public static bool SetViewportExtEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.SIZE size)
{
bool retVal = IntSetViewportExtEx(hDC, x, y, size);
DbgUtil.AssertWin32(retVal, "SetViewportExtEx([hdc=0x{0:X8}], x=[{1}], y=[{2}], [out size]) failed.", hDC.Handle, x, y);
return(retVal);
}
/// <devdoc>
/// <para>
/// Returns the Size of the given text using the specified font if not null, otherwise the font currently
/// set in the dc is used.
/// This method is used to get the size in points of a line of text; it uses GetTextExtentPoint32 function
/// which computes the width and height of the text ignoring TAB\CR\LF characters.
/// A text extent is the distance between the beginning of the space and a character that will fit in the space.
/// </para>
/// </devdoc>
public Size GetTextExtent(string text, WindowsFont font)
{
if (string.IsNullOrEmpty(text))
{
return(Size.Empty);
}
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
HandleRef hdc = new HandleRef(null, this.dc.Hdc);
if (font != null)
{
this.dc.SelectFont(font);
}
IntUnsafeNativeMethods.GetTextExtentPoint32(hdc, text, size);
// Unselect, but not from Measurement DC as it keeps the same
// font selected for perf reasons.
if (font != null && !MeasurementDCInfo.IsMeasurementDC(this.dc))
{
this.dc.ResetFont();
}
return(new Size(size.cx, size.cy));
}
public static bool GetViewportExtEx(HandleRef hdc, [In, Out] IntNativeMethods.SIZE lpSize)
{
bool retVal = IntGetViewportExtEx(hdc, lpSize);
DbgUtil.AssertWin32(retVal, "GetViewportExtEx([hdc=0x{0:X8}], [out size]) failed.", hdc.Handle);
return(retVal);
}
/// <devdoc>
/// Sets the DC Viewport extent to the specified value and returns its previous value; extent values are in device units.
/// </devdoc>
public Size SetViewportExtent(Size newExtent)
{
IntNativeMethods.SIZE oldExtent = new IntNativeMethods.SIZE();
IntUnsafeNativeMethods.SetViewportExtEx(new HandleRef(this, this.Hdc), newExtent.Width, newExtent.Height, oldExtent);
return(oldExtent.ToSize());
}
public static int GetTextExtentPoint32(HandleRef hDC, string text, [In, Out] IntNativeMethods.SIZE size)
{
int byteCount = text.Length;
int retVal = GetTextExtentPoint32W(hDC, text, text.Length, size);
DbgUtil.AssertWin32(retVal != 0, "GetTextExtentPoint32(hdc=[0x{0:X8}], text=[{1}], size=[{2}] failed.", hDC.Handle, text, size);
return(retVal);
}
private void DrawTreeItem(string itemText, int imageIndex, IntPtr dc, System.Windows.Forms.NativeMethods.RECT rcIn, int state, int backColor, int textColor)
{
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
IntNativeMethods.RECT lpRect = new IntNativeMethods.RECT();
IntNativeMethods.RECT rect = new IntNativeMethods.RECT(rcIn.left, rcIn.top, rcIn.right, rcIn.bottom);
ImageList imageList = base.ImageList;
IntPtr zero = IntPtr.Zero;
if ((state & 2) != 0)
{
zero = System.Windows.Forms.SafeNativeMethods.SelectObject(new HandleRef(null, dc), new HandleRef(base.Parent, base.Parent.FontHandle));
}
if (((state & 1) != 0) && (this.hbrushDither != IntPtr.Zero))
{
this.FillRectDither(dc, rcIn);
System.Windows.Forms.SafeNativeMethods.SetBkMode(new HandleRef(null, dc), 1);
}
else
{
System.Windows.Forms.SafeNativeMethods.SetBkColor(new HandleRef(null, dc), backColor);
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, 6, ref rect, null, 0, null);
}
IntUnsafeNativeMethods.GetTextExtentPoint32(new HandleRef(null, dc), itemText, size);
lpRect.left = (rect.left + 0x10) + 8;
