git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository@125 f5eea248-9336-0410-98b8-ebc06183d4e3
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// Scintilla source code edit control
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/** @file Platform.h
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** Interface to platform facilities. Also includes some basic utilities.
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** Implemented in PlatGTK.cxx for GTK+/Linux, PlatWin.cxx for Windows, and PlatWX.cxx for wxWindows.
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**/
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// Copyright 1998-2003 by Neil Hodgson <neilh@scintilla.org>
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// The License.txt file describes the conditions under which this software may be distributed.
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#ifndef PLATFORM_H
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#define PLATFORM_H
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// PLAT_GTK = GTK+ on Linux or Win32
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// PLAT_GTK_WIN32 is defined additionally when running PLAT_GTK under Win32
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// PLAT_WIN = Win32 API on Win32 OS
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// PLAT_WX is wxWindows on any supported platform
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#define PLAT_GTK 0
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#define PLAT_GTK_WIN32 0
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#define PLAT_WIN 0
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#define PLAT_WX 0
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#define PLAT_FOX 0
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#if defined(FOX)
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#undef PLAT_FOX
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#define PLAT_FOX 1
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#elif defined(__WX__)
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#undef PLAT_WX
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#define PLAT_WX 1
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#elif defined(GTK)
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#undef PLAT_GTK
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#define PLAT_GTK 1
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#ifdef _MSC_VER
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#undef PLAT_GTK_WIN32
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#define PLAT_GTK_WIN32 1
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#endif
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#else
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#undef PLAT_WIN
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#define PLAT_WIN 1
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#endif
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// Underlying the implementation of the platform classes are platform specific types.
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// Sometimes these need to be passed around by client code so they are defined here
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typedef void *FontID;
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typedef void *SurfaceID;
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typedef void *WindowID;
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typedef void *MenuID;
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typedef void *TickerID;
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typedef void *Function;
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typedef void *IdlerID;
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/**
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* A geometric point class.
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* Point is exactly the same as the Win32 POINT and GTK+ GdkPoint so can be used interchangeably.
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*/
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class Point {
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public:
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int x;
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int y;
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explicit Point(int x_=0, int y_=0) : x(x_), y(y_) {
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}
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// Other automatically defined methods (assignment, copy constructor, destructor) are fine
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static Point FromLong(long lpoint);
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};
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/**
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* A geometric rectangle class.
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* PRectangle is exactly the same as the Win32 RECT so can be used interchangeably.
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* PRectangles contain their top and left sides, but not their right and bottom sides.
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*/
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class PRectangle {
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public:
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int left;
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int top;
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int right;
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int bottom;
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PRectangle(int left_=0, int top_=0, int right_=0, int bottom_ = 0) :
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left(left_), top(top_), right(right_), bottom(bottom_) {
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}
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// Other automatically defined methods (assignment, copy constructor, destructor) are fine
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bool operator==(PRectangle &rc) {
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return (rc.left == left) && (rc.right == right) &&
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(rc.top == top) && (rc.bottom == bottom);
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}
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bool Contains(Point pt) {
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return (pt.x >= left) && (pt.x <= right) &&
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(pt.y >= top) && (pt.y <= bottom);
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}
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bool Contains(PRectangle rc) {
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return (rc.left >= left) && (rc.right <= right) &&
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(rc.top >= top) && (rc.bottom <= bottom);
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}
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bool Intersects(PRectangle other) {
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return (right > other.left) && (left < other.right) &&
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(bottom > other.top) && (top < other.bottom);
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}
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void Move(int xDelta, int yDelta) {
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left += xDelta;
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top += yDelta;
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right += xDelta;
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bottom += yDelta;
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}
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int Width() { return right - left; }
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int Height() { return bottom - top; }
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};
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/**
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* In some circumstances, including Win32 in paletted mode and GTK+, each colour
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* must be allocated before use. The desired colours are held in the ColourDesired class,
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* and after allocation the allocation entry is stored in the ColourAllocated class. In other
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* circumstances, such as Win32 in true colour mode, the allocation process just copies
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* the RGB values from the desired to the allocated class.
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* As each desired colour requires allocation before it can be used, the ColourPair class
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* holds both a ColourDesired and a ColourAllocated
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* The Palette class is responsible for managing the palette of colours which contains a
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* list of ColourPair objects and performs the allocation.
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*/
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/**
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* Holds a desired RGB colour.
