大家好,又见面了,我是全栈君,今天给大家准备了Idea注册码。
转载请注明原始出处。谢谢~~:http://blog.csdn.net/zhuhongshu/article/details/41208207
假设要使用透明异形窗口功能,首先要改进duilib库让他本身支持(能够下载duilib扩展群群主改进的库。或者下载我的库),然后要开启窗口的bktrans属性。
这时仅仅要使用透明的背景素材就能做出透明异形窗口。可是透明窗口并不好驾驭,会带来非常多麻烦。当中之中的一个就是原Edit控件无法使用。这时改用Richedit控件是不错的选择。
RichEdit有非常多优势,一是支持透明窗口、二十属性更丰富功能很多其它,他本身就能够是透明背景,同一时候还是容器,能够容纳其它控件。
只是我在使用他的过程中发现几点不足,所以做了简单的改进,记录到博客里。
改进例如以下:
1.richedit 控件的容器布局基类从Container改为HorizontalLayout。能够支持相对布局。让richedit能够内嵌更复杂灵活的布局
2.richedit 添加textpadding属性。方便控制布局。控制文字和光标的输出范围,而不须要用原来的inset属性来控制光标的位置
3.richedit添加四种状态的图片。normal、hot、focus、disable。来完毕一些细节效果的显示
改进1:
richedit本身是个容器。这点非常不错,可是他继承自CContainer容器,本身没有布局功能,这点非常不好。我这里做改进时没有让他继承CHorizontalLayout类,由于richedit已经重写了SetPos函数,直接用CHorizontalLayout的SetPos函数的逻辑代码替换掉richedit的SetPos函数的部分代码即可了。记住不要所有替换,由于richedit的SetPos函数的前段的代码是处理richedit光标的代码。改动后的完整代码例如以下:
void CRichEditUI::SetPos(RECT rc) { CControlUI::SetPos(rc); rc = m_rcItem; rc.left += m_rcInset.left; rc.top += m_rcInset.top; rc.right -= m_rcInset.right; rc.bottom -= m_rcInset.bottom; bool bVScrollBarVisiable = false; if( m_pVerticalScrollBar && m_pVerticalScrollBar->IsVisible() ) { bVScrollBarVisiable = true; rc.right -= m_pVerticalScrollBar->GetFixedWidth(); } if( m_pHorizontalScrollBar && m_pHorizontalScrollBar->IsVisible() ) { rc.bottom -= m_pHorizontalScrollBar->GetFixedHeight(); } if( m_pTwh ) { RECT rcRich = rc; rcRich.left += m_rcTextPadding.left; rcRich.right -= m_rcTextPadding.right; rcRich.top += m_rcTextPadding.top; rcRich.bottom -= m_rcTextPadding.bottom; m_pTwh->SetClientRect(&rcRich); if( bVScrollBarVisiable && (!m_pVerticalScrollBar->IsVisible() || m_bVScrollBarFixing) ) { LONG lWidth = rcRich.right - rcRich.left + m_pVerticalScrollBar->GetFixedWidth(); LONG lHeight = 0; SIZEL szExtent = { -1, -1 }; m_pTwh->GetTextServices()->TxGetNaturalSize( DVASPECT_CONTENT, GetManager()->GetPaintDC(), NULL, NULL, TXTNS_FITTOCONTENT, &szExtent, &lWidth, &lHeight); if( lHeight > rcRich.bottom - rcRich.top ) { m_pVerticalScrollBar->SetVisible(true); m_pVerticalScrollBar->SetScrollPos(0); m_bVScrollBarFixing = true; } else { if( m_bVScrollBarFixing ) { m_pVerticalScrollBar->SetVisible(false); m_bVScrollBarFixing = false; } } } } if( m_pVerticalScrollBar != NULL && m_pVerticalScrollBar->IsVisible() ) { RECT rcScrollBarPos = { rc.right, rc.top, rc.right + m_pVerticalScrollBar->GetFixedWidth(), rc.bottom}; m_pVerticalScrollBar->SetPos(rcScrollBarPos); } if( m_pHorizontalScrollBar != NULL && m_pHorizontalScrollBar->IsVisible() ) { RECT rcScrollBarPos = { rc.left, rc.bottom, rc.right, rc.bottom + m_pHorizontalScrollBar->GetFixedHeight()}; m_pHorizontalScrollBar->SetPos(rcScrollBarPos); } SIZE szAvailable = { rc.right - rc.left, rc.bottom - rc.top }; if( m_pHorizontalScrollBar && m_pHorizontalScrollBar->IsVisible() ) szAvailable.cx += m_pHorizontalScrollBar->GetScrollRange(); int nAdjustables = 0; int cxFixed = 0; int nEstimateNum = 0; for( int