/**
* gtk_psfont_get_by_gdkfont:
* @font: a #GtkPSFont
* @height: font height
*
* Get #GdkFOnt by PS Font.
*
* Returns: a #GdkFont pointer.
*/
GdkFont *
gtk_psfont_get_gdkfont(GtkPSFont *font, gint height)
{
PangoFontDescription *font_desc;
GdkFont *gdkfont;
g_return_val_if_fail (font != NULL, NULL);
if (height <= 0) height = 1;
font_desc = gtk_psfont_get_font_description(font, height);
gdkfont = font_desc ? gdk_font_from_description(font_desc) : NULL;
if (font_desc)
pango_font_description_free(font_desc);
if (!gdkfont) {
font_desc = gtk_psfont_get_font_description(find_psfont(default_font), height);
gdkfont = font_desc ? gdk_font_from_description(font_desc) : NULL;
if (font_desc)
pango_font_description_free(font_desc);
if (gdkfont)
g_message ("Pango font %s %i (PS font %s) not found, using %s instead.",
font->pango_description, height, font->fontname, default_font);
else
g_warning ("Error, couldn't locate default font. Shouldn't happen.");
}
return gdkfont;
}
/* subfunction of gtk_plot_cairo_draw_string(). */
static gint
drawstring(GtkPlotPC *pc,
gint angle,
gint dx, gint dy,
GtkPSFont *psfont, gint height,
const gchar *text)
{
cairo_t *cairo = GTK_PLOT_CAIRO(pc)->cairo;
PangoLayout *layout = GTK_PLOT_CAIRO(pc)->layout;
PangoFontDescription *font;
PangoRectangle rect;
PangoFontMap *map;
gint ret_value;
gint dpi_cairo, dpi_screen;
GdkScreen *screen = gdk_screen_get_default();
if(!text || strlen(text) == 0) return 0;
cairo_save(cairo);
map = pango_cairo_font_map_get_default();
dpi_cairo = pango_cairo_font_map_get_resolution(PANGO_CAIRO_FONT_MAP(map));
dpi_screen = gdk_screen_get_resolution(screen);
height *= (double)dpi_screen/(double)dpi_cairo;
font = gtk_psfont_get_font_description(psfont, height);
pango_layout_set_font_description(GTK_PLOT_CAIRO(pc)->layout, font);
pango_layout_set_text(GTK_PLOT_CAIRO(pc)->layout, text, strlen(text));
pango_layout_get_extents(GTK_PLOT_CAIRO(pc)->layout, NULL, &rect);
if (psfont->i18n_latinfamily && psfont->vertical) {
/* vertical-writing CJK postscript fonts. */
return rect.height;
}
else
{
/* horizontal writing */
if(angle == 90)
// cairo_translate(cairo, dx, dy-PANGO_PIXELS(rect.width));
cairo_translate(cairo, dx, dy);
else if(angle == 270)
cairo_translate(cairo, dx+PANGO_PIXELS(rect.height), dy);
else if(angle == 180)
cairo_translate(cairo, dx-PANGO_PIXELS(rect.width), dy);
else
cairo_translate(cairo, dx, dy);
}
cairo_rotate(cairo, -angle * G_PI / 180);
pango_cairo_update_layout(cairo, layout);
pango_cairo_show_layout(cairo, layout);
cairo_restore(cairo);
pango_font_description_free(font);
ret_value = (angle == 0 || angle == 180) ? rect.width : rect.height;
return PANGO_PIXELS(rect.width);
}
/* subfunction of gtk_plot_gdk_draw_string(). */
static gint
drawstring(GtkPlotPC *pc,
GdkDrawable *drawable,
GdkGC *gc,
gint angle,
gint dx, gint dy,
GtkPSFont *psfont, gint height,
const gchar *text)
{
PangoFontDescription *font;
PangoRectangle rect;
const gchar *aux = text;
gint ret_value;
if(!text || strlen(text) == 0) return 0;
font = gtk_psfont_get_font_description(psfont, height);
pango_layout_set_font_description(GTK_PLOT_GDK(pc)->layout, font);
pango_layout_set_text(GTK_PLOT_GDK(pc)->layout, text, strlen(text));
pango_layout_get_extents(GTK_PLOT_GDK(pc)->layout, NULL, &rect);
