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Diffstat (limited to 'qt/PlatQt.cpp')
| -rw-r--r-- | qt/PlatQt.cpp | 933 |
1 files changed, 933 insertions, 0 deletions
diff --git a/qt/PlatQt.cpp b/qt/PlatQt.cpp new file mode 100644 index 0000000..160ef70 --- /dev/null +++ b/qt/PlatQt.cpp @@ -0,0 +1,933 @@ +// This module implements the portability layer for the Qt port of Scintilla. +// +// Copyright (c) 2006 +// Riverbank Computing Limited <info@riverbankcomputing.co.uk> +// +// This file is part of QScintilla. +// +// This copy of QScintilla is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 2, or (at your option) any +// later version. +// +// QScintilla is supplied in the hope that it will be useful, but WITHOUT ANY +// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +// details. +// +// You should have received a copy of the GNU General Public License along with +// QScintilla; see the file LICENSE. If not, write to the Free Software +// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + +#include <stdio.h> +#include <stdarg.h> +#include <string.h> + +#include <qapplication.h> +#include <qwidget.h> +#include <qfont.h> +#include <qpixmap.h> +#include <qimage.h> +#include <qstring.h> +#include <qlistbox.h> +#include <qpopupmenu.h> +#include <qdatetime.h> +#include <qpainter.h> +#include <qcursor.h> +#include <qlibrary.h> + +#include "Platform.h" +#include "XPM.h" + +#include "qextscintillabase.h" + + +// Type convertors. +static QFont *PFont(FontID id) +{ + return reinterpret_cast<QFont *>(id); +} + +static QPainter *PSurface(SurfaceID id) +{ + return reinterpret_cast<QPainter *>(id); +} + +static QWidget *PWindow(WindowID id) +{ + return reinterpret_cast<QWidget *>(id); +} + +static QPopupMenu *PMenu(MenuID id) +{ + return reinterpret_cast<QPopupMenu *>(id); +} + + +// Create a Point instance from a long value. +Point Point::FromLong(long lpoint) +{ + return Point(Platform::LowShortFromLong(lpoint), + Platform::HighShortFromLong(lpoint)); +} + + +// Colour palette management. The Qt interface to colours means this class +// doesn't have to do anything. +Palette::Palette() +{ + used = 0; + allowRealization = false; +} + +Palette::~Palette() +{ + Release(); +} + +void Palette::Release() +{ + used = 0; +} + +void Palette::WantFind(ColourPair &cp,bool want) +{ + if (!want) + cp.allocated.Set(cp.desired.AsLong()); +} + +void Palette::Allocate(Window &) +{ +} + + +// Font management. +Font::Font() : id(0) +{ +} + +Font::~Font() +{ +} + +void Font::Create(const char *faceName,int,int size,bool bold,bool italic,bool) +{ + Release(); + + QFont *f = new QFont(); + + // If name of the font begins with a '-', assume, that it is an XLFD. + if (faceName[0] == '-') + f -> setRawName(faceName); + else + { + f -> setFamily(faceName); + f -> setPointSize(size); + f -> setBold(bold); + f -> setItalic(italic); + } + + id = f; +} + +void Font::Release() +{ + if (id) + { + delete PFont(id); + id = 0; + } +} + + +// A surface abstracts a place to draw. +class SurfaceImpl : public Surface +{ +public: + SurfaceImpl(); + virtual ~SurfaceImpl(); + + void Init(WindowID); + void Init(SurfaceID sid,WindowID); + void InitPixMap(int width,int height,Surface *surface_,WindowID); + + void Release(); + bool Initialised() {return painter;} + void PenColour(ColourAllocated fore); + int LogPixelsY() {return 72;} + int DeviceHeightFont(int points) {return points;} + void MoveTo(int x_,int y_) {painter -> moveTo(x_,y_);} + void LineTo(int x_,int y_) {painter -> lineTo(x_,y_);} + void Polygon(Point *pts,int npts,ColourAllocated fore, + ColourAllocated back); + void RectangleDraw(PRectangle rc,ColourAllocated fore, + ColourAllocated back); + void FillRectangle(PRectangle rc,ColourAllocated back); + void FillRectangle(PRectangle rc,Surface &surfacePattern); + void RoundedRectangle(PRectangle rc,ColourAllocated fore, + ColourAllocated back); + void AlphaRectangle(PRectangle rc, int cornerSize, + ColourAllocated fill, int alphaFill, + ColourAllocated outline, int alphaOutline, int flags); + void Ellipse(PRectangle rc,ColourAllocated fore,ColourAllocated back); + void Copy(PRectangle rc,Point from,Surface &surfaceSource); + + void DrawTextNoClip(PRectangle rc,Font &font_,int ybase,const char *s, + int len,ColourAllocated fore,ColourAllocated back); + void DrawTextClipped(PRectangle rc,Font &font_,int ybase,const char *s, + int len,ColourAllocated fore, + ColourAllocated back); + void DrawTextTransparent(PRectangle rc,Font &font_,int ybase, + const char *s,int len,ColourAllocated fore); + void MeasureWidths(Font &font_,const char *s,int len,int *positions); + int WidthText(Font &font_,const char *s,int len); + int WidthChar(Font &font_,char ch); + int Ascent(Font &font_); + int Descent(Font &font_); + int InternalLeading(Font &font_) {return 0;} + int ExternalLeading(Font &font_); + int Height(Font &font_); + int AverageCharWidth(Font &font_) {return WidthChar(font_,'n');} + + int SetPalette(Palette *,bool) {return 0;} + void SetClip(PRectangle rc); + void FlushCachedState() {painter -> flush();} + + void SetUnicodeMode(bool unicodeMode_) {unicodeMode = unicodeMode_;} + void SetDBCSMode(int codePage) {} + + void DrawXPM(PRectangle rc,const XPM *xpm); + +private: + void commonInit(QPainter *painter_,bool mypainter_); + bool setFont(Font &font_); + QString convertText(const char *s,int len); + static QRgb convertQRgb(const ColourAllocated &col, unsigned alpha); + static QColor convertQColor(const ColourAllocated &col, + unsigned alpha = 0xff); + + bool unicodeMode; + bool mypainter; + QPainter *painter; +}; + +Surface *Surface::Allocate() +{ + return new SurfaceImpl; +} + +SurfaceImpl::SurfaceImpl() : unicodeMode(false), mypainter(false), painter(0) +{ +} + +SurfaceImpl::~SurfaceImpl() +{ + Release(); +} + +void SurfaceImpl::commonInit(QPainter *painter_,bool mypainter_) +{ + Release(); + + painter = painter_; + mypainter = mypainter_; +} + +void SurfaceImpl::Init(WindowID) +{ + commonInit(new QPainter(new QWidget()),true); +} + +void SurfaceImpl::Init(SurfaceID sid,WindowID) +{ + commonInit(PSurface(sid),false); +} + +void SurfaceImpl::InitPixMap(int width,int height,Surface *,WindowID) +{ + commonInit(new QPainter(new QPixmap(width,height)),true); +} + +void SurfaceImpl::Release() +{ + if (painter && mypainter) + { + QPaintDevice *pd = painter -> device(); + + delete painter; + + delete pd; + } + + painter = 0; +} + +void