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0a241d2dfcdf59ed7c2dad522906fc1bceaa04fe
wxWidgets/src/stc/ScintillaWX.cpp
Maarten Bent 5e6000a1ee Simplify maximum width of wxSTC auto-complete listbox
2021-03-11 22:31:03 +01:00

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////////////////////////////////////////////////////////////////////////////
// Name: src/stc/ScintillaWX.cpp
// Purpose: A wxWidgets implementation of Scintilla. A class derived
// from ScintillaBase that uses the "wx platform" defined in
// PlatformWX.cxx This class is one end of a bridge between
// the wx world and the Scintilla world. It needs a peer
// object of type wxStyledTextCtrl to function.
//
// Author: Robin Dunn
//
// Created: 13-Jan-2000
// Copyright: (c) 2000 by Total Control Software
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#if wxUSE_STC
#ifndef WX_PRECOMP
#include "wx/scrolbar.h"
#include "wx/math.h"
#include "wx/menu.h"
#include "wx/timer.h"
#endif // WX_PRECOMP
#include "wx/textbuf.h"
#include "wx/dataobj.h"
#include "wx/clipbrd.h"
#include "wx/dnd.h"
#include "wx/image.h"
#include "wx/scopedarray.h"
#include "wx/dcbuffer.h"
#if !wxUSE_STD_CONTAINERS && !wxUSE_STD_IOSTREAM && !wxUSE_STD_STRING
#include "wx/beforestd.h"
#include <string>
#include "wx/afterstd.h"
#endif
#include "ScintillaWX.h"
#include "ExternalLexer.h"
#include "UniConversion.h"
#include "wx/stc/stc.h"
#include "wx/stc/private.h"
#include "PlatWX.h"
#ifdef __WXMSW__
// GetHwndOf()
#include "wx/msw/private.h"
#endif
#ifdef __WXGTK20__
#include <gdk/gdk.h>
#endif
//----------------------------------------------------------------------
// Helper classes
class wxSTCTimer : public wxTimer {
public:
wxSTCTimer(ScintillaWX* swx, ScintillaWX::TickReason reason) {
m_swx = swx;
m_reason = reason;
}
void Notify() wxOVERRIDE {
m_swx->TickFor(m_reason);
}
private:
ScintillaWX* m_swx;
ScintillaWX::TickReason m_reason;
};
#if wxUSE_DRAG_AND_DROP
bool wxSTCDropTarget::OnDropText(wxCoord x, wxCoord y, const wxString& data) {
return m_swx->DoDropText(x, y, data);
}
wxDragResult wxSTCDropTarget::OnEnter(wxCoord x, wxCoord y, wxDragResult def) {
return m_swx->DoDragEnter(x, y, def);
}
wxDragResult wxSTCDropTarget::OnDragOver(wxCoord x, wxCoord y, wxDragResult def) {
return m_swx->DoDragOver(x, y, def);
}
void wxSTCDropTarget::OnLeave() {
m_swx->DoDragLeave();
}
#endif // wxUSE_DRAG_AND_DROP
class wxSTCCallTip : public wxSTCPopupWindow {
public:
wxSTCCallTip(wxWindow* parent, CallTip* ct, ScintillaWX* swx) :
wxSTCPopupWindow(parent), m_ct(ct), m_swx(swx)
{
Bind(wxEVT_LEFT_DOWN, &wxSTCCallTip::OnLeftDown, this);
Bind(wxEVT_SIZE, &wxSTCCallTip::OnSize, this);
Bind(wxEVT_PAINT, &wxSTCCallTip::OnPaint, this);
#ifdef __WXMSW__
Bind(wxEVT_ERASE_BACKGROUND, &wxSTCCallTip::OnEraseBackground, this);
SetBackgroundStyle(wxBG_STYLE_ERASE);
#else
SetBackgroundStyle(wxBG_STYLE_PAINT);
#endif
SetName("wxSTCCallTip");
}
void DrawBack(const wxSize& size)
{
m_back = wxBitmap(size);
wxMemoryDC mem(m_back);
Surface* surfaceWindow = Surface::Allocate(m_swx->technology);
surfaceWindow->Init(&mem, m_ct->wDraw.GetID());
m_ct->PaintCT(surfaceWindow);
surfaceWindow->Release();
delete surfaceWindow;
}
virtual void Refresh(bool eraseBg=true, const wxRect *rect=NULL) wxOVERRIDE
{
if ( rect == NULL )
DrawBack(GetSize());
wxSTCPopupWindow::Refresh(eraseBg, rect);
}
void OnLeftDown(wxMouseEvent& event)
{
wxPoint pt = event.GetPosition();
Point p(pt.x, pt.y);
m_ct->MouseClick(p);
m_swx->CallTipClick();
}
void OnSize(wxSizeEvent& event)
{
DrawBack(event.GetSize());
event.Skip();
}
#ifdef __WXMSW__
void OnPaint(wxPaintEvent& WXUNUSED(evt))
{
wxRect upd = GetUpdateClientRect();
wxMemoryDC mem(m_back);
wxPaintDC dc(this);
dc.Blit(upd.GetX(), upd.GetY(), upd.GetWidth(), upd.GetHeight(), &mem,
upd.GetX(), upd.GetY());
}
void OnEraseBackground(wxEraseEvent& event)
{
event.GetDC()->DrawBitmap(m_back, 0, 0);
}
#else
void OnPaint(wxPaintEvent& WXUNUSED(evt))
{
wxAutoBufferedPaintDC dc(this);
dc.DrawBitmap(m_back, 0, 0);
}
#endif // __WXMSW__
private:
CallTip* m_ct;
ScintillaWX* m_swx;
wxBitmap m_back;
};
//----------------------------------------------------------------------
#if wxUSE_DATAOBJ
static wxTextFileType wxConvertEOLMode(int scintillaMode)
{
wxTextFileType type;
switch (scintillaMode) {
case wxSTC_EOL_CRLF:
type = wxTextFileType_Dos;
break;
case wxSTC_EOL_CR:
type = wxTextFileType_Mac;
break;
case wxSTC_EOL_LF:
type = wxTextFileType_Unix;
break;
default:
type = wxTextBuffer::typeDefault;
break;
}
return type;
}
#endif // wxUSE_DATAOBJ
//----------------------------------------------------------------------
// Constructor/Destructor
ScintillaWX::ScintillaWX(wxStyledTextCtrl* win) {
capturedMouse = false;
focusEvent = false;
wMain = win;
stc = win;
wheelVRotation = 0;
wheelHRotation = 0;
Initialise();
#ifdef __WXMSW__
sysCaretBitmap = 0;
sysCaretWidth = 0;
sysCaretHeight = 0;
#endif
#ifdef wxHAVE_STC_RECT_FORMAT
#if defined(__WXMSW__)
m_clipRectTextFormat = wxDataFormat(wxT("MSDEVColumnSelect"));
#elif defined(__WXGTK__)
m_clipRectTextFormat = wxDataFormat(wxT("SECONDARY"));
#else
#error "Must define rectangular text selection clipboard format."
