private void CreateScrollbars()
{
hscrollbar = new ImplicitHScrollBar();
hscrollbar.Visible = false;
hscrollbar.ValueChanged += new EventHandler(HandleScrollBar);
hscrollbar.Height = SystemInformation.HorizontalScrollBarHeight;
hscrollbar.use_manual_thumb_size = true;
hscrollbar.Scroll += new ScrollEventHandler(HandleScrollEvent);
vscrollbar = new ImplicitVScrollBar();
vscrollbar.Visible = false;
vscrollbar.ValueChanged += new EventHandler(HandleScrollBar);
vscrollbar.Width = SystemInformation.VerticalScrollBarWidth;
vscrollbar.use_manual_thumb_size = true;
vscrollbar.Scroll += new ScrollEventHandler(HandleScrollEvent);
sizegrip = new SizeGrip(this);
sizegrip.Visible = false;
}
// Constructor will go when complete, only for testing - pdb
internal TextBoxBase ()
{
alignment = HorizontalAlignment.Left;
accepts_return = false;
accepts_tab = false;
auto_size = true;
InternalBorderStyle = BorderStyle.Fixed3D;
actual_border_style = BorderStyle.Fixed3D;
character_casing = CharacterCasing.Normal;
hide_selection = true;
max_length = short.MaxValue;
password_char = '\0';
read_only = false;
word_wrap = true;
richtext = false;
show_selection = false;
enable_links = false;
list_links = new ArrayList ();
current_link = null;
show_caret_w_selection = (this is TextBox);
document = new Document(this);
document.WidthChanged += new EventHandler(document_WidthChanged);
document.HeightChanged += new EventHandler(document_HeightChanged);
//document.CaretMoved += new EventHandler(CaretMoved);
document.Wrap = false;
click_last = DateTime.Now;
click_mode = CaretSelection.Position;
MouseDown += new MouseEventHandler(TextBoxBase_MouseDown);
MouseUp += new MouseEventHandler(TextBoxBase_MouseUp);
MouseMove += new MouseEventHandler(TextBoxBase_MouseMove);
SizeChanged += new EventHandler(TextBoxBase_SizeChanged);
FontChanged += new EventHandler(TextBoxBase_FontOrColorChanged);
ForeColorChanged += new EventHandler(TextBoxBase_FontOrColorChanged);
MouseWheel += new MouseEventHandler(TextBoxBase_MouseWheel);
RightToLeftChanged += new EventHandler (TextBoxBase_RightToLeftChanged);
scrollbars = RichTextBoxScrollBars.None;
hscroll = new ImplicitHScrollBar();
hscroll.ValueChanged += new EventHandler(hscroll_ValueChanged);
hscroll.SetStyle (ControlStyles.Selectable, false);
hscroll.Enabled = false;
hscroll.Visible = false;
hscroll.Maximum = Int32.MaxValue;
vscroll = new ImplicitVScrollBar();
vscroll.ValueChanged += new EventHandler(vscroll_ValueChanged);
vscroll.SetStyle (ControlStyles.Selectable, false);
vscroll.Enabled = false;
vscroll.Visible = false;
vscroll.Maximum = Int32.MaxValue;
SuspendLayout ();
this.Controls.AddImplicit (hscroll);
this.Controls.AddImplicit (vscroll);
ResumeLayout ();
SetStyle(ControlStyles.UserPaint | ControlStyles.StandardClick, false);
#if NET_2_0
SetStyle(ControlStyles.UseTextForAccessibility, false);
base.SetAutoSizeMode (AutoSizeMode.GrowAndShrink);
#endif
canvas_width = ClientSize.Width;
canvas_height = ClientSize.Height;
document.ViewPortWidth = canvas_width;
document.ViewPortHeight = canvas_height;
Cursor = Cursors.IBeam;
}
internal void SizeScrollBars()
{
if (lock_sizing)
{
return;
}
if (!IsHandleCreated)
{
return;
}
if (Controls.Count == 0 || ((Form)Controls [0]).WindowState == FormWindowState.Maximized)
{
if (hbar != null)
{
hbar.Visible = false;
}
if (vbar != null)
{
vbar.Visible = false;
}
if (sizegrip != null)
{
sizegrip.Visible = false;
}
return;
}
int right = 0;
int left = 0;
int top = 0;
int bottom = 0;
foreach (Form child in Controls)
{
if (!child.Visible)
{
continue;
}
if (child.Right > right)
{
right = child.Right;
}
if (child.Left < left)
{
left = child.Left;
}
if (child.Bottom > bottom)
{
bottom = child.Bottom;
}
if (child.Top < 0)
{
top = child.Top;
}
}
int available_width = ClientSize.Width;
int available_height = ClientSize.Height;
bool need_hbar = false;
bool need_vbar = false;
if (right - left > available_width || left < 0)
{
need_hbar = true;
available_height -= SystemInformation.HorizontalScrollBarHeight;
}
if (bottom - top > available_height || top < 0)
{
need_vbar = true;
available_width -= SystemInformation.VerticalScrollBarWidth;
if (!need_hbar && (right - left > available_width || left < 0))
{
need_hbar = true;
available_height -= SystemInformation.HorizontalScrollBarHeight;
}
}
if (need_hbar)
{
if (hbar == null)
{
hbar = new ImplicitHScrollBar();
Controls.AddImplicit(hbar);
}
hbar.Visible = true;
CalcHBar(left, right, need_vbar);
}
else if (hbar != null)
{
hbar.Visible = false;
}
if (need_vbar)
{
if (vbar == null)
{
