/////////////////////////////////////////////////////////////////////////////
-// Name: ctrlcmn.cpp
+// Name: src/common/ctrlcmn.cpp
// Purpose: wxControl common interface
// Author: Vadim Zeitlin
// Modified by:
// Created: 26.07.99
// RCS-ID: $Id$
-// Copyright: (c) wxWindows team
-// Licence: wxWindows license
+// Copyright: (c) wxWidgets team
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "ctrlcmn.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
+#if wxUSE_CONTROLS
+
+#include "wx/control.h"
+
#ifndef WX_PRECOMP
- #include "wx/control.h"
+ #include "wx/dc.h"
#include "wx/log.h"
+ #include "wx/radiobut.h"
+ #include "wx/statbmp.h"
+ #include "wx/bitmap.h"
+ #include "wx/utils.h" // for wxStripMenuCodes()
+ #include "wx/settings.h"
#endif
+const char wxControlNameStr[] = "control";
+
// ============================================================================
// implementation
// ============================================================================
+wxControlBase::~wxControlBase()
+{
+ // this destructor is required for Darwin
+}
+
+bool wxControlBase::Create(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint &pos,
+ const wxSize &size,
+ long style,
+ const wxValidator& wxVALIDATOR_PARAM(validator),
+ const wxString &name)
+{
+ bool ret = wxWindow::Create(parent, id, pos, size, style, name);
+
+#if wxUSE_VALIDATORS
+ if ( ret )
+ SetValidator(validator);
+#endif // wxUSE_VALIDATORS
+
+ return ret;
+}
+
bool wxControlBase::CreateControl(wxWindowBase *parent,
wxWindowID id,
const wxPoint& pos,
// even if it's possible to create controls without parents in some port,
// it should surely be discouraged because it doesn't work at all under
// Windows
- wxCHECK_MSG( parent, FALSE, wxT("all controls must have parents") );
+ wxCHECK_MSG( parent, false, wxT("all controls must have parents") );
if ( !CreateBase(parent, id, pos, size, style, validator, name) )
- return FALSE;
+ return false;
parent->AddChild(this);
- return TRUE;
+ return true;
}
-// inherit colour and font settings from the parent window
-void wxControlBase::InheritAttributes()
+/* static */
+wxString wxControlBase::GetLabelText(const wxString& label)
{
- SetBackgroundColour(GetParent()->GetBackgroundColour());
- SetForegroundColour(GetParent()->GetForegroundColour());
- SetFont(GetParent()->GetFont());
+ // we don't want strip the TABs here, just the mnemonics
+ return wxStripMenuCodes(label, wxStrip_Mnemonics);
}
void wxControlBase::Command(wxCommandEvent& event)
{
- (void)ProcessEvent(event);
+ (void)GetEventHandler()->ProcessEvent(event);
+}
+
+void wxControlBase::InitCommandEvent(wxCommandEvent& event) const
+{
+ event.SetEventObject((wxControlBase *)this); // const_cast
+
+ // event.SetId(GetId()); -- this is usuall done in the event ctor
+
+ switch ( m_clientDataType )
+ {
+ case wxClientData_Void:
+ event.SetClientData(GetClientData());
+ break;
+
+ case wxClientData_Object:
+ event.SetClientObject(GetClientObject());
+ break;
+
+ case wxClientData_None:
+ // nothing to do
+ ;
+ }
+}
+
+bool wxControlBase::SetFont(const wxFont& font)
+{
+ InvalidateBestSize();
+ return wxWindow::SetFont(font);
+}
+
+// wxControl-specific processing after processing the update event
+void wxControlBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
+{
+ // call inherited
+ wxWindowBase::DoUpdateWindowUI(event);
+
+ // update label
+ if ( event.GetSetText() )
+ {
+ if ( event.GetText() != GetLabel() )
+ SetLabel(event.GetText());
+ }
+
+ // Unfortunately we don't yet have common base class for
+ // wxRadioButton, so we handle updates of radiobuttons here.
+ // TODO: If once wxRadioButtonBase will exist, move this code there.
