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/* Copyright (C) 2000 Damir Zucic */
/*=============================================================================
draw_labels.c
Purpose:
Draw atomic labels.
Input:
(1) Pointer to MolComplexS structure.
(2) Number of macromolecular complexes.
(3) Pointer to ConfigS structure.
(4) Pointer to GUIS structure.
Output:
(1) Labels drawn to hidden pixmap.
(2) Return value.
Return value:
The number of labels drawn.
=============================================================================*/
#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xos.h>
#include <X11/Xatom.h>
#include "defines.h"
#include "typedefs.h"
/*======draw labels:=========================================================*/
size_t DrawLabels_ (MolComplexS *mol_complexSP, int mol_complexesN,
ConfigS *configSP, GUIS *guiSP)
{
size_t labels_drawnN = 0;
int imageI, imagesN;
int left_edge[2], right_edge[2];
int mol_complexI;
MolComplexS *curr_mol_complexSP;
size_t atomsN, atomI;
AtomS *curr_atomSP;
int screen_x, screen_y;
static char stringA[SHORTSTRINGSIZE];
int string_length, text_width;
/* Number of images: */
if (configSP->stereoF) imagesN = 2;
else imagesN = 1;
/* Left and right image edge (in stereo mode there are two images): */
left_edge[0] = configSP->image_screen_x0[0];
right_edge[0] = configSP->image_screen_x1[0];
left_edge[1] = configSP->image_screen_x0[1];
right_edge[1] = configSP->image_screen_x1[1];
/* Prepare the text color: */
XSetForeground (guiSP->displaySP, guiSP->theGCA[0],
guiSP->main_winS.fg_colorID);
/* Check every macromolecular complex: */
for (mol_complexI = 0; mol_complexI < mol_complexesN; mol_complexI++)
{
/* Pointer to current macromolecular complex: */
curr_mol_complexSP = mol_complexSP + mol_complexI;
/* Prepare and check the number of atoms: */
atomsN = curr_mol_complexSP->atomsN;
if (atomsN == 0) continue;
/* Check every atom: */
for (atomI = 0; atomI < atomsN; atomI++)
{
/* Pointer to the current atom: */
curr_atomSP = curr_mol_complexSP->atomSP + atomI;
/* Check flag: */
if (curr_atomSP->labelF != 1) continue;
/* Check is atom hidden: */
if (curr_atomSP->hiddenF) continue;
/* Check is atom inside slab: */
if (!curr_atomSP->inside_slabF) continue;
/* Check is atom inside window: */
if (!curr_atomSP->inside_windowF) continue;
/* Draw one (mono) or two labels (stereo): */
for (imageI = 0; imageI < imagesN; imageI++)
{
/* Prepare the coordinates: */
screen_x = curr_atomSP->raw_atomS.screen_x[imageI];
screen_y = curr_atomSP->raw_atomS.screen_y;
/* Check is this atom really visible: */
if (screen_x < left_edge[imageI]) continue;
if (screen_x > right_edge[imageI]) continue;
/* Prepare label: */
if (curr_atomSP->raw_atomS.chainID == ' ')
{
sprintf (stringA, "%s %d %s%c",
curr_atomSP->raw_atomS.residue_nameA,
curr_atomSP->raw_atomS.residue_sequenceI,
curr_atomSP->raw_atomS.pure_atom_nameA,
curr_atomSP->raw_atomS.alt_location);
}
else
{
sprintf (stringA, "%s %d%c %s%c",
curr_atomSP->raw_atomS.residue_nameA,
curr_atomSP->raw_atomS.residue_sequenceI,
curr_atomSP->raw_atomS.chainID,
curr_atomSP->raw_atomS.pure_atom_nameA,
curr_atomSP->raw_atomS.alt_location);
}
/* String length: */
string_length = strlen (stringA);
/* Prepare the string size in pixels: */
text_width = XTextWidth (guiSP->main_winS.fontSP,
stringA, string_length);
/* Draw label: */
XDrawString (guiSP->displaySP,
guiSP->main_hidden_pixmapID,
guiSP->theGCA[0],
screen_x - text_width / 2, screen_y,
stringA, string_length);
/* Update the counter: */
labels_drawnN++;
} /* imageI loop */
} /* atomI loop */
} /* mol_complexI loop */
/* Return the number of labels which were drawn: */
return labels_drawnN;
}
/*===========================================================================*/
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