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notepad-plus-plus-legacy/scintilla/qt/ScintillaEditBase/PlatQt.cpp

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//
// Copyright (c) 1990-2011, Scientific Toolworks, Inc.
//
// The License.txt file describes the conditions under which this software may be distributed.
//
// Author: Jason Haslam
//
// Additions Copyright (c) 2011 Archaeopteryx Software, Inc. d/b/a Wingware
// Scintilla platform layer for Qt
#include "PlatQt.h"
#include "Scintilla.h"
#include "FontQuality.h"
#include <QApplication>
#include <QFont>
#include <QColor>
#include <QRect>
#include <QPaintDevice>
#include <QPaintEngine>
#include <QWidget>
#include <QPixmap>
#include <QPainter>
#include <QMenu>
#include <QAction>
#include <QTime>
#include <QMessageBox>
#include <QTextCodec>
#include <QListWidget>
#include <QVarLengthArray>
#include <QScrollBar>
#include <QDesktopWidget>
#include <QTextLayout>
#include <QTextLine>
#include <QLibrary>
#include <QElapsedTimer>
#include <cstdio>
#ifdef SCI_NAMESPACE
namespace Scintilla {
#endif
//----------------------------------------------------------------------
// Convert from a Scintilla characterSet value to a Qt codec name.
const char *CharacterSetID(int characterSet)
{
switch (characterSet) {
//case SC_CHARSET_ANSI:
// return "";
case SC_CHARSET_DEFAULT:
return "ISO 8859-1";
case SC_CHARSET_BALTIC:
return "ISO 8859-13";
case SC_CHARSET_CHINESEBIG5:
return "Big5";
case SC_CHARSET_EASTEUROPE:
return "ISO 8859-2";
case SC_CHARSET_GB2312:
return "GB18030-0";
case SC_CHARSET_GREEK:
return "ISO 8859-7";
case SC_CHARSET_HANGUL:
return "CP949";
case SC_CHARSET_MAC:
return "Apple Roman";
//case SC_CHARSET_OEM:
// return "ASCII";
case SC_CHARSET_RUSSIAN:
return "KOI8-R";
case SC_CHARSET_CYRILLIC:
return "Windows-1251";
case SC_CHARSET_SHIFTJIS:
return "Shift-JIS";
//case SC_CHARSET_SYMBOL:
// return "";
case SC_CHARSET_TURKISH:
return "ISO 8859-9";
//case SC_CHARSET_JOHAB:
// return "CP1361";
case SC_CHARSET_HEBREW:
return "ISO 8859-8";
case SC_CHARSET_ARABIC:
return "ISO 8859-6";
case SC_CHARSET_VIETNAMESE:
return "Windows-1258";
case SC_CHARSET_THAI:
return "TIS-620";
case SC_CHARSET_8859_15:
return "ISO 8859-15";
default:
return "ISO 8859-1";
}
}
class FontAndCharacterSet {
public:
int characterSet;
QFont *pfont;
FontAndCharacterSet(int characterSet_, QFont *pfont):
characterSet(characterSet_), pfont(pfont) {
}
~FontAndCharacterSet() {
delete pfont;
pfont = 0;
}
};
static int FontCharacterSet(Font &f)
{
return reinterpret_cast<FontAndCharacterSet *>(f.GetID())->characterSet;
}
static QFont *FontPointer(Font &f)
{
return reinterpret_cast<FontAndCharacterSet *>(f.GetID())->pfont;
}
Font::Font() : fid(0) {}
Font::~Font()
{
delete reinterpret_cast<FontAndCharacterSet *>(fid);
fid = 0;
}
static QFont::StyleStrategy ChooseStrategy(int eff)
{
switch (eff) {
case SC_EFF_QUALITY_DEFAULT: return QFont::PreferDefault;
case SC_EFF_QUALITY_NON_ANTIALIASED: return QFont::NoAntialias;
case SC_EFF_QUALITY_ANTIALIASED: return QFont::PreferAntialias;
case SC_EFF_QUALITY_LCD_OPTIMIZED: return QFont::PreferAntialias;
default: return QFont::PreferDefault;
}
}
void Font::Create(const FontParameters &fp)
{
Release();
QFont *font = new QFont;
font->setStyleStrategy(ChooseStrategy(fp.extraFontFlag));