if (psfont->i18n_latinfamily && psfont->vertical) {
/* vertical-writing CJK postscript fonts. */
return rect.height;
}
else
{
/* horizontal writing */
if(angle == 90)
gdk_draw_layout (drawable, gc, dx, dy-PANGO_PIXELS(rect.width), GTK_PLOT_GDK(pc)->layout);
else if(angle == 180)
gdk_draw_layout (drawable, gc, dx-PANGO_PIXELS(rect.width), dy, GTK_PLOT_GDK(pc)->layout);
else
gdk_draw_layout (drawable, gc, dx, dy, GTK_PLOT_GDK(pc)->layout);
/*
gdk_draw_layout (GTK_PLOT_GDK(pc)->drawable, gc, dx, dy, GTK_PLOT_GDK(pc)->layout);
*/
}
pango_font_description_free(font);
ret_value = (angle == 0 || angle == 180) ? rect.width : rect.height;
return PANGO_PIXELS(rect.width);
}
static void
gtk_plot_cairo_draw_string (GtkPlotPC *pc,
gint tx, gint ty,
gint angle,
const GdkColor *fg,
const GdkColor *bg,
gboolean transparent,
gint border,
gint border_space,
gint border_width,
gint shadow_width,
const gchar *font_name,
gint font_height,
GtkJustification just,
const gchar *text)
{
cairo_t *cairo = GTK_PLOT_CAIRO(pc)->cairo;
GList *family = NULL;
gint x0, y0;
gint old_width, old_height;
gboolean bold, italic;
gint fontsize;
gint ascent, descent;
gint numf;
gint width, height;
gint x, y;
gint i;
PangoFontDescription *font = NULL, *latin_font = NULL;
GtkPSFont *psfont, *base_psfont, *latin_psfont;
gchar subs[2], insert_char;
const gchar *aux = text;
const gchar *lastchar = text;
const gchar *wtext = text;
const gchar *xaux = text;
gchar *new_text; /* Support Tiny C compiler : Original : gchar new_text[strlen(text)+1];*/
gchar num[4];
PangoRectangle rect;
PangoLayout *layout = NULL;
gint real_x, real_y, real_width, real_height;
GdkColor real_fg = *fg;
GdkColor real_bg = *bg;
gint sign_x = 1, sign_y = 0;
gint old_tx = tx, old_ty = ty;
if (!cairo)
return;
layout = GTK_PLOT_CAIRO(pc)->layout;
cairo_save(cairo);
gtk_plot_cairo_set_color(pc, fg);
/*
font_name = "sans";
desc = pango_font_description_from_string(font_name);
// Since the name does not contain the size yet... Also there is some
// factor that I have to figure out...
pango_font_description_set_size (desc, font_height *0.9 * PANGO_SCALE);
pango_layout_set_font_description(layout, desc);
pango_layout_set_text(layout, text, -1);
cairo_save(cairo);
cairo_translate(cairo, tx, ty);
cairo_rotate(cairo, angle * G_PI / 180);
gtk_plot_cairo_set_color(pc, fg);
pango_cairo_update_layout(cairo, layout);
PangoFontMetrics *metrics = NULL;
metrics = pango_context_get_metrics(pango_layout_get_context(layout), desc, gtk_get_default_language());
pango_layout_get_size (layout, &width, &height);
ascent = pango_font_metrics_get_ascent(metrics);
descent = pango_font_metrics_get_descent(metrics);
if (just == GTK_JUSTIFY_RIGHT)
cairo_move_to(cairo, -PANGO_PIXELS(width),
-PANGO_PIXELS(ascent)
);
else if (just == GTK_JUSTIFY_CENTER)
cairo_move_to(cairo, -PANGO_PIXELS(width)/2.0,
-PANGO_PIXELS(ascent)
);
else if (just == GTK_JUSTIFY_LEFT)
cairo_move_to(cairo, 0,
-PANGO_PIXELS(ascent)
);
pango_cairo_show_layout(cairo, layout);
cairo_restore(cairo);
*/
gtk_plot_text_get_size(text, angle, font_name, font_height, &width, &height, &ascent, &descent);
if(height == 0 || width == 0) return;
old_width = width;
old_height = height;
if(angle == 90 || angle == 270)
{
old_width = height;
old_height = width;
}
switch(angle){
case 90:
sign_x = 0;
sign_y = -1;