lpRect.top = rect.top + (((rect.bottom - rect.top) - size.cy) >> 1);
lpRect.bottom = lpRect.top + size.cy;
lpRect.right = rect.right;
System.Windows.Forms.SafeNativeMethods.SetTextColor(new HandleRef(null, dc), textColor);
IntUnsafeNativeMethods.DrawText(new HandleRef(null, dc), itemText, ref lpRect, 0x8804);
System.Windows.Forms.SafeNativeMethods.ImageList_Draw(new HandleRef(imageList, imageList.Handle), imageIndex, new HandleRef(null, dc), 4, rect.top + (((rect.bottom - rect.top) - 0x10) >> 1), 1);
if ((state & 2) != 0)
{
int clr = System.Windows.Forms.SafeNativeMethods.SetBkColor(new HandleRef(null, dc), ColorTranslator.ToWin32(SystemColors.ControlLightLight));
lpRect.left = rect.left;
lpRect.top = rect.top;
lpRect.bottom = rect.top + 1;
lpRect.right = rect.right;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, 2, ref lpRect, null, 0, null);
lpRect.bottom = rect.bottom;
lpRect.right = rect.left + 1;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, 2, ref lpRect, null, 0, null);
System.Windows.Forms.SafeNativeMethods.SetBkColor(new HandleRef(null, dc), ColorTranslator.ToWin32(SystemColors.ControlDark));
lpRect.left = rect.left;
lpRect.right = rect.right;
lpRect.top = rect.bottom - 1;
lpRect.bottom = rect.bottom;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, 2, ref lpRect, null, 0, null);
lpRect.left = rect.right - 1;
lpRect.top = rect.top;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, 2, ref lpRect, null, 0, null);
System.Windows.Forms.SafeNativeMethods.SetBkColor(new HandleRef(null, dc), clr);
}
if (zero != IntPtr.Zero)
{
System.Windows.Forms.SafeNativeMethods.SelectObject(new HandleRef(null, dc), new HandleRef(null, zero));
}
}
public static int GetTextExtentPoint32(HandleRef hDC, string text, [In, Out] IntNativeMethods.SIZE size)
{
int retVal;
int byteCount = text.Length;
if (Marshal.SystemDefaultCharSize == 1)
{
// Convert Unicode string to ANSI.
byteCount = IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, null, 0, IntPtr.Zero, IntPtr.Zero);
byte[] textBytes = new byte[byteCount];
IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, textBytes, textBytes.Length, IntPtr.Zero, IntPtr.Zero);
byteCount = Math.Min(text.Length, IntNativeMethods.MaxTextLengthInWin9x);
retVal = GetTextExtentPoint32A(hDC, textBytes, byteCount, size);
}
else
{
retVal = GetTextExtentPoint32W(hDC, text, text.Length, size);
}
DbgUtil.AssertWin32(retVal != 0, "GetTextExtentPoint32(hdc=[0x{0:X8}], text=[{1}], size=[{2}] failed.", hDC.Handle, text, size);
return(retVal);
}
public static extern int GetTextExtentPoint32A(HandleRef hDC, byte[] lpszString, int byteCount, [In, Out] IntNativeMethods.SIZE size);
public static extern int GetTextExtentPoint32W(HandleRef hDC, string text, int len, [In, Out] IntNativeMethods.SIZE size);
private SizeF GetFontAutoScaleDimensions()
{
SizeF retval = SizeF.Empty;
// Windows uses CreateCompatibleDC(NULL) to get a
// memory DC for the monitor the application is currently
// on.
IntPtr dc = UnsafeNativeMethods.CreateCompatibleDC(NativeMethods.NullHandleRef);
if (dc == IntPtr.Zero) {
throw new Win32Exception();
}
HandleRef hdc = new HandleRef(this, dc);
try {
// We clone the Windows scaling function here as closely as
// possible. They use textmetric for height, and textmetric
// for width of fixed width fonts. For variable width fonts
// they use GetTextExtentPoint32 and pass in a long a-Z string.
// We must do the same here if our dialogs are to scale in a
// similar fashion.