font->setFamily(QString::fromUtf8(fp.faceName));
font->setPointSize(fp.size);
font->setBold(fp.weight > 500);
font->setItalic(fp.italic);
fid = new FontAndCharacterSet(fp.characterSet, font);
}
void Font::Release()
{
if (fid)
delete reinterpret_cast<FontAndCharacterSet *>(fid);
fid = 0;
}
SurfaceImpl::SurfaceImpl()
: device(0), painter(0), deviceOwned(false), painterOwned(false), x(0), y(0),
unicodeMode(false), codePage(0), codecName(0), codec(0)
{}
SurfaceImpl::~SurfaceImpl()
{
Release();
}
void SurfaceImpl::Init(WindowID wid)
{
Release();
device = static_cast<QWidget *>(wid);
}
void SurfaceImpl::Init(SurfaceID sid, WindowID /*wid*/)
{
Release();
device = static_cast<QPaintDevice *>(sid);
}
void SurfaceImpl::InitPixMap(int width,
int height,
Surface *surface,
WindowID /*wid*/)
{
Release();
if (width < 1) width = 1;
if (height < 1) height = 1;
deviceOwned = true;
device = new QPixmap(width, height);
SurfaceImpl *psurfOther = static_cast<SurfaceImpl *>(surface);
SetUnicodeMode(psurfOther->unicodeMode);
SetDBCSMode(psurfOther->codePage);
}
void SurfaceImpl::Release()
{
if (painterOwned && painter) {
delete painter;
}
if (deviceOwned && device) {
delete device;
}
device = 0;
painter = 0;
deviceOwned = false;
painterOwned = false;
}
bool SurfaceImpl::Initialised()
{
return device != 0;
}
void SurfaceImpl::PenColour(ColourDesired fore)
{
QPen penOutline(QColorFromCA(fore));
penOutline.setCapStyle(Qt::FlatCap);
GetPainter()->setPen(penOutline);
}
void SurfaceImpl::BrushColour(ColourDesired back)
{
GetPainter()->setBrush(QBrush(QColorFromCA(back)));
}
void SurfaceImpl::SetCodec(Font &font)
{
if (font.GetID()) {
const char *csid = "UTF-8";
if (!unicodeMode)
csid = CharacterSetID(FontCharacterSet(font));
if (csid != codecName) {
codecName = csid;
codec = QTextCodec::codecForName(csid);
}
}
}
void SurfaceImpl::SetFont(Font &font)
{
if (font.GetID()) {
GetPainter()->setFont(*FontPointer(font));
SetCodec(font);
}
}
int SurfaceImpl::LogPixelsY()
{
return device->logicalDpiY();
}
int SurfaceImpl::DeviceHeightFont(int points)
{
return points;
}
void SurfaceImpl::MoveTo(int x_, int y_)
{
x = x_;
y = y_;
}
void SurfaceImpl::LineTo(int x_, int y_)
{
QLineF line(x, y, x_, y_);
GetPainter()->drawLine(line);
x = x_;
y = y_;
}
void SurfaceImpl::Polygon(Point *pts,
int npts,
ColourDesired fore,
ColourDesired back)
{
PenColour(fore);
BrushColour(back);
QPoint *qpts = new QPoint[npts];
for (int i = 0; i < npts; i++) {
qpts[i] = QPoint(pts[i].x, pts[i].y);
}
GetPainter()->drawPolygon(qpts, npts);
delete [] qpts;
}
void SurfaceImpl::RectangleDraw(PRectangle rc,
ColourDesired fore,
ColourDesired back)
{
PenColour(fore);
BrushColour(back);
QRectF rect(rc.left, rc.top, rc.Width() - 1, rc.Height() - 1);
GetPainter()->drawRect(rect);
}
void SurfaceImpl::FillRectangle(PRectangle rc, ColourDesired back)
{
GetPainter()->fillRect(QRectFFromPRect(rc), QColorFromCA(back));
}
void SurfaceImpl::FillRectangle(PRectangle rc, Surface &surfacePattern)
{
// Tile pattern over rectangle
SurfaceImpl *surface = static_cast<SurfaceImpl *>(&surfacePattern);
// Currently assumes 8x8 pattern
int widthPat = 8;
int heightPat = 8;
for (int xTile = rc.left; xTile < rc.right; xTile += widthPat) {
int widthx = (xTile + widthPat > rc.right) ? rc.right - xTile : widthPat;