break;
case 180:
sign_x = -1;
sign_y = 0;
break;
case 270:
sign_x = 0;
sign_y = 1;
break;
case 0:
default:
sign_x = 1;
sign_y = 0;
break;
}
switch(just){
case GTK_JUSTIFY_LEFT:
switch(angle){
case 0:
ty -= ascent;
break;
case 90:
ty -= height;
tx -= ascent;
break;
case 180:
tx -= width;
ty -= descent;
break;
case 270:
tx -= descent;
break;
}
old_tx = tx;
old_ty = ty;
break;
case GTK_JUSTIFY_RIGHT:
switch(angle){
case 0:
tx -= width;
ty -= ascent;
old_tx -= width;
old_ty -= ascent;
break;
case 90:
tx -= ascent;
ty += height;
old_tx -= ascent;
break;
case 180:
tx += width;
ty -= descent;
old_ty -= descent;
break;
case 270:
tx -= descent;
old_tx -= descent;
old_ty -= height;
break;
}
break;
case GTK_JUSTIFY_CENTER:
default:
switch(angle){
case 0:
tx -= width / 2.;
ty -= ascent;
old_tx -= width / 2.;
old_ty -= ascent;
break;
case 90:
tx -= ascent;
ty += height / 2.;
old_tx -= ascent;
old_ty -= height / 2.;
break;
case 180:
tx += width / 2.;
ty -= descent;
old_tx -= width / 2.;
old_ty -= descent;
break;
case 270:
tx -= descent;
ty -= height / 2.;
old_tx -= descent;
old_ty -= height / 2.;
break;
}
}
real_x = tx;
real_y = ty;
real_width = width;
real_height = height;
if(!transparent){
gtk_plot_cairo_set_color(pc, &real_bg);
gtk_plot_cairo_draw_rectangle(pc, TRUE, old_tx, old_ty, old_width, old_height);
}
gtk_psfont_get_families(&family, &numf);
base_psfont = psfont = gtk_psfont_get_by_name(font_name);
font = gtk_psfont_get_font_description(psfont, font_height);
italic = psfont->italic;
bold = psfont->bold;
fontsize = font_height;
x0 = x = 0;
y0 = y = 0;
if (psfont->i18n_latinfamily) {
latin_psfont = gtk_psfont_get_by_family(psfont->i18n_latinfamily, italic,
bold);
if(latin_font) pango_font_description_free(latin_font);
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
} else {
latin_psfont = NULL;
latin_font = NULL;
}
gtk_plot_cairo_set_color(pc, &real_fg);
aux = text;
while(aux && *aux != '\0' && *aux != '\n'){
if(*aux == '\\'){
aux = g_utf8_next_char(aux);
switch(*aux){
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7': case '9':
psfont = gtk_psfont_get_by_family((gchar *)g_list_nth_data(family, *aux-'0'), italic, bold);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
aux = g_utf8_next_char(aux);
break;
case '8': case 'g':
psfont = gtk_psfont_get_by_family("Symbol", italic, bold);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
aux = g_utf8_next_char(aux);
break;
case 'B':
bold = TRUE;
psfont = gtk_psfont_get_by_family(psfont->family, italic, bold);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if(latin_font){
latin_font = NULL;
}
if (psfont->i18n_latinfamily) {
latin_psfont = gtk_psfont_get_by_family(psfont->i18n_latinfamily,
italic, bold);
if(latin_font) pango_font_description_free(latin_font);
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
aux = g_utf8_next_char(aux);
break;
case 'x':
xaux = aux + 1;
for (i=0; i<3; i++){
if (xaux[i] >= '0' && xaux[i] <= '9')
num[i] = xaux[i];
else
break;
}
if (i < 3){
aux = g_utf8_next_char(aux);
break;
}
num[3] = '\0';
insert_char = (gchar)atoi(num);
subs[0] = insert_char;
subs[1] = '\0';
pango_layout_set_font_description(layout, font);
pango_layout_set_text(layout, subs, 1);
pango_layout_get_extents(layout, NULL, &rect);
x += sign_x*PANGO_PIXELS(rect.width);