HandleRef hfont = new HandleRef(this, FontHandle);
HandleRef hfontOld = new HandleRef(this, SafeNativeMethods.SelectObject(hdc, hfont));
try {
NativeMethods.TEXTMETRIC tm = new NativeMethods.TEXTMETRIC();
SafeNativeMethods.GetTextMetrics(hdc, ref tm);
retval.Height = tm.tmHeight;
if ((tm.tmPitchAndFamily & NativeMethods.TMPF_FIXED_PITCH) != 0) {
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
IntUnsafeNativeMethods.GetTextExtentPoint32(hdc, fontMeasureString, size);
// Note: intentional integer round off here for Win32 compat
//retval.Width = (float)(((size.cx / 26) + 1) / 2);
retval.Width = (int)Math.Round(((float)size.cx) / ((float)fontMeasureString.Length));
}
else {
retval.Width = tm.tmAveCharWidth;
}
}
finally {
SafeNativeMethods.SelectObject(hdc, hfontOld);
}
}
finally {
UnsafeNativeMethods.DeleteCompatibleDC(hdc);
}
return retval;
}
public virtual void PopupDialog(int row)
{
GridEntry gridEntryFromRow = this.GetGridEntryFromRow(row);
if (gridEntryFromRow != null)
{
if ((this.dropDownHolder != null) && this.dropDownHolder.GetUsed())
{
this.CloseDropDown();
}
else
{
bool needsDropDownButton = gridEntryFromRow.NeedsDropDownButton;
bool enumerable = gridEntryFromRow.Enumerable;
bool needsCustomEditorButton = gridEntryFromRow.NeedsCustomEditorButton;
if (enumerable && !needsDropDownButton)
{
this.DropDownListBox.Items.Clear();
object propertyValue = gridEntryFromRow.PropertyValue;
object[] propertyValueList = gridEntryFromRow.GetPropertyValueList();
int num = 0;
IntPtr dC = System.Windows.Forms.UnsafeNativeMethods.GetDC(new HandleRef(this.DropDownListBox, this.DropDownListBox.Handle));
IntPtr handle = this.Font.ToHfont();
System.Internal.HandleCollector.Add(handle, System.Windows.Forms.NativeMethods.CommonHandles.GDI);
System.Windows.Forms.NativeMethods.TEXTMETRIC lptm = new System.Windows.Forms.NativeMethods.TEXTMETRIC();
int currentValueIndex = -1;
try
{
handle = System.Windows.Forms.SafeNativeMethods.SelectObject(new HandleRef(this.DropDownListBox, dC), new HandleRef(this.Font, handle));
currentValueIndex = this.GetCurrentValueIndex(gridEntryFromRow);
if ((propertyValueList != null) && (propertyValueList.Length > 0))
{
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
for (int i = 0; i < propertyValueList.Length; i++)
{
string propertyTextValue = gridEntryFromRow.GetPropertyTextValue(propertyValueList[i]);
this.DropDownListBox.Items.Add(propertyTextValue);
IntUnsafeNativeMethods.GetTextExtentPoint32(new HandleRef(this.DropDownListBox, dC), propertyTextValue, size);
num = Math.Max(size.cx, num);
}
}
System.Windows.Forms.SafeNativeMethods.GetTextMetrics(new HandleRef(this.DropDownListBox, dC), ref lptm);
num += (2 + lptm.tmMaxCharWidth) + SystemInformation.VerticalScrollBarWidth;
handle = System.Windows.Forms.SafeNativeMethods.SelectObject(new HandleRef(this.DropDownListBox, dC), new HandleRef(this.Font, handle));
}
finally
{
System.Windows.Forms.SafeNativeMethods.DeleteObject(new HandleRef(this.Font, handle));
System.Windows.Forms.UnsafeNativeMethods.ReleaseDC(new HandleRef(this.DropDownListBox, this.DropDownListBox.Handle), new HandleRef(this.DropDownListBox, dC));
}
if (currentValueIndex != -1)