for (int yTile = rc.top; yTile < rc.bottom; yTile += heightPat) {
int heighty = (yTile + heightPat > rc.bottom) ? rc.bottom - yTile : heightPat;
QRect source(0, 0, widthx, heighty);
QRect target(xTile, yTile, widthx, heighty);
QPixmap *pixmap = static_cast<QPixmap *>(surface->GetPaintDevice());
GetPainter()->drawPixmap(target, *pixmap, source);
}
}
}
void SurfaceImpl::RoundedRectangle(PRectangle rc,
ColourDesired fore,
ColourDesired back)
{
PenColour(fore);
BrushColour(back);
GetPainter()->drawRoundRect(QRectFFromPRect(rc));
}
void SurfaceImpl::AlphaRectangle(PRectangle rc,
int cornerSize,
ColourDesired fill,
int alphaFill,
ColourDesired outline,
int alphaOutline,
int /*flags*/)
{
QColor qOutline = QColorFromCA(outline);
qOutline.setAlpha(alphaOutline);
GetPainter()->setPen(QPen(qOutline));
QColor qFill = QColorFromCA(fill);
qFill.setAlpha(alphaFill);
GetPainter()->setBrush(QBrush(qFill));
// A radius of 1 shows no curve so add 1
qreal radius = cornerSize+1;
QRectF rect(rc.left, rc.top, rc.Width() - 1, rc.Height() - 1);
GetPainter()->drawRoundedRect(rect, radius, radius);
}
static std::vector<unsigned char> ImageByteSwapped(int width, int height, const unsigned char *pixelsImage)
{
// Input is RGBA, but Format_ARGB32 is BGRA, so swap the red bytes and blue bytes
size_t bytes = width * height * 4;
std::vector<unsigned char> imageBytes(pixelsImage, pixelsImage+bytes);
for (size_t i=0; i<bytes; i+=4)
std::swap(imageBytes[i], imageBytes[i+2]);
return imageBytes;
}
void SurfaceImpl::DrawRGBAImage(PRectangle rc, int width, int height, const unsigned char *pixelsImage)
{
std::vector<unsigned char> imageBytes = ImageByteSwapped(width, height, pixelsImage);
QImage image(&imageBytes[0], width, height, QImage::Format_ARGB32);
QPoint pt(rc.left, rc.top);
GetPainter()->drawImage(pt, image);
}
void SurfaceImpl::Ellipse(PRectangle rc,
ColourDesired fore,
ColourDesired back)
{
PenColour(fore);
BrushColour(back);
GetPainter()->drawEllipse(QRectFFromPRect(rc));
}
void SurfaceImpl::Copy(PRectangle rc, Point from, Surface &surfaceSource)
{
SurfaceImpl *source = static_cast<SurfaceImpl *>(&surfaceSource);
QPixmap *pixmap = static_cast<QPixmap *>(source->GetPaintDevice());
GetPainter()->drawPixmap(rc.left, rc.top, *pixmap, from.x, from.y, -1, -1);
}
void SurfaceImpl::DrawTextNoClip(PRectangle rc,
Font &font,
XYPOSITION ybase,
const char *s,
int len,
ColourDesired fore,
ColourDesired back)
{
SetFont(font);
PenColour(fore);
GetPainter()->setBackground(QColorFromCA(back));
GetPainter()->setBackgroundMode(Qt::OpaqueMode);
QString su = codec->toUnicode(s, len);
GetPainter()->drawText(QPointF(rc.left, ybase), su);
}
void SurfaceImpl::DrawTextClipped(PRectangle rc,
Font &font,
XYPOSITION ybase,
const char *s,
int len,
ColourDesired fore,
ColourDesired back)
{
SetClip(rc);
DrawTextNoClip(rc, font, ybase, s, len, fore, back);
GetPainter()->setClipping(false);
}
void SurfaceImpl::DrawTextTransparent(PRectangle rc,
Font &font,
XYPOSITION ybase,
const char *s,
int len,
ColourDesired fore)
{
SetFont(font);
PenColour(fore);
GetPainter()->setBackgroundMode(Qt::TransparentMode);
QString su = codec->toUnicode(s, len);
GetPainter()->drawText(QPointF(rc.left, ybase), su);
}
void SurfaceImpl::SetClip(PRectangle rc)
{
GetPainter()->setClipRect(QRectFFromPRect(rc));
}
static size_t utf8LengthFromLead(unsigned char uch)
