FLTK 1.3.0
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00001 // 00002 // "$Id$" 00003 // 00004 // Definition of classes Fl_Device, Fl_Graphics_Driver, Fl_Surface_Device, Fl_Display_Device 00005 // for the Fast Light Tool Kit (FLTK). 00006 // 00007 // Copyright 2010-2011 by Bill Spitzak and others. 00008 // 00009 // This library is free software; you can redistribute it and/or 00010 // modify it under the terms of the GNU Library General Public 00011 // License as published by the Free Software Foundation; either 00012 // version 2 of the License, or (at your option) any later version. 00013 // 00014 // This library is distributed in the hope that it will be useful, 00015 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 // Library General Public License for more details. 00018 // 00019 // You should have received a copy of the GNU Library General Public 00020 // License along with this library; if not, write to the Free Software 00021 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00022 // USA. 00023 // 00024 // Please report all bugs and problems on the following page: 00025 // 00026 // http://www.fltk.org/str.php 00027 // 00033 #ifndef Fl_Device_H 00034 #define Fl_Device_H 00035 00036 #include <FL/x.H> 00037 #include <FL/Fl_Plugin.H> 00038 #include <FL/Fl_Image.H> 00039 #include <FL/Fl_Bitmap.H> 00040 #include <FL/Fl_Pixmap.H> 00041 #include <FL/Fl_RGB_Image.H> 00042 00043 class Fl_Graphics_Driver; 00044 class Fl_Font_Descriptor; 00046 FL_EXPORT extern Fl_Graphics_Driver *fl_graphics_driver; 00047 00056 typedef void (*Fl_Draw_Image_Cb)(void* data,int x,int y,int w,uchar* buf); 00057 00058 // typedef what the x,y fields in a point are: 00059 #ifdef WIN32 00060 typedef int COORD_T; 00061 # define XPOINT XPoint 00062 #elif defined(__APPLE__) 00063 typedef float COORD_T; 00064 typedef struct { float x; float y; } QPoint; 00065 # define XPOINT QPoint 00066 extern float fl_quartz_line_width_; 00067 #else 00068 typedef short COORD_T; 00069 # define XPOINT XPoint 00070 #endif 00071 00075 class FL_EXPORT Fl_Device { 00076 public: 00080 static const char *class_id; 00088 virtual const char *class_name() {return class_id;}; 00095 virtual ~Fl_Device() {}; 00096 }; 00097 00098 #define FL_REGION_STACK_SIZE 10 00099 #define FL_MATRIX_STACK_SIZE 32 00100 00108 class FL_EXPORT Fl_Graphics_Driver : public Fl_Device { 00109 public: 00112 struct matrix {double a, b, c, d, x, y;}; 00113 private: 00114 static const matrix m0; 00115 Fl_Font font_; // current font 00116 Fl_Fontsize size_; // current font size 00117 Fl_Color color_; // current color 00118 enum {LINE, LOOP, POLYGON, POINT_}; 00119 int sptr; 00120 static const int matrix_stack_size = FL_MATRIX_STACK_SIZE; 00121 matrix stack[FL_MATRIX_STACK_SIZE]; 00122 matrix m; 00123 int n, p_size, gap_; 00124 XPOINT *p; 00125 int what; 00126 int fl_clip_state_number; 00127 int rstackptr; 00128 static const int region_stack_max = FL_REGION_STACK_SIZE - 1; 00129 Fl_Region rstack[FL_REGION_STACK_SIZE]; 00130 #ifdef WIN32 00131 int numcount; 00132 int counts[20]; 00133 #endif 00134 Fl_Font_Descriptor *font_descriptor_; 00135 void transformed_vertex0(COORD_T x, COORD_T y); 00136 void fixloop(); 00137 00138 protected: 00139 /* ** \brief red color for background and/or mixing if device does not support masking or alpha * 00140 uchar bg_r_; 00141 ** \brief green color for background and/or mixing if device does not support masking or alpha * 00142 uchar bg_g_; 00143 ** \brief blue color for background and/or mixing if device does not support masking or alpha * 00144 uchar bg_b_; */ 00145 friend class Fl_Pixmap; 00146 friend class Fl_Bitmap; 00147 friend class Fl_RGB_Image; 00148 friend void fl_rect(int x, int y, int w, int h); 00149 friend void fl_rectf(int x, int y, int w, int h); 00150 friend void fl_line_style(int style, int width, char* dashes); 00151 friend void fl_xyline(int x, int y, int x1); 00152 friend void fl_xyline(int x, int y, int x1, int y2); 00153 friend void fl_xyline(int x, int y, int x1, int y2, int x3); 00154 friend void fl_yxline(int x, int y, int y1); 00155 friend void fl_yxline(int x, int y, int y1, int x2); 00156 friend void fl_yxline(int x, int y, int y1, int x2, int y3); 00157 friend void fl_line(int x, int y, int x1, int y1); 00158 friend void fl_line(int x, int y, int x1, int y1, int x2, int y2); 00159 friend void fl_draw(const char *str, int n, int x, int y); 00160 #ifdef __APPLE__ 