fltk/test/unittest_symbol.cxx

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//
// "$Id$"
//
// Unit tests for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2010 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:
//
// http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
#include <FL/Fl_Box.H>
#include <FL/fl_draw.H>
//
// 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("symbol text", SymbolTest::create);
//
// End of "$Id$"
//