{
if (uch >= (0x80 + 0x40 + 0x20 + 0x10)) {
return 4;
} else if (uch >= (0x80 + 0x40 + 0x20)) {
return 3;
} else if (uch >= (0x80)) {
return 2;
} else {
return 1;
}
}
void SurfaceImpl::MeasureWidths(Font &font,
const char *s,
int len,
XYPOSITION *positions)
{
if (!font.GetID())
return;
SetCodec(font);
QString su = codec->toUnicode(s, len);
QTextLayout tlay(su, *FontPointer(font), GetPaintDevice());
tlay.beginLayout();
QTextLine tl = tlay.createLine();
tlay.endLayout();
if (unicodeMode) {
int fit = su.size();
int ui=0;
const unsigned char *us = reinterpret_cast<const unsigned char *>(s);
int i=0;
while (ui<fit) {
size_t lenChar = utf8LengthFromLead(us[i]);
int codeUnits = (lenChar < 4) ? 1 : 2;
qreal xPosition = tl.cursorToX(ui+codeUnits);
for (unsigned int bytePos=0; (bytePos<lenChar) && (i<len); bytePos++) {
positions[i++] = xPosition;
}
ui += codeUnits;
}
XYPOSITION lastPos = 0;
if (i > 0)
lastPos = positions[i-1];
while (i<len) {
positions[i++] = lastPos;
}
} else if (codePage) {
// DBCS
int ui = 0;
for (int i=0; i<len;) {
size_t lenChar = Platform::IsDBCSLeadByte(codePage, s[i]) ? 2 : 1;
qreal xPosition = tl.cursorToX(ui+1);
for (unsigned int bytePos=0; (bytePos<lenChar) && (i<len); bytePos++) {
positions[i++] = xPosition;
}
ui++;
}
} else {
// Single byte encoding
for (int i=0; i<len; i++) {
positions[i] = tl.cursorToX(i+1);
}
}
}
XYPOSITION SurfaceImpl::WidthText(Font &font, const char *s, int len)
{
QFontMetricsF metrics(*FontPointer(font), device);
SetCodec(font);
QString string = codec->toUnicode(s, len);
return metrics.width(string);
}
XYPOSITION SurfaceImpl::WidthChar(Font &font, char ch)
{
QFontMetricsF metrics(*FontPointer(font), device);
return metrics.width(ch);
}
XYPOSITION SurfaceImpl::Ascent(Font &font)
{
QFontMetricsF metrics(*FontPointer(font), device);
return metrics.ascent();
}
XYPOSITION SurfaceImpl::Descent(Font &font)
{
QFontMetricsF metrics(*FontPointer(font), device);
// Qt returns 1 less than true descent
// See: QFontEngineWin::descent which says:
// ### we subtract 1 to even out the historical +1 in QFontMetrics's
// ### height=asc+desc+1 equation. Fix in Qt5.
return metrics.descent() + 1;
}
XYPOSITION SurfaceImpl::InternalLeading(Font & /* font */)
{
return 0;
}
XYPOSITION SurfaceImpl::ExternalLeading(Font &font)
{
QFontMetricsF metrics(*FontPointer(font), device);
return metrics.leading();
}
XYPOSITION SurfaceImpl::Height(Font &font)
{
QFontMetricsF metrics(*FontPointer(font), device);
return metrics.height();
}
XYPOSITION SurfaceImpl::AverageCharWidth(Font &font)
{
QFontMetricsF metrics(*FontPointer(font), device);
return metrics.averageCharWidth();
}
void SurfaceImpl::FlushCachedState()
{
if (device->paintingActive()) {
GetPainter()->setPen(QPen());
GetPainter()->setBrush(QBrush());
}
}
void SurfaceImpl::SetUnicodeMode(bool unicodeMode_)
{
unicodeMode=unicodeMode_;
}
void SurfaceImpl::SetDBCSMode(int codePage_)
{
codePage = codePage_;
}
QPaintDevice *SurfaceImpl::GetPaintDevice()
{
return device;
}
QPainter *SurfaceImpl::GetPainter()
{
Q_ASSERT(device);
if (painter == 0) {
if (device->paintingActive()) {
painter = device->paintEngine()->painter();
} else {
painterOwned = true;
painter = new QPainter(device);
}
// Set text antialiasing unconditionally.
// The font's style strategy will override.
