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#include <math.h>
#include "gr.hh"
#include "extern.hh"
#include "GriState.hh"
bool state_save();
bool state_restore();
bool state_display();
static std::vector<GriState> stateStack;
bool
stateCmd()
{
switch (_nword) {
case 2:
if (word_is(1, "save"))
return state_save();
else if (word_is(1, "restore"))
return state_restore();
else if (word_is(1, "display"))
return state_display();
else {
demonstrate_command_usage();
err("Second word must be `save', `restore', or `display'");
return false;
}
// NOT REACHED
default:
demonstrate_command_usage();
NUMBER_WORDS_ERROR;
return false;
}
}
bool
state_save()
{
stateStack.push_back(_griState);
return true;
}
bool
state_restore()
{
if (stateStack.size() < 1) {
warning("Ignoring `state restore' because no `state save' done yet");
return true;
}
if (stateStack.size() > 0) {
_griState = stateStack.back();
stateStack.pop_back();
}
// Set these since used globally (see e.g. draw_axes)
gr_setfontsize_pt(_griState.font().size_pt);
gr_setfont(_griState.font().id);
PUT_VAR("..fontsize..", _griState.font().size_pt);
return true;
}
bool
state_display()
{
int d = stateStack.size();
if (d < 1) {
warning("No `state' stack exists yet. Do `state save' first.");
return true;
}
char msg[200];
for (int i = d - 1; i >= 0; i--) {
if (i == d - 1)
sprintf(msg, "State at top of stack (most recent):\n");
else
sprintf(msg, "State at distance %d from top of stack:\n", d - i);
ShowStr(msg);
sprintf(msg, " line width (curve) = %f pt\n", stateStack[i].linewidth_line());
ShowStr(msg);
sprintf(msg, " line width (axis) = %f pt\n", stateStack[i].linewidth_axis());
ShowStr(msg);
sprintf(msg, " line width (symbol) = %f pt\n", stateStack[i].linewidth_symbol());
ShowStr(msg);
if ((stateStack[i].color_text()).isRGB() == true) {
sprintf(msg, " color (font) = (%f,%f,%f) rgb\n",
(stateStack[i].color_text()).getR(),
(stateStack[i].color_text()).getG(),
(stateStack[i].color_text()).getB());
} else {
sprintf(msg, " color (font) = (%f,%f,%f) hsb\n",
(stateStack[i].color_text()).getH(),
(stateStack[i].color_text()).getS(),
(stateStack[i].color_text()).getV());
}
ShowStr(msg);
if ((stateStack[i].color_line()).isRGB() == true) {
sprintf(msg, " color (font) = (%f,%f,%f) rgb\n",
(stateStack[i].color_line()).getR(),
(stateStack[i].color_line()).getG(),
(stateStack[i].color_line()).getB());
} else {
sprintf(msg, " color (font) = (%f,%f,%f) hsb\n",
(stateStack[i].color_line()).getH(),
(stateStack[i].color_line()).getS(),
(stateStack[i].color_line()).getV());
}
ShowStr(msg);
}
return true;
}
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