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*/
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class ColourDesired {
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long co;
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public:
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ColourDesired(long lcol=0) {
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co = lcol;
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}
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ColourDesired(unsigned int red, unsigned int green, unsigned int blue) {
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Set(red, green, blue);
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}
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bool operator==(const ColourDesired &other) const {
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return co == other.co;
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}
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void Set(long lcol) {
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co = lcol;
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}
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void Set(unsigned int red, unsigned int green, unsigned int blue) {
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co = red | (green << 8) | (blue << 16);
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}
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static inline unsigned int ValueOfHex(const char ch) {
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if (ch >= '0' && ch <= '9')
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return ch - '0';
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else if (ch >= 'A' && ch <= 'F')
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return ch - 'A' + 10;
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else if (ch >= 'a' && ch <= 'f')
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return ch - 'a' + 10;
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else
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return 0;
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}
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void Set(const char *val) {
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if (*val == '#') {
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val++;
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}
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unsigned int r = ValueOfHex(val[0]) * 16 + ValueOfHex(val[1]);
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unsigned int g = ValueOfHex(val[2]) * 16 + ValueOfHex(val[3]);
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unsigned int b = ValueOfHex(val[4]) * 16 + ValueOfHex(val[5]);
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Set(r, g, b);
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}
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long AsLong() const {
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return co;
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}
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unsigned int GetRed() {
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return co & 0xff;
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}
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unsigned int GetGreen() {
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return (co >> 8) & 0xff;
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}
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unsigned int GetBlue() {
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return (co >> 16) & 0xff;
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}
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};
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/**
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* Holds an allocated RGB colour which may be an approximation to the desired colour.
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*/
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class ColourAllocated {
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long coAllocated;
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public:
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ColourAllocated(long lcol=0) {
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coAllocated = lcol;
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}
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void Set(long lcol) {
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coAllocated = lcol;
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}
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long AsLong() const {
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return coAllocated;
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}
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};
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/**
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* Colour pairs hold a desired colour and an allocated colour.
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*/
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struct ColourPair {
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ColourDesired desired;
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ColourAllocated allocated;
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ColourPair(ColourDesired desired_=ColourDesired(0,0,0)) {
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desired = desired_;
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allocated.Set(desired.AsLong());
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}
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void Copy() {
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allocated.Set(desired.AsLong());
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}
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};
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class Window; // Forward declaration for Palette
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/**
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* Colour palette management.
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*/
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class Palette {
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int used;
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int size;
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ColourPair *entries;
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#if PLAT_GTK
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void *allocatedPalette; // GdkColor *
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int allocatedLen;
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#endif
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// Private so Palette objects can not be copied
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Palette(const Palette &) {}
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Palette &operator=(const Palette &) { return *this; }
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public:
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#if PLAT_WIN
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void *hpal;
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#endif
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bool allowRealization;
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Palette();
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~Palette();
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void Release();
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/**
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* This method either adds a colour to the list of wanted colours (want==true)
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* or retrieves the allocated colour back to the ColourPair.
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* This is one method to make it easier to keep the code for wanting and retrieving in sync.
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*/
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void WantFind(ColourPair &cp, bool want);
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void Allocate(Window &w);
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};
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/**
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* Font management.
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*/
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class Font {
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protected:
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FontID id;
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#if PLAT_WX
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int ascent;
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#endif
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// Private so Font objects can not be copied
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Font(const Font &) {}
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Font &operator=(const Font &) { id=0; return *this; }
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public:
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Font();
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virtual ~Font();
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virtual void Create(const char *faceName, int characterSet, int size,
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bool bold, bool italic, bool extraFontFlag=false);
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virtual void Release();
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FontID GetID() { return id; }
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// Alias another font - caller guarantees not to Release
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void SetID(FontID id_) { id = id_; }
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friend class Surface;
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friend class SurfaceImpl;
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};
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/**
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* A surface abstracts a place to draw.