it1 = 0; it1 < m_items.GetSize(); it1++ ) { CControlUI* pControl = static_cast<CControlUI*>(m_items[it1]); if( !pControl->IsVisible() ) continue; if( pControl->IsFloat() ) continue; SIZE sz = pControl->EstimateSize(szAvailable); if( sz.cx == 0 ) { nAdjustables++; } else { if( sz.cx < pControl->GetMinWidth() ) sz.cx = pControl->GetMinWidth(); if( sz.cx > pControl->GetMaxWidth() ) sz.cx = pControl->GetMaxWidth(); } cxFixed += sz.cx + pControl->GetPadding().left + pControl->GetPadding().right; nEstimateNum++; } cxFixed += (nEstimateNum - 1) * m_iChildPadding; int cxExpand = 0; int cxNeeded = 0; if( nAdjustables > 0 ) cxExpand = MAX(0, (szAvailable.cx - cxFixed) / nAdjustables); // Position the elements SIZE szRemaining = szAvailable; int iPosX = rc.left; if( m_pHorizontalScrollBar && m_pHorizontalScrollBar->IsVisible() ) { iPosX -= m_pHorizontalScrollBar->GetScrollPos(); } int iAdjustable = 0; int cxFixedRemaining = cxFixed; for( int it2 = 0; it2 < m_items.GetSize(); it2++ ) { CControlUI* pControl = static_cast<CControlUI*>(m_items[it2]); if( !pControl->IsVisible() ) continue; if( pControl->IsFloat() ) { SetFloatPos(it2); continue; } RECT rcPadding = pControl->GetPadding(); szRemaining.cx -= rcPadding.left; SIZE sz = pControl->EstimateSize(szRemaining); if( sz.cx == 0 ) { iAdjustable++; sz.cx = cxExpand; if( sz.cx < pControl->GetMinWidth() ) sz.cx = pControl->GetMinWidth(); if( sz.cx > pControl->GetMaxWidth() ) sz.cx = pControl->GetMaxWidth(); } else { if( sz.cx < pControl->GetMinWidth() ) sz.cx = pControl->GetMinWidth(); if( sz.cx > pControl->GetMaxWidth() ) sz.cx = pControl->GetMaxWidth(); } sz.cy = pControl->GetFixedHeight(); if( sz.cy == 0 ) sz.cy = rc.bottom - rc.top - rcPadding.top - rcPadding.bottom; if( sz.cy < 0 ) sz.cy = 0; if( sz.cy < pControl->GetMinHeight() ) sz.cy = pControl->GetMinHeight(); if( sz.cy > pControl->GetMaxHeight() ) sz.cy = pControl->GetMaxHeight(); RECT rcCtrl = { iPosX + rcPadding.left, rc.top + rcPadding.top, iPosX + sz.cx + rcPadding.left , rc.top + rcPadding.top + sz.cy}; pControl->SetPos(rcCtrl); iPosX += sz.cx + m_iChildPadding + rcPadding.left + rcPadding.right; cxNeeded += sz.cx + rcPadding.left + rcPadding.right; szRemaining.cx -= sz.cx + m_iChildPadding + rcPadding.right; } cxNeeded += (nEstimateNum - 1) * m_iChildPadding; //reddrain if( m_pHorizontalScrollBar != NULL ) { if( cxNeeded > rc.right - rc.left ) { if( m_pHorizontalScrollBar->IsVisible() ) { m_pHorizontalScrollBar->SetScrollRange(cxNeeded - (rc.right - rc.left)); } else { m_pHorizontalScrollBar->SetVisible(true); m_pHorizontalScrollBar->SetScrollRange(cxNeeded - (rc.right - rc.left)); m_pHorizontalScrollBar->SetScrollPos(0); rc.bottom -= m_pHorizontalScrollBar->GetFixedHeight(); } } else { if( m_pHorizontalScrollBar->IsVisible() ) { m_pHorizontalScrollBar->SetVisible(false); m_pHorizontalScrollBar->SetScrollRange(0); m_pHorizontalScrollBar->SetScrollPos(0); rc.bottom += m_pHorizontalScrollBar->GetFixedHeight(); } } } //redrain }