y += sign_y*PANGO_PIXELS(rect.width);
aux += 4;
lastchar = aux - 1;
break;
case 'i':
italic = TRUE;
psfont = gtk_psfont_get_by_family(psfont->family, italic, bold);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if (psfont->i18n_latinfamily) {
latin_psfont = gtk_psfont_get_by_family(psfont->i18n_latinfamily,
italic, bold);
if(latin_font) pango_font_description_free(latin_font);
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
aux = g_utf8_next_char(aux);
break;
case 'S': case '^':
fontsize = (int)((gdouble)fontsize * 0.6 + 0.5);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if (psfont->i18n_latinfamily) {
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
if(angle == 180)
y = y0 + fontsize;
else if(angle == 270)
x = x0 + sign_y*fontsize;
aux = g_utf8_next_char(aux);
break;
case 's': case '_':
fontsize = (int)((gdouble)fontsize * 0.6 + 0.5);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if(angle == 0)
y = y0 + fontsize;
else if(angle == 90)
x = x0 - sign_y*fontsize;
if (psfont->i18n_latinfamily) {
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
aux = g_utf8_next_char(aux);
break;
case '+':
fontsize += 3;
y -= sign_x*3;
x += sign_y*3;
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if (psfont->i18n_latinfamily) {
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
aux = g_utf8_next_char(aux);
break;
case '-':
fontsize -= 3;
y += sign_x*3;
x -= sign_y*3;
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if (psfont->i18n_latinfamily) {
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
aux = g_utf8_next_char(aux);
break;
case 'N':
psfont = base_psfont;
fontsize = font_height;
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if(angle == 0 || angle == 180)
y = y0;
else
x = x0;
italic = psfont->italic;
bold = psfont->bold;
aux = g_utf8_next_char(aux);
break;
case 'b':
if (lastchar) {
const gchar *aux2 = lastchar;
gint i = g_utf8_prev_char(lastchar) != --aux2 ? 2 : 1;
pango_layout_set_text(layout, lastchar, i);
pango_layout_get_extents(layout, NULL, &rect);
x -= sign_x*PANGO_PIXELS(rect.width);
y -= sign_y*PANGO_PIXELS(rect.width);
if (lastchar == wtext)
lastchar = NULL;
else
lastchar = g_utf8_prev_char(lastchar);
} else {
pango_layout_set_text(layout, "X", 1);
pango_layout_get_extents(layout, NULL, &rect);
x -= sign_x*PANGO_PIXELS(rect.width);
y -= sign_y*PANGO_PIXELS(rect.width);
}
aux = g_utf8_next_char(aux);
break;
default:
if(aux && *aux != '\0' && *aux !='\n'){
gint new_width = 0;
new_width = drawstring(pc, angle, tx+x, ty+y,
psfont, fontsize, aux);
x += sign_x * new_width;
y += sign_y * new_width;
lastchar = aux;
aux = g_utf8_next_char(aux);
}
break;
}
} else {
gint new_len = 0;
gint new_width = 0;
lastchar = aux;
while(aux && *aux != '\0' && *aux !='\n' && *aux != '\\'){
xaux = aux;
new_len += g_utf8_next_char(aux) != ++xaux ? 2 : 1;
aux = g_utf8_next_char(aux);
}
xaux = lastchar;
new_text = (gchar *) g_new0(gchar , strlen(text)+1); /* Tiny C Compiler support */
for(i = 0; i < new_len; i++) new_text[i] = *xaux++;
new_text[new_len] = '\0';
new_width = drawstring(pc, angle, tx+x, ty+y,
psfont, fontsize, new_text);
x += sign_x * new_width;
y += sign_y * new_width;
lastchar = aux;
g_free (new_text);
}
}
if(latin_font) pango_font_description_free(latin_font);
/* border */