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*/
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class Surface {
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private:
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// Private so Surface objects can not be copied
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Surface(const Surface &) {}
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Surface &operator=(const Surface &) { return *this; }
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public:
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Surface() {};
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virtual ~Surface() {};
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static Surface *Allocate();
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virtual void Init(WindowID wid)=0;
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virtual void Init(SurfaceID sid, WindowID wid)=0;
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virtual void InitPixMap(int width, int height, Surface *surface_, WindowID wid)=0;
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virtual void Release()=0;
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virtual bool Initialised()=0;
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virtual void PenColour(ColourAllocated fore)=0;
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virtual int LogPixelsY()=0;
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virtual int DeviceHeightFont(int points)=0;
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virtual void MoveTo(int x_, int y_)=0;
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virtual void LineTo(int x_, int y_)=0;
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virtual void Polygon(Point *pts, int npts, ColourAllocated fore, ColourAllocated back)=0;
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virtual void RectangleDraw(PRectangle rc, ColourAllocated fore, ColourAllocated back)=0;
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virtual void FillRectangle(PRectangle rc, ColourAllocated back)=0;
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virtual void FillRectangle(PRectangle rc, Surface &surfacePattern)=0;
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virtual void RoundedRectangle(PRectangle rc, ColourAllocated fore, ColourAllocated back)=0;
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virtual void AlphaRectangle(PRectangle rc, int cornerSize, ColourAllocated fill, int alphaFill,
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ColourAllocated outline, int alphaOutline, int flags)=0;
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virtual void Ellipse(PRectangle rc, ColourAllocated fore, ColourAllocated back)=0;
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virtual void Copy(PRectangle rc, Point from, Surface &surfaceSource)=0;
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virtual void DrawTextNoClip(PRectangle rc, Font &font_, int ybase, const char *s, int len, ColourAllocated fore, ColourAllocated back)=0;
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virtual void DrawTextClipped(PRectangle rc, Font &font_, int ybase, const char *s, int len, ColourAllocated fore, ColourAllocated back)=0;
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virtual void DrawTextTransparent(PRectangle rc, Font &font_, int ybase, const char *s, int len, ColourAllocated fore)=0;
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virtual void MeasureWidths(Font &font_, const char *s, int len, int *positions)=0;
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virtual int WidthText(Font &font_, const char *s, int len)=0;
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virtual int WidthChar(Font &font_, char ch)=0;
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virtual int Ascent(Font &font_)=0;
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virtual int Descent(Font &font_)=0;
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virtual int InternalLeading(Font &font_)=0;
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virtual int ExternalLeading(Font &font_)=0;
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virtual int Height(Font &font_)=0;
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virtual int AverageCharWidth(Font &font_)=0;
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virtual int SetPalette(Palette *pal, bool inBackGround)=0;
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virtual void SetClip(PRectangle rc)=0;
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virtual void FlushCachedState()=0;
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virtual void SetUnicodeMode(bool unicodeMode_)=0;
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virtual void SetDBCSMode(int codePage)=0;
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};
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/**
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* A simple callback action passing one piece of untyped user data.
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*/
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typedef void (*CallBackAction)(void*);
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/**
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* Class to hide the details of window manipulation.
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* Does not own the window which will normally have a longer life than this object.
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*/
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class Window {
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protected:
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WindowID id;
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public:
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Window() : id(0), cursorLast(cursorInvalid) {}
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Window(const Window &source) : id(source.id), cursorLast(cursorInvalid) {}
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virtual ~Window();
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Window &operator=(WindowID id_) {
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id = id_;
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return *this;
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}
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WindowID GetID() const { return id; }
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bool Created() const { return id != 0; }
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void Destroy();
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bool HasFocus();
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PRectangle GetPosition();
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void SetPosition(PRectangle rc);
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void SetPositionRelative(PRectangle rc, Window relativeTo);
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PRectangle GetClientPosition();
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void Show(bool show=true);
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void InvalidateAll();
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void InvalidateRectangle(PRectangle rc);
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virtual void SetFont(Font &font);
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enum Cursor { cursorInvalid, cursorText, cursorArrow, cursorUp, cursorWait, cursorHoriz, cursorVert, cursorReverseArrow, cursorHand };
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void SetCursor(Cursor curs);
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void SetTitle(const char *s);
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private:
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Cursor cursorLast;
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};
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/**
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* Listbox management.
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*/
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class ListBox : public Window {
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public:
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ListBox();
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virtual ~ListBox();
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static ListBox *Allocate();
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virtual void SetFont(Font &font)=0;
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virtual void Create(Window &parent, int ctrlID, Point location, int lineHeight_, bool unicodeMode_)=0;
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virtual void SetAverageCharWidth(int width)=0;
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virtual void SetVisibleRows(int rows)=0;
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virtual int GetVisibleRows() const=0;
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virtual PRectangle GetDesiredRect()=0;
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virtual int CaretFromEdge()=0;
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virtual void Clear()=0;
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virtual void Append(char *s, int type = -1)=0;
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virtual int Length()=0;
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virtual void Select(int n)=0;
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virtual int GetSelection()=0;
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virtual int Find(const char *prefix)=0;
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virtual void GetValue(int n, char *value, int len)=0;
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virtual void RegisterImage(int type, const char *xpm_data)=0;
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virtual void ClearRegisteredImages()=0;
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virtual void SetDoubleClickAction(CallBackAction, void *)=0;
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virtual void SetList(const char* list, char separator, char typesep)=0;
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};
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/**
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* Menu management.