{
this.DropDownListBox.SelectedIndex = currentValueIndex;
}
this.SetFlag(0x40, false);
this.DropDownListBox.Height = Math.Max(lptm.tmHeight + 2, Math.Min(200, this.DropDownListBox.PreferredHeight));
this.DropDownListBox.Width = Math.Max(num, this.GetRectangle(row, 2).Width);
try
{
bool flag4 = this.DropDownListBox.Items.Count > (this.DropDownListBox.Height / this.DropDownListBox.ItemHeight);
this.SetFlag(0x400, flag4);
this.DropDownControl(this.DropDownListBox);
}
finally
{
this.SetFlag(0x400, false);
}
this.Refresh();
}
else if (needsCustomEditorButton || needsDropDownButton)
{
try
{
this.SetFlag(0x10, true);
this.Edit.DisableMouseHook = true;
try
{
this.SetFlag(0x400, gridEntryFromRow.UITypeEditor.IsDropDownResizable);
gridEntryFromRow.EditPropertyValue(this);
}
finally
{
this.SetFlag(0x400, false);
}
}
finally
{
this.SetFlag(0x10, false);
this.Edit.DisableMouseHook = false;
}
this.Refresh();
if (this.FocusInside)
{
this.SelectGridEntry(gridEntryFromRow, false);
}
}
}
}
}
public Size SetViewportExtent(Size newExtent)
{
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
IntUnsafeNativeMethods.SetViewportExtEx(new HandleRef(this, this.Hdc), newExtent.Width, newExtent.Height, size);
return size.ToSize();
}
private void DrawTreeItem(string itemText, int imageIndex, IntPtr dc, NativeMethods.RECT rcIn,
int state, int backColor, int textColor) {
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
IntNativeMethods.RECT rc2 = new IntNativeMethods.RECT();
IntNativeMethods.RECT rc = new IntNativeMethods.RECT(rcIn.left, rcIn.top, rcIn.right, rcIn.bottom);
ImageList imagelist = this.ImageList;
IntPtr hfontOld = IntPtr.Zero;
// Select the font of the dialog, so we don't get the underlined font
// when the item is being tracked
if ((state & STATE_HOT) != 0)
hfontOld = SafeNativeMethods.SelectObject(new HandleRef(null, dc), new HandleRef(Parent, ((Control)Parent).FontHandle));
// Fill the background
if (((state & STATE_SELECTED) != 0) && (hbrushDither != IntPtr.Zero)) {
FillRectDither(dc, rcIn);
SafeNativeMethods.SetBkMode(new HandleRef(null, dc), NativeMethods.TRANSPARENT);
}
else {
SafeNativeMethods.SetBkColor(new HandleRef(null, dc), backColor);
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, NativeMethods.ETO_CLIPPED | NativeMethods.ETO_OPAQUE, ref rc, null, 0, null);
}
// Get the height of the font
IntUnsafeNativeMethods.GetTextExtentPoint32(new HandleRef(null, dc), itemText, size);
// Draw the caption
rc2.left = rc.left + SIZE_ICON_X + 2 * PADDING_HORZ;
rc2.top = rc.top + (((rc.bottom - rc.top) - size.cy) >> 1);
rc2.bottom = rc2.top + size.cy;
rc2.right = rc.right;
SafeNativeMethods.SetTextColor(new HandleRef(null, dc), textColor);
IntUnsafeNativeMethods.DrawText(new HandleRef(null, dc), itemText, ref rc2,
IntNativeMethods.DT_LEFT | IntNativeMethods.DT_VCENTER | IntNativeMethods.DT_END_ELLIPSIS | IntNativeMethods.DT_NOPREFIX);
SafeNativeMethods.ImageList_Draw(new HandleRef(imagelist, imagelist.Handle), imageIndex, new HandleRef(null, dc),
PADDING_HORZ, rc.top + (((rc.bottom - rc.top) - SIZE_ICON_Y) >> 1),
NativeMethods.ILD_TRANSPARENT);
// Draw the hot-tracking border if needed
if ((state & STATE_HOT) != 0) {
