297 lines
12 KiB
MQL5
297 lines
12 KiB
MQL5
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//+------------------------------------------------------------------+
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//| Box.mqh |
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//| Enrico Lambino |
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//| www.mql5.com/en/users/iceron|
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//+------------------------------------------------------------------+
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#property copyright "Enrico Lambino"
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#property link "https://www.mql5.com/en/articles/1867"
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#include <Controls\WndClient.mqh>
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#define CLASS_LAYOUT 999
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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enum LAYOUT_STYLE
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{
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LAYOUT_STYLE_VERTICAL,
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LAYOUT_STYLE_HORIZONTAL
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};
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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enum VERTICAL_ALIGN
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{
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VERTICAL_ALIGN_CENTER,
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VERTICAL_ALIGN_CENTER_NOSIDES,
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VERTICAL_ALIGN_TOP,
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VERTICAL_ALIGN_BOTTOM
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};
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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enum HORIZONTAL_ALIGN
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{
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HORIZONTAL_ALIGN_CENTER,
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HORIZONTAL_ALIGN_CENTER_NOSIDES,
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HORIZONTAL_ALIGN_LEFT,
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HORIZONTAL_ALIGN_RIGHT
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};
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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class CBox : public CWndClient
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{
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protected:
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LAYOUT_STYLE m_layout_style;
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VERTICAL_ALIGN m_vertical_align;
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HORIZONTAL_ALIGN m_horizontal_align;
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CSize m_min_size;
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int m_controls_total;
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int m_padding_top;
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int m_padding_bottom;
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int m_padding_left;
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int m_padding_right;
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int m_total_x;
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int m_total_y;
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public:
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CBox();
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~CBox();
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virtual int Type() const {return CLASS_LAYOUT;}
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virtual bool Create(const long chart,const string name,const int subwin,
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const int x1,const int y1,const int x2,const int y2);
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virtual bool Pack();
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void LayoutStyle(LAYOUT_STYLE style){m_layout_style=style;}
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LAYOUT_STYLE LayoutStyle() const {return(m_layout_style);}
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void HorizontalAlign(const HORIZONTAL_ALIGN align){m_horizontal_align=align;}
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HORIZONTAL_ALIGN HorizontalAlign() const {return(m_horizontal_align);}
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void VerticalAlign(const VERTICAL_ALIGN align){m_vertical_align=align;}
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VERTICAL_ALIGN VerticalAlign() const {return(m_vertical_align);}
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void Padding(const int top,const int bottom,const int left,const int right);
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void Padding(const int padding);
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void PaddingTop(const int padding) {m_padding_top=padding;}
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int PaddingTop() const {return(m_padding_top);}
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void PaddingRight(const int padding) {m_padding_right=padding;}
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int PaddingRight() const {return(m_padding_right);}
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void PaddingBottom(const int padding) {m_padding_bottom=padding;}
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int PaddingBottom() const {return(m_padding_bottom);}
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void PaddingLeft(const int padding) {m_padding_left=padding;}
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int PaddingLeft() const {return(m_padding_left);}
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protected:
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virtual void CheckControlSize(CWnd *control);
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virtual void GetTotalControlsSize(void);
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virtual bool GetSpace(int &x_space,int &y_space);
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virtual bool Render(void);
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virtual void Shift(CWnd *control,int &x,int &y,const int x_space,const int y_space);
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};
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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CBox::CBox() : m_layout_style(LAYOUT_STYLE_HORIZONTAL),
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m_vertical_align(VERTICAL_ALIGN_CENTER),
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m_horizontal_align(HORIZONTAL_ALIGN_CENTER),
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m_controls_total(0),
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m_padding_top(2),
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m_padding_bottom(2),
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m_padding_left(2),
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m_padding_right(2),
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m_total_x(0),
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m_total_y(0)
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{
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m_min_size.cx = 0;
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m_min_size.cy = 0;
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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CBox::~CBox()
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{
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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bool CBox::Create(const long chart,const string name,const int subwin,
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const int x1,const int y1,const int x2,const int y2)
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{
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if(!CWndContainer::Create(chart,name,subwin,x1,y1,x2,y2))
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return(false);
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if(!CreateBack())
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return(false);
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if(!ColorBackground(CONTROLS_DIALOG_COLOR_CLIENT_BG))
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return(false);
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if(!ColorBorder(clrNONE))
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return(false);
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return(true);
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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bool CBox::Pack(void)
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{
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GetTotalControlsSize();
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return(Render());
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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void CBox::CheckControlSize(CWnd *control)
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{
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bool adjust=false;
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CSize size=Size();
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CSize control_size=control.Size();
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if(control_size.cx>size.cx-(m_padding_left+m_padding_right))
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{
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control_size.cx=size.cx-(m_padding_left+m_padding_right);
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adjust=true;
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}
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if(control_size.cy>size.cy-(m_padding_top+m_padding_bottom))
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{
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control_size.cy=size.cy-(m_padding_top+m_padding_bottom);
