// 作者：StarLee(coolstarlee@sohu.com)
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "lxDialog.h"
// 表示可改变大小的图标ID
#ifndef OBM_SIZE
#define OBM_SIZE 32766
#endif
ClxDialog::ClxDialog(UINT nID, CWnd* pParent /*=NULL*/)
: CDialog(nID, pParent)
, m_iClientWidth(0)
, m_iClientHeight(0)
, m_iMinWidth(0)
, m_iMinHeight(0)
, m_pControlArray(NULL)
, m_iControlNumber(0)
, m_bShowSizeIcon(TRUE)
{}
BEGIN_MESSAGE_MAP(ClxDialog, CDialog)
ON_WM_SIZE()
ON_WM_SIZING()
END_MESSAGE_MAP()
BOOL ClxDialog::OnInitDialog()
{
CDialog::OnInitDialog();
// 设置对话框为可变大小的
ModifyStyle(0, WS_SIZEBOX);
// 以对话框的初始大小作为对话框的宽度和高度的最小值
CRect rectDlg;
GetWindowRect(rectDlg);
m_iMinWidth = rectDlg.Width();
m_iMinHeight = rectDlg.Height();
// 得到对话框client区域的大小
CRect rectClient;
GetClientRect(rectClient);
m_iClientWidth = rectClient.Width();
m_iClientHeight = rectClient.Height();
// Load图标
m_bmpSizeIcon.LoadOEMBitmap(OBM_SIZE);
m_bmpSizeIcon.GetBitmap(&m_bitmap);
// 创建显示图标的静态控件并放在对话框右下角
m_wndSizeIcon.Create(NULL, WS_CHILD | WS_VISIBLE | SS_BITMAP, CRect(0, 0, m_bitmap.bmWidth, m_bitmap.bmHeight), this, 0);
m_wndSizeIcon.SetBitmap(m_bmpSizeIcon);
m_wndSizeIcon.MoveWindow(m_iClientWidth - m_bitmap.bmWidth, m_iClientHeight - m_bitmap.bmHeight, m_bitmap.bmWidth, m_bitmap.bmHeight);
// 显示图标
m_wndSizeIcon.ShowWindow(m_bShowSizeIcon);
return TRUE;
}
void ClxDialog::OnSize(UINT nType, int cx, int cy)
{
CDialog::OnSize(nType, cx, cy);
// 对话框宽度和高度的增量
int iIncrementX = cx - m_iClientWidth;
int iIncrementY = cy - m_iClientHeight;
// 最小化时增量为0
if (nType == SIZE_MINIMIZED)
{
iIncrementX = iIncrementY = 0;
}
for (int i = 0; i < m_iControlNumber; i )
{
CWnd *pWndCtrl = NULL;
int iId = m_pControlArray[i].iId;
int iFlag = m_pControlArray[i].iFlag;
int iPercent = m_pControlArray[i].iPercent;
// 无效值
if ((iPercent < 0) || (iPercent > 100))
continue;
// 得到控件指针
pWndCtrl = GetDlgItem(iId);
if ((NULL != pWndCtrl) && IsWindow(pWndCtrl->GetSafeHwnd()))
{
CRect rectCtrl;
pWndCtrl->GetWindowRect(rectCtrl);
ScreenToClient(rectCtrl);
int iLeft = rectCtrl.left;
int iTop = rectCtrl.top;
int iWidth = rectCtrl.Width();
int iHeight = rectCtrl.Height();
switch (iFlag)
{
case MOVEX: // X方向移动
iLeft = (iIncrementX * iPercent / 100);
break;
case MOVEY: // Y方向移动
iTop = (iIncrementY * iPercent / 100);
break;
case MOVEXY: // X方向和Y方向同时移动
iLeft = (iIncrementX * iPercent / 100);
iTop = (iIncrementY * iPercent / 100);
break;
case ELASTICX: // X方向改变大小
iWidth = (iIncrementX * iPercent / 100);
break;
case ELASTICY: // Y方向改变大小
iHeight = (iIncrementY * iPercent / 100);
break;
case ELASTICXY: // X方向和Y方向同时改变大小
iWidth = (iIncrementX * iPercent / 100);
iHeight = (iIncrementY * iPercent / 100);
break;
default:
;
}
// 把控件移动到新位置
pWndCtrl->MoveWindow(iLeft, iTop, iWidth, iHeight);
}
}
// 把图标移动到对话框右下角
if (IsWindow(m_wndSizeIcon.GetSafeHwnd()))
m_wndSizeIcon.MoveWindow(cx - m_bitmap.bmWidth, cy - m_bitmap.bmHeight, m_bitmap.bmWidth, m_bitmap.bmHeight);
// 记录对话框client区域的大小
if (nType != SIZE_MINIMIZED)
{
m_iClientWidth = cx;
m_iClientHeight = cy;
}
}
void ClxDialog::OnSizing(UINT nSide, LPRECT lpRect)
{
CDialog::OnSizing(nSide, lpRect);
// 对话框不能小于初始大小
int iWidth = lpRect->right - lpRect->left;
int iHeight = lpRect->bottom - lpRect->top;
if (iWidth <= m_iMinWidth)
lpRect->right = lpRect->left m_iMinWidth;
if(iHeight <= m_iMinHeight)
lpRect->bottom = lpRect->top m_iMinHeight;
}
BOOL ClxDialog::SetControlProperty(PDLGCTLINFO lp, int nElements)
{
// 设置控件数组信息
if (NULL == lp)
return FALSE;
if (nElements <= 0)
return FALSE;
m_pControlArray = lp;
m_iControlNumber = nElements;
return TRUE;
}
void ClxDialog::ShowSizeIcon(BOOL bShow /*=NULL*/)
{
m_bShowSizeIcon = bShow;
}