#endif
#endif // wxHAVE_STC_RECT_FORMAT
//A timer is needed for each member of TickReason enum except tickPlatform
timers[tickCaret] = new wxSTCTimer(this,tickCaret);
timers[tickScroll] = new wxSTCTimer(this,tickScroll);
timers[tickWiden] = new wxSTCTimer(this,tickWiden);
timers[tickDwell] = new wxSTCTimer(this,tickDwell);
m_surfaceData = NULL;
}
ScintillaWX::~ScintillaWX() {
for ( TimersHash::iterator i=timers.begin(); i!=timers.end(); ++i ) {
delete i->second;
}
timers.clear();
if ( m_surfaceData != NULL ) {
delete m_surfaceData;
}
Finalise();
}
//----------------------------------------------------------------------
// base class virtuals
void ScintillaWX::Initialise() {
//ScintillaBase::Initialise();
#if wxUSE_DRAG_AND_DROP
dropTarget = new wxSTCDropTarget;
dropTarget->SetScintilla(this);
stc->SetDropTarget(dropTarget);
#endif // wxUSE_DRAG_AND_DROP
vs.extraFontFlag = true; // UseAntiAliasing
// Set up default OS X key mappings. Remember that SCI_CTRL stands for
// "Cmd" key here, as elsewhere in wx API, while SCI_ALT is the "Option"
// key (and "Ctrl" key, if we ever need it, should be represented by
// SCI_META).
#ifdef __WXMAC__
kmap.AssignCmdKey(SCK_LEFT, SCI_CTRL, SCI_VCHOME);
kmap.AssignCmdKey(SCK_RIGHT, SCI_CTRL, SCI_LINEEND);
kmap.AssignCmdKey(SCK_LEFT, SCI_ALT, SCI_WORDLEFT);
kmap.AssignCmdKey(SCK_RIGHT, SCI_ALT, SCI_WORDRIGHT);
kmap.AssignCmdKey(SCK_LEFT, SCI_ALT | SCI_SHIFT, SCI_WORDLEFTEXTEND);
kmap.AssignCmdKey(SCK_RIGHT, SCI_ALT | SCI_SHIFT, SCI_WORDRIGHTEXTEND);
kmap.AssignCmdKey(SCK_LEFT, SCI_CTRL | SCI_SHIFT, SCI_VCHOMEEXTEND);
kmap.AssignCmdKey(SCK_RIGHT, SCI_CTRL | SCI_SHIFT, SCI_LINEENDEXTEND);
kmap.AssignCmdKey(SCK_UP, SCI_CTRL | SCI_SHIFT, SCI_DOCUMENTSTARTEXTEND);
kmap.AssignCmdKey(SCK_DOWN, SCI_CTRL | SCI_SHIFT, SCI_DOCUMENTENDEXTEND);
kmap.AssignCmdKey(SCK_UP, SCI_CTRL, SCI_DOCUMENTSTART);
kmap.AssignCmdKey(SCK_DOWN, SCI_CTRL, SCI_DOCUMENTEND);
#endif // __WXMAC__
ListBoxImpl* autoCompleteLB = static_cast<ListBoxImpl*>( ac.lb );
autoCompleteLB->SetListInfo( &listType, &(ac.posStart), &(ac.startLen) );
}
void ScintillaWX::Finalise() {
ScintillaBase::Finalise();
SetIdle(false);
DestroySystemCaret();
}
void ScintillaWX::StartDrag() {
#if wxUSE_DRAG_AND_DROP
wxString dragText = stc2wx(drag.Data(), drag.Length());
// Send an event to allow the drag text to be changed
wxStyledTextEvent evt(wxEVT_STC_START_DRAG, stc->GetId());
evt.SetEventObject(stc);
evt.SetString(dragText);
evt.SetDragFlags(wxDrag_DefaultMove);
evt.SetPosition(wxMin(stc->GetSelectionStart(),
stc->GetSelectionEnd()));
stc->GetEventHandler()->ProcessEvent(evt);
dragText = evt.GetString();
if ( !dragText.empty() ) {
wxDropSource source(stc);
wxTextDataObject data(dragText);
wxDragResult result;
source.SetData(data);
dropWentOutside = true;
inDragDrop = ddDragging;
result = source.DoDragDrop(evt.GetDragFlags());
if (result == wxDragMove && dropWentOutside)
ClearSelection();
inDragDrop = ddNone;
SetDragPosition(SelectionPosition(invalidPosition));
}
#endif // wxUSE_DRAG_AND_DROP
}
bool ScintillaWX::SetIdle(bool on) {
if (idler.state != on) {
// connect or disconnect the EVT_IDLE handler
if (on)
stc->Bind(wxEVT_IDLE, &wxStyledTextCtrl::OnIdle, stc);
else
stc->Unbind(wxEVT_IDLE, &wxStyledTextCtrl::OnIdle, stc);
idler.state = on;
}
return idler.state;
}
void ScintillaWX::SetMouseCapture(bool on) {
if (mouseDownCaptures) {
if (on && !capturedMouse)
stc->CaptureMouse();
else if (!on && capturedMouse && stc->HasCapture())
stc->ReleaseMouse();
capturedMouse = on;
}
}
bool ScintillaWX::HaveMouseCapture() {
return capturedMouse;
}
void ScintillaWX::ScrollText(int linesToMove) {
int dy = vs.lineHeight * (linesToMove);
stc->ScrollWindow(0, dy);
}
void ScintillaWX::SetVerticalScrollPos() {
if (stc->m_vScrollBar == NULL) { // Use built-in scrollbar
stc->SetScrollPos(wxVERTICAL, topLine);
}
else { // otherwise use the one that's been given to us
stc->m_vScrollBar->SetThumbPosition(topLine);
}
}
void ScintillaWX::SetHorizontalScrollPos() {
if (stc->m_hScrollBar == NULL) { // Use built-in scrollbar
stc->SetScrollPos(wxHORIZONTAL, xOffset);
}
else { // otherwise use the one that's been given to us
stc->m_hScrollBar->SetThumbPosition(xOffset);
}
}
const int H_SCROLL_STEP = 20;
bool ScintillaWX::ModifyScrollBars(int nMax, int nPage) {
bool modified = false;
int vertEnd = nMax+1;
if (!verticalScrollBarVisible)
nPage = vertEnd + 1;
// Check the vertical scrollbar
if (stc->m_vScrollBar == NULL) { // Use built-in scrollbar