int savedColor;
// top left
savedColor = SafeNativeMethods.SetBkColor(new HandleRef(null, dc), ColorTranslator.ToWin32(SystemColors.ControlLightLight));
rc2.left = rc.left;
rc2.top = rc.top;
rc2.bottom = rc.top + 1;
rc2.right = rc.right;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, NativeMethods.ETO_OPAQUE, ref rc2, null, 0, null);
rc2.bottom = rc.bottom;
rc2.right = rc.left + 1;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, NativeMethods.ETO_OPAQUE, ref rc2, null, 0, null);
// bottom right
SafeNativeMethods.SetBkColor(new HandleRef(null, dc), ColorTranslator.ToWin32(SystemColors.ControlDark));
rc2.left = rc.left;
rc2.right = rc.right;
rc2.top = rc.bottom - 1;
rc2.bottom = rc.bottom;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, NativeMethods.ETO_OPAQUE, ref rc2, null, 0, null);
rc2.left = rc.right - 1;
rc2.top = rc.top;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, NativeMethods.ETO_OPAQUE, ref rc2, null, 0, null);
SafeNativeMethods.SetBkColor(new HandleRef(null, dc), savedColor);
}
if (hfontOld != IntPtr.Zero)
SafeNativeMethods.SelectObject(new HandleRef(null, dc), new HandleRef(null, hfontOld));
}
/// <devdoc>
/// <para>
/// Returns the Size of the given text using the specified font if not null, otherwise the font currently
/// set in the dc is used.
/// This method is used to get the size in points of a line of text; it uses GetTextExtentPoint32 function
/// which computes the width and height of the text ignoring TAB\CR\LF characters.
/// A text extent is the distance between the beginning of the space and a character that will fit in the space.
/// </para>
/// </devdoc>
public Size GetTextExtent(string text, WindowsFont font)
{
if (string.IsNullOrEmpty(text))
{
return Size.Empty;
}
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
HandleRef hdc = new HandleRef(null, this.dc.Hdc);
if (font != null)
{
this.dc.SelectFont(font);
}
IntUnsafeNativeMethods.GetTextExtentPoint32(hdc, text, size);
// Unselect, but not from Measurement DC as it keeps the same
// font selected for perf reasons.
if (font != null && !MeasurementDCInfo.IsMeasurementDC(this.dc)) {
this.dc.ResetFont();
}
return new Size(size.cx, size.cy);
}
public Size GetTextExtent(string text, WindowsFont font)
{
if (string.IsNullOrEmpty(text))
{
return Size.Empty;
}
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
HandleRef hDC = new HandleRef(null, this.dc.Hdc);
if (font != null)
{
this.dc.SelectFont(font);
}
IntUnsafeNativeMethods.GetTextExtentPoint32(hDC, text, size);
if ((font != null) && !MeasurementDCInfo.IsMeasurementDC(this.dc))
{
this.dc.ResetFont();
}
return new Size(size.cx, size.cy);
}
public static extern bool IntGetViewportExtEx(HandleRef hdc, [In, Out] IntNativeMethods.SIZE lpSize);
private void DrawTreeItem(string itemText, int imageIndex, IntPtr dc, System.Windows.Forms.NativeMethods.RECT rcIn, int state, int backColor, int textColor)
{
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
IntNativeMethods.RECT lpRect = new IntNativeMethods.RECT();
IntNativeMethods.RECT rect = new IntNativeMethods.RECT(rcIn.left, rcIn.top, rcIn.right, rcIn.bottom);
ImageList imageList = base.ImageList;