+#if wxUSE_RADIOBTN
+ if ( event.GetSetChecked() )
+ {
+ wxRadioButton *radiobtn = wxDynamicCastThis(wxRadioButton);
+ if ( radiobtn )
+ radiobtn->SetValue(event.GetChecked());
+ }
+#endif // wxUSE_RADIOBTN
+}
+
+/* static */
+wxString wxControlBase::RemoveMnemonics(const wxString& str)
+{
+ return wxStripMenuCodes(str, wxStrip_Mnemonics);
+}
+
+/* static */
+wxString wxControlBase::EscapeMnemonics(const wxString& text)
+{
+ wxString label(text);
+ label.Replace("&", "&&");
+ return label;
+}
+
+/* static */
+int wxControlBase::FindAccelIndex(const wxString& label, wxString *labelOnly)
+{
+ // the character following MNEMONIC_PREFIX is the accelerator for this
+ // control unless it is MNEMONIC_PREFIX too - this allows to insert
+ // literal MNEMONIC_PREFIX chars into the label
+ static const wxChar MNEMONIC_PREFIX = wxT('&');
+
+ if ( labelOnly )
+ {
+ labelOnly->Empty();
+ labelOnly->Alloc(label.length());
+ }
+
+ int indexAccel = -1;
+ for ( wxString::const_iterator pc = label.begin(); pc != label.end(); ++pc )
+ {
+ if ( *pc == MNEMONIC_PREFIX )
+ {
+ ++pc; // skip it
+ if ( pc == label.end() )
+ break;
+ else if ( *pc != MNEMONIC_PREFIX )
+ {
+ if ( indexAccel == -1 )
+ {
+ // remember it (-1 is for MNEMONIC_PREFIX itself
+ indexAccel = pc - label.begin() - 1;
+ }
+ else
+ {
+ wxFAIL_MSG(wxT("duplicate accel char in control label"));
+ }
+ }
+ }
+
+ if ( labelOnly )
+ {
+ *labelOnly += *pc;
+ }
+ }
+
+ return indexAccel;
+}
+
+wxBorder wxControlBase::GetDefaultBorder() const
+{
+ return wxBORDER_THEME;
+}
+
+/* static */ wxVisualAttributes
+wxControlBase::GetCompositeControlsDefaultAttributes(wxWindowVariant WXUNUSED(variant))
+{
+ wxVisualAttributes attrs;
+ attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
+ attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
+ attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
+
+ return attrs;
+}
+
+// ----------------------------------------------------------------------------
+// wxControlBase - ellipsization code
+// ----------------------------------------------------------------------------
+
+#define wxELLIPSE_REPLACEMENT wxT("...")
+
+/* static and protected */
+wxString wxControlBase::DoEllipsizeSingleLine(const wxString& curLine, const wxDC& dc,
+ wxEllipsizeMode mode, int maxFinalWidth,
+ int replacementWidth, int marginWidth)
+{
+ wxASSERT_MSG(replacementWidth > 0 && marginWidth > 0,
+ "Invalid parameters");
+ wxASSERT_MSG(!curLine.Contains('\n'),
+ "Use Ellipsize() instead!");
+
+ wxASSERT_MSG( mode != wxELLIPSIZE_NONE, "shouldn't be called at all then" );
+
+ // NOTE: this function assumes that any mnemonic/tab character has already
+ // been handled if it was necessary to handle them (see Ellipsize())
+
+ if (maxFinalWidth <= 0)
+ return wxEmptyString;
+
+ wxArrayInt charOffsets;
+ size_t len = curLine.length();
+ if (len == 0 ||
+ !dc.GetPartialTextExtents(curLine, charOffsets))
+ return curLine;
+
+ wxASSERT(charOffsets.GetCount() == len);
+
+ size_t totalWidth = charOffsets.Last();
+ if ( totalWidth <= (size_t)maxFinalWidth )
+ return curLine; // we don't need to do any ellipsization!
+
+ int excessPixels = totalWidth - maxFinalWidth +
+ replacementWidth +
+ marginWidth; // security margin (NEEDED!)
+ wxASSERT(excessPixels>0);
+
+ // remove characters in excess
+ size_t initialChar, // index of first char to erase
+ nChars; // how many chars do we need to erase?
