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Diffstat (limited to 'os-plugins/plugins/vmchooser/src/fltk-2/include/fltk/draw.h')
| -rw-r--r-- | os-plugins/plugins/vmchooser/src/fltk-2/include/fltk/draw.h | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/os-plugins/plugins/vmchooser/src/fltk-2/include/fltk/draw.h b/os-plugins/plugins/vmchooser/src/fltk-2/include/fltk/draw.h new file mode 100644 index 00000000..5eadfcd2 --- /dev/null +++ b/os-plugins/plugins/vmchooser/src/fltk-2/include/fltk/draw.h @@ -0,0 +1,232 @@ +// "$Id: draw.h 5939 2007-08-02 14:19:28Z spitzak $" +// +// Copyright 1998-2006 by Bill Spitzak and others. +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Library General Public +// License as published by the Free Software Foundation; either +// version 2 of the License, or (at your option) any later version. +// +// This library is distributed 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 +// Library General Public License for more details. +// +// You should have received a copy of the GNU Library General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 +// USA. +// +// Please report all bugs and problems to "fltk-bugs@fltk.org". + +/*! \file + + The FLTK drawing library, used by all widgets to draw themselves. + + These functions can only be called when FLTK is setup to draw + things. This is only true: + - Inside the Widget::draw() virtual function. + - Inside the Symbol::draw() virtual function. + - After calling Widget::make_current(), before calling wait() or flush(). + Calling the drawing functions at other times produces undefined results, + including crashing. + +*/ + +#ifndef fltk_draw_h +#define fltk_draw_h + +#include "Flags.h" // for alignment values +#include "Color.h" +#include "Rectangle.h" +#include "PixelType.h" + +namespace fltk { + +struct Font; +class Style; + +class FL_API GSave { + void* data[4]; // hopefully big enough for everybody... + public: + GSave(); + ~GSave(); +}; + +/// \name Transformation +//@{ +FL_API void push_matrix(); +FL_API void pop_matrix(); +FL_API void scale(float x, float y); +FL_API void scale(float x); +FL_API void translate(float x, float y); +FL_API void translate(int x, int y); +FL_API void rotate(float d); +FL_API void concat(float, float, float, float, float, float); +FL_API void load_identity(); + +// get and use transformed positions: +FL_API void transform(float& x, float& y); +FL_API void transform_distance(float& x, float& y); +FL_API void transform(int& x, int& y); +FL_API void transform(const Rectangle& from, Rectangle& to); +FL_API void transform(int& x, int& y, int& w, int& h); +//@} + +/// \name Clipping +//@{ +FL_API void push_clip(const Rectangle&); +//! Same as push_clip(Rectangle(x,y,w,h)) but faster: +FL_API void push_clip(int X,int Y, int W, int H); +FL_API void clipout(const Rectangle&); +FL_API void pop_clip(); +FL_API void push_no_clip(); +FL_API bool not_clipped(const Rectangle&); +FL_API int intersect_with_clip(Rectangle&); +//@} + +FL_API void setcolor(Color); +FL_API void setcolor_alpha(Color, float alpha); +extern FL_API Color current_color_; +inline Color getcolor() {return current_color_;} + +extern FL_API Color current_bgcolor_; +inline void setbgcolor(Color c) {current_bgcolor_ = c;} +inline Color getbgcolor() {return current_bgcolor_;} + +extern FL_API const Style* drawstyle_; +void FL_API drawstyle(const Style* s, Flags); +inline const Style* drawstyle() {return drawstyle_;} + +extern FL_API Flags drawflags_; +inline void setdrawflags(Flags f) {drawflags_ = f;} +inline Flags drawflags() {return drawflags_;} +inline Flags drawflags(Flags f) {return drawflags_ & f;} + +// line type: +FL_API void line_style(int, float width=0, const char* dashes=0); +enum { + SOLID = 0, + DASH = 1, + DOT = 2, + DASHDOT = 3, + DASHDOTDOT = 4, + + CAP_FLAT = 0x100, + CAP_ROUND = 0x200, + CAP_SQUARE = 0x300, + + JOIN_MITER = 0x1000, + JOIN_ROUND = 0x2000, + JOIN_BEVEL = 0x3000 +}; +extern FL_API int line_style_; +inline FL_API int line_style() {return line_style_;} +extern FL_API float