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adjust=true;
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}
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if(adjust)
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control.Size(control_size.cx,control_size.cy);
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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void CBox::GetTotalControlsSize(void)
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{
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m_total_x = 0;
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m_total_y = 0;
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m_controls_total = 0;
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m_min_size.cx = 0;
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m_min_size.cy = 0;
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int total=ControlsTotal();
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for(int i=0;i<total;i++)
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{
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CWnd *control=Control(i);
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if(control==NULL)
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continue;
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if(control==GetPointer(m_background))
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continue;
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CheckControlSize(GetPointer(control));
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CSize control_size=control.Size();
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if(m_min_size.cx<control_size.cx)
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m_min_size.cx=control_size.cx;
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if(m_min_size.cy<control_size.cy)
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m_min_size.cy=control_size.cy;
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m_total_x += control_size.cx;
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m_total_y += control_size.cy;
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m_controls_total++;
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}
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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bool CBox::GetSpace(int &x_space,int &y_space)
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{
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if(m_controls_total==0)
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return(true);
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if(m_controls_total==1)
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{
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if(m_horizontal_align==HORIZONTAL_ALIGN_CENTER_NOSIDES)
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m_horizontal_align= HORIZONTAL_ALIGN_CENTER;
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if(m_vertical_align==VERTICAL_ALIGN_CENTER_NOSIDES)
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m_vertical_align= VERTICAL_ALIGN_CENTER;
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}
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CSize size=Size();
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int x_space_total=0;
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int y_space_total=0;
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if(m_layout_style==LAYOUT_STYLE_HORIZONTAL)
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{
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x_space_total=size.cx-(m_total_x+m_padding_left+m_padding_right);
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y_space_total=size.cy-(m_min_size.cy+m_padding_top+m_padding_bottom);
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if(m_horizontal_align==HORIZONTAL_ALIGN_CENTER_NOSIDES)
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x_space=x_space_total/(m_controls_total-1);
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else if(m_horizontal_align==HORIZONTAL_ALIGN_CENTER)
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x_space=x_space_total/(m_controls_total+1);
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else
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x_space=x_space_total/m_controls_total;
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if(m_vertical_align==VERTICAL_ALIGN_CENTER || m_vertical_align==VERTICAL_ALIGN_CENTER_NOSIDES)
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y_space=y_space_total/2;
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else y_space=y_space_total;
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}
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else if(m_layout_style==LAYOUT_STYLE_VERTICAL)
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{
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x_space_total=size.cx-(m_min_size.cx+m_padding_left+m_padding_right);
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y_space_total=size.cy -(m_total_y+m_padding_top+m_padding_bottom);
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if(m_horizontal_align==HORIZONTAL_ALIGN_CENTER || m_horizontal_align==HORIZONTAL_ALIGN_CENTER_NOSIDES)
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x_space=x_space_total/2;
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else x_space=x_space_total;
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if(m_vertical_align==VERTICAL_ALIGN_CENTER_NOSIDES)
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y_space=y_space_total/(m_controls_total-1);
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else if(m_vertical_align==VERTICAL_ALIGN_CENTER)
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y_space=y_space_total/(m_controls_total+1);
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else y_space=y_space_total/m_controls_total;
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}
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else return(false);
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return(true);
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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void CBox::Shift(CWnd *control,int &x,int &y,const int x_space,const int y_space)
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{
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if(m_layout_style==LAYOUT_STYLE_HORIZONTAL)
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x+=x_space+control.Width();
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else if(m_layout_style==LAYOUT_STYLE_VERTICAL)
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y+=y_space+control.Height();
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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bool CBox::Render(void)
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{
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int x_space=0,y_space=0;
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if(!GetSpace(x_space,y_space))
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return(false);
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int x=Left()+m_padding_left+
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((m_horizontal_align==HORIZONTAL_ALIGN_LEFT||m_horizontal_align==HORIZONTAL_ALIGN_CENTER_NOSIDES)?0:x_space);
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int y=Top()+m_padding_top+
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((m_vertical_align==VERTICAL_ALIGN_TOP||m_vertical_align==VERTICAL_ALIGN_CENTER_NOSIDES)?0:y_space);
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for(int j=0;j<ControlsTotal();j++)
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{
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CWnd *control=Control(j);
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if(control==NULL)
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continue;
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if(control==GetPointer(m_background))
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continue;
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control.Move(x,y);
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if(control.Type()==CLASS_LAYOUT)
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{
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CBox *container=control;
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container.Pack();
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}
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if (j<ControlsTotal()-1)
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Shift(GetPointer(control),x,y,x_space,y_space);
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}
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return(true);
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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void CBox::Padding(const int top,const int right,const int bottom,const int left)
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{
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m_padding_top=top;
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m_padding_right=right;
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m_padding_bottom=bottom;
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m_padding_left=left;
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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void CBox::Padding(const int padding)
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{
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m_padding_top=padding;
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m_padding_right=padding;
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m_padding_bottom=padding;
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m_padding_left=padding;
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}
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//+------------------------------------------------------------------+
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