void rotate_text(GdkDrawable *wn, GdkGC *gc, PangoFontDescription *font, const char *text, int angle, gint x0, gint y0)
{
#if HAVE_PANGO_MATRIX_ROTATE
PangoLayout *layout;
PangoContext *context;
PangoMatrix matrix = PANGO_MATRIX_INIT;
context = gdk_pango_context_get();
layout = pango_layout_new(context);
pango_matrix_rotate(&matrix, angle);
pango_context_set_matrix(context, &matrix);
pango_layout_set_font_description(layout, font);
pango_layout_set_text(layout, text, -1);
gdk_draw_layout(wn, gc, x0, y0, layout);
g_object_unref(layout);
g_object_unref(context);
#endif
}
int main(int argc, char *argv[])
{
gdImagePtr im;
char *text;
FILE *fp;
int w,h;
int margin_x, margin_y;
gdPangoContext *context;
gdPangoColors default_colors;
PangoContext *pangocontext;
PangoMatrix rotated_matrix = PANGO_MATRIX_INIT;
PangoLayout *layout;
gdPangoInit();
default_colors.fg = gdTrueColorAlpha(0, 255, 255, 0);
default_colors.bg = gdTrueColorAlpha(255, 255, 255, 0);
default_colors.alpha = 0;
/*
text = readFile("russian.txt");
text = readFile("arabic.txt");
text = readFile("hebrew.txt");
text = readFile("german.txt");
text = readFile("english.txt");
text = readFile("japanese.txt");
*/
text = readFile("english.txt");
context = gdPangoCreateContext();
gdPangoSetDpi(context, 96, 96);
gdPangoSetMinimumSize(context, 800, 200);
gdPangoSetDefaultColor(context, &default_colors);
gdPangoSetMarkup(context, text, -1);
free(text);
pangocontext = gdPangoGetPangoContext(context);
layout = gdPangoGetPangoLayout(context);
pango_context_set_base_dir(pangocontext, PANGO_DIRECTION_LTR);
w = gdPangoGetLayoutWidth(context);
h = gdPangoGetLayoutHeight(context);
margin_x = 0;
margin_y = 0;
im = gdImageCreateTrueColor(800, 800);
gdPangoRenderTo(context, im, margin_x, margin_y);
fp = fopen("c.png", "wb");
gdImagePng(im, fp);
fclose(fp);
gdImageDestroy(im);
context->angle = -30;
if (context->angle != 0.0) {
pango_matrix_rotate (&rotated_matrix, context->angle);
pango_context_set_matrix(pangocontext, &rotated_matrix);
pango_layout_set_alignment(layout, PANGO_ALIGN_RIGHT);
pango_layout_context_changed (layout);
context->matrix = &rotated_matrix;
}
/* Render to a new image, sized for a rotated text */
im = gdPangoCreateSurfaceDraw(context);
fp = fopen("d.png", "wb");
gdImagePng(im, fp);
fclose(fp);
gdPangoFreeContext(context);
gdImageDestroy(im);
return 0;
}
static void cdtext(cdCtxCanvas *ctxcanvas, int x, int y, const char *s, int len)
{
PangoFontMetrics* metrics;
int w, h, desc, dir = -1;
int ox = x, oy = y;
pango_layout_set_text(ctxcanvas->fontlayout, sStrConvertToUTF8(ctxcanvas, s, len), -1);
pango_layout_get_pixel_size(ctxcanvas->fontlayout, &w, &h);
metrics = pango_context_get_metrics(ctxcanvas->fontcontext, ctxcanvas->fontdesc, pango_context_get_language(ctxcanvas->fontcontext));
desc = (((pango_font_metrics_get_descent(metrics)) + PANGO_SCALE/2) / PANGO_SCALE);
switch (ctxcanvas->canvas->text_alignment)
{
case CD_BASE_