int sbMax = stc->GetScrollRange(wxVERTICAL);
int sbThumb = stc->GetScrollThumb(wxVERTICAL);
int sbPos = stc->GetScrollPos(wxVERTICAL);
if (sbMax != vertEnd || sbThumb != nPage) {
stc->SetScrollbar(wxVERTICAL, sbPos, nPage, vertEnd);
modified = true;
}
}
else { // otherwise use the one that's been given to us
int sbMax = stc->m_vScrollBar->GetRange();
int sbPage = stc->m_vScrollBar->GetPageSize();
int sbPos = stc->m_vScrollBar->GetThumbPosition();
if (sbMax != vertEnd || sbPage != nPage) {
stc->m_vScrollBar->SetScrollbar(sbPos, nPage, vertEnd, nPage);
modified = true;
}
}
// Check the horizontal scrollbar
PRectangle rcText = GetTextRectangle();
int horizEnd = scrollWidth;
if (horizEnd < 0)
horizEnd = 0;
int pageWidth = static_cast<int>(rcText.Width());
if (!horizontalScrollBarVisible || Wrapping())
pageWidth = horizEnd + 1;
if (stc->m_hScrollBar == NULL) { // Use built-in scrollbar
int sbMax = stc->GetScrollRange(wxHORIZONTAL);
int sbThumb = stc->GetScrollThumb(wxHORIZONTAL);
int sbPos = stc->GetScrollPos(wxHORIZONTAL);
if ((sbMax != horizEnd) || (sbThumb != pageWidth)) {
stc->SetScrollbar(wxHORIZONTAL, sbPos, pageWidth, horizEnd);
modified = true;
if (scrollWidth < pageWidth) {
HorizontalScrollTo(0);
}
}
}
else { // otherwise use the one that's been given to us
int sbMax = stc->m_hScrollBar->GetRange();
int sbThumb = stc->m_hScrollBar->GetPageSize();
int sbPos = stc->m_hScrollBar->GetThumbPosition();
if ((sbMax != horizEnd) || (sbThumb != pageWidth)) {
stc->m_hScrollBar->SetScrollbar(sbPos, pageWidth, horizEnd, pageWidth);
modified = true;
if (scrollWidth < pageWidth) {
HorizontalScrollTo(0);
}
}
}
return modified;
}
void ScintillaWX::NotifyChange() {
stc->NotifyChange();
}
void ScintillaWX::NotifyParent(SCNotification scn) {
stc->NotifyParent(&scn);
}
// This method is overloaded from ScintillaBase in order to prevent the
// AutoComplete window from being destroyed when it gets the focus. There is
// a side effect that the AutoComp will also not be destroyed when switching
// to another window, but I think that is okay.
void ScintillaWX::CancelModes() {
if (! focusEvent) {
AutoCompleteCancel();
ct.CallTipCancel();
}
Editor::CancelModes();
}
void ScintillaWX::Copy() {
if (!sel.Empty()) {
SelectionText st;
CopySelectionRange(&st);
CopyToClipboard(st);
}
}
void ScintillaWX::Paste() {
pdoc->BeginUndoAction();
ClearSelection(multiPasteMode == SC_MULTIPASTE_EACH);
#if wxUSE_CLIPBOARD
wxTextDataObject data;
bool gotData = false;
bool isRectangularClipboard = false;
wxTheClipboard->UsePrimarySelection(false);
if (wxTheClipboard->Open()) {
#ifdef wxHAVE_STC_RECT_FORMAT
isRectangularClipboard = wxTheClipboard->IsSupported(m_clipRectTextFormat);
#endif
gotData = wxTheClipboard->GetData(data);
wxTheClipboard->Close();
}
if (gotData) {
wxString text = wxTextBuffer::Translate(data.GetText(),
wxConvertEOLMode(pdoc->eolMode));
// Send an event to allow the pasted text to be changed
wxStyledTextEvent evt(wxEVT_STC_CLIPBOARD_PASTE, stc->GetId());
evt.SetEventObject(stc);
evt.SetPosition(sel.MainCaret());
evt.SetString(text);
stc->GetEventHandler()->ProcessEvent(evt);
const wxCharBuffer buf(wx2stc(evt.GetString()));
#if wxUSE_UNICODE
// free up the old character buffer in case the text is real big
text.clear();
data.SetText(text);
#endif
const size_t len = buf.length();
SelectionPosition selStart = sel.IsRectangular() ?
sel.Rectangular().Start() :
sel.Range(sel.Main()).Start();
// call the appropriate scintilla paste method if the
// depending on whether the text was copied FROM a rectangular selection
// or not.
if (isRectangularClipboard)
{
PasteRectangular(selStart, buf, len);
}
else
{
InsertPaste(buf, len);
}
}
#endif // wxUSE_CLIPBOARD
pdoc->EndUndoAction();
NotifyChange();
Redraw();
}
void ScintillaWX::CopyToClipboard(const SelectionText& st) {
#if wxUSE_CLIPBOARD
if ( !st.LengthWithTerminator() )
return;
// Send an event to allow the copied text to be changed
wxStyledTextEvent evt(wxEVT_STC_CLIPBOARD_COPY, stc->GetId());
evt.SetEventObject(stc);
evt.SetString(wxTextBuffer::Translate(stc2wx(st.Data(), st.Length())));
stc->GetEventHandler()->ProcessEvent(evt);
wxTheClipboard->UsePrimarySelection(false);
if (wxTheClipboard->Open()) {
wxString text = evt.GetString();
#ifdef wxHAVE_STC_RECT_FORMAT
if (st.rectangular)
{
// when copying the text to the clipboard, add extra meta-data that
// tells the Paste() method that the user copied a rectangular
// block of text, as opposed to a stream of text.