IntPtr zero = IntPtr.Zero;
if ((state & 2) != 0)
{
zero = System.Windows.Forms.SafeNativeMethods.SelectObject(new HandleRef(null, dc), new HandleRef(base.Parent, base.Parent.FontHandle));
}
if (((state & 1) != 0) && (this.hbrushDither != IntPtr.Zero))
{
this.FillRectDither(dc, rcIn);
System.Windows.Forms.SafeNativeMethods.SetBkMode(new HandleRef(null, dc), 1);
}
else
{
System.Windows.Forms.SafeNativeMethods.SetBkColor(new HandleRef(null, dc), backColor);
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, 6, ref rect, null, 0, null);
}
IntUnsafeNativeMethods.GetTextExtentPoint32(new HandleRef(null, dc), itemText, size);
lpRect.left = (rect.left + 0x10) + 8;
lpRect.top = rect.top + (((rect.bottom - rect.top) - size.cy) >> 1);
lpRect.bottom = lpRect.top + size.cy;
lpRect.right = rect.right;
System.Windows.Forms.SafeNativeMethods.SetTextColor(new HandleRef(null, dc), textColor);
IntUnsafeNativeMethods.DrawText(new HandleRef(null, dc), itemText, ref lpRect, 0x8804);
System.Windows.Forms.SafeNativeMethods.ImageList_Draw(new HandleRef(imageList, imageList.Handle), imageIndex, new HandleRef(null, dc), 4, rect.top + (((rect.bottom - rect.top) - 0x10) >> 1), 1);
if ((state & 2) != 0)
{
int clr = System.Windows.Forms.SafeNativeMethods.SetBkColor(new HandleRef(null, dc), ColorTranslator.ToWin32(SystemColors.ControlLightLight));
lpRect.left = rect.left;
lpRect.top = rect.top;
lpRect.bottom = rect.top + 1;
lpRect.right = rect.right;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, 2, ref lpRect, null, 0, null);
lpRect.bottom = rect.bottom;
lpRect.right = rect.left + 1;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, 2, ref lpRect, null, 0, null);
System.Windows.Forms.SafeNativeMethods.SetBkColor(new HandleRef(null, dc), ColorTranslator.ToWin32(SystemColors.ControlDark));
lpRect.left = rect.left;
lpRect.right = rect.right;
lpRect.top = rect.bottom - 1;
lpRect.bottom = rect.bottom;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, 2, ref lpRect, null, 0, null);
lpRect.left = rect.right - 1;
lpRect.top = rect.top;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, 2, ref lpRect, null, 0, null);
System.Windows.Forms.SafeNativeMethods.SetBkColor(new HandleRef(null, dc), clr);
}
if (zero != IntPtr.Zero)
{
System.Windows.Forms.SafeNativeMethods.SelectObject(new HandleRef(null, dc), new HandleRef(null, zero));
}
}
public static extern bool IntSetViewportExtEx(HandleRef hDC, int x, int y, [In, Out] IntNativeMethods.SIZE size);
public virtual void PopupDialog(int row) {
Debug.WriteLineIf(CompModSwitches.DebugGridView.TraceVerbose, "PropertyGridView:PopupDialog");
GridEntry gridEntry = GetGridEntryFromRow(row);
if (gridEntry != null) {
if (dropDownHolder != null && dropDownHolder.GetUsed()) {
CloseDropDown();
return;
}
bool fBtnDropDown = gridEntry.NeedsDropDownButton;
bool fEnum = gridEntry.Enumerable;
bool fBtnDialog = gridEntry.NeedsCustomEditorButton;
if (fEnum && !fBtnDropDown) {
DropDownListBox.Items.Clear();
object value = gridEntry.PropertyValue;
object[] rgItems = gridEntry.GetPropertyValueList();
int maxWidth = 0;
// The listbox draws with GDI, not GDI+. So, we
// use a normal DC here.
