mirror of https://github.com/fltk/fltk
Simplify code for image drawing by PostScript graphics driver.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12832 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Manolo Gouy
parent
4a0c13ac34
commit
e440b8859f
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@ -67,7 +67,7 @@ private:
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void *prepare85();
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void write85(void *data, const uchar *p, int len);
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void close85(void *data);
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int scale_and_draw(Fl_Image *img, int XP, int YP, int WP, int HP);
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int scale_for_image_(Fl_Image *img, int XP, int YP, int WP, int HP,int cx, int cy);
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protected:
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uchar **mask_bitmap() {return &mask;}
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void mask_bitmap(uchar **value) { }
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@ -570,109 +570,70 @@ void Fl_PostScript_Graphics_Driver::draw_image_mono(Fl_Draw_Image_Cb call, void
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////////////////////////////// Image classes //////////////////////
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void Fl_PostScript_Graphics_Driver::draw_pixmap(Fl_Pixmap * pxm,int XP, int YP, int WP, int HP, int cx, int cy){
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int need_clip = cx || cy || WP != pxm->w() || HP != pxm->h();
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if (need_clip) push_clip(XP, YP, WP, HP);
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if (pxm->w() != pxm->data_w() || pxm->h() != pxm->data_h()) {
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scale_and_draw(pxm, XP-cx, YP-cy, pxm->w(), pxm->h());
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} else {
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const char * const * di =pxm->data();
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int w,h;
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if (!fl_measure_pixmap(di, w, h)) return;
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mask=0;
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mask_bitmap(&mask);
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mx = WP;
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my = HP;
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fl_draw_pixmap(di, XP -cx, YP -cy, FL_BLACK);
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delete[] mask;
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mask=0;
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mask_bitmap(0);
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}
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if (need_clip) pop_clip();
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if (scale_for_image_(pxm, XP, YP, WP, HP, cx, cy)) return;
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const char * const * di =pxm->data();
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int w,h;
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if (!fl_measure_pixmap(di, w, h)) return;
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mask=0;
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mask_bitmap(&mask);
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mx = w;
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my = h;
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fl_draw_pixmap(di, 0, 0, FL_BLACK);
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delete[] mask;
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mask=0;
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mask_bitmap(0);
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clocale_printf("GR GR\n");
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pop_clip(); // matches push_no_clip in scale_for_image_
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}
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void Fl_PostScript_Graphics_Driver::draw_rgb(Fl_RGB_Image * rgb,int XP, int YP, int WP, int HP, int cx, int cy)
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{
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int need_clip = cx || cy || WP != rgb->w() || HP != rgb->h();
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if (need_clip) push_clip(XP, YP, WP, HP);
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if (rgb->w() != rgb->data_w() || rgb->h() != rgb->data_h()) {
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scale_and_draw(rgb, XP-cx, YP-cy, rgb->w(), rgb->h());
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} else {
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const uchar * di = rgb->array;
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int w = rgb->w();
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int h = rgb->h();
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mask=0;
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if (lang_level_>2) //when not true, not making alphamask, mixing colors instead...
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if (alpha_mask(di, w, h, rgb->d(),rgb->ld())) return; //everything masked, no need for painting!