00161 friend void fl_draw(const char *str, int n, float x, float y); 00162 #endif 00163 friend void fl_draw(int angle, const char *str, int n, int x, int y); 00164 friend void fl_rtl_draw(const char *str, int n, int x, int y); 00165 friend void fl_font(Fl_Font face, Fl_Fontsize size); 00166 friend void fl_color(Fl_Color c); 00167 friend void fl_color(uchar r, uchar g, uchar b); 00168 friend void fl_point(int x, int y); 00169 friend void fl_loop(int x0, int y0, int x1, int y1, int x2, int y2); 00170 friend void fl_loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3); 00171 friend void fl_polygon(int x0, int y0, int x1, int y1, int x2, int y2); 00172 friend void fl_polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3); 00173 friend void fl_begin_points(); 00174 friend void fl_begin_line(); 00175 friend void fl_begin_loop(); 00176 friend void fl_begin_polygon(); 00177 friend void fl_vertex(double x, double y); 00178 friend void fl_curve(double X0, double Y0, double X1, double Y1, double X2, double Y2, double X3, double Y3); 00179 friend void fl_circle(double x, double y, double r); 00180 friend void fl_arc(double x, double y, double r, double start, double end); 00181 friend void fl_arc(int x, int y, int w, int h, double a1, double a2); 00182 friend void fl_pie(int x, int y, int w, int h, double a1, double a2); 00183 friend void fl_end_points(); 00184 friend void fl_end_line(); 00185 friend void fl_end_loop(); 00186 friend void fl_end_polygon(); 00187 friend void fl_transformed_vertex(double xf, double yf); 00188 friend void fl_push_clip(int x, int y, int w, int h); 00189 friend int fl_clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H); 00190 friend int fl_not_clipped(int x, int y, int w, int h); 00191 friend void fl_push_no_clip(); 00192 friend void fl_pop_clip(); 00193 friend void fl_begin_complex_polygon(); 00194 friend void fl_gap(); 00195 friend void fl_end_complex_polygon(); 00196 friend void fl_push_matrix(); 00197 friend void fl_pop_matrix(); 00198 friend void fl_mult_matrix(double a, double b, double c, double d, double x, double y); 00199 friend void fl_scale(double x, double y); 00200 friend void fl_scale(double x); 00201 friend void fl_translate(double x, double y); 00202 friend void fl_rotate(double d); 00203 friend double fl_transform_x(double x, double y); 00204 friend double fl_transform_y(double x, double y); 00205 friend double fl_transform_dx(double x, double y); 00206 friend double fl_transform_dy(double x, double y); 00207 friend Fl_Region fl_clip_region(); 00208 friend void fl_clip_region(Fl_Region r); 00209 friend void fl_restore_clip(); 00210 00211 friend void fl_draw_image(const uchar* buf, int X,int Y,int W,int H, int D, int L); 00212 friend void fl_draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D, int L); 00213 friend void fl_draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D); 00214 friend FL_EXPORT void fl_draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D); 00215 friend FL_EXPORT void gl_start(); 00216 00217 matrix *fl_matrix; 00220 Fl_Graphics_Driver(); 00222 virtual void rect(int x, int y, int w, int h); 00224 virtual void rectf(int x, int y, int w, int h); 00226 virtual void line_style(int style, int width=0, char* dashes=0); 00228 virtual void xyline(int x, int y, int x1); 00230 virtual void xyline(int x, int y, int x1, int y2); 00232 virtual void xyline(int x, int y, int x1, int y2, int x3); 00234 virtual void yxline(int x, int y, int y1); 00236 virtual void yxline(int x, int y, int y1, int x2); 00238 virtual void yxline(int x, int y, int y1, int x2, int y3); 00240 virtual void line(int x, int y, int x1, int y1); 00242 virtual void line(int x, int y, int x1, int y1, int x2, int y2); 00244 virtual void draw(const char *str, int n, int x, int y) = 0; 00245 #ifdef __APPLE__ 00246 virtual void draw(const char *str, int n, float x, float y) = 0; 00247 #endif 00248 00249 virtual void draw(int angle, const char *str, int n, int x, int y) = 0; 00251 virtual void rtl_draw(const char *str, int n, int x, int y) = 0; 00253 virtual void color(Fl_Color c) {color_ = c;} 00255 virtual void color(uchar r, uchar g, uchar b) = 0; 00257 virtual void point(int x, int y); 00259 virtual void loop(int x0, int y0, int x1, int y1, int x2, int y2); 00261 virtual void loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3); 00263 virtual void polygon(int x0, int y0, int x1, int y1, int x2, int y2); 00265 