painter->setRenderHint(QPainter::TextAntialiasing, true);
}
return painter;
}
Surface *Surface::Allocate(int)
{
return new SurfaceImpl;
}
//----------------------------------------------------------------------
namespace {
QWidget *window(WindowID wid)
{
return static_cast<QWidget *>(wid);
}
}
Window::~Window() {}
void Window::Destroy()
{
if (wid)
delete window(wid);
wid = 0;
}
bool Window::HasFocus()
{
return wid ? window(wid)->hasFocus() : false;
}
PRectangle Window::GetPosition()
{
// Before any size allocated pretend its 1000 wide so not scrolled
return wid ? PRectFromQRect(window(wid)->frameGeometry()) : PRectangle(0, 0, 1000, 1000);
}
void Window::SetPosition(PRectangle rc)
{
if (wid)
window(wid)->setGeometry(QRectFromPRect(rc));
}
void Window::SetPositionRelative(PRectangle rc, Window relativeTo)
{
QPoint oPos = window(relativeTo.wid)->mapToGlobal(QPoint(0,0));
int ox = oPos.x();
int oy = oPos.y();
ox += rc.left;
oy += rc.top;
QDesktopWidget *desktop = QApplication::desktop();
QRect rectDesk = desktop->availableGeometry(QPoint(ox, oy));
/* do some corrections to fit into screen */
int sizex = rc.right - rc.left;
int sizey = rc.bottom - rc.top;
int screenWidth = rectDesk.width();
if (ox < rectDesk.x())
ox = rectDesk.x();
if (sizex > screenWidth)
ox = rectDesk.x(); /* the best we can do */
else if (ox + sizex > rectDesk.right())
ox = rectDesk.right() - sizex;
if (oy + sizey > rectDesk.bottom())
oy = rectDesk.bottom() - sizey;
Q_ASSERT(wid);
window(wid)->move(ox, oy);
window(wid)->resize(sizex, sizey);
}
PRectangle Window::GetClientPosition()
{
// The client position is the window position
return GetPosition();
}
void Window::Show(bool show)
{
if (wid)
window(wid)->setVisible(show);
}
void Window::InvalidateAll()
{
if (wid)
window(wid)->update();
}
void Window::InvalidateRectangle(PRectangle rc)
{
if (wid)
window(wid)->update(QRectFromPRect(rc));
}
void Window::SetFont(Font &font)
{
if (wid)
window(wid)->setFont(*FontPointer(font));
}
void Window::SetCursor(Cursor curs)
{
if (wid) {
Qt::CursorShape shape;
switch (curs) {
case cursorText: shape = Qt::IBeamCursor; break;
case cursorArrow: shape = Qt::ArrowCursor; break;
case cursorUp: shape = Qt::UpArrowCursor; break;
case cursorWait: shape = Qt::WaitCursor; break;
case cursorHoriz: shape = Qt::SizeHorCursor; break;
case cursorVert: shape = Qt::SizeVerCursor; break;
case cursorHand: shape = Qt::PointingHandCursor; break;
default: shape = Qt::ArrowCursor; break;
}
QCursor cursor = QCursor(shape);
if (curs != cursorLast) {
window(wid)->setCursor(cursor);
cursorLast = curs;
}
}
}
void Window::SetTitle(const char *s)
{
if (wid)
window(wid)->setWindowTitle(s);
}
/* Returns rectangle of monitor pt is on, both rect and pt are in Window's
window coordinates */
PRectangle Window::GetMonitorRect(Point pt)
{
QPoint originGlobal = window(wid)->mapToGlobal(QPoint(0, 0));
QPoint posGlobal = window(wid)->mapToGlobal(QPoint(pt.x, pt.y));
QDesktopWidget *desktop = QApplication::desktop();
QRect rectScreen = desktop->availableGeometry(posGlobal);
rectScreen.translate(-originGlobal.x(), -originGlobal.y());
return PRectangle(rectScreen.left(), rectScreen.top(),
rectScreen.right(), rectScreen.bottom());
}
//----------------------------------------------------------------------
class ListBoxImpl : public ListBox {
public:
ListBoxImpl();
~ListBoxImpl();
virtual void SetFont(Font &font);
virtual void Create(Window &parent, int ctrlID, Point location,
int lineHeight, bool unicodeMode, int technology);
virtual void SetAverageCharWidth(int width);
virtual void SetVisibleRows(int rows);
virtual int GetVisibleRows() const;
virtual PRectangle GetDesiredRect();
virtual int CaretFromEdge();
virtual void Clear();
virtual void Append(char *s, int type = -1);
virtual int Length();
virtual void Select(int n);
virtual int GetSelection();
virtual int Find(const char *prefix);
virtual void GetValue(int n, char *value, int len);
virtual void RegisterImage(int type, const char *xpmData);
virtual void RegisterRGBAImage(int type, int width, int height,
const unsigned char *pixelsImage);
virtual void RegisterQPixmapImage(int type, const QPixmap& pm);
virtual void ClearRegisteredImages();
virtual void SetDoubleClickAction(CallBackAction action, void *data);
virtual void SetList(const char *list, char separator, char typesep);
private:
bool unicodeMode;
int visibleRows;
QMap<int,QPixmap> images;
};
class ListWidget : public QListWidget {
public:
explicit ListWidget(QWidget *parent);
virtual ~ListWidget();
void setDoubleClickAction(CallBackAction action, void *data);
protected:
virtual void mouseDoubleClickEvent(QMouseEvent *event);
virtual QStyleOptionViewItem viewOptions() const;
private:
CallBackAction doubleClickAction;
void *doubleClickActionData;
};
ListBoxImpl::ListBoxImpl()
: unicodeMode(false), visibleRows(5)
{}
ListBoxImpl::~ListBoxImpl() {}
void ListBoxImpl::Create(Window &parent,
int /*ctrlID*/,
Point location,
int /*lineHeight*/,
bool unicodeMode_,
int)
{
unicodeMode = unicodeMode_;
QWidget *qparent = static_cast<QWidget *>(parent.GetID());
ListWidget *list = new ListWidget(qparent);
#if defined(Q_OS_WIN)
// On Windows, Qt::ToolTip causes a crash when the list is clicked on
// so Qt::Tool is used.
list->setParent(0, Qt::Tool | Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint);
#else
// On OS X, Qt::Tool takes focus so main window loses focus so
// keyboard stops working. Qt::ToolTip works but its only really
// documented for tooltips.
// On Linux / X this setting allows clicking on list items.
list->setParent(0, Qt::ToolTip | Qt::FramelessWindowHint);
#endif
list->setAttribute(Qt::WA_ShowWithoutActivating);
list->setFocusPolicy(Qt::NoFocus);
list->setUniformItemSizes(true);
list->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
list->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
list->move(location.x, location.y);
int maxIconWidth = 0;
int maxIconHeight = 0;
foreach (QPixmap im, images) {
if (maxIconWidth < im.width())
maxIconWidth = im.width();
if (maxIconHeight < im.height())
maxIconHeight = im.height();
}
list->setIconSize(QSize(maxIconWidth, maxIconHeight));
wid = list;
}
void ListBoxImpl::SetFont(Font &font)
{
ListWidget *list = static_cast<ListWidget *>(wid);
list->setFont(*FontPointer(font));
}
void ListBoxImpl::SetAverageCharWidth(int /*width*/) {}
void ListBoxImpl::SetVisibleRows(int rows)
{
visibleRows = rows;
}
int ListBoxImpl::GetVisibleRows() const
{
return visibleRows;
}
PRectangle ListBoxImpl::GetDesiredRect()
{
ListWidget *list = static_cast<ListWidget *>(wid);
int rows = Length();
if (rows == 0 || rows > visibleRows) {
rows = visibleRows;
}
int rowHeight = list->sizeHintForRow(0);
int height = (rows * rowHeight) + (2 * list->frameWidth());
QStyle *style = QApplication::style();
int width = list->sizeHintForColumn(0) + (2 * list->frameWidth());
if (Length() > rows) {
width += style->pixelMetric(QStyle::PM_ScrollBarExtent);
}
return PRectangle(0, 0, width, height);
}
int ListBoxImpl::CaretFromEdge()
{
ListWidget *list = static_cast<ListWidget *>(wid);
int maxIconWidth = 0;
foreach (QPixmap im, images) {
if (maxIconWidth < im.width())
maxIconWidth = im.width();
}
int extra;
// The 12 is from trial and error on OS X and the 7
// is from trial and error on Windows - there may be
// a better programmatic way to find any padding factors.
#ifdef Q_OS_DARWIN
extra = 12;
#else
extra = 7;
#endif
return maxIconWidth + (2 * list->frameWidth()) + extra;
}
void ListBoxImpl::Clear()
{
ListWidget *list = static_cast<ListWidget *>(wid);
list->clear();
}
void ListBoxImpl::Append(char *s, int type)
{
ListWidget *list = static_cast<ListWidget *>(wid);
QString str = unicodeMode ? QString::fromUtf8(s) : QString::fromLocal8Bit(s);
QIcon icon;
if (type >= 0) {
Q_ASSERT(images.contains(type));
icon = images.value(type);
}
new QListWidgetItem(icon, str, list);
}
int ListBoxImpl::Length()
{
ListWidget *list = static_cast<ListWidget *>(wid);
return list->count();
}
void ListBoxImpl::Select(int n)
{
ListWidget *list = static_cast<ListWidget *>(wid);
QModelIndex index = list->model()->index(n, 0);
if (index.isValid()) {
QRect row_rect = list->visualRect(index);
if (!list->viewport()->rect().contains(row_rect)) {
list->scrollTo(index, QAbstractItemView::PositionAtTop);
}
}
list->setCurrentRow(n);
}
int ListBoxImpl::GetSelection()
{
ListWidget *list = static_cast<ListWidget *>(wid);
return list->currentRow();
}
int ListBoxImpl::Find(const char *prefix)
{
ListWidget *list = static_cast<ListWidget *>(wid);
QString sPrefix = unicodeMode ? QString::fromUtf8(prefix) : QString::fromLocal8Bit(prefix);
QList<QListWidgetItem *> ms = list->findItems(sPrefix, Qt::MatchStartsWith);
int result = -1;
if (!ms.isEmpty()) {
result = list->row(ms.first());
}
return result;
}
void ListBoxImpl::GetValue(int n, char *value, int len)
{
ListWidget *list = static_cast<ListWidget *>(wid);
QListWidgetItem *item = list->item(n);
QString str = item->data(Qt::DisplayRole).toString();
QByteArray bytes = unicodeMode ? str.toUtf8() : str.toLocal8Bit();
strncpy(value, bytes.constData(), len);
value[len-1] = '\0';
}
void ListBoxImpl::RegisterQPixmapImage(int type, const QPixmap& pm)
{
images[type] = pm;
ListWidget *list = static_cast<ListWidget *>(wid);
if (list != NULL) {
QSize iconSize = list->iconSize();
if (pm.width() > iconSize.width() || pm.height() > iconSize.height())
list->setIconSize(QSize(qMax(pm.width(), iconSize.width()),
qMax(pm.height(), iconSize.height())));
}
}
void ListBoxImpl::RegisterImage(int type, const char *xpmData)
{
RegisterQPixmapImage(type, QPixmap(reinterpret_cast<const char * const *>(xpmData)));
}
void ListBoxImpl::RegisterRGBAImage(int type, int width, int height, const unsigned char *pixelsImage)
{
std::vector<unsigned char> imageBytes = ImageByteSwapped(width, height, pixelsImage);
QImage image(&imageBytes[0], width, height, QImage::Format_ARGB32);
RegisterQPixmapImage(type, QPixmap::fromImage(image));
}
void ListBoxImpl::ClearRegisteredImages()
{
images.clear();
ListWidget *list = static_cast<ListWidget *>(wid);
if (list != NULL)
list->setIconSize(QSize(0, 0));
}
void ListBoxImpl::SetDoubleClickAction(CallBackAction action, void *data)
{
ListWidget *list = static_cast<ListWidget *>(wid);
list->setDoubleClickAction(action, data);
}
void ListBoxImpl::SetList(const char *list, char separator, char typesep)
{
// This method is *not* platform dependent.
// It is borrowed from the GTK implementation.
Clear();
size_t count = strlen(list) + 1;
std::vector<char> words(list, list+count);
char *startword = &words[0];
char *numword = NULL;
int i = 0;
for (; words[i]; i++) {
if (words[i] == separator) {
words[i] = '\0';
if (numword)
*numword = '\0';
Append(startword, numword?atoi(numword + 1):-1);
startword = &words[0] + i + 1;
numword = NULL;
} else if (words[i] == typesep) {
numword = &words[0] + i;
}
}
if (startword) {
if (numword)
*numword = '\0';
Append(startword, numword?atoi(numword + 1):-1);
}
}
ListBox::ListBox() {}
ListBox::~ListBox() {}
ListBox *ListBox::Allocate()
{
return new ListBoxImpl();
}
ListWidget::ListWidget(QWidget *parent)
: QListWidget(parent), doubleClickAction(0), doubleClickActionData(0)
{}
ListWidget::~ListWidget() {}
void ListWidget::setDoubleClickAction(CallBackAction action, void *data)
{
doubleClickAction = action;
doubleClickActionData = data;
}
void ListWidget::mouseDoubleClickEvent(QMouseEvent * /* event */)
{
if (doubleClickAction != 0) {
doubleClickAction(doubleClickActionData);
}
}
QStyleOptionViewItem ListWidget::viewOptions() const
{
QStyleOptionViewItem result = QListWidget::viewOptions();
result.state |= QStyle::State_Active;
return result;
}
//----------------------------------------------------------------------
Menu::Menu() : mid(0) {}
void Menu::CreatePopUp()
{
Destroy();
mid = new QMenu();
}
void Menu::Destroy()
{
if (mid) {
QMenu *menu = static_cast<QMenu *>(mid);
delete menu;
}
mid = 0;
}
void Menu::Show(Point pt, Window & /*w*/)
{
QMenu *menu = static_cast<QMenu *>(mid);
menu->exec(QPoint(pt.x, pt.y));
Destroy();
}
//----------------------------------------------------------------------
class DynamicLibraryImpl : public DynamicLibrary {
protected:
QLibrary *lib;
public:
explicit DynamicLibraryImpl(const char *modulePath) {
QString path = QString::fromUtf8(modulePath);
lib = new QLibrary(path);
}
virtual ~DynamicLibraryImpl() {
if (lib)
lib->unload();
lib = 0;
}
virtual Function FindFunction(const char *name) {
if (lib) {
// C++ standard doesn't like casts between function pointers and void pointers so use a union
union {
#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
QFunctionPointer fp;
#else
void *fp;
#endif
Function f;
} fnConv;
fnConv.fp = lib->resolve(name);
return fnConv.f;
}
return NULL;
}
virtual bool IsValid() {
return lib != NULL;
}
};
DynamicLibrary *DynamicLibrary::Load(const char *modulePath)
{
return static_cast<DynamicLibrary *>(new DynamicLibraryImpl(modulePath));
}
ColourDesired Platform::Chrome()
{
QColor c(Qt::gray);
return ColourDesired(c.red(), c.green(), c.blue());
}
ColourDesired Platform::ChromeHighlight()
{
QColor c(Qt::lightGray);
return ColourDesired(c.red(), c.green(), c.blue());
}
const char *Platform::DefaultFont()
{
static char fontNameDefault[200] = "";
if (!fontNameDefault[0]) {
QFont font = QApplication::font();
strcpy(fontNameDefault, font.family().toUtf8());
}
return fontNameDefault;
}
int Platform::DefaultFontSize()
{
QFont font = QApplication::font();
return font.pointSize();
}
unsigned int Platform::DoubleClickTime()
{
return QApplication::doubleClickInterval();
}
bool Platform::MouseButtonBounce()
{
return false;
}
bool Platform::IsKeyDown(int /*key*/)
{
return false;
}
long Platform::SendScintilla(WindowID /*w*/,
unsigned int /*msg*/,
unsigned long /*wParam*/,
long /*lParam*/)
{
return 0;
}
long Platform::SendScintillaPointer(WindowID /*w*/,
unsigned int /*msg*/,
unsigned long /*wParam*/,
void * /*lParam*/)
{
return 0;
}
int Platform::Minimum(int a, int b)
{
return qMin(a, b);
}
int Platform::Maximum(int a, int b)
{
return qMax(a, b);
}
int Platform::Clamp(int val, int minVal, int maxVal)
{
return qBound(minVal, val, maxVal);
}
void Platform::DebugDisplay(const char *s)
{
qWarning("Scintilla: %s", s);
}
void Platform::DebugPrintf(const char *format, ...)
{
char buffer[2000];
va_list pArguments;
va_start(pArguments, format);
vsprintf(buffer, format, pArguments);
va_end(pArguments);
Platform::DebugDisplay(buffer);
}
bool Platform::ShowAssertionPopUps(bool /*assertionPopUps*/)
{
return false;
}
void Platform::Assert(const char *c, const char *file, int line)
{
char buffer[2000];
sprintf(buffer, "Assertion [%s] failed at %s %d", c, file, line);
if (Platform::ShowAssertionPopUps(false)) {
QMessageBox mb("Assertion Failure", buffer, QMessageBox::NoIcon,
QMessageBox::Ok, QMessageBox::NoButton, QMessageBox::NoButton);
mb.exec();
} else {
strcat(buffer, "\n");
Platform::DebugDisplay(buffer);
}
}
bool Platform::IsDBCSLeadByte(int codePage, char ch)
{
// Byte ranges found in Wikipedia articles with relevant search strings in each case
unsigned char uch = static_cast<unsigned char>(ch);
switch (codePage) {
case 932:
// Shift_jis
return ((uch >= 0x81) && (uch <= 0x9F)) ||
((uch >= 0xE0) && (uch <= 0xEF));
case 936:
// GBK
return (uch >= 0x81) && (uch <= 0xFE);
case 949:
// Korean Wansung KS C-5601-1987
return (uch >= 0x81) && (uch <= 0xFE);
case 950:
// Big5
return (uch >= 0x81) && (uch <= 0xFE);
case 1361:
// Korean Johab KS C-5601-1992
return
((uch >= 0x84) && (uch <= 0xD3)) ||
((uch >= 0xD8) && (uch <= 0xDE)) ||
((uch >= 0xE0) && (uch <= 0xF9));
}
return false;
}
int Platform::DBCSCharLength(int codePage, const char *s)
{
if (codePage == 932 || codePage == 936 || codePage == 949 ||
codePage == 950 || codePage == 1361) {
return IsDBCSLeadByte(codePage, s[0]) ? 2 : 1;
} else {
return 1;
}
}
int Platform::DBCSCharMaxLength()
{
return 2;
}
//----------------------------------------------------------------------
static QElapsedTimer timer;
ElapsedTime::ElapsedTime() : bigBit(0), littleBit(0)
{
if (!timer.isValid()) {
timer.start();
}
qint64 ns64Now = timer.nsecsElapsed();
bigBit = static_cast<unsigned long>(ns64Now >> 32);
littleBit = static_cast<unsigned long>(ns64Now & 0xFFFFFFFF);
}
double ElapsedTime::Duration(bool reset)
{
qint64 ns64Now = timer.nsecsElapsed();
qint64 ns64Start = (static_cast<qint64>(static_cast<unsigned long>(bigBit)) << 32) + static_cast<unsigned long>(littleBit);
double result = ns64Now - ns64Start;
if (reset) {
bigBit = static_cast<unsigned long>(ns64Now >> 32);
littleBit = static_cast<unsigned long>(ns64Now & 0xFFFFFFFF);
}
return result / 1000000000.0; // 1 billion nanoseconds in a second
}
#ifdef SCI_NAMESPACE
}
#endif
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