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// $Id: Banner.cc 2641 2007-09-02 21:31:02Z flaterco $
/* Banner Graph printed sideways on tractor feed dot matrix printer
Copyright (C) 1998 David Flater.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "common.hh"
#include "Graph.hh"
#include "TTYGraph.hh"
#include "Banner.hh"
// Fudge factor to correct aspect ratio on line printer
// Correct 10x6 of Pica type to be 1:1
static const double LPaspectfudge (0.6);
Banner::Banner (unsigned xSize, unsigned ySize): TTYGraph (ySize, xSize) {
// turn sideways ^^^^^^^^^^^^
}
Banner * const Banner::factory (const Station &station,
unsigned xSize,
Timestamp startTime,
Timestamp endTime) {
// Everything is sideways.
Interval increment (std::max (
(interval_rep_t)1,
Global::intervalround (Global::aspectMagicNumber /
(double)xSize /
(station.aspect * LPaspectfudge))));
// I really painted myself into a corner this time. To create a
// Banner I need to know the length. The length I want depends on
// labelWidth (the amount by which Graph fudges the start position
// to avoid clobbering it with depth labels). To get labelWidth I
// need an instance of Banner. Catch-22.
// In the absence of a better idea, I create one Banner just to get
// labelWidth and then do it right. Thankfully, banners are not the
// sort of objects that get created often.
Banner throwawayBanner (xSize, Global::minTTYwidth);
// Stuff duplicated from Graph::drawTides, but with confusion of X and Y.
const double ymin (vertGraphMargin * (double)xSize);
const double ymax ((double)xSize - ymin);
const double valmin (station.minLevel().val());
const double valmax (station.maxLevel().val());
assert (valmin < valmax);
unsigned lineStep, labelWidth, labelRight;
int minDepth, maxDepth;
const Dstr unitsDesc (Units::shortName (station.predictUnits()));
throwawayBanner.figureLabels (ymax, ymin, valmax, valmin, unitsDesc,
lineStep, labelWidth,
labelRight, minDepth, maxDepth);
// At last we have labelWidth and can proceed.
unsigned ySize (std::max (Global::iround ((endTime - startTime) / increment +
throwawayBanner.startPosition(labelWidth)),
(int)Global::minTTYwidth));
return new Banner (xSize, ySize);
}
void Banner::drawHorizontalLine (int xlo,
int xhi,
int y,
Colors::Colorchoice c unusedParameter) {
for (int i=xlo; i<=xhi; ++i)
setPixel (i, y, '|');
}
void Banner::drawHourTick (int x, Colors::Colorchoice c unusedParameter) {
setPixel (x, _ySize-1, '-');
}
void Banner::print (Dstr &text_out) {
// Everything is sideways.
text_out = (char *)NULL;
SafeVector<char> buf (_ySize+2);
buf[_ySize] = '\n';
buf[_ySize+1] = '\0';
for (unsigned x=0; x<_xSize; ++x) {
for (unsigned y=0; y<_ySize; ++y)
buf[y] = tty[(_ySize-1-y)*_xSize+x];
text_out += &(buf[0]);
}
}
const double Banner::aspectFudgeFactor() const {
return LPaspectfudge;
}
void Banner::drawStringSideways (int x, int y, const Dstr &s) {
for (unsigned a=0; a<s.length(); ++a)
setPixel (x, y-a, s[a]);
}
void Banner::labelHourTick (int x, const Dstr &label) {
drawStringSideways (x,
_ySize - hourTickLen() - 1,
label);
}
void Banner::labelEvent (int topLine, const EventBlurb &blurb) {
if (topLine >= 0) {
drawStringSideways (blurb.x-1, blurb.line1.length()-1, blurb.line1);
drawStringSideways (blurb.x, blurb.line2.length()-1, blurb.line2);
} else {
int y (_ySize - hourTickLen() - 4);
drawStringSideways (blurb.x-1, y, blurb.line1);
drawStringSideways (blurb.x, y, blurb.line2);
}
}
// This has to agree with labelEvent.
void Banner::measureBlurb (EventBlurb &blurb) const {
blurb.deltaLeft = -1;
blurb.deltaRight = 0;
}
void Banner::drawTitleLine (const Dstr &title unusedParameter) {
// Lose it.
}
const bool Banner::isBanner() const {
return true;
}
// Cleanup2006 Done
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