wxDataObjectComposite* composite = new wxDataObjectComposite();
composite->Add(new wxTextDataObject(text), true);
composite->Add(new wxCustomDataObject(m_clipRectTextFormat));
wxTheClipboard->SetData(composite);
}
else
#endif // wxHAVE_STC_RECT_FORMAT
wxTheClipboard->SetData(new wxTextDataObject(text));
wxTheClipboard->Close();
}
#else
wxUnusedVar(st);
#endif // wxUSE_CLIPBOARD
}
bool ScintillaWX::CanPaste() {
#if wxUSE_CLIPBOARD
bool canPaste = false;
bool didOpen;
if (Editor::CanPaste()) {
wxTheClipboard->UsePrimarySelection(false);
didOpen = !wxTheClipboard->IsOpened();
if ( didOpen )
wxTheClipboard->Open();
if (wxTheClipboard->IsOpened()) {
canPaste = wxTheClipboard->IsSupported(wxUSE_UNICODE ? wxDF_UNICODETEXT : wxDF_TEXT);
if (didOpen)
wxTheClipboard->Close();
}
}
return canPaste;
#else
return false;
#endif // wxUSE_CLIPBOARD
}
void ScintillaWX::CreateCallTipWindow(PRectangle) {
if (! ct.wCallTip.Created() ) {
ct.wCallTip = new wxSTCCallTip(stc, &ct, this);
ct.wDraw = ct.wCallTip.GetID();
}
}
void ScintillaWX::AddToPopUp(const char *label, int cmd, bool enabled) {
if (!label[0])
((wxMenu*)popup.GetID())->AppendSeparator();
else
((wxMenu*)popup.GetID())->Append(cmd, wxGetTranslation(stc2wx(label)));
if (!enabled)
((wxMenu*)popup.GetID())->Enable(cmd, enabled);
}
// This is called by the Editor base class whenever something is selected.
// For wxGTK we can put this text in the primary selection and then other apps
// can paste with the middle button.
void ScintillaWX::ClaimSelection() {
#ifdef __WXGTK__
#if wxUSE_CLIPBOARD
// Put the selected text in the PRIMARY selection
if (!sel.Empty()) {
SelectionText st;
CopySelectionRange(&st);
wxTheClipboard->UsePrimarySelection(true);
if (wxTheClipboard->Open()) {
wxString text = stc2wx(st.Data(), st.Length());
wxTheClipboard->SetData(new wxTextDataObject(text));
wxTheClipboard->Close();
}
wxTheClipboard->UsePrimarySelection(false);
}
#endif // wxUSE_CLIPBOARD
#endif
}
void ScintillaWX::UpdateSystemCaret() {
#ifdef __WXMSW__
if (hasFocus) {
if (HasCaretSizeChanged()) {
DestroySystemCaret();
CreateSystemCaret();
}
Point pos = PointMainCaret();
::SetCaretPos(wxRound(pos.x), wxRound(pos.y));
}
#endif
}
bool ScintillaWX::HasCaretSizeChanged() {
#ifdef __WXMSW__
if ( (vs.caretWidth && (sysCaretWidth != vs.caretWidth))
|| (vs.lineHeight && (sysCaretHeight != vs.lineHeight)) ) {
return true;
}
#endif
return false;
}
bool ScintillaWX::CreateSystemCaret() {
#ifdef __WXMSW__
sysCaretWidth = vs.caretWidth;
if (0 == sysCaretWidth) {
sysCaretWidth = 1;
}
sysCaretHeight = vs.lineHeight;
int bitmapSize = (((sysCaretWidth + 15) & ~15) >> 3) * sysCaretHeight;
char *bits = new char[bitmapSize];
memset(bits, 0, bitmapSize);
sysCaretBitmap = ::CreateBitmap(sysCaretWidth, sysCaretHeight, 1,
1, reinterpret_cast<BYTE *>(bits));
delete [] bits;
BOOL retval = ::CreateCaret(GetHwndOf(stc), sysCaretBitmap,
sysCaretWidth, sysCaretHeight);
::ShowCaret(GetHwndOf(stc));
return retval != 0;
#else
return false;
#endif
}
bool ScintillaWX::DestroySystemCaret() {
#ifdef __WXMSW__
if (sysCaretBitmap)
{
::HideCaret(GetHwndOf(stc));
BOOL retval = ::DestroyCaret();
if (sysCaretBitmap) {
::DeleteObject(sysCaretBitmap);
sysCaretBitmap = 0;
}
return retval != 0;
}
else
return false;
#else
return false;
#endif
}
bool ScintillaWX::FineTickerAvailable() {
return true;
}
bool ScintillaWX::FineTickerRunning(TickReason reason) {
bool running = false;
TimersHash::iterator i = timers.find(reason);
wxASSERT_MSG( i != timers.end(), "At least one TickReason is missing a timer.");
if ( i != timers.end() ) {
running = i->second->IsRunning();
}
return running;
}
void ScintillaWX::FineTickerStart(TickReason reason, int millis,
int WXUNUSED(tolerance)) {
TimersHash::iterator i = timers.find(reason);
wxASSERT_MSG( i != timers.end(), "At least one TickReason is missing a timer." );
if ( i != timers.end() ) {
i->second->Start(millis);
}
}
void ScintillaWX::FineTickerCancel(TickReason reason) {
TimersHash::iterator i = timers.find(reason);
wxASSERT_MSG( i != timers.end(), "At least one TickReason is missing a timer." );
if ( i != timers.end() ) {
i->second->Stop();
}
}
//----------------------------------------------------------------------
sptr_t ScintillaWX::DefWndProc(unsigned int /*iMessage*/, uptr_t /*wParam*/, sptr_t /*lParam*/) {
return 0;
}
sptr_t ScintillaWX::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
switch (iMessage) {
#if 0 // TODO: check this
case SCI_CALLTIPSHOW: {
// NOTE: This is copied here from scintilla/src/ScintillaBase.cxx
// because of the little tweak that needs done below for wxGTK.
// When updating new versions double check that this is still
// needed, and that any new code there is copied here too.