//
IntPtr hdc = UnsafeNativeMethods.GetDC(new HandleRef(DropDownListBox, DropDownListBox.Handle));
IntPtr hFont = Font.ToHfont();
System.Internal.HandleCollector.Add(hFont, NativeMethods.CommonHandles.GDI);
NativeMethods.TEXTMETRIC tm = new NativeMethods.TEXTMETRIC();
int iSel = -1;
try {
hFont = SafeNativeMethods.SelectObject(new HandleRef(DropDownListBox, hdc), new HandleRef(Font, hFont));
iSel = GetCurrentValueIndex(gridEntry);
if (rgItems != null && rgItems.Length > 0) {
string s;
IntNativeMethods.SIZE textSize = new IntNativeMethods.SIZE();
for (int i = 0; i < rgItems.Length; i++) {
s = gridEntry.GetPropertyTextValue(rgItems[i]);
DropDownListBox.Items.Add(s);
IntUnsafeNativeMethods.GetTextExtentPoint32(new HandleRef(DropDownListBox, hdc), s, textSize);
maxWidth = Math.Max((int) textSize.cx, maxWidth);
}
}
SafeNativeMethods.GetTextMetrics(new HandleRef(DropDownListBox, hdc), ref tm);
// border + padding + scrollbar
maxWidth += 2 + tm.tmMaxCharWidth + SystemInformation.VerticalScrollBarWidth;
hFont = SafeNativeMethods.SelectObject(new HandleRef(DropDownListBox, hdc), new HandleRef(Font, hFont));
}
finally {
SafeNativeMethods.DeleteObject(new HandleRef(Font, hFont));
UnsafeNativeMethods.ReleaseDC(new HandleRef(DropDownListBox, DropDownListBox.Handle), new HandleRef(DropDownListBox, hdc));
}
// [....], 4/25/1998 - must check for -1 and not call the set...
if (iSel != -1) {
DropDownListBox.SelectedIndex = iSel;
}
SetFlag(FlagDropDownCommit, false);
DropDownListBox.Height = Math.Max(tm.tmHeight + 2, Math.Min(maxListBoxHeight, DropDownListBox.PreferredHeight));
DropDownListBox.Width = Math.Max(maxWidth, GetRectangle(row,ROWVALUE).Width);
try {
bool resizable = DropDownListBox.Items.Count > (DropDownListBox.Height / DropDownListBox.ItemHeight);
SetFlag(FlagResizableDropDown, resizable);
DropDownControl(DropDownListBox);
}
finally {
SetFlag(FlagResizableDropDown, false);
}
Refresh();
}
else if (fBtnDialog || fBtnDropDown) {
try {
SetFlag(FlagInPropertySet, true);
Edit.DisableMouseHook = true;
try {
SetFlag(FlagResizableDropDown, gridEntry.UITypeEditor.IsDropDownResizable);
gridEntry.EditPropertyValue(this);
}
finally {
SetFlag(FlagResizableDropDown, false);
}
}
finally {
SetFlag(FlagInPropertySet, false);
Edit.DisableMouseHook = false;
}
Refresh();
// as/urt 31468 -- we can't do this because
// some dialogs are non-modal, and
// this will pull focus from them.
// See ASURT 31468.
//
//if (fBtnDialog) {
// this.Focus();
//}
if (FocusInside) {
SelectGridEntry(gridEntry, false);
}
}
}
}
private void DrawTreeItem(string itemText, int imageIndex, IntPtr dc, NativeMethods.RECT rcIn,
int state, int backColor, int textColor)
{
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
IntNativeMethods.RECT rc2 = new IntNativeMethods.RECT();
IntNativeMethods.RECT rc = new IntNativeMethods.RECT(rcIn.left, rcIn.top, rcIn.right, rcIn.bottom);
ImageList imagelist = this.ImageList;
IntPtr hfontOld = IntPtr.Zero;
// Select the font of the dialog, so we don't get the underlined font
// when the item is being tracked
if ((state & STATE_HOT) != 0)
{
hfontOld = SafeNativeMethods.SelectObject(new HandleRef(null, dc), new HandleRef(Parent, ((Control)Parent).FontHandle));
}
// Fill the background
if (((state & STATE_SELECTED) != 0) && (hbrushDither != IntPtr.Zero))
{
FillRectDither(dc, rcIn);
SafeNativeMethods.SetBkMode(new HandleRef(null, dc), NativeMethods.TRANSPARENT);
}
else
{
SafeNativeMethods.SetBkColor(new HandleRef(null, dc), backColor);