gtk_plot_cairo_set_color(pc, &real_fg);
gtk_plot_pc_set_dash(pc, 0, NULL, 0);
gtk_plot_pc_set_lineattr(pc, border_width, 0, 0, 0);
switch(border){
case GTK_PLOT_BORDER_SHADOW:
gtk_plot_pc_draw_rectangle(pc,
TRUE,
old_tx - border_space + shadow_width,
old_ty + height + border_space,
width + 2 * border_space, shadow_width);
gtk_plot_pc_draw_rectangle(pc,
TRUE,
old_tx + width + border_space,
old_ty - border_space + shadow_width,
shadow_width, height + 2 * border_space);
case GTK_PLOT_BORDER_LINE:
gtk_plot_pc_draw_rectangle(pc,
FALSE,
old_tx - border_space, old_ty - border_space,
width + 2*border_space, height + 2*border_space);
case GTK_PLOT_BORDER_NONE:
default:
break;
}
cairo_restore(cairo);
return;
}
static void
gtk_plot_gdk_draw_string (GtkPlotPC *pc,
gint tx, gint ty,
gint angle,
const GdkColor *fg,
const GdkColor *bg,
gboolean transparent,
gint border,
gint border_space,
gint border_width,
gint shadow_width,
const gchar *font_name,
gint font_height,
GtkJustification just,
const gchar *text)
{
GdkGC *gc;
GList *family = NULL;
gint x0, y0;
gint old_width, old_height;
gboolean bold, italic;
gint fontsize;
gint ascent, descent;
gint numf;
gint width, height;
gint x, y;
gint i;
PangoFontDescription *font = NULL, *latin_font = NULL;
GtkPSFont *psfont, *base_psfont, *latin_psfont;
gchar subs[2], insert_char;
const gchar *aux = text;
const gchar *lastchar = text;
const gchar *wtext = text;
const gchar *xaux = text;
gchar new_text[strlen(text)+1];
gchar num[4];
PangoRectangle rect;
PangoFontMetrics *metrics = NULL;
PangoLayout *layout = NULL;
gint real_x, real_y, real_width, real_height;
GdkColor real_fg = *fg;
GdkColor real_bg = *bg;
PangoMatrix matrix = PANGO_MATRIX_INIT;
PangoContext *context = GTK_PLOT_GDK(pc)->context;
GdkDrawable *drawable = GTK_PLOT_GDK(pc)->drawable;
gint sign_x = 1, sign_y = 0;
if(!GTK_PLOT_GDK(pc)->drawable) return;
if(!GTK_PLOT_GDK(pc)->gc) return;
if(!text || strlen(text) == 0) return;
gc = GTK_PLOT_GDK(pc)->gc;
layout = GTK_PLOT_GDK(pc)->layout;
if(!gc) return;
gtk_plot_text_get_size(text, angle, font_name, font_height, &width, &height, &ascent, &descent);
if(height == 0 || width == 0) return;
old_width = width;
old_height = height;
if(angle == 90 || angle == 270)
{
old_width = height;
old_height = width;
}
switch(angle){
case 90:
sign_x = 0;
sign_y = -1;
break;
case 180:
sign_x = -1;
sign_y = 0;
break;
case 270:
sign_x = 0;
sign_y = 1;
break;
case 0:
default:
sign_x = 1;
sign_y = 0;
break;
}
switch(just){
case GTK_JUSTIFY_LEFT:
switch(angle){
case 0:
ty -= ascent;
break;
case 90:
ty -= height;
tx -= ascent;
break;
case 180:
tx -= width;
ty -= descent;
break;
case 270:
tx -= descent;
break;
}
break;
case GTK_JUSTIFY_RIGHT:
switch(angle){
case 0:
tx -= width;
ty -= ascent;
break;
case 90:
tx -= ascent;
ty += height;
break;
case 180:
tx += width;
ty -= descent;
break;
case 270:
tx -= descent;
break;
}
break;
case GTK_JUSTIFY_CENTER:
default:
switch(angle){
case 0:
tx -= width / 2.;
ty -= ascent;
break;
case 90:
tx -= ascent;
ty += height / 2.;
break;
case 180:
tx += width / 2.;
ty -= descent;
break;
case 270:
tx -= descent;
ty -= height / 2.;
break;
}
}
real_x = tx;
real_y = ty;
real_width = width;
real_height = height;
pango_matrix_rotate (&matrix, angle);
pango_context_set_matrix (context, &matrix);
pango_layout_context_changed (layout);