这样子改进后,就能够非常easy的做出仿酷狗的搜索栏的效果,也就是richedit内嵌一个button。而不须要用到绝对布局来控制button,也不须要为button的位置自适应文字操心。
相应的布局代码例如以下:
<RichEdit name="Edt_Title_Search" rich="false" multiline="false" font="0" text="张学友 童真年代" height="27" textpadding="9,3,35,5" textcolor="#646464" bkcolor="#00FFFFFF" bkimage="UI\title\edit.png" > <Control height="1"/> <Button name="Btn_Title_Search" width="33" height="27" normalimage="UI\title\search_normal.png" hotimage="UI\title\search_hover.png" pushedimage="UI\title\search_down.png" /> </RichEdit>
这个改进我已经用到仿酷狗里面了,大家能够下载我的源代码去看。布局中设置了一个高度为1的Control,起到了占位作用。让button能够自适应位置。
改进2:
在duilib的CRichEditUI控件中,richedit的功能,实际上是调用了系统的richedit的接口来完毕的。在CRichEditUI中把这个richedit当作了容器中的一个控件,所以这个richedit的位置,是在SetPos函数中去指定的。在原本CRichEditUI中。要想控制文本的输入区域和光标的位置,须要用到inset属性来控制,这显然和Label以及Edit控件的用法不一样。Label和Edit都是用textpadding属性来控制的,所以改动了CRichEdit的代码。让他改用textpadding属性来控制。
首先要在UIRichEdit.h文件里添加两个成员函数和一个成员变量。而且在构造函数里初始化,具体的相信也不须要多说:
RECT GetTextPadding() const; void SetTextPadding(RECT rc);
RECT m_rcTextPadding;
然后改动SetAttribute函数,添加例如以下代码:
else if( _tcscmp(pstrName, _T("textpadding")) == 0 ) { RECT rcTextPadding = { 0 }; LPTSTR pstr = NULL; rcTextPadding.left = _tcstol(pstrValue, &pstr, 10); ASSERT(pstr); rcTextPadding.top = _tcstol(pstr + 1, &pstr, 10); ASSERT(pstr); rcTextPadding.right = _tcstol(pstr + 1, &pstr, 10); ASSERT(pstr); rcTextPadding.bottom = _tcstol(pstr + 1, &pstr, 10); ASSERT(pstr); SetTextPadding(rcTextPadding); }
最后改动SetPos函数。在函数里依据m_rcTextPadding的值去布局richedit组件的位置就能够了。SetPos函数已经在前面给出了。
改进3:
在Edit控件中,支持四种状态的图片:normal、hot、focus、disable。这样能够做到一些细微的效果,比方鼠标移动到edit上面后让控件边框变亮,这点能够看QQ登录器的帐号和password输入框。可是richedit控件却没有,所以我给他添加了这几个状态图。
1、 首先还是成员函数和成员变量:
LPCTSTR GetNormalImage(); void SetNormalImage(LPCTSTR pStrImage); LPCTSTR GetHotImage(); void SetHotImage(LPCTSTR pStrImage); LPCTSTR GetFocusedImage(); void SetFocusedImage(LPCTSTR pStrImage); LPCTSTR GetDisabledImage(); void SetDisabledImage(LPCTSTR pStrImage); void PaintStatusImage(HDC hDC);
CDuiString m_sNormalImage; CDuiString m_sHotImage; CDuiString m_sFocusedImage; CDuiString m_sDisabledImage;
然后相应的函数定义为:
LPCTSTR CRichEditUI::GetNormalImage() { return m_sNormalImage; } void CRichEditUI::SetNormalImage(LPCTSTR pStrImage) { m_sNormalImage = pStrImage; Invalidate(); } LPCTSTR CRichEditUI::GetHotImage() { return m_sHotImage; } void CRichEditUI::SetHotImage(LPCTSTR pStrImage) { m_sHotImage = pStrImage; Invalidate(); } LPCTSTR CRichEditUI::GetFocusedImage() { return m_sFocusedImage; } void CRichEditUI::SetFocusedImage(LPCTSTR pStrImage) { m_sFocusedImage = pStrImage; Invalidate(); } LPCTSTR CRichEditUI::GetDisabledImage() { return m_sDisabledImage; } void CRichEditUI::SetDisabledImage(LPCTSTR pStrImage) { m_sDisabledImage = pStrImage; Invalidate(); } RECT CRichEditUI::GetTextPadding() const { return m_rcTextPadding; } void CRichEditUI::SetTextPadding(RECT