+
+ switch (mode)
+ {
+ case wxELLIPSIZE_START:
+ initialChar = 0;
+ for ( nChars=0;
+ nChars < len && charOffsets[nChars] < excessPixels;
+ nChars++ )
+ ;
+ break;
+
+ case wxELLIPSIZE_MIDDLE:
+ {
+ // the start & end of the removed span of chars
+ initialChar = len/2;
+ size_t endChar = len/2;
+
+ int removed = 0;
+ for ( ; removed < excessPixels; )
+ {
+ if (initialChar > 0)
+ {
+ // width of the initialChar-th character
+ int width = charOffsets[initialChar] -
+ charOffsets[initialChar-1];
+
+ // remove the initialChar-th character
+ removed += width;
+ initialChar--;
+ }
+
+ if (endChar < len - 1 &&
+ removed < excessPixels)
+ {
+ // width of the (endChar+1)-th character
+ int width = charOffsets[endChar+1] -
+ charOffsets[endChar];
+
+ // remove the endChar-th character
+ removed += width;
+ endChar++;
+ }
+
+ if (initialChar == 0 && endChar == len-1)
+ {
+ nChars = len+1;
+ break;
+ }
+ }
+
+ initialChar++;
+ nChars = endChar - initialChar + 1;
+ }
+ break;
+
+ case wxELLIPSIZE_END:
+ {
+ wxASSERT(len > 0);
+
+ int maxWidth = totalWidth - excessPixels;
+ for ( initialChar = 0;
+ initialChar < len && charOffsets[initialChar] < maxWidth;
+ initialChar++ )
+ ;
+
+ if (initialChar == 0)
+ {
+ nChars = len;
+ }
+ else
+ {
+ //initialChar--; // go back one character
+ nChars = len - initialChar;
+ }
+ }
+ break;
+
+ case wxELLIPSIZE_NONE:
+ default:
+ wxFAIL_MSG("invalid ellipsize mode");
+ return curLine;
+ }
+
+ wxString ret(curLine);
+ if (nChars >= len)
+ {
+ // need to remove the entire row!
+ ret.clear();
+ }
+ else
+ {
+ // erase nChars characters after initialChar (included):
+ ret.erase(initialChar, nChars+1);
+
+ // if there is space for the replacement dots, add them
+ if (maxFinalWidth > replacementWidth)
+ ret.insert(initialChar, wxELLIPSE_REPLACEMENT);
+ }
+
+ // if everything was ok, we should have shortened this line
+ // enough to make it fit in maxFinalWidth:
+ wxASSERT(dc.GetTextExtent(ret).GetWidth() < maxFinalWidth);
+
+ return ret;
+}
+
+/* static */
+wxString wxControlBase::Ellipsize(const wxString& label, const wxDC& dc,
+ wxEllipsizeMode mode, int maxFinalWidth,
+ int flags)
+{
+ wxString ret;
+
+ // these cannot be cached between different Ellipsize() calls as they can
+ // change because of e.g. a font change; however we calculate them only once
+ // when ellipsizing multiline labels:
+ int replacementWidth = dc.GetTextExtent(wxELLIPSE_REPLACEMENT).GetWidth();
+ int marginWidth = dc.GetCharWidth();
+
+ // NB: we must handle correctly labels with newlines:
+ wxString curLine;
+ for ( wxString::const_iterator pc = label.begin(); ; ++pc )
+ {
+ if ( pc == label.end() || *pc == wxS('\n') )
+ {
+ curLine = DoEllipsizeSingleLine(curLine, dc, mode, maxFinalWidth,
+ replacementWidth, marginWidth);
+
+ // add this (ellipsized) row to the rest of the label
+ ret << curLine;
+ if ( pc == label.end() )
+ {
+ // NOTE: this is the return which always exits the function
+ return ret;
+ }
+ else
+ {
+ ret << *pc;
+ curLine.clear();
+ }
+ }
+ // we need to remove mnemonics from the label for correct calculations
+ else if ( *pc == wxS('&') && (flags & wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS) )
+ {
+ // pc+1 is safe: at worst we'll be at end()
+ wxString::const_iterator next = pc + 1;
+ if ( next != label.end() && *next == wxS('&') )
+ curLine += wxS('&'); // && becomes &
+ //else: remove this ampersand
+ }
+ // we need also to expand tabs to properly calc their size
+ else if ( *pc == wxS('\t') && (flags & wxELLIPSIZE_FLAGS_EXPAND_TABS) )
+ {
+ // Windows natively expands the TABs to 6 spaces. Do the same:
+ curLine += wxS(" ");
+ }
+ else
+ {
+ curLine += *pc;
+ }
+ }
+
+ // this return would generate a
+ // warning C4702: unreachable code
+ // with MSVC since the function always exits from inside the loop
+ //return ret;
}
+
+
+
+// ----------------------------------------------------------------------------
+// wxStaticBitmap
+// ----------------------------------------------------------------------------
+
+#if wxUSE_STATBMP
+
+wxStaticBitmapBase::~wxStaticBitmapBase()
+{
+ // this destructor is required for Darwin
+}
+
+wxSize wxStaticBitmapBase::DoGetBestSize() const
+{
+ wxSize best;
+ wxBitmap bmp = GetBitmap();
+ if ( bmp.Ok() )
+ best = wxSize(bmp.GetWidth(), bmp.GetHeight());
+ else
+ // this is completely arbitrary
+ best = wxSize(16, 16);
+ CacheBestSize(best);
+ return best;
+}
+
+#endif // wxUSE_STATBMP
+
+#endif // wxUSE_CONTROLS
projects / wxWidgets.git / blobdiff