if(!transparent){
gdk_gc_set_foreground(gc, &real_bg);
gdk_draw_rectangle(drawable, gc, TRUE, tx, ty, old_width, old_height);
}
/* TEST */
/*
gdk_draw_rectangle(text_pixmap, gc, FALSE, 0, 0, old_width-1, old_height-1);
*/
gtk_psfont_get_families(&family, &numf);
base_psfont = psfont = gtk_psfont_get_by_name(font_name);
font = gtk_psfont_get_font_description(psfont, font_height);
italic = psfont->italic;
bold = psfont->bold;
fontsize = font_height;
x0 = x = 0;
y0 = y = 0;
if (psfont->i18n_latinfamily) {
latin_psfont = gtk_psfont_get_by_family(psfont->i18n_latinfamily, italic,
bold);
if(latin_font) pango_font_description_free(latin_font);
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
} else {
latin_psfont = NULL;
latin_font = NULL;
}
gdk_gc_set_foreground(gc, &real_fg);
aux = text;
while(aux && *aux != '\0' && *aux != '\n'){
if(*aux == '\\'){
aux = g_utf8_next_char(aux);
switch(*aux){
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7': case '9':
psfont = gtk_psfont_get_by_family((gchar *)g_list_nth_data(family, *aux-'0'), italic, bold);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
aux = g_utf8_next_char(aux);
break;
case '8': case 'g':
psfont = gtk_psfont_get_by_family("Symbol", italic, bold);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
aux = g_utf8_next_char(aux);
break;
case 'B':
bold = TRUE;
psfont = gtk_psfont_get_by_family(psfont->family, italic, bold);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if(latin_font){
latin_font = NULL;
}
if (psfont->i18n_latinfamily) {
latin_psfont = gtk_psfont_get_by_family(psfont->i18n_latinfamily,
italic, bold);
if(latin_font) pango_font_description_free(latin_font);
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
aux = g_utf8_next_char(aux);
break;
case 'x':
xaux = aux + 1;
for (i=0; i<3; i++){
if (xaux[i] >= '0' && xaux[i] <= '9')
num[i] = xaux[i];
else
break;
}
if (i < 3){
aux = g_utf8_next_char(aux);
break;
}
num[3] = '\0';
insert_char = (gchar)atoi(num);
subs[0] = insert_char;
subs[1] = '\0';
pango_layout_set_font_description(layout, font);
pango_layout_set_text(layout, subs, 1);
pango_layout_get_extents(layout, NULL, &rect);
x += sign_x*PANGO_PIXELS(rect.width);
y += sign_y*PANGO_PIXELS(rect.width);
aux += 4;
lastchar = aux - 1;
break;
case 'i':
italic = TRUE;
psfont = gtk_psfont_get_by_family(psfont->family, italic, bold);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if (psfont->i18n_latinfamily) {
latin_psfont = gtk_psfont_get_by_family(psfont->i18n_latinfamily,
italic, bold);
if(latin_font) pango_font_description_free(latin_font);
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
aux = g_utf8_next_char(aux);
break;
case 'S': case '^':
fontsize = (int)((gdouble)fontsize * 0.6 + 0.5);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if(metrics) pango_font_metrics_unref(metrics);
metrics = pango_context_get_metrics(pango_layout_get_context(layout), font, pango_context_get_language(pango_layout_get_context(layout)));
if (psfont->i18n_latinfamily) {
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
if(angle == 180)
y = y0 + fontsize;
else if(angle == 270)
x = x0 + sign_y*fontsize;
aux = g_utf8_next_char(aux);
break;
case 's': case '_':
fontsize = (int)((gdouble)fontsize * 0.6 + 0.5);