Point pt = LocationFromPosition(wParam);
char* defn = reinterpret_cast<char *>(lParam);
AutoCompleteCancel();
pt.y += vs.lineHeight;
int ctStyle = ct.UseStyleCallTip() ? STYLE_CALLTIP : STYLE_DEFAULT;
if (ct.UseStyleCallTip())
{
ct.SetForeBack(vs.styles[STYLE_CALLTIP].fore, vs.styles[STYLE_CALLTIP].back);
}
int caretMain = sel.MainCaret();
PRectangle rc = ct.CallTipStart(caretMain, pt,
defn,
vs.styles[ctStyle].fontName,
vs.styles[ctStyle].sizeZoomed,
CodePage(),
vs.styles[ctStyle].characterSet,
wMain);
// If the call-tip window would be out of the client
// space, adjust so it displays above the text.
PRectangle rcClient = GetClientRectangle();
if (rc.bottom > rcClient.bottom) {
#ifdef __WXGTK__
int offset = int(vs.lineHeight * 1.25) + rc.Height();
#else
int offset = vs.lineHeight + rc.Height();
#endif
rc.top -= offset;
rc.bottom -= offset;
}
// Now display the window.
CreateCallTipWindow(rc);
ct.wCallTip.SetPositionRelative(rc, wMain);
ct.wCallTip.Show();
break;
}
#endif
#if defined(__WXMSW__) && wxUSE_GRAPHICS_DIRECT2D
case SCI_SETTECHNOLOGY:
if ((wParam == SC_TECHNOLOGY_DEFAULT) || (wParam == SC_TECHNOLOGY_DIRECTWRITE)) {
if (technology != static_cast<int>(wParam)) {
SurfaceDataD2D* newSurfaceData(NULL);
if (static_cast<int>(wParam) > SC_TECHNOLOGY_DEFAULT) {
newSurfaceData = new SurfaceDataD2D(this);
if (!newSurfaceData->Initialised()) {
// Failed to load Direct2D or DirectWrite so no effect
delete newSurfaceData;
return 0;
}
}
technology = static_cast<int>(wParam);
if ( m_surfaceData ) {
delete m_surfaceData;
}
m_surfaceData = newSurfaceData;
// Invalidate all cached information including layout.
DropGraphics(true);
InvalidateStyleRedraw();
}
}
break;
#endif
#ifdef SCI_LEXER
case SCI_LOADLEXERLIBRARY:
LexerManager::GetInstance()->Load((const char*)lParam);
break;
#endif
case SCI_GETDIRECTFUNCTION:
return reinterpret_cast<sptr_t>(DirectFunction);
case SCI_GETDIRECTPOINTER:
return reinterpret_cast<sptr_t>(this);
#ifdef __WXMSW__
// ScintillaWin
case WM_IME_STARTCOMPOSITION:
// Always use windowed IME in ScintillaWX for now. Inline IME not implemented yet
ImeStartComposition();
return stc->wxControl::MSWWindowProc(iMessage, wParam, lParam);
case WM_IME_ENDCOMPOSITION:
ImeEndComposition();
return stc->wxControl::MSWWindowProc(iMessage, wParam, lParam);
case WM_IME_KEYDOWN:
case WM_IME_REQUEST:
case WM_IME_COMPOSITION:
case WM_IME_SETCONTEXT:
// These events are forwarded here for future inline IME implementation
return stc->wxControl::MSWWindowProc(iMessage, wParam, lParam);
#endif
default:
return ScintillaBase::WndProc(iMessage, wParam, lParam);
}
return 0;
}
//----------------------------------------------------------------------
// Event delegates
void ScintillaWX::DoPaint(wxDC* dc, wxRect rect) {
paintState = painting;
AutoSurface surfaceWindow(dc, this);
if (surfaceWindow) {
rcPaint = PRectangleFromwxRect(rect);
PRectangle rcClient = GetClientRectangle();
paintingAllText = rcPaint.Contains(rcClient);
ClipChildren(*dc, rcPaint);
Paint(surfaceWindow, rcPaint);
surfaceWindow->Release();
}
if (paintState == paintAbandoned) {
// Painting area was insufficient to cover new styling or brace
// highlight positions. So trigger a new paint event that will
// repaint the whole window.
stc->Refresh(false);
#if wxALWAYS_NATIVE_DOUBLE_BUFFER
// On systems using double buffering, we also need to finish the
// current paint to make sure that everything is on the screen that
// needs to be there between now and when the next paint event arrives.
FullPaintDC(dc);
#endif
}
paintState = notPainting;
}
// Force the whole window to be repainted
void ScintillaWX::FullPaint() {
stc->Refresh(false);
stc->Update();
}
void ScintillaWX::FullPaintDC(wxDC* dc) {
paintState = painting;
rcPaint = GetClientRectangle();
paintingAllText = true;
AutoSurface surfaceWindow(dc, this);
if (surfaceWindow) {
Paint(surfaceWindow, rcPaint);
surfaceWindow->Release();
}
paintState = notPainting;
}
void ScintillaWX::DoHScroll(int type, int pos) {
int xPos = xOffset;
PRectangle rcText = GetTextRectangle();
int pageWidth = wxRound(rcText.Width() * 2 / 3);
if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
xPos -= H_SCROLL_STEP;
else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
xPos += H_SCROLL_STEP;
else if (type == wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
xPos -= pageWidth;
else if (type == wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN) {
xPos += pageWidth;
if (xPos > scrollWidth - rcText.Width()) {
xPos = wxRound(scrollWidth - rcText.Width());
}
}
else if (type == wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
xPos = 0;
else if (type == wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
xPos = scrollWidth;
else if (type == wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
xPos = pos;
HorizontalScrollTo(xPos);
}
void ScintillaWX::DoVScroll(int type, int pos) {
int topLineNew = topLine;
if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
topLineNew -= 1;
else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
topLineNew += 1;
else if (type == wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
topLineNew -= LinesToScroll();
else if (type == wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN)
topLineNew += LinesToScroll();
else if (type == wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
topLineNew = 0;
else if (type == wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
topLineNew = MaxScrollPos();
else if (type == wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
topLineNew = pos;
ScrollTo(topLineNew);
}
void ScintillaWX::DoMouseWheel(wxMouseWheelAxis axis, int rotation, int delta,
int linesPerAction, int columnsPerAction,
bool ctrlDown, bool isPageScroll) {
int topLineNew = topLine;
int lines;
int xPos = xOffset;
int pixels;
if (axis == wxMOUSE_WHEEL_HORIZONTAL) {