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*/
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class Menu {
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MenuID id;
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public:
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Menu();
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MenuID GetID() { return id; }
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void CreatePopUp();
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void Destroy();
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void Show(Point pt, Window &w);
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};
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class ElapsedTime {
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long bigBit;
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long littleBit;
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public:
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ElapsedTime();
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double Duration(bool reset=false);
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||||
};
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||||
|
||||
/**
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||||
* Dynamic Library (DLL/SO/...) loading
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||||
*/
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||||
class DynamicLibrary {
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||||
public:
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||||
virtual ~DynamicLibrary() {};
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||||
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||||
/// @return Pointer to function "name", or NULL on failure.
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virtual Function FindFunction(const char *name) = 0;
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||||
|
||||
/// @return true if the library was loaded successfully.
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||||
virtual bool IsValid() = 0;
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||||
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||||
/// @return An instance of a DynamicLibrary subclass with "modulePath" loaded.
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static DynamicLibrary *Load(const char *modulePath);
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||||
};
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||||
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||||
/**
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* Platform class used to retrieve system wide parameters such as double click speed
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* and chrome colour. Not a creatable object, more of a module with several functions.
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||||
*/
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||||
class Platform {
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||||
// Private so Platform objects can not be copied
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||||
Platform(const Platform &) {}
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||||
Platform &operator=(const Platform &) { return *this; }
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||||
public:
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||||
// Should be private because no new Platforms are ever created
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||||
// but gcc warns about this
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Platform() {}
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||||
~Platform() {}
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||||
static ColourDesired Chrome();
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||||
static ColourDesired ChromeHighlight();
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||||
static const char *DefaultFont();
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||||
static int DefaultFontSize();
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||||
static unsigned int DoubleClickTime();
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||||
static bool MouseButtonBounce();
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||||
static void DebugDisplay(const char *s);
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||||
static bool IsKeyDown(int key);
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||||
static long SendScintilla(
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||||
WindowID w, unsigned int msg, unsigned long wParam=0, long lParam=0);
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||||
static long SendScintillaPointer(
|
||||
WindowID w, unsigned int msg, unsigned long wParam=0, void *lParam=0);
|
||||
static bool IsDBCSLeadByte(int codePage, char ch);
|
||||
static int DBCSCharLength(int codePage, const char *s);
|
||||
static int DBCSCharMaxLength();
|
||||
|
||||
// These are utility functions not really tied to a platform
|
||||
static int Minimum(int a, int b);
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||||
static int Maximum(int a, int b);
|
||||
// Next three assume 16 bit shorts and 32 bit longs
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||||
static long LongFromTwoShorts(short a,short b) {
|
||||
return (a) | ((b) << 16);
|
||||
}
|
||||
static short HighShortFromLong(long x) {
|
||||
return static_cast<short>(x >> 16);
|
||||
}
|
||||
static short LowShortFromLong(long x) {
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||||
return static_cast<short>(x & 0xffff);
|
||||
}
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||||
static void DebugPrintf(const char *format, ...);
|
||||
static bool ShowAssertionPopUps(bool assertionPopUps_);
|
||||
static void Assert(const char *c, const char *file, int line);
|
||||
static int Clamp(int val, int minVal, int maxVal);
|
||||
};
|
||||
|
||||
#ifdef NDEBUG
|
||||
#define PLATFORM_ASSERT(c) ((void)0)
|
||||
#else
|
||||
#define PLATFORM_ASSERT(c) ((c) ? (void)(0) : Platform::Assert(#c, __FILE__, __LINE__))
|
||||
#endif
|
||||
|
||||
// Shut up annoying Visual C++ warnings:
|
||||
#ifdef _MSC_VER
|
||||
#pragma warning(disable: 4244 4309 4514 4710)
|
||||
#endif
|
||||
|
||||
#endif
|
||||
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Reference in New Issue
Block a user