protected override void OnPaint(PaintEventArgs e)
{
if (m_bThemed && UxThemeManager.VisualStylesEnabled())
{
DrawThemedBar(e.Graphics);
}
else
{
DrawNonThemedBar(e.Graphics);
}
base.OnPaint(e);
}
internal void DrawCheckBox(Graphics GFX, Rectangle drawRect)
{
if (drawRect.Width <= 0)
{
return;
}
if (m_Value == null)
{
return;
}
Rectangle valRect = GetValueRect(GFX, drawRect);
if (UxThemeManager.VisualStylesEnabled())
{
Rectangle clipRect = Rectangle.Intersect(Rectangle.Round(GFX.ClipBounds), drawRect);
IntPtr hdc = GFX.GetHdc();
m_ParentRow.Parent.Themes[m_ParentRow.Parent].DrawThemeBackground(UxThemeElements.BUTTON, hdc, (int)ButtonPart.Checkbox,
(bool)m_Value ? (int)CheckBoxState.CheckedNormal : (int)CheckBoxState.UncheckedNormal, ref valRect, ref clipRect);
GFX.ReleaseHdc(hdc);
}
else
{
// TODO: Do this with the Graphics object, not with an image
Bitmap ChkBox;
System.Reflection.Assembly thisExe;
thisExe = System.Reflection.Assembly.GetExecutingAssembly();
if ((bool)m_Value)
{
ChkBox = new Bitmap(thisExe.GetManifestResourceStream("DataList2.Checked.bmp"));
}
else
{
ChkBox = new Bitmap(thisExe.GetManifestResourceStream("DataList2.Unchecked.bmp"));
}
GFX.DrawImage(ChkBox, new Point(drawRect.X + (Width - ChkBox.Width) / 2,
drawRect.Y + (Height - ChkBox.Width) / 2));
}
#if DEBUG
Brush drawRectColor = new SolidBrush(Color.Green);
GFX.FillRectangle(drawRectColor, valRect);
drawRectColor.Dispose();
#endif
}
void WmNcpaint(ref Message m)
{
if (!UxThemeManager.VisualStylesEnabled())
{
return;
}
/////////////////////////////////////////////////////////////////////////////
// Get the DC of the window frame and paint the border using uxTheme API´s
/////////////////////////////////////////////////////////////////////////////
// set the part id to TextBox
int partId = (int)ComboBoxPart.Border;
// define the windows frame rectangle of the TextBox
RECT windowRect;
Win32.GetWindowRect(this.Handle, out windowRect);
windowRect.Right -= windowRect.Left; windowRect.Bottom -= windowRect.Top;
windowRect.Top = windowRect.Left = 0;
// get the device context of the window frame
IntPtr hDC = Win32.GetWindowDC(this.Handle);
// define a rectangle inside the borders and exclude it from the DC
RECT clientRect = windowRect;
clientRect.Left += this.borderRect.Left;
clientRect.Top += this.borderRect.Top;
clientRect.Right -= this.borderRect.Right;
clientRect.Bottom -= this.borderRect.Bottom;
Win32.ExcludeClipRect(hDC, clientRect.Left, clientRect.Top, clientRect.Right, clientRect.Bottom);
// make sure the background is updated when transparent background is used.
if (m_ThemeManager[this].IsThemeBackgroundPartiallyTransparent(UxThemeElements.COMBOBOX, partId, m_nStateId))
{
m_ThemeManager[this].DrawThemeParentBackground(hDC, ref windowRect);
}
// draw background
m_ThemeManager[this].DrawThemeBackground(UxThemeElements.COMBOBOX, hDC, partId, m_nStateId, ref windowRect, IntPtr.Zero);
// release dc
Win32.ReleaseDC(this.Handle, hDC);
// we have processed the message so set the result to zero
m.Result = IntPtr.Zero;
base.WndProc(ref m);
}
internal void DrawProgressBar(Graphics GFX, Rectangle drawRect)
{
if (drawRect.Width <= 0)
{
return;
}
if (m_Value == null)
{
return;
}
Rectangle clipRect = Rectangle.Ceiling(GFX.ClipBounds);
clipRect.Intersect(drawRect);
if (clipRect.IsEmpty)
{
return;
}
RectangleF oldClip = GFX.ClipBounds;
GFX.SetClip(clipRect);
double dblPercent = (double)Convert.ToDouble(m_Value) / 100.0;
Rectangle valRect = GetValueRect(GFX, drawRect);
if (UxThemeManager.VisualStylesEnabled())
{
int oldWidth = valRect.Width;
IntPtr hdc = GFX.GetHdc();
UxThemeManager themeManager = m_ParentRow.Parent.Themes[m_ParentRow.Parent];
themeManager.DrawThemeBackground(UxThemeElements.PROGRESS, hdc, 1, 1, ref valRect, ref clipRect);
valRect.Width = (int)(dblPercent * valRect.Width);
themeManager.DrawThemeBackground(UxThemeElements.PROGRESS, hdc, 3, 1, ref valRect, ref clipRect);
GFX.ReleaseHdc(hdc);
#if DEBUG
valRect.Width = oldWidth;
Brush drawRectColor = new SolidBrush(Color.Green);
GFX.FillRectangle(drawRectColor, valRect);
drawRectColor.Dispose();
#endif
}
else
{
Brush bordercolor = new SolidBrush(Color.DarkGray);
Brush backcolor = new SolidBrush(Color.LightGray);
Brush b = new SolidBrush(Color.Green);
LinearGradientBrush lb = new LinearGradientBrush(valRect, Color.FromArgb(225, Color.White), Color.FromArgb(75, Color.Transparent), LinearGradientMode.Vertical);
GFX.FillRectangle(bordercolor, valRect);