wheelHRotation += wxRound(rotation * (columnsPerAction * vs.spaceWidth));
pixels = wheelHRotation / delta;
wheelHRotation -= pixels * delta;
if (pixels != 0) {
xPos += pixels;
PRectangle rcText = GetTextRectangle();
if (xPos > scrollWidth - rcText.Width()) {
xPos = wxRound(scrollWidth - rcText.Width());
}
HorizontalScrollTo(xPos);
}
}
else if (ctrlDown) { // Zoom the fonts if Ctrl key down
if (rotation > 0) {
KeyCommand(SCI_ZOOMIN);
}
else {
KeyCommand(SCI_ZOOMOUT);
}
}
else { // otherwise just scroll the window
if ( !delta )
delta = 120;
wheelVRotation += rotation;
lines = wheelVRotation / delta;
wheelVRotation -= lines * delta;
if (lines != 0) {
if (isPageScroll)
lines = lines * LinesOnScreen(); // lines is either +1 or -1
else
lines *= linesPerAction;
topLineNew -= lines;
ScrollTo(topLineNew);
}
}
}
void ScintillaWX::DoSize(int WXUNUSED(width), int WXUNUSED(height)) {
ChangeSize();
}
void ScintillaWX::DoLoseFocus(){
focusEvent = true;
SetFocusState(false);
focusEvent = false;
DestroySystemCaret();
}
void ScintillaWX::DoGainFocus(){
focusEvent = true;
SetFocusState(true);
focusEvent = false;
DestroySystemCaret();
CreateSystemCaret();
}
void ScintillaWX::DoInvalidateStyleData() {
InvalidateStyleData();
}
void ScintillaWX::DoLeftButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt) {
ButtonDown(pt, curTime, shift, ctrl, alt);
}
void ScintillaWX::DoRightButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt) {
if (!PointInSelection(pt)) {
CancelModes();
SetEmptySelection(PositionFromLocation(pt));
}
RightButtonDownWithModifiers(pt, curTime, ModifierFlags(shift, ctrl, alt));
}
void ScintillaWX::DoLeftButtonUp(Point pt, unsigned int curTime, bool ctrl) {
ButtonUp(pt, curTime, ctrl);
}
void ScintillaWX::DoLeftButtonMove(Point pt) {
ButtonMove(pt);
}
#ifdef __WXGTK__
void ScintillaWX::DoMiddleButtonUp(Point pt) {
// Set the current position to the mouse click point and
// then paste in the PRIMARY selection, if any. wxGTK only.
int newPos = PositionFromLocation(pt);
MovePositionTo(newPos, Selection::noSel, true);
#if wxUSE_CLIPBOARD
pdoc->BeginUndoAction();
wxTextDataObject data;
bool gotData = false;
wxTheClipboard->UsePrimarySelection(true);
if (wxTheClipboard->Open()) {
gotData = wxTheClipboard->GetData(data);
wxTheClipboard->Close();
}
wxTheClipboard->UsePrimarySelection(false);
if (gotData) {
wxString text = wxTextBuffer::Translate(data.GetText(),
wxConvertEOLMode(pdoc->eolMode));
const wxCharBuffer buf(wx2stc(text));
const size_t len = buf.length();
int caretMain = sel.MainCaret();
pdoc->InsertString(caretMain, buf, len);
SetEmptySelection(caretMain + len);
}
pdoc->EndUndoAction();
NotifyChange();
Redraw();
#endif // wxUSE_CLIPBOARD
ShowCaretAtCurrentPosition();
EnsureCaretVisible();
}
#else
void ScintillaWX::DoMiddleButtonUp(Point WXUNUSED(pt)) {
}
#endif
void ScintillaWX::DoAddChar(int key) {
#if wxUSE_UNICODE
wxChar wszChars[2];
wszChars[0] = (wxChar)key;
wszChars[1] = 0;
const wxCharBuffer buf(wx2stc(wszChars));
AddCharUTF(buf, buf.length());
#else
AddChar((char)key);
#endif
}
int ScintillaWX::DoKeyDown(const wxKeyEvent& evt, bool* consumed)
{
int key = evt.GetKeyCode();
if (evt.RawControlDown() && key >= 1 && key <= 26 && key != WXK_BACK)
key += 'A' - 1;
switch (key) {
case WXK_DOWN: key = SCK_DOWN; break;
case WXK_UP: key = SCK_UP; break;
case WXK_LEFT: key = SCK_LEFT; break;
case WXK_RIGHT: key = SCK_RIGHT; break;
case WXK_HOME: key = SCK_HOME; break;
case WXK_END: key = SCK_END; break;
case WXK_PAGEUP: key = SCK_PRIOR; break;
case WXK_PAGEDOWN: key = SCK_NEXT; break;
case WXK_NUMPAD_DOWN: key = SCK_DOWN; break;
case WXK_NUMPAD_UP: key = SCK_UP; break;
case WXK_NUMPAD_LEFT: key = SCK_LEFT; break;
case WXK_NUMPAD_RIGHT: key = SCK_RIGHT; break;
case WXK_NUMPAD_HOME: key = SCK_HOME; break;
case WXK_NUMPAD_END: key = SCK_END; break;
case WXK_NUMPAD_PAGEUP: key = SCK_PRIOR; break;
case WXK_NUMPAD_PAGEDOWN: key = SCK_NEXT; break;
case WXK_NUMPAD_DELETE: key = SCK_DELETE; break;
case WXK_NUMPAD_INSERT: key = SCK_INSERT; break;
case WXK_DELETE: key = SCK_DELETE; break;
case WXK_INSERT: key = SCK_INSERT; break;
case WXK_ESCAPE: key = SCK_ESCAPE; break;
case WXK_BACK: key = SCK_BACK; break;
case WXK_TAB: key = SCK_TAB; break;
case WXK_NUMPAD_ENTER: wxFALLTHROUGH;
case WXK_RETURN: key = SCK_RETURN; break;
case WXK_ADD: wxFALLTHROUGH;
case WXK_NUMPAD_ADD: key = SCK_ADD; break;
case WXK_SUBTRACT: wxFALLTHROUGH;
case WXK_NUMPAD_SUBTRACT: key = SCK_SUBTRACT; break;
case WXK_DIVIDE: wxFALLTHROUGH;
case WXK_NUMPAD_DIVIDE: key = SCK_DIVIDE; break;
case WXK_CONTROL: key = 0; break;
case WXK_ALT: key = 0; break;
case WXK_SHIFT: key = 0; break;
case WXK_MENU: key = SCK_MENU; break;
case WXK_NONE:
#ifdef __WXGTK20__
if (evt.RawControlDown())
{
// To allow Ctrl-key shortcuts to work with non-Latin keyboard layouts,
// look for any available layout that would produce an ASCII letter for
// the given hardware keycode
const unsigned keycode = evt.GetRawKeyFlags();
GdkKeymap* keymap = gdk_keymap_get_for_display(gdk_display_get_default());
GdkKeymapKey keymapKey = { keycode, 0, 1 };
do {
const unsigned keyval = gdk_keymap_lookup_key(keymap, &keymapKey);
if (keyval >= 'A' && keyval <= 'Z')
{
key = keyval;
break;
}
keymapKey.group++;
} while (keymapKey.group < 4);
if (key == WXK_NONE)
{
// There may be no keyboard layouts with Latin keys available,
// fall back to a hard-coded mapping for the common pc105
static const char keycodeToKeyval[] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I',
'O', 'P', 0, 0, 0, 0, 'A', 'S',
'D', 'F', 'G', 'H', 'J', 'K', 'L', 0,
0, 0, 0, 0, 'Z', 'X', 'C', 'V',
'B', 'N', 'M'
};
if (keycode < sizeof(keycodeToKeyval))
key = keycodeToKeyval[keycode];
}
}
if (key == WXK_NONE)
#endif
{
// This is a Unicode character not representable in Latin-1 or some key
// without key code at all (e.g. dead key or VK_PROCESSKEY under MSW).