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if(metrics) pango_font_metrics_unref(metrics);
metrics = pango_context_get_metrics(pango_layout_get_context(layout), font, pango_context_get_language(pango_layout_get_context(layout)));
if(angle == 0)
y = y0 + fontsize;
else if(angle == 90)
x = x0 - sign_y*fontsize;
if (psfont->i18n_latinfamily) {
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
aux = g_utf8_next_char(aux);
break;
case '+':
fontsize += 3;
y -= sign_x*3;
x += sign_y*3;
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if (psfont->i18n_latinfamily) {
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
aux = g_utf8_next_char(aux);
break;
case '-':
fontsize -= 3;
y += sign_x*3;
x -= sign_y*3;
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if (psfont->i18n_latinfamily) {
latin_font = gtk_psfont_get_font_description(latin_psfont, fontsize);
}
aux = g_utf8_next_char(aux);
break;
case 'N':
psfont = base_psfont;
fontsize = font_height;
pango_font_description_free(font);
font = gtk_psfont_get_font_description(psfont, fontsize);
if(angle == 0 || angle == 180)
y = y0;
else
x = x0;
italic = psfont->italic;
bold = psfont->bold;
aux = g_utf8_next_char(aux);
break;
case 'b':
if (lastchar) {
const gchar *aux2 = lastchar;
gint i = g_utf8_prev_char(lastchar) != --aux2 ? 2 : 1;
pango_layout_set_text(layout, lastchar, i);
pango_layout_get_extents(layout, NULL, &rect);
x -= sign_x*PANGO_PIXELS(rect.width);
y -= sign_y*PANGO_PIXELS(rect.width);
if (lastchar == wtext)
lastchar = NULL;
else
lastchar = g_utf8_prev_char(lastchar);
} else {
pango_layout_set_text(layout, "X", 1);
pango_layout_get_extents(layout, NULL, &rect);
x -= sign_x*PANGO_PIXELS(rect.width);
y -= sign_y*PANGO_PIXELS(rect.width);
}
aux = g_utf8_next_char(aux);
break;
default:
if(aux && *aux != '\0' && *aux !='\n'){
gint new_width = 0;
new_width = drawstring(pc, drawable, gc, angle, tx+x, ty+y,
psfont, fontsize, aux);
x += sign_x * new_width;
y += sign_y * new_width;
lastchar = aux;
aux = g_utf8_next_char(aux);
}
break;
}
} else {
gint new_len = 0;
gint new_width = 0;
lastchar = aux;
while(aux && *aux != '\0' && *aux !='\n' && *aux != '\\'){
xaux = aux;
new_len += g_utf8_next_char(aux) != ++xaux ? 2 : 1;
aux = g_utf8_next_char(aux);
}
xaux = lastchar;
for(i = 0; i < new_len; i++) new_text[i] = *xaux++;
new_text[new_len] = '\0';
new_width = drawstring(pc, drawable, gc, angle, tx+x, ty+y,
psfont, fontsize, new_text);
x += sign_x * new_width;
y += sign_y * new_width;
lastchar = aux;
}
}
pango_font_description_free(font);
if(latin_font) pango_font_description_free(latin_font);
if(metrics) pango_font_metrics_unref(metrics);
/* border */
gdk_gc_set_foreground(gc, &real_fg);
gtk_plot_pc_set_dash(pc, 0, NULL, 0);
gtk_plot_pc_set_lineattr(pc, border_width, 0, 0, 0);
switch(border){
case GTK_PLOT_BORDER_SHADOW:
gtk_plot_pc_draw_rectangle(pc,
TRUE,
tx - border_space + shadow_width,
ty + height + border_space,
width + 2 * border_space, shadow_width);
gtk_plot_pc_draw_rectangle(pc,
TRUE,
tx + width + border_space,
ty - border_space + shadow_width,
shadow_width, height + 2 * border_space);
case GTK_PLOT_BORDER_LINE:
gtk_plot_pc_draw_rectangle(pc,
FALSE,
tx - border_space, ty - border_space,
width + 2*border_space, height + 2*border_space);
case GTK_PLOT_BORDER_NONE:
default:
break;
}
return;
}
