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EasySize是VC中用于排版控件的非常实用的东东.对于初学者来说, 使用起来非常难以理解, 更别提弄出理想的效果.
/*===================================================*\
| |
| EASY-SIZE Macros |
| |
| Copyright (c) 2001 - Marc Richarme |
| devix@devix.cjb.net |
| http://devix.cjb.net |
| |
| License: |
| |
| You may use this code in any commersial or non- |
| commersial application, and you may redistribute |
| this file (and even modify it if you wish) as |
| long as you keep this notice untouched in any |
| version you redistribute. |
| |
| Usage: |
| |
| - Insert 'DECLARE_EASYSIZE' somewhere in your |
| class declaration |
| - Insert an easysize map in the beginning of your |
| class implementation (see documentation) and |
| outside of any function. |
| - Insert 'INIT_EASYSIZE;' in your |
| OnInitDialog handler. |
| - Insert 'UPDATE_EASYSIZE' in your OnSize handler |
| - Optional: Insert 'EASYSIZE_MINSIZE(mx,my);' in |
| your OnSizing handler if you want to specify |
| a minimum size for your dialog |
| |
| Check http://devix.cjb.net for the |
| docs and new versions |
| |
\*===================================================*/
#ifndef __EASYSIZE_H_
#define __EASYSIZE_H_
#define ES_BORDER 0xffffffff
#define ES_KEEPSIZE 0xfffffffe
#define ES_HCENTER 0x00000001
#define ES_VCENTER 0x00000002
#define DECLARE_EASYSIZE \
void __ES__RepositionControls(BOOL bInit);\
void __ES__CalcBottomRight(CWnd *pThis, BOOL bBottom, int &bottomright, int &topleft, UINT id, UINT br, int es_br, CRect &rect, int clientbottomright);
#define INIT_EASYSIZE __ES__RepositionControls(TRUE); __ES__RepositionControls(FALSE)
#define UPDATE_EASYSIZE if(GetWindow(GW_CHILD)!=NULL) __ES__RepositionControls(FALSE)
#define EASYSIZE_MINSIZE(mx,my,s,r) if(r->right-r->left < mx) { if((s == WMSZ_BOTTOMLEFT)||(s == WMSZ_LEFT)||(s == WMSZ_TOPLEFT)) r->left = r->right-mx; else r->right = r->left mx; } if(r->bottom-r->top < my) { if((s == WMSZ_TOP)||(s == WMSZ_TOPLEFT)||(s == WMSZ_TOPRIGHT)) r->top = r->bottom-my; else r->bottom = r->top my; }
#define BEGIN_EASYSIZE_MAP(class) \
void class::__ES__CalcBottomRight(CWnd *pThis, BOOL bBottom, int &bottomright, int &topleft, UINT id, UINT br, int es_br, CRect &rect, int clientbottomright) {\
if(br==ES_BORDER) bottomright = clientbottomright-es_br;\
else if(br==ES_KEEPSIZE) bottomright = topleft es_br;\
else { CRect rect2;\
pThis->GetDlgItem(br)->GetWindowRect(rect2); pThis->ScreenToClient(rect2);\
bottomright = (bBottom?rect2.top:rect2.left) - es_br;}}\
void class::__ES__RepositionControls(BOOL bInit) { CRect rect,rect2,client; GetClientRect(client);
#define END_EASYSIZE_MAP Invalidate(); UpdateWindow(); }
#define EASYSIZE(id,l,t,r,b,o) \
static int id##_es_l, id##_es_t, id##_es_r, id##_es_b;\
if(bInit) {\
GetDlgItem(id)->GetWindowRect(rect); ScreenToClient(rect);\
if(o & ES_HCENTER) id##_es_l = rect.Width()/2; else {\
if(l==ES_BORDER) id##_es_l = rect.left; else if(l==ES_KEEPSIZE) id##_es_l = rect.Width(); else {\
GetDlgItem(l)->GetWindowRect(rect2); ScreenToClient(rect2);\
id##_es_l = rect.left-rect2.right;}}\
if(o & ES_VCENTER) id##_es_t = rect.Height()/2; else {\
if(t==ES_BORDER) id##_es_t = rect.top; else if(t==ES_KEEPSIZE) id##_es_t = rect.Height(); else {\
GetDlgItem(t)->GetWindowRect(rect2); ScreenToClient(rect2);\
id##_es_t = rect.top-rect2.bottom;}}\
if(o & ES_HCENTER) id##_es_r = rect.Width(); else { if(r==ES_BORDER) id##_es_r = client.right-rect.right; else if(r==ES_KEEPSIZE) id##_es_r = rect.Width(); else {\
GetDlgItem(r)->GetWindowRect(rect2); ScreenToClient(rect2);\
id##_es_r = rect2.left-rect.right;}}\
if(o & ES_VCENTER) id##_es_b = rect.Height(); else { if(b==ES_BORDER) id##_es_b = client.bottom-rect.bottom; else if(b==ES_KEEPSIZE) id##_es_b = rect.Height(); else {\
GetDlgItem(b)->GetWindowRect(rect2); ScreenToClient(rect2);\
id##_es_b = rect2.top-rect.bottom;}}\
} else {\
int left,top,right,bottom; BOOL bR = FALSE,bB = FALSE;\
if(o & ES_HCENTER) { int _a,_b;\
if(l==ES_BORDER) _a = client.left; else { GetDlgItem(l)->GetWindowRect(rect2); ScreenToClient(rect2); _a = rect2.right; }\
if(r==ES_BORDER) _b = client.right; else { GetDlgItem(r)->GetWindowRect(rect2); ScreenToClient(rect2); _b = rect2.left; }\
left = _a ((_b-_a)/2-id##_es_l); right = left id##_es_r;} else {\
if(l==ES_BORDER) left = id##_es_l;\
else if(l==ES_KEEPSIZE) { __ES__CalcBottomRight(this,FALSE,right,left,id,r,id##_es_r,rect,client.right); left = right-id##_es_l;\
} else { GetDlgItem(l)->GetWindowRect(rect2); ScreenToClient(rect2); left = rect2.right id##_es_l; }\
if(l != ES_KEEPSIZE) __ES__CalcBottomRight(this,FALSE,right,left,id,r,id##_es_r,rect,client.right);}\
if(o & ES_VCENTER) { int _a,_b;\
if(t==ES_BORDER) _a = client.top; else { GetDlgItem(t)->GetWindowRect(rect2); ScreenToClient(rect2); _a = rect2.bottom; }\
if(b==ES_BORDER) _b = client.bottom; else { GetDlgItem(b)->GetWindowRect(rect2); ScreenToClient(rect2); _b = rect2.top; }\
top = _a ((_b-_a)/2-id##_es_t); bottom = top id##_es_b;} else {\
if(t==ES_BORDER) top = id##_es_t;\
else if(t==ES_KEEPSIZE) { __ES__CalcBottomRight(this,TRUE,bottom,top,id,b,id##_es_b,rect,client.bottom); top = bottom-id##_es_t;\
} else { GetDlgItem(t)->GetWindowRect(rect2); ScreenToClient(rect2); top = rect2.bottom id##_es_t; }\
if(t != ES_KEEPSIZE) __ES__CalcBottomRight(this,TRUE,bottom,top,id,b,id##_es_b,rect,client.bottom);}\
GetDlgItem(id)->MoveWindow(left,top,right-left,bottom-top,FALSE);\
}
#endif //__EASYSIZE_H_