if (consumed)
*consumed = false;
return 0;
}
}
int rv = KeyDownWithModifiers
(
key,
ModifierFlags
(
evt.ShiftDown(),
evt.ControlDown(),
evt.AltDown(),
// Under Mac, ControlDown() returns the status of Cmd key,
// so we sneak the status of the real Ctrl key via SCI_META
// but we shouldn't be doing this elsewhere.
#ifdef __WXMAC__
evt.RawControlDown()
#else
0
#endif
),
consumed
);
if (key)
return rv;
else
return 1;
}
void ScintillaWX::DoCommand(int ID) {
Command(ID);
}
bool ScintillaWX::DoContextMenu(Point pt) {
if (ShouldDisplayPopup(pt))
{
// To prevent generating EVT_MOUSE_CAPTURE_LOST.
if ( HaveMouseCapture() ) {
SetMouseCapture(false);
}
ContextMenu(pt);
return true;
}
return false;
}
void ScintillaWX::DoOnListBox() {
AutoCompleteCompleted(0, SC_AC_COMMAND);
}
void ScintillaWX::DoMouseCaptureLost()
{
capturedMouse = false;
}
void ScintillaWX::DoOnIdle(wxIdleEvent& evt) {
if ( Idle() )
evt.RequestMore();
else
SetIdle(false);
}
//----------------------------------------------------------------------
#if wxUSE_DRAG_AND_DROP
bool ScintillaWX::DoDropText(long x, long y, const wxString& data) {
SetDragPosition(SelectionPosition(invalidPosition));
wxString text = wxTextBuffer::Translate(data,
wxConvertEOLMode(pdoc->eolMode));
// Send an event to allow the drag details to be changed
wxStyledTextEvent evt(wxEVT_STC_DO_DROP, stc->GetId());
evt.SetEventObject(stc);
evt.SetDragResult(dragResult);
evt.SetX(x);
evt.SetY(y);
evt.SetPosition(PositionFromLocation(Point(x,y)));
evt.SetString(text);
stc->GetEventHandler()->ProcessEvent(evt);
dragResult = evt.GetDragResult();
if (dragResult == wxDragMove || dragResult == wxDragCopy) {
DropAt(SelectionPosition(evt.GetPosition()),
wx2stc(evt.GetString()),
dragResult == wxDragMove,
false); // TODO: rectangular?
return true;
}
return false;
}
wxDragResult ScintillaWX::DoDragEnter(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxDragResult def) {
dragResult = def;
return dragResult;
}
wxDragResult ScintillaWX::DoDragOver(wxCoord x, wxCoord y, wxDragResult def) {
SetDragPosition(SelectionPosition(PositionFromLocation(Point(x, y))));
// Send an event to allow the drag result to be changed
wxStyledTextEvent evt(wxEVT_STC_DRAG_OVER, stc->GetId());
evt.SetEventObject(stc);
evt.SetDragResult(def);
evt.SetX(x);
evt.SetY(y);
evt.SetPosition(PositionFromLocation(Point(x,y)));
stc->GetEventHandler()->ProcessEvent(evt);
dragResult = evt.GetDragResult();
return dragResult;
}
void ScintillaWX::DoDragLeave() {
SetDragPosition(SelectionPosition(invalidPosition));
}
#endif // wxUSE_DRAG_AND_DROP
//----------------------------------------------------------------------
void ScintillaWX::DoScrollToLine(int line) {
ScrollTo(line);
}
void ScintillaWX::DoScrollToColumn(int column) {
HorizontalScrollTo(wxRound(column * vs.spaceWidth));
}
// wxGTK doesn't appear to need this explicit clipping code any longer, but I
// will leave it here commented out for a while just in case...
void ScintillaWX::ClipChildren(wxDC& WXUNUSED(dc), PRectangle WXUNUSED(rect))
{
// wxRegion rgn(wxRectFromPRectangle(rect));
// if (ac.Active()) {
// wxRect childRect = ((wxWindow*)ac.lb->GetID())->GetRect();
// rgn.Subtract(childRect);
// }
// if (ct.inCallTipMode) {
// wxSTCCallTip* tip = (wxSTCCallTip*)ct.wCallTip.GetID();
// wxRect childRect = tip->GetRect();
// #if wxUSE_POPUPWIN
// childRect.SetPosition(tip->GetMyPosition());
// #endif
// rgn.Subtract(childRect);
// }
// dc.SetClippingRegion(rgn);
}
void ScintillaWX::SetUseAntiAliasing(bool useAA) {
vs.extraFontFlag = useAA;
InvalidateStyleRedraw();
}
bool ScintillaWX::GetUseAntiAliasing() {
return vs.extraFontFlag != 0;
}
void ScintillaWX::DoMarkerDefineBitmap(int markerNumber, const wxBitmap& bmp) {
if ( 0 <= markerNumber && markerNumber <= MARKER_MAX) {
// Build an RGBA buffer from bmp.