rc) { m_rcTextPadding = rc; Invalidate(); } void CRichEditUI::PaintStatusImage(HDC hDC) { if( IsFocused() ) m_uButtonState |= UISTATE_FOCUSED; else m_uButtonState &= ~ UISTATE_FOCUSED; if( !IsEnabled() ) m_uButtonState |= UISTATE_DISABLED; else m_uButtonState &= ~ UISTATE_DISABLED; if( (m_uButtonState & UISTATE_DISABLED) != 0 ) { if( !m_sDisabledImage.IsEmpty() ) { if( !DrawImage(hDC, (LPCTSTR)m_sDisabledImage) ) m_sDisabledImage.Empty(); else return; } } else if( (m_uButtonState & UISTATE_FOCUSED) != 0 ) { if( !m_sFocusedImage.IsEmpty() ) { if( !DrawImage(hDC, (LPCTSTR)m_sFocusedImage) ) m_sFocusedImage.Empty(); else return; } } else if( (m_uButtonState & UISTATE_HOT ) != 0 ) { if( !m_sHotImage.IsEmpty() ) { if( !DrawImage(hDC, (LPCTSTR)m_sHotImage) ) m_sHotImage.Empty(); else return; } } if( !m_sNormalImage.IsEmpty() ) { if( !DrawImage(hDC, (LPCTSTR)m_sNormalImage) ) m_sNormalImage.Empty(); else return; } }
2、相同也须要在SetAttribute中添加例如以下代码:
else if( _tcscmp(pstrName, _T("normalimage")) == 0 ) SetNormalImage(pstrValue); else if( _tcscmp(pstrName, _T("hotimage")) == 0 ) SetHotImage(pstrValue); else if( _tcscmp(pstrName, _T("focusedimage")) == 0 ) SetFocusedImage(pstrValue); else if( _tcscmp(pstrName, _T("disabledimage")) == 0 ) SetDisabledImage(pstrValue);
3、另外还须要添加一个成员变量来记录控件是否处在hot状态下
UINT m_uButtonState;
然后在DoEvent函数中增加例如以下代码来改变成员变量
else if( event.Type == UIEVENT_MOUSEMOVE ) <span style="white-space:pre"> </span>{ <span style="white-space:pre"> </span>if( IsEnabled() ) { <span style="white-space:pre"> </span>m_uButtonState |= UISTATE_HOT; <span style="white-space:pre"> </span>Invalidate(); <span style="white-space:pre"> </span>} <span style="white-space:pre"> </span>return; <span style="white-space:pre"> </span>} <span style="white-space:pre"> </span>else if( event.Type == UIEVENT_BUTTONUP ) <span style="white-space:pre"> </span>{ <span style="white-space:pre"> </span>return; } <span style="white-space:pre"> </span>else if( event.Type == UIEVENT_MOUSEENTER ) <span style="white-space:pre"> </span>{ <span style="white-space:pre"> </span>if( IsEnabled() ) { <span style="white-space:pre"> </span>m_uButtonState |= UISTATE_HOT; <span style="white-space:pre"> </span>Invalidate(); <span style="white-space:pre"> </span>} <span style="white-space:pre"> </span>return; <span style="white-space:pre"> </span>} <span style="white-space:pre"> </span>else if( event.Type == UIEVENT_MOUSELEAVE ) <span style="white-space:pre"> </span>{ <span style="white-space:pre"> </span>if( IsEnabled() ) { <span style="white-space:pre"> </span>m_uButtonState &= ~UISTATE_HOT; <span style="white-space:pre"> </span>Invalidate(); <span style="white-space:pre"> </span>} <span style="white-space:pre"> </span>return; <span style="white-space:pre"> </span>}
总结:
上面的全部代码的改进。我都已经在我自己的库里面改好了,我自己的库下载地址为:点击打开链接。
假设有错误或者不妥,请联系我。
Redrain 2014.11.17
QQ:491646717
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