valRect.Inflate(-1, -1);
GFX.FillRectangle(backcolor, valRect);
int oldWidth = valRect.Width;
valRect.Width = (int)(dblPercent * valRect.Width);
GFX.FillRectangle(b, valRect);
valRect.Width = oldWidth;
GFX.FillRectangle(lb, valRect);
#if DEBUG
Brush drawRectColor = new SolidBrush(Color.Green);
valRect.Inflate(1, 1);
GFX.FillRectangle(drawRectColor, valRect);
drawRectColor.Dispose();
#endif
backcolor.Dispose();
bordercolor.Dispose();
b.Dispose();
lb.Dispose();
}
GFX.SetClip(oldClip);
}
protected override void OnPaint(PaintEventArgs e)
{
try
{
if (m_bIsComboBox)
{
Row CurSel = m_RowWnd.CurrSel;
bool bHaveRow = m_RowWnd.CurrSel != null;
SolidBrush Backcolor;
if (m_AllowRowColorCombo && bHaveRow)
{
Backcolor = new SolidBrush(m_RowWnd.GetRowColor(ColorSelection.BackColor, m_RowWnd.CurrSel));
}
else
{
Backcolor = new SolidBrush(m_RowWnd.BackColor);
}
e.Graphics.FillRectangle(Backcolor, this.ClientRectangle);
Backcolor.Dispose();
Rectangle BtnRect = GetButtonRect();
if (UxThemeManager.VisualStylesEnabled())
{
IntPtr hDC = e.Graphics.GetHdc();
m_ThemeManager[this].DrawThemeBackground(UxThemeElements.COMBOBOX, hDC, (int)ComboBoxPart.DropDownButtonRight,
GetComboButtonState(), ref BtnRect, IntPtr.Zero);
e.Graphics.ReleaseHdc(hDC);
}
int nWidth = this.ClientRectangle.Width - BtnRect.Width - 2;
if (nWidth > 0)
{
int nHeight = this.ClientRectangle.Height - 2;
if (nHeight > 0)
{
bool bNeedSelColor = (IsDroppedDown || ContainsFocus) && !ReadOnly;
if (bNeedSelColor)
{
SolidBrush SelBackcolor;
if (m_AllowRowColorCombo && bHaveRow)
{
SelBackcolor = new SolidBrush(m_RowWnd.GetRowColor(ColorSelection.SelBackColor, CurSel));
}
else
{
SelBackcolor = new SolidBrush(SystemColors.Highlight);
}
e.Graphics.FillRectangle(SelBackcolor, 1, 1, nWidth, nHeight);
SelBackcolor.Dispose();
Pen p = new Pen(Color.DarkGray);
p.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot;
e.Graphics.DrawRectangle(p, 1, 1, nWidth, nHeight);
p.Dispose();
}
nWidth -= 4;
nHeight -= 8;
if (nWidth > 0 && nHeight > 0)
{
StringFormat sf = new StringFormat();
sf.FormatFlags = System.Drawing.StringFormatFlags.NoWrap;
sf.Trimming = System.Drawing.StringTrimming.EllipsisCharacter;
sf.Alignment = StringAlignment.Near;
sf.LineAlignment = StringAlignment.Center;
Brush ForText;
if (bHaveRow)
{
ForText = new SolidBrush(m_RowWnd.GetRowColor(bNeedSelColor ? ColorSelection.SelForeColor : ColorSelection.ForeColor, CurSel));
}
else
{
ForText = new SolidBrush(bNeedSelColor ? SystemColors.HighlightText : this.ForeColor);
}
e.Graphics.DrawString(bHaveRow ? CurSel.ToString(m_strComboFormat) : m_strComboText,
this.Font, ForText, new Rectangle(5, 5, nWidth, nHeight), sf);
ForText.Dispose();
sf.Dispose();
}
}
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
base.OnPaint(e);
}
private void WmNccalcsize(ref Message m)
{
// we visual styles are not enabled and BorderStyle is not Fixed3D then we have nothing more to do.
if (!UxThemeManager.VisualStylesEnabled())
{
return;
}
// contains detailed information about WM_NCCALCSIZE message
NCCALCSIZE_PARAMS par = new NCCALCSIZE_PARAMS();
// contains the window frame RECT
RECT windowRect;
if (m.WParam == IntPtr.Zero) // LParam points to a RECT struct
{
windowRect = (RECT)Marshal.PtrToStructure(m.LParam, typeof(RECT));
}
else // LParam points to a NCCALCSIZE_PARAMS struct
{
par = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
windowRect = par.rgrc0;
}
// contains the client area of the control
RECT contentRect;
// get the DC
IntPtr hDC = Win32.GetWindowDC(this.Handle);
// find out how much space the borders needs
if (m_ThemeManager[this].GetThemeBackgroundContentRect(UxThemeElements.COMBOBOX, hDC, (int)ComboBoxPart.Border, (int)ComboBoxState.Normal, ref windowRect, out contentRect))
{
// shrink the client area the make more space for containing text.
contentRect.Inflate(-1, -1);
// remember the space of the borders
this.borderRect = new RECT(contentRect.Left - windowRect.Left
, contentRect.Top - windowRect.Top
, windowRect.Right - contentRect.Right
, windowRect.Bottom - contentRect.Bottom);
// update LParam of the message with the new client area
if (m.WParam == IntPtr.Zero)
{
Marshal.StructureToPtr(contentRect, m.LParam, false);
}
else
{
par.rgrc0 = contentRect;
Marshal.StructureToPtr(par, m.LParam, false);
}
// force the control to redraw it´s client area
m.Result = new IntPtr(0x200 | 0x100);
}
// release DC
Win32.ReleaseDC(this.Handle, hDC);
base.WndProc(ref m);
}