vbar = new ImplicitVScrollBar();
Controls.AddImplicit(vbar);
}
vbar.Visible = true;
CalcVBar(top, bottom, need_hbar);
}
else if (vbar != null)
{
vbar.Visible = false;
}
if (need_hbar && need_vbar)
{
if (sizegrip == null)
{
sizegrip = new SizeGrip(this.ParentForm);
Controls.AddImplicit(sizegrip);
}
sizegrip.Location = new Point(hbar.Right, vbar.Bottom);
sizegrip.Visible = true;
XplatUI.SetZOrder(sizegrip.Handle, vbar.Handle, false, false);
}
else if (sizegrip != null)
{
sizegrip.Visible = false;
}
XplatUI.InvalidateNC(Handle);
}
private void CreateScrollbars ()
{
hscrollbar = new ImplicitHScrollBar ();
hscrollbar.Visible = false;
hscrollbar.ValueChanged += new EventHandler (HandleScrollBar);
hscrollbar.Height = SystemInformation.HorizontalScrollBarHeight;
hscrollbar.use_manual_thumb_size = true;
hscrollbar.Scroll += new ScrollEventHandler (HandleScrollEvent);
vscrollbar = new ImplicitVScrollBar ();
vscrollbar.Visible = false;
vscrollbar.ValueChanged += new EventHandler (HandleScrollBar);
vscrollbar.Width = SystemInformation.VerticalScrollBarWidth;
vscrollbar.use_manual_thumb_size = true;
vscrollbar.Scroll += new ScrollEventHandler (HandleScrollEvent);
sizegrip = new SizeGrip (this);
sizegrip.Visible = false;
}
public ListBox ()
{
items = CreateItemCollection ();
selected_indices = new SelectedIndexCollection (this);
selected_items = new SelectedObjectCollection (this);
requested_height = bounds.Height;
InternalBorderStyle = BorderStyle.Fixed3D;
BackColor = ThemeEngine.Current.ColorWindow;
/* Vertical scrollbar */
vscrollbar = new ImplicitVScrollBar ();
vscrollbar.Minimum = 0;
vscrollbar.SmallChange = 1;
vscrollbar.LargeChange = 1;
vscrollbar.Maximum = 0;
vscrollbar.ValueChanged += new EventHandler (VerticalScrollEvent);
vscrollbar.Visible = false;
/* Horizontal scrollbar */
hscrollbar = new ImplicitHScrollBar ();
hscrollbar.Minimum = 0;
hscrollbar.SmallChange = 1;
hscrollbar.LargeChange = 1;
hscrollbar.Maximum = 0;
hscrollbar.Visible = false;
hscrollbar.ValueChanged += new EventHandler (HorizontalScrollEvent);
Controls.AddImplicit (vscrollbar);
Controls.AddImplicit (hscrollbar);
/* Events */
MouseDown += new MouseEventHandler (OnMouseDownLB);
MouseMove += new MouseEventHandler (OnMouseMoveLB);
MouseUp += new MouseEventHandler (OnMouseUpLB);
MouseWheel += new MouseEventHandler (OnMouseWheelLB);
KeyUp += new KeyEventHandler (OnKeyUpLB);
GotFocus += new EventHandler (OnGotFocus);
LostFocus += new EventHandler (OnLostFocus);
SetStyle (ControlStyles.UserPaint, false);
#if NET_2_0
custom_tab_offsets = new IntegerCollection (this);
#endif
}
internal void SizeScrollBars ()
{
if (lock_sizing)
return;
if (!IsHandleCreated)
return;
if (Controls.Count == 0 || ((Form) Controls [0]).WindowState == FormWindowState.Maximized) {
if (hbar != null)
hbar.Visible = false;
if (vbar != null)
vbar.Visible = false;
if (sizegrip != null)
sizegrip.Visible = false;
return;
}
int right = 0;
int left = 0;
int top = 0;
int bottom = 0;
foreach (Form child in Controls) {
if (!child.Visible)
continue;
if (child.Right > right)
right = child.Right;
if (child.Left < left) {
left = child.Left;
}
if (child.Bottom > bottom)
bottom = child.Bottom;
if (child.Top < 0) {
top = child.Top;
}
}
int available_width = ClientSize.Width;
int available_height = ClientSize.Height;
bool need_hbar = false;
bool need_vbar = false;
if (right - left > available_width || left < 0) {
need_hbar = true;
available_height -= SystemInformation.HorizontalScrollBarHeight;
}
if (bottom - top > available_height || top < 0) {
need_vbar = true;
available_width -= SystemInformation.VerticalScrollBarWidth;
if (!need_hbar && (right - left > available_width || left < 0)) {
need_hbar = true;
available_height -= SystemInformation.HorizontalScrollBarHeight;
}
}
if (need_hbar) {
if (hbar == null) {
hbar = new ImplicitHScrollBar ();
Controls.AddImplicit (hbar);
}
hbar.Visible = true;
CalcHBar (left, right, need_vbar);
} else if (hbar != null)
hbar.Visible = false;
if (need_vbar) {
if (vbar == null) {
vbar = new ImplicitVScrollBar ();
Controls.AddImplicit (vbar);
}
vbar.Visible = true;
CalcVBar (top, bottom, need_hbar);
} else if (vbar != null)
vbar.Visible = false;
if (need_hbar && need_vbar) {
if (sizegrip == null) {
sizegrip = new SizeGrip (this.ParentForm);
Controls.AddImplicit (sizegrip);
}
sizegrip.Location = new Point (hbar.Right, vbar.Bottom);
sizegrip.Visible = true;
XplatUI.SetZOrder (sizegrip.Handle, vbar.Handle, false, false);
} else if (sizegrip != null) {
sizegrip.Visible = false;
}
XplatUI.InvalidateNC (Handle);
}