineTo(hdcEMF, pts[0].x, pts[0].y);
-
- SelectObject(hdcEMF, oldpen);
- }
- //
- // Draw a series of "tabs" into a meta-file,
- // which we will use to custom-draw one of the inserted
- // scrollbar buttons
- //
- void InitMetaFile(void)
- {
- HDC hdcEMF;
- RECT rect;
- int totalwidth = 120;
- int width = 110, height = GetSystemMetrics(SM_CYHSCROLL);
- LOGFONT lf;
- POINT pts[4];
- int tabwidth = 40, tabxslope = 5;
- pts[0].x = 0;
- pts[0].y = 0;
- pts[1].x = tabxslope;
- pts[1].y = height - 1;
- pts[2].x = tabwidth - tabxslope;
- pts[2].y = height - 1;
- pts[3].x = tabwidth;
- pts[3].y = 0;
- hpen = CreatePen(PS_SOLID,0,GetSysColor(COLOR_3DSHADOW));
- whitepen = CreatePen(PS_INSIDEFRAME,0,RGB(0xff,0xff,0xff));
- SetRect(&rect, 0, 0, totalwidth, height+1);
-
- hdcEMF = CreateEnhMetaFile(NULL, NULL, NULL, NULL);
-
- ZeroMemory(&lf, sizeof(lf));
- lf.lfHeight = -MulDiv(7, GetDeviceCaps(hdcEMF, LOGPIXELSY), 72);
- lf.lfPitchAndFamily = DEFAULT_PITCH;
- lf.lfCharSet = ANSI_CHARSET;
- lstrcpy(lf.lfFaceName, "Arial");//Small fonts");
- hfont = CreateFontIndirect(&lf);
- pts[0].x = 0;
- pts[0].y = 0;
- pts[1].x = tabxslope;
- pts[1].y = height - 1;
- pts[2].x = tabwidth - tabxslope;
- pts[2].y = height - 1;
- pts[3].x = tabwidth;
- pts[3].y = 0;
-
- FillRect (hdcEMF, &rect, GetSysColorBrush(COLOR_3DFACE));//GetStockObject(WHITE_BRUSH);
- //fit as many lines in as space permits
- SelectObject(hdcEMF, GetSysColorBrush(COLOR_3DFACE));
- DrawTab(hdcEMF, width-tabwidth, tabwidth, height - 1, tabxslope, FALSE);
- DrawTab(hdcEMF, width-tabwidth-tabwidth+tabxslope, tabwidth, height - 1, tabxslope, FALSE);
- DrawTab(hdcEMF, 0, tabwidth, height - 1, tabxslope, TRUE);
-
- SelectObject(hdcEMF, hpen);
- MoveToEx(hdcEMF, 110, 0, 0);
- LineTo(hdcEMF, totalwidth, 0);
- SelectObject(hdcEMF, hfont);
- SetBkMode(hdcEMF, TRANSPARENT);
- TextOut(hdcEMF, 10,1, "Build", 5);
- TextOut(hdcEMF, 42,1, "Debug", 5);
- TextOut(hdcEMF, 78,1, "Result", 6);
- SelectObject(hdcEMF, oldpen);
- DeleteObject(hpen);
- DeleteObject(whitepen);
- hemf = CloseEnhMetaFile(hdcEMF);
- }
- //
- // function for drawing the custom-draw inserted buttons
- // Called from the WM_NOTIFY handler (HandleCustomDraw)
- //
- UINT CALLBACK CoolSB_DrawProc(HDC hdc, UINT uCmdId, UINT uButflags, RECT *rect)
- {
- RECT rc;
- POINT pt;
- HPEN hpen, hold;
- HBITMAP hbm, oldbm;
- HDC hdcmem;
- if(hemf == 0)
- InitMetaFile();
- SetRect(&rc, 0, 0, 120, rect->bottom-rect->top);
- hdcmem = CreateCompatibleDC(hdc);
- hbm = CreateCompatibleBitmap(hdc, rc.right, rc.bottom);
- oldbm = SelectObject(hdcmem, hbm);
- SetWindowOrgEx(hdc, -rect->left, -rect->top, &pt);
- PlayEnhMetaFile(hdcmem, hemf, &rc);
- BitBlt(hdc, 0, 0, rc.right, rc.bottom, hdcmem, 0, 0, SRCCOPY);
-
- SetRect(&rc, 120, 0, rect->right-rect->left, rect->bottom-rect->top);
- FillRect(hdc, &rc, GetSysColorBrush(COLOR_3DFACE));
-
- hpen = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DSHADOW));
- hold = SelectObject(hdc, hpen);
- MoveToEx(hdc, 120, 0, 0);
- LineTo(hdc, rect->right-rect->left, 0);
-
- SetWindowOrgEx(hdc, pt.x, pt.y, 0);
-
- SelectObject(hdc, hold);
- SelectObject(hdcmem, oldbm);
- DeleteObject(hbm);
- DeleteDC(hdcmem);
- DeleteObject(hpen);
-
- UNREFERENCED_PARAMETER(uButflags);
- UNREFERENCED_PARAMETER(uCmdId);
- return 0;
- }