const int totalPixels = bmp.GetWidth() * bmp.GetHeight();
wxScopedArray<unsigned char> rgba(4*bmp.GetWidth()*bmp.GetHeight());
wxImage img = bmp.ConvertToImage();
int curRGBALoc = 0, curDataLoc = 0, curAlphaLoc = 0;
if ( img.HasMask() ) {
for ( int y = 0; y < bmp.GetHeight(); ++y ) {
for ( int x = 0 ; x < bmp.GetWidth(); ++x ) {
rgba[curRGBALoc++] = img.GetData()[curDataLoc++];
rgba[curRGBALoc++] = img.GetData()[curDataLoc++];
rgba[curRGBALoc++] = img.GetData()[curDataLoc++];
rgba[curRGBALoc++] = img.IsTransparent(x,y)
? wxALPHA_TRANSPARENT : wxALPHA_OPAQUE ;
}
}
}
else if ( img.HasAlpha() ) {
for ( int i = 0; i < totalPixels; ++i ) {
rgba[curRGBALoc++] = img.GetData()[curDataLoc++];
rgba[curRGBALoc++] = img.GetData()[curDataLoc++];
rgba[curRGBALoc++] = img.GetData()[curDataLoc++];
rgba[curRGBALoc++] = img.GetAlpha()[curAlphaLoc++];
}
}
else {
for ( int i = 0; i < totalPixels; ++i ) {
rgba[curRGBALoc++] = img.GetData()[curDataLoc++];
rgba[curRGBALoc++] = img.GetData()[curDataLoc++];
rgba[curRGBALoc++] = img.GetData()[curDataLoc++];
rgba[curRGBALoc++] = wxALPHA_OPAQUE ;
}
}
// Now follow the same procedure used for handling the
// SCI_MARKERDEFINERGBAIMAGE message, except use the bitmap's width and
// height instead of the values stored in sizeRGBAImage.
Point bitmapSize = Point::FromInts(bmp.GetWidth(), bmp.GetHeight());
vs.markers[markerNumber].SetRGBAImage(bitmapSize, 1.0f, rgba.get());
vs.CalcLargestMarkerHeight();
}
InvalidateStyleData();
RedrawSelMargin();
}
void ScintillaWX::DoRegisterImage(int type, const wxBitmap& bmp) {
static_cast<ListBoxImpl*>(ac.lb)->RegisterImageHelper(type, bmp);
}
sptr_t ScintillaWX::DirectFunction(
ScintillaWX* swx, unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
return swx->WndProc(iMessage, wParam, lParam);
}
//----------------------------------------------------------------------
// ScintillaWin
#ifdef __WXMSW__
#ifdef __VISUALC__
#pragma comment(lib, "imm32.lib")
#endif
namespace {
POINT POINTFromPoint(Point pt) wxNOEXCEPT {
POINT ret;
ret.x = static_cast<LONG>(pt.x);
ret.y = static_cast<LONG>(pt.y);
return ret;
}
class IMContext {
HWND hwnd;
public:
HIMC hIMC;
IMContext(HWND hwnd_) wxNOEXCEPT :
hwnd(hwnd_), hIMC(::ImmGetContext(hwnd_)) {
}
~IMContext() {
if (hIMC)
::ImmReleaseContext(hwnd, hIMC);
}
unsigned int GetImeCaretPos() const wxNOEXCEPT {
return ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, wxNullPtr, 0);
}
std::vector<BYTE> GetImeAttributes() {
const int attrLen = ::ImmGetCompositionStringW(hIMC, GCS_COMPATTR, wxNullPtr, 0);
std::vector<BYTE> attr(attrLen, 0);
::ImmGetCompositionStringW(hIMC, GCS_COMPATTR, &attr[0], static_cast<DWORD>(attr.size()));
return attr;
}
std::wstring GetCompositionString(DWORD dwIndex) {
const LONG byteLen = ::ImmGetCompositionStringW(hIMC, dwIndex, wxNullPtr, 0);
std::wstring wcs(byteLen / 2, 0);
::ImmGetCompositionStringW(hIMC, dwIndex, &wcs[0], byteLen);
return wcs;
}
private:
// Private so IMContext objects can not be copied.
IMContext(const IMContext&);
IMContext& operator=(const IMContext&);
};
}
HWND ScintillaWX::MainHWND() const wxNOEXCEPT {
return static_cast<HWND>(wMain.GetID());
}
/**
* DBCS: support Input Method Editor (IME).
* Called when IME Window opened.
*/
void ScintillaWX::ImeStartComposition() {
if (caret.active) {
// Move IME Window to current caret position
IMContext imc(stc->GetHandle());
const Point pos = PointMainCaret();
COMPOSITIONFORM CompForm;
CompForm.dwStyle = CFS_POINT;
CompForm.ptCurrentPos = POINTFromPoint(pos);
::ImmSetCompositionWindow(imc.hIMC, &CompForm);
// Set font of IME window to same as surrounded text.
if (stylesValid) {
// Since the style creation code has been made platform independent,
// The logfont for the IME is recreated here.
const int styleHere = pdoc->StyleIndexAt(sel.MainCaret());
LOGFONTW lf = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, L"" };
int sizeZoomed = vs.styles[styleHere].size + vs.zoomLevel * SC_FONT_SIZE_MULTIPLIER;
if (sizeZoomed <= 2 * SC_FONT_SIZE_MULTIPLIER) // Hangs if sizeZoomed <= 1
sizeZoomed = 2 * SC_FONT_SIZE_MULTIPLIER;
// The negative is to allow for leading
lf.lfHeight = -::MulDiv(sizeZoomed, stc->GetDPI().y, 72 * SC_FONT_SIZE_MULTIPLIER);
lf.lfWeight = vs.styles[styleHere].weight;
lf.lfItalic = static_cast<BYTE>(vs.styles[styleHere].italic ? 1 : 0);
lf.lfCharSet = DEFAULT_CHARSET;
lf.lfFaceName[0] = L'\0';
if (vs.styles[styleHere].fontName) {
const char* fontName = vs.styles[styleHere].fontName;
UTF16FromUTF8(fontName, strlen(fontName)+1, lf.lfFaceName, LF_FACESIZE);
}
::ImmSetCompositionFontW(imc.hIMC, &lf);
}
// Caret is displayed in IME window. So, caret in Scintilla is useless.
DropCaret();
}
}
/** Called when IME Window closed. */
void ScintillaWX::ImeEndComposition() {
ShowCaretAtCurrentPosition();
}
#endif // __WXMSW__
//----------------------------------------------------------------------
//----------------------------------------------------------------------
#endif // wxUSE_STC
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