virtual void polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3); 00267 virtual void begin_points(); 00269 virtual void begin_line(); 00271 virtual void begin_loop(); 00273 virtual void begin_polygon(); 00275 virtual void vertex(double x, double y); 00277 virtual void curve(double X0, double Y0, double X1, double Y1, double X2, double Y2, double X3, double Y3); 00279 virtual void circle(double x, double y, double r); 00281 virtual void arc(double x, double y, double r, double start, double end); 00283 virtual void arc(int x, int y, int w, int h, double a1, double a2); 00285 virtual void pie(int x, int y, int w, int h, double a1, double a2); 00287 virtual void end_points(); 00289 virtual void end_line(); 00291 virtual void end_loop(); 00293 virtual void end_polygon(); 00295 virtual void begin_complex_polygon(); 00297 virtual void gap(); 00299 virtual void end_complex_polygon(); 00301 virtual void transformed_vertex(double xf, double yf); 00303 virtual void push_clip(int x, int y, int w, int h); 00305 virtual int clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H); 00307 virtual int not_clipped(int x, int y, int w, int h); 00309 virtual void push_no_clip(); 00311 virtual void pop_clip(); 00312 00314 void push_matrix(); 00316 void pop_matrix(); 00318 void mult_matrix(double a, double b, double c, double d, double x, double y); 00320 inline void scale(double x, double y) { mult_matrix(x,0,0,y,0,0); } 00322 inline void scale(double x) { mult_matrix(x,0,0,x,0,0); } 00324 inline void translate(double x,double y) { mult_matrix(1,0,0,1,x,y); } 00326 void rotate(double d); 00328 double transform_x(double x, double y); 00330 double transform_y(double x, double y); 00332 double transform_dx(double x, double y); 00334 double transform_dy(double x, double y); 00336 Fl_Region clip_region(); 00338 void clip_region(Fl_Region r); 00340 void restore_clip(); 00341 00342 // Images 00344 virtual void draw_image(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0) = 0; 00346 virtual void draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0) = 0; 00348 virtual void draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3) = 0; 00350 virtual void draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1) = 0; 00351 // Image classes 00357 virtual void draw(Fl_RGB_Image * rgb,int XP, int YP, int WP, int HP, int cx, int cy) = 0; 00363 virtual void draw(Fl_Pixmap * pxm,int XP, int YP, int WP, int HP, int cx, int cy) = 0; 00369 virtual void draw(Fl_Bitmap *bm, int XP, int YP, int WP, int HP, int cx, int cy) = 0; 00370 00371 public: 00372 static const char *class_id; 00373 virtual const char *class_name() {return class_id;}; 00375 virtual void font(Fl_Font face, Fl_Fontsize size) {font_ = face; size_ = size;} 00377 Fl_Font font() {return font_; } 00379 Fl_Fontsize size() {return size_; } 00381 virtual double width(const char *str, int n) = 0; 00383 virtual inline double width(unsigned int c) { char ch = (char)c; return width(&ch, 1); } 00385 virtual void text_extents(const char*, int n, int& dx, int& dy, int& w, int& h); 00387 virtual int height() = 0; 00389 virtual int descent() = 0; 00391 Fl_Color color() {return color_;} 00393 inline Fl_Font_Descriptor *font_descriptor() { return font_descriptor_;} 00395 inline void font_descriptor(Fl_Font_Descriptor *d) { font_descriptor_ = d;} 00397 virtual ~Fl_Graphics_Driver() {}; 00398 }; 00399 00400 #if defined(__APPLE__) || defined(FL_DOXYGEN) 00401 00406 class FL_EXPORT Fl_Quartz_Graphics_Driver : public Fl_Graphics_Driver { 00407 public: 00408 static const char *class_id; 00409 const char *class_name() {return class_id;}; 00410 void color(Fl_Color c); 00411 void color(uchar r, uchar g, uchar b); 00412 void draw(const char* str, int n, int x, int y); 00413 #ifdef __APPLE__ 00414 void draw(const char *str, int n, float x, float y); 00415 #endif 00416 void draw(int angle, const char *str, int n, int x, int y); 00417 void rtl_draw(const char* str, int n, int x, int y); 00418 void font(Fl_Font face, Fl_Fontsize size); 00419 void draw(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy); 00420 void draw(Fl_Bitmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy); 00421 void draw(Fl_RGB_Image *img, int XP, int YP, int WP, int HP, int cx, int cy); 00422 void draw_image(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0); 00423 void draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3); 00424 void draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0); 00425 void draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1); 00426 double width(const char *str, int n); 00427 double width(unsigned int c); 00428 void text_extents(const char*, int n, int& dx, int& dy, int& w, int& h); 00429 int height(); 00430 int descent(); 00431 }; 00432 #endif 00433 #if defined(WIN32) || defined(FL_DOXYGEN) 00434 00439 class FL_EXPORT Fl_GDI_Graphics_Driver : public Fl_Graphics_Driver { 00440 public: 00441 static const char *class_id; 00442 const char *class_name() {return class_id;}; 00443 void color(Fl_Color c); 00444 void color(uchar r, uchar g, uchar b); 00445 void draw(const char* str, int n, int x, int y); 00446 void draw(int angle, const char *str, int n, int x, int y); 00447 void rtl_draw(const char* str, int n, int x, int y); 00448 void font(Fl_Font face, Fl_Fontsize size); 00449 void draw(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy); 00450 void draw(Fl_Bitmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy); 00451 void draw(Fl_RGB_Image *img, int XP, int YP, int WP, int HP, int cx, int cy); 00452 void draw_image(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0); 00453 void draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3); 00454 void draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0); 00455 void draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1); 00456 double width(const char *str, int n); 00457 double width(unsigned int c); 00458 void text_extents(const char*, int n, int& dx, int& dy, int& w, int& h); 00459 int height(); 00460 int descent(); 00461 }; 00462 #endif 00463 #if !(defined(__APPLE__) || defined(WIN32)) 00464 00469 class Fl_Xlib_Graphics_Driver : public Fl_Graphics_Driver { 00470 public: 00471 static const char *class_id; 00472 const char *class_name() {return class_id;}; 00473 void color(Fl_Color c); 00474 void color(uchar r, uchar g, uchar b); 00475 void draw(const char* str, int n, int x, int y); 00476 void draw(int angle, const char *str, int n, int x, int y); 00477 void rtl_draw(const char* str, int n, int x, int y); 00478 void font(Fl_Font face, Fl_Fontsize size); 00479 void draw(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy); 00480 void draw(Fl_Bitmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy); 00481 void draw(Fl_RGB_Image *img, int XP, int YP, int WP, int HP, int cx, int cy); 00482 void draw_image(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0); 00483 void draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3); 00484 void draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0); 00485 void draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1); 00486 double width(const char *str, int n); 00487 double width(unsigned int c); 00488 void text_extents(const char*, int n, int& dx, int& dy, int& w, int& h); 00489 int height(); 00490 int descent(); 00491 }; 00492 #endif 00493 00497 class FL_EXPORT Fl_Surface_Device : public Fl_Device { 00499 Fl_Graphics_Driver *_driver; 00500 static Fl_Surface_Device *_surface; // the surface that currently receives graphics output 00501 protected: 00503 Fl_Surface_Device(Fl_Graphics_Driver *graphics_driver) {_driver = graphics_driver; }; 00504 public: 00505 static const char *class_id; 00506 const char *class_name() {return class_id;}; 00507 virtual void set_current(void); 00509 inline void driver(Fl_Graphics_Driver *graphics_driver) {_driver = graphics_driver;}; 00511 inline Fl_Graphics_Driver *driver() {return _driver; }; 00513 static inline Fl_Surface_Device *surface() {return _surface; }; 00515 virtual ~Fl_Surface_Device() {} 00516 }; 00517 00521 class FL_EXPORT Fl_Display_Device : public Fl_Surface_Device { 00522 static Fl_Display_Device *_display; // the platform display device 00523 public: 00524 static const char *class_id; 00525 const char *class_name() {return class_id;}; 00527 Fl_Display_Device(Fl_Graphics_Driver *graphics_driver); 00529 static inline Fl_Display_Device *display_device() {return _display;}; 00530 }; 00531 00537 class FL_EXPORT Fl_Device_Plugin : public Fl_Plugin { 00538 public: 00540 Fl_Device_Plugin(const char *name) 00541 : Fl_Plugin(klass(), name) { } 00543 virtual const char *klass() { return "fltk:device"; } 00545 virtual const char *name() = 0; 00551 virtual int print(Fl_Widget* w, int x, int y, int height) = 0; 00552 }; 00553 00554 #endif // Fl_Device_H 00555 00556 // 00557 // End of "$Id$". 00558 //