SurfaceImpl::PenColour(ColourAllocated fore) +{ + painter -> setPen(convertQColor(fore)); +} + +void SurfaceImpl::Polygon(Point *pts,int npts,ColourAllocated fore, + ColourAllocated back) +{ + QPointArray qpts(npts); + + for (int i = 0; i < npts; ++i) + qpts.setPoint(i,pts[i].x,pts[i].y); + + painter -> setPen(convertQColor(fore)); + painter -> setBrush(convertQColor(back)); + painter -> drawPolygon(qpts); +} + +void SurfaceImpl::RectangleDraw(PRectangle rc,ColourAllocated fore, + ColourAllocated back) +{ + painter -> setPen(convertQColor(fore)); + painter -> setBrush(convertQColor(back)); + painter -> drawRect(rc.left,rc.top, + rc.right - rc.left,rc.bottom - rc.top); +} + +void SurfaceImpl::FillRectangle(PRectangle rc,ColourAllocated back) +{ + painter -> setPen(Qt::NoPen); + painter -> setBrush(convertQColor(back)); + painter -> drawRect(rc.left,rc.top, + rc.right - rc.left,rc.bottom - rc.top); +} + +void SurfaceImpl::FillRectangle(PRectangle rc,Surface &surfacePattern) +{ + SurfaceImpl &si = static_cast<SurfaceImpl &>(surfacePattern); + QPixmap *pm = static_cast<QPixmap *>(si.painter -> device()); + + if (pm) + { + QBrush brsh(Qt::black,*pm); + + painter -> setPen(Qt::NoPen); + painter -> setBrush(brsh); + painter -> drawRect(rc.left,rc.top, + rc.right - rc.left,rc.bottom - rc.top); + } + else + FillRectangle(rc,ColourAllocated(0)); +} + +void SurfaceImpl::RoundedRectangle(PRectangle rc,ColourAllocated fore, + ColourAllocated back) +{ + painter -> setPen(convertQColor(fore)); + painter -> setBrush(convertQColor(back)); + painter -> drawRoundRect(rc.left,rc.top, + rc.right - rc.left,rc.bottom - rc.top); +} + +void SurfaceImpl::AlphaRectangle(PRectangle rc, int cornerSize, + ColourAllocated fill, int alphaFill, ColourAllocated outline, + int alphaOutline, int) +{ + int w = rc.right - rc.left; + int h = rc.bottom - rc.top; + + QImage img(w, h, 32); + + img.fill(convertQRgb(fill, alphaFill)); + img.setAlphaBuffer(TRUE); + + // Assume that "cornerSize" means outline width. + if (cornerSize > 0) + { + QRgb oline = convertQRgb(outline, alphaOutline); + + int linew = cornerSize; + + if (linew > w) + linew = w; + + for (int y = 0; y < h; ++y) + { + int x; + + if (y < cornerSize || y >= (h - cornerSize)) + for (x = 0; x < w; ++x) + img.setPixel(x, y, oline); + else + { + for (x = 0; x < linew; ++x) + img.setPixel(x, y, oline); + + for (x = w - 1; x >= w - linew; --x) + img.setPixel(x, y, oline); + } + } + } + + painter->drawImage(rc.left, rc.top, img); +} + +void SurfaceImpl::Ellipse(PRectangle rc,ColourAllocated fore, + ColourAllocated back) +{ + painter -> setPen(convertQColor(fore)); + painter -> setBrush(convertQColor(back)); + painter -> drawEllipse(rc.left,rc.top, + rc.right - rc.left,rc.bottom - rc.top); +} + +void SurfaceImpl::Copy(PRectangle rc,Point from,Surface &surfaceSource) +{ + SurfaceImpl &si = static_cast<SurfaceImpl &>(surfaceSource); + QPaintDevice *spd = si.painter -> device(); + QPaintDevice *dpd = painter -> device(); + + if (spd && dpd) + { + si.painter -> end(); + painter -> end(); + + bitBlt(dpd,rc.left,rc.top,spd,from.x,from.y, + rc.right - rc.left,rc.bottom - rc.top); + + si.painter -> begin(spd); + painter -> begin(dpd); + } +} + +void SurfaceImpl::DrawTextNoClip(PRectangle rc,Font &font_,int ybase, + const char *s,int len,ColourAllocated fore, + ColourAllocated back) +{ + FillRectangle(rc,back); + DrawTextTransparent(rc,font_,ybase,s,len,fore); +} + +void SurfaceImpl::DrawTextClipped(PRectangle rc,Font &font_,int ybase, + const char *s,int len,ColourAllocated fore, + ColourAllocated back) +{ + SetClip(rc); + DrawTextNoClip(rc,font_,ybase,s,len,fore,back); + painter -> setClipping(FALSE); +} + +void SurfaceImpl::DrawTextTransparent(PRectangle rc,Font &font_,int ybase, + const char *s,int len, + ColourAllocated fore) +{ + QString qs = convertText(s,len); + + setFont(font_); + painter -> setPen(convertQColor(fore)); + painter -> drawText(rc.left,ybase,qs); +} + +void SurfaceImpl::DrawXPM(PRectangle rc,const XPM *xpm) +{ + int x, y; + const QPixmap &qpm = xpm -> Pixmap(); + + x = rc.left + (rc.Width() - qpm.width()) / 2; + y = rc.top + (rc.Height() - qpm.height()) / 2; + + painter -> drawPixmap(x,y,qpm); +} + +void SurfaceImpl::MeasureWidths(Font &font_,const char *s,int len, + int *positions) +{ + if (setFont(font_)) + { + int totalWidth = 0, ui = 0; + QString qs = convertText(s,len); + QFontMetrics fm = painter -> fontMetrics(); + + for (int i = 0; i < qs.length(); ++i) + { + totalWidth += fm.width(qs[i]); + + int l = (unicodeMode ? QString(qs[i]).utf8().length() : 1); + + while (l--) + positions[ui++] = totalWidth; + } + } + else + for (int i = 0; i < len; ++i) + positions[i] = i + 1; +} + +int SurfaceImpl::WidthText(Font &font_,const char *s,int len) +{ + if (setFont(font_)) + { + QString qs = convertText(s,len); + + return painter -> fontMetrics().width(qs,qs.length()); + } + + return 1; +} + +int SurfaceImpl::WidthChar(Font &font_,char ch) +{ + if (setFont(font_)) + return painter -> fontMetrics().width(ch); + + return 1; +} + +int SurfaceImpl::Ascent(Font &font_) +{ + if (setFont(font_)) + return painter -> fontMetrics().ascent(); + + return 1; +} + +int SurfaceImpl::Descent(Font &font_) +{ + // Qt doesn't include the baseline in the descent, so add it. + + if (setFont(font_)) + return painter -> fontMetrics().descent() + 1; + + return 1; +} + +int SurfaceImpl::ExternalLeading(Font &font_) +{ + if (setFont(font_)) + return painter -> fontMetrics().leading(); + + return 0; +} + +int SurfaceImpl::Height(Font &font_) +{ + if (setFont(font_)) + return painter -> fontMetrics().height(); + + return 1; +} + +void SurfaceImpl::SetClip(PRectangle rc) +{ + painter -> setClipRect(rc.left,rc.top, + rc.right - rc.left,rc.bottom - rc.top); +} + +// Set the painter font if there is one. Return true if it was set. +bool SurfaceImpl::setFont(Font &font_) +{ + QFont *f = PFont(font_.GetID()); + + if (f) + painter -> setFont(*f); + + return f; +} + +// Convert a Scintilla string to a Qt Unicode string. +QString SurfaceImpl::convertText(const char *s,int len) +{ + if (unicodeMode) + return QString::fromUtf8(s,len); + + QString qs; + + qs.setLatin1(s,len); + + return qs; +} + +// Convert a Scintilla colour and alpha component to a Qt QRgb. +QRgb SurfaceImpl::convertQRgb(const ColourAllocated &col, unsigned alpha) +{ + long c = col.AsLong(); + + unsigned r = c & 0xff; + unsigned g = (c >> 8) & 0xff; + unsigned b = (c >> 16) & 0xff; + + QRgb rgba = (alpha << 24) | (r << 16) | (g << 8) | b; + + return rgba; +} + +// Convert a Scintilla colour, and optional alpha component, to a Qt QColor. +QColor SurfaceImpl::convertQColor(const ColourAllocated &col, unsigned alpha) +{ + return QColor(convertQRgb(col, alpha)); +} + + +// Window (widget) management. +Window::~Window() +{ +} + +void Window::Destroy() +{ + QWidget *w = PWindow(id); + + if (w) + { + delete w; + id = 0; + } +} + +bool Window::HasFocus() +{ + return PWindow(id) -> hasFocus(); +} + +PRectangle Window::GetPosition() +{ + QWidget *w = PWindow(id); + + // Before any size allocated pretend its big enough not to be scrolled. + PRectangle rc(0,0,5000,5000); + + if (w) + { + const QRect &r = w -> geometry(); + + rc.left = r.left(); + rc.top = r.top(); + rc.right = r.right() + 1; + rc.bottom = r.bottom() + 1; + } + + return rc; +} + +void Window::SetPosition(PRectangle rc) +{ + PWindow(id) -> setGeometry(rc.left,rc.top, + rc.right - rc.left,rc.bottom - rc.top); +} + +void Window::SetPositionRelative(PRectangle rc,Window relativeTo) +{ + QWidget *rel = PWindow(relativeTo.id); + QPoint pos = rel -> mapToGlobal(rel -> pos()); + + int x = pos.x() + rc.left; + int y = pos.y() + rc.top; + + PWindow(id) -> setGeometry(x,y,rc.right - rc.left,rc.bottom - rc.top); +} + +PRectangle Window::GetClientPosition() +{ + return GetPosition(); +} + +void Window::Show(bool show) +{ + QWidget *w = PWindow(id); + + if (show) + w -> show(); + else + w -> hide(); +} + +void Window::InvalidateAll() +{ + QWidget *w = PWindow(id); + + if (w) + w -> update(); +} + +void Window::InvalidateRectangle(PRectangle rc) +{ + QWidget *w = PWindow(id); + + if (w) + w -> update(rc.left,rc.top, + rc.right - rc.left,rc.bottom - rc.top); +} + +void Window::SetFont(Font &font) +{ + PWindow(id) -> setFont(*PFont(font.GetID())); +} + +void Window::SetCursor(Cursor curs) +{ + Qt::CursorShape qc; + + switch (curs) + { + case cursorText: + qc = Qt::IbeamCursor; + break; + + case cursorUp: + qc = Qt::UpArrowCursor; + break; + + case cursorWait: + qc = Qt::WaitCursor; + break; + + case cursorHoriz: + qc = Qt::SizeHorCursor; + break; + + case cursorVert: + qc = Qt::SizeVerCursor; + break; + + case cursorHand: + qc = Qt::PointingHandCursor; + break; + + default: + qc = Qt::ArrowCursor; + } + + PWindow(id) -> setCursor(qc); +} + +void Window::SetTitle(const char *s) +{ + PWindow(id) -> setCaption(s); +} + + +// Menu management. +Menu::Menu() : id(0) +{ +} + +void Menu::CreatePopUp() +{ + Destroy(); + id = new QPopupMenu(); +} + +void Menu::Destroy() +{ + QPopupMenu *m = PMenu(id); + + if (m) + { + delete m; + id = 0; + } +} + +void Menu::Show(Point pt,Window &) +{ + PMenu(id) -> popup(QPoint(pt.x,pt.y)); +} + + +class DynamicLibraryImpl : public DynamicLibrary +{ +public: + DynamicLibraryImpl(const char *modulePath) + { + m = new QLibrary(modulePath); + m -> load(); + } + + virtual ~DynamicLibraryImpl() + { + if (m) + delete m; + } + + virtual Function FindFunction(const char *name) + { + if (m) + return m -> resolve(name); + + return 0; + } + + virtual bool IsValid() + { + return m && m -> isLoaded(); + } + +private: + QLibrary* m; +}; + +DynamicLibrary *DynamicLibrary::Load(const char *modulePath) +{ + return new DynamicLibraryImpl(modulePath); +} + + +// Elapsed time. This implementation assumes that the maximum elapsed time is +// less than 48 hours. +ElapsedTime::ElapsedTime() +{ + QTime now = QTime::currentTime(); + + bigBit = now.hour() * 60 * 60 + now.minute() * 60 + now.second(); + littleBit = now.msec(); +} + +double ElapsedTime::Duration(bool reset) +{ + long endBigBit, endLittleBit; + QTime now = QTime::currentTime(); + + endBigBit = now.hour() * 60 * 60 + now.minute() * 60 + now.second(); + endLittleBit = now.msec(); + + double duration = endBigBit - bigBit; + + if (duration < 0 || (duration == 0 && endLittleBit < littleBit)) + duration += 24 * 60 * 60; + + duration += (endLittleBit - littleBit) / 1000.0; + + if (reset) + { + bigBit = endBigBit; + littleBit = endLittleBit; + } + + return duration; +} + + +// Manage system wide parameters. +ColourDesired Platform::Chrome() +{ + return ColourDesired(0xe0,0xe0,0xe0); +} + +ColourDesired Platform::ChromeHighlight() +{ + return ColourDesired(0xff,0xff,0xff); +} + +const char *Platform::DefaultFont() +{ + return QApplication::font().family(); +} + +int Platform::DefaultFontSize() +{ + return QApplication::font().pointSize(); +} + +unsigned int Platform::DoubleClickTime() +{ + return QApplication::doubleClickInterval(); +} + +bool Platform::MouseButtonBounce() +{ + return true; +} + +void Platform::DebugDisplay(const char *s) +{ + qDebug("%s",s); +} + +bool Platform::IsKeyDown(int) +{ + return false; +} + +long Platform::SendScintilla(WindowID w,unsigned int msg,unsigned long wParam, + long lParam) +{ + return static_cast<QextScintillaBase *>(PWindow(w) -> parentWidget()) -> SendScintilla(msg,wParam,lParam); +} + +long Platform::SendScintillaPointer(WindowID w,unsigned int msg, + unsigned long wParam,void *lParam) +{ + return static_cast<QextScintillaBase *>(PWindow(w) -> parentWidget()) -> SendScintilla(msg,wParam,reinterpret_cast<long>(lParam)); +} + +bool Platform::IsDBCSLeadByte(int codepage,char ch) +{ + // We don't support DBCS. + return false; +} + +int Platform::DBCSCharLength(int codePage,const char *s) +{ + // We don't support DBCS. + return 1; +} + +int Platform::DBCSCharMaxLength() +{ + // We don't support DBCS. + return 2; +} + +int Platform::Minimum(int a,int b) +{ + return (a < b) ? a : b; +} + +int Platform::Maximum(int a,int b) +{ + return (a > b) ? a : b; +} + +int Platform::Clamp(int val,int minVal,int maxVal) +{ + if (val > maxVal) + val = maxVal; + + if (val < minVal) + val = minVal; + + return val; +} + + +//#define TRACE + +#ifdef TRACE +void Platform::DebugPrintf(const char *format, ...) +{ + char buffer[2000]; + va_list pArguments; + + va_start(pArguments,format); + vsprintf(buffer,format,pArguments); + va_end(pArguments); + + DebugDisplay(buffer); +} +#else +void Platform::DebugPrintf(const char *, ...) +{ +} +#endif + +static bool assertionPopUps = true; + +bool Platform::ShowAssertionPopUps(bool assertionPopUps_) +{ + bool ret = assertionPopUps; + + assertionPopUps = assertionPopUps_; + + return ret; +} + +void Platform::Assert(const char *c,const char *file,int line) +{ + qFatal("Assertion [%s] failed at %s %d\n",c,file,line); +} |