line_width_; +inline FL_API float line_width() {return line_width_;} +extern FL_API const char* line_dashes_; +inline FL_API const char* line_dashes() {return line_dashes_;} + +/// \name Path construction +//@{ +FL_API void newpath(); +FL_API void addvertex(float x, float y); +FL_API void addvertex(int x, int y); +FL_API void addvertices(int n, const float v[][2]); +FL_API void addvertices(int n, const int v[][2]); +FL_API void addvertices_transformed(int n, const float v[][2]); +FL_API void addcurve(float,float, float,float, float,float, float,float); +FL_API void addarc(float x,float y,float w,float h, float a1, float a2); +FL_API void addpie(const Rectangle& r, float a, float a2); +FL_API void addchord(const Rectangle& r,float a,float a2); +FL_API void closepath(); +//@} + +/// \name Shapes and lines +//@{ +FL_API void strokepath(); +FL_API void fillpath(); +FL_API void fillstrokepath(Color); + +FL_API void fillrect(int, int, int, int); +inline void fillrect(const Rectangle& r) {fillrect(r.x(),r.y(),r.w(),r.h());} +FL_API void strokerect(int, int, int, int); +inline void strokerect(const Rectangle& r) {strokerect(r.x(),r.y(),r.w(),r.h());} +FL_API void drawline(int x0, int y0, int x1, int y1); +FL_API void drawline(float x0, float y0, float x1, float y1); +FL_API void drawpoint(int x, int y); +FL_API void drawpoint(float x, float y); +//@} + +/// \name Text +//@{ +FL_API void setfont(Font*, float size); +FL_API void setfont(const char*, float size); +FL_API void setfont(const char*, int attributes, float size); + +// change the encoding used to draw bytes (depreciated) +extern FL_API const char* encoding_; +inline const char* get_encoding() {return encoding_;} +FL_API void set_encoding(const char*); + +// information you can get about the current font+size+encoding: +extern FL_API Font* current_font_; +extern FL_API float current_size_; // should be 2x2 transformation matrix +inline Font* getfont() {return current_font_;} +inline float getsize() {return current_size_;} + +// measure things in the current font: +FL_API float getwidth(const char*); +FL_API float getwidth(const char*, int length); +FL_API float getascent(); +FL_API float getdescent(); + +// draw using current font: +FL_API void drawtext_transformed(const char*, int n, float x, float y); +FL_API void drawtext(const char*, float x, float y); +FL_API void drawtext(const char*, int length, float x, float y); + +// the label text formatter: +FL_API void measure(const char*, int& w, int& h, Flags = 0); +FL_API void measure(float (*getwidth)(const char*, int),const char*, float& w, float& h, Flags = 0); +FL_API void drawtext(const char*, const Rectangle&, Flags); +FL_API void drawtext(void (*textfunction)(const char*,int,float,float), + float (*getwidth)(const char*, int), + const char* str, const Rectangle& r, Flags flags); + +// set where \t characters go in label text formatter: +extern FL_API const int* column_widths_; +inline const int* column_widths() {return column_widths_;} +inline void column_widths(const int* i) {column_widths_ = i;} +// see also Symbol.h for @-sign commands +//@} + +/// \name Images +//@{ +FL_API void drawimage(const uchar*, PixelType, const Rectangle&); +FL_API void drawimage(const uchar*, PixelType, const Rectangle&, int linedelta); + +typedef const uchar* (*DrawImageCallback)(void* data, int x, int y, int w, uchar* buffer); +FL_API void drawimage(DrawImageCallback, void*, PixelType, const Rectangle&); + +FL_API uchar *readimage(uchar *p, PixelType, const Rectangle&); +FL_API uchar *readimage(uchar *p, PixelType, const Rectangle&, int linedelta); + +FL_API void scrollrect(const Rectangle&, int dx, int dy, + void (*draw_area)(void*, const Rectangle&), void*); +//@} + +#ifndef DOXYGEN /* depreciated: */ +FL_API void drawframe(const char* s, int x, int y, int w, int h); +FL_API void drawframe2(const char* s, int x, int y, int w, int h); +FL_API void overlay_rect(int,int,int,int); +FL_API void overlay_clear(); +#endif + +} + +#endif + +// +// End of "$Id: draw.h 5939 2007-08-02 14:19:28Z spitzak $". +// |