// // Unit tests for the Fast Light Tool Kit (FLTK). // // Copyright 1998-2022 by Bill Spitzak and others. // // This library is free software. Distribution and use rights are outlined in // the file "COPYING" which should have been included with this file. If this // file is missing or damaged, see the license at: // // https://www.fltk.org/COPYING.php // // Please see the following page on how to report bugs and issues: // // https://www.fltk.org/bugs.php // #include "unittests.h" #include #include // // Test symbol rendering // class SymbolTest : public Fl_Widget { void DrawTextAndBoxes(const char *txt, int X, int Y) { int wo = 0, ho = 0; fl_measure(txt, wo, ho, 1); // Draw fl_measure() rect fl_color(FL_RED); fl_rect(X, Y, wo, ho); // ////////////////////////////////////////////////////////////////////// // NOTE: fl_text_extents() currently does not support multiline strings.. // until it does, let's leave this out, as we do multiline tests.. // ////////////////////////////////////////////////////////////////////// // // draw fl_text_extents() glyph bounding box // int dx,dy; // fl_text_extents(txt, dx, dy, wo, ho); // fl_color(FL_GREEN); // fl_rect(X+dx, Y+dy, wo, ho); // // Draw text with symbols enabled fl_color(FL_BLACK); fl_draw(txt, X, Y, 10, 10, FL_ALIGN_INSIDE|FL_ALIGN_TOP|FL_ALIGN_LEFT, 0, 1); } public: static Fl_Widget *create() { return new SymbolTest(TESTAREA_X, TESTAREA_Y, TESTAREA_W, TESTAREA_H); } SymbolTest(int x, int y, int w, int h) : Fl_Widget(x, y, w, h) {} void draw(void) { int x0 = x(); // origin is current window position for Fl_Box int y0 = y(); int w0 = w(); int h0 = h(); fl_push_clip(x0, y0, w0, h0); // reset local clipping { // set the background colour - slightly off-white to enhance the green bounding box fl_color(fl_gray_ramp(FL_NUM_GRAY - 3)); fl_rectf(x0, y0, w0, h0); int fsize = 25; fl_font(FL_HELVETICA, fsize); int xx = x0+10; int yy = y0+10; DrawTextAndBoxes("Text" ,xx,yy); yy += fsize+10; // check no symbols DrawTextAndBoxes("@->" ,xx,yy); yy += fsize+10; // check symbol alone DrawTextAndBoxes("@-> " ,xx,yy); yy += fsize+10; // check symbol with trailing space DrawTextAndBoxes("@-> Rt Arrow" ,xx,yy); yy += fsize+10; // check symbol at left edge DrawTextAndBoxes("Lt Arrow @<-" ,xx,yy); yy += fsize+10; // check symbol at right edge DrawTextAndBoxes("@-> Rt/Lt @<-" ,xx,yy); yy += fsize+10; // check symbol at lt+rt edges DrawTextAndBoxes("@@ At/Lt @<-" ,xx,yy); yy += fsize+10; // check @@ at left, symbol at right DrawTextAndBoxes("@-> Lt/At @@" ,xx,yy); yy += fsize+10; // check symbol at left, @@ at right DrawTextAndBoxes("@@ At/At @@" ,xx,yy); yy += fsize+10; // check @@ at left+right xx = x0+200; yy = y0+10; DrawTextAndBoxes("Line1\nLine2" ,xx,yy); yy += (fsize+10)*2; // check 2 lines, no symbol DrawTextAndBoxes("@-> Line1\nLine2 @<-" ,xx,yy); yy += (fsize+10)*2; // check 2 lines, lt+rt symbols DrawTextAndBoxes("@-> Line1\nLine2\nLine3 @<-",xx,yy); yy += (fsize+10)*3; // check 3 lines, lt+rt symbols DrawTextAndBoxes("@@@@" ,xx,yy); yy += (fsize+10); // check abutting @@'s DrawTextAndBoxes("@@ @@" ,xx,yy); yy += (fsize+10); // check @@'s with space sep fl_font(FL_HELVETICA, 14); fl_color(FL_RED); fl_draw("fl_measure bounding box in RED", x0+10,y0+h0-20); } fl_pop_clip(); // remove the local clip } }; UnitTest symbolExtents(kTestSymbol, "Symbol Text", SymbolTest::create);