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, NativeMethods.ETO_CLIPPED | NativeMethods.ETO_OPAQUE, ref rc, null, 0, null);
}
// Get the height of the font
IntUnsafeNativeMethods.GetTextExtentPoint32(new HandleRef(null, dc), itemText, size);
// Draw the caption
rc2.left = rc.left + SIZE_ICON_X + 2 * PADDING_HORZ;
rc2.top = rc.top + (((rc.bottom - rc.top) - size.cy) >> 1);
rc2.bottom = rc2.top + size.cy;
rc2.right = rc.right;
SafeNativeMethods.SetTextColor(new HandleRef(null, dc), textColor);
IntUnsafeNativeMethods.DrawText(new HandleRef(null, dc), itemText, ref rc2,
IntNativeMethods.DT_LEFT | IntNativeMethods.DT_VCENTER | IntNativeMethods.DT_END_ELLIPSIS | IntNativeMethods.DT_NOPREFIX);
SafeNativeMethods.ImageList_Draw(new HandleRef(imagelist, imagelist.Handle), imageIndex, new HandleRef(null, dc),
PADDING_HORZ, rc.top + (((rc.bottom - rc.top) - SIZE_ICON_Y) >> 1),
NativeMethods.ILD_TRANSPARENT);
// Draw the hot-tracking border if needed
if ((state & STATE_HOT) != 0)
{
int savedColor;
// top left
savedColor = SafeNativeMethods.SetBkColor(new HandleRef(null, dc), ColorTranslator.ToWin32(SystemColors.ControlLightLight));
rc2.left = rc.left;
rc2.top = rc.top;
rc2.bottom = rc.top + 1;
rc2.right = rc.right;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, NativeMethods.ETO_OPAQUE, ref rc2, null, 0, null);
rc2.bottom = rc.bottom;
rc2.right = rc.left + 1;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, NativeMethods.ETO_OPAQUE, ref rc2, null, 0, null);
// bottom right
SafeNativeMethods.SetBkColor(new HandleRef(null, dc), ColorTranslator.ToWin32(SystemColors.ControlDark));
rc2.left = rc.left;
rc2.right = rc.right;
rc2.top = rc.bottom - 1;
rc2.bottom = rc.bottom;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, NativeMethods.ETO_OPAQUE, ref rc2, null, 0, null);
rc2.left = rc.right - 1;
rc2.top = rc.top;
IntUnsafeNativeMethods.ExtTextOut(new HandleRef(null, dc), 0, 0, NativeMethods.ETO_OPAQUE, ref rc2, null, 0, null);
SafeNativeMethods.SetBkColor(new HandleRef(null, dc), savedColor);
}
if (hfontOld != IntPtr.Zero)
{
SafeNativeMethods.SelectObject(new HandleRef(null, dc), new HandleRef(null, hfontOld));
}
}
private SizeF GetFontAutoScaleDimensions()
{
SizeF empty = SizeF.Empty;
IntPtr handle = System.Windows.Forms.UnsafeNativeMethods.CreateCompatibleDC(System.Windows.Forms.NativeMethods.NullHandleRef);
if (handle == IntPtr.Zero)
{
throw new Win32Exception();
}
HandleRef hDC = new HandleRef(this, handle);
try
{
HandleRef hObject = new HandleRef(this, base.FontHandle);
HandleRef ref4 = new HandleRef(this, System.Windows.Forms.SafeNativeMethods.SelectObject(hDC, hObject));
try
{
System.Windows.Forms.NativeMethods.TEXTMETRIC lptm = new System.Windows.Forms.NativeMethods.TEXTMETRIC();
System.Windows.Forms.SafeNativeMethods.GetTextMetrics(hDC, ref lptm);
empty.Height = lptm.tmHeight;
if ((lptm.tmPitchAndFamily & 1) != 0)
{
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
IntUnsafeNativeMethods.GetTextExtentPoint32(hDC, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ", size);
empty.Width = (int) Math.Round((double) (((float) size.cx) / ((float) "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".Length)));
return empty;
}
empty.Width = lptm.tmAveCharWidth;
return empty;
}
finally
{
System.Windows.Forms.SafeNativeMethods.SelectObject(hDC, ref4);
}
}
finally
{
System.Windows.Forms.UnsafeNativeMethods.DeleteCompatibleDC(hDC);
}
return empty;
}