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draw_image(di, XP + cx, YP + cy, w, h, rgb->d(), rgb->ld());
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delete[]mask;
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if (scale_for_image_(rgb, XP, YP, WP, HP, cx, cy)) return;
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const uchar *di = rgb->array;
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int w = rgb->data_w();
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int h = rgb->data_h();
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mask = 0;
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if (lang_level_ <= 2 || !alpha_mask(di, w, h, rgb->d(),rgb->ld()) ) {
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draw_image(di, 0, 0, w, h, rgb->d(), rgb->ld());
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delete[] mask;
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mask=0;
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}
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if (need_clip) pop_clip();
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}
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int Fl_PostScript_Graphics_Driver::scale_and_draw(Fl_Image *img, int XP, int YP, int WP, int HP){
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int X, Y, W, H;
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clip_box(XP,YP,WP,HP,X,Y,W,H); // X,Y,W,H will give the unclipped area of XP,YP,WP,HP
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if (W == 0 || H == 0) return 1;
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push_no_clip(); // remove the FLTK clip that can't be rescaled
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clocale_printf("%d %d %i %i CL\n", X, Y, W, H);
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clocale_printf("GS %d %d TR %f %f SC GS\n", XP, YP, float(WP)/img->data_w(), float(HP)/img->data_h());
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int keep_w = img->w(), keep_h = img->h();
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img->scale(img->data_w(), img->data_h(), 0, 1);
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if (img->as_rgb_image()) draw_rgb(img->as_rgb_image(), 0, 0, img->data_w(), img->data_h(), 0, 0);
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else img->draw(0, 0, img->data_w(), img->data_h(), 0, 0);
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clocale_printf("GR GR\n");
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img->scale(keep_w, keep_h, 0, 1);
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pop_clip(); // restore FLTK's clip
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return 1;
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pop_clip(); // matches push_no_clip in scale_for_image_
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}
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void Fl_PostScript_Graphics_Driver::draw_bitmap(Fl_Bitmap * bitmap,int XP, int YP, int WP, int HP, int cx, int cy) {
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int need_clip = cx || cy || WP != bitmap->w() || HP != bitmap->h();
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if (need_clip) push_clip(XP, YP, WP, HP);
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if (bitmap->w() != bitmap->data_w() || bitmap->h() != bitmap->data_h()) {
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scale_and_draw(bitmap, XP-cx, YP-cy, bitmap->w(), bitmap->h());
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} else {
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const uchar * di = bitmap->array;
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int w,h;
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int LD=(bitmap->w()+7)/8;
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int xx;
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if (WP> bitmap->w() - cx){// to assure that it does not go out of bounds;
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w = bitmap->w() - cx;
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xx = (bitmap->w()+7)/8 - cx/8; //length of mask in bytes
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}else{
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w =WP;
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xx = (w+7)/8 - cx/8;
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if (scale_for_image_(bitmap, XP, YP, WP, HP, cx, cy)) return;
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WP = bitmap->data_w(), HP = bitmap->data_h();
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const uchar * di = bitmap->array;
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int i, j, xx = (WP+7)/8;
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fprintf(output , "%i %i %i %i %i %i MI\n", 0, HP, WP, -HP, WP, HP);
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void *rle85 = prepare_rle85();
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for (j=0; j<HP; j++){
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for (i=0; i<xx; i++){
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write_rle85(swap_byte(*di), rle85);
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di++;
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}
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if ( HP > bitmap->h()-cy)
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h = bitmap->h() - cy;
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else
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h = HP;
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di += cy*LD + cx/8;
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int si = cx % 8; // small shift to be clipped, it is simpler than shifting whole mask
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int i,j;
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fprintf(output , "%i %i %i %i %i %i MI\n", XP - si, YP + HP , WP , -HP , w , h);
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void *rle85 = prepare_rle85();
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for (j=0; j<HP; j++){
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for (i=0; i<xx; i++){
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write_rle85(swap_byte(*di), rle85);
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di++;
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}
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}
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close_rle85(rle85); fputc('\n', output);
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}
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if (need_clip) pop_clip();
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close_rle85(rle85); fputc('\n', output);
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clocale_printf("GR GR\n");
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pop_clip(); // matches push_no_clip in scale_for_image_
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}
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int Fl_PostScript_Graphics_Driver::scale_for_image_(Fl_Image *img, int XP, int YP, int WP, int HP, int cx,int cy) {
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int X, Y, W, H;
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if (Fl_Graphics_Driver::start_image(img, XP, YP, WP, HP, cx, cy, X, Y, W, H)) {
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return 1;
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}
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push_no_clip(); // remove the FLTK clip that can't be rescaled
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clocale_printf("%d %d %i %i CL\n", X, Y, W, H);
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clocale_printf("GS %d %d TR %f %f SC GS\n", X-cx, Y-cy, float(img->w())/img->data_w(), float(img->h())/img->data_h());
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return 0;
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}
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#endif // !defined(FL_DOXYGEN) && !defined(FL_NO_PRINT_SUPPORT)
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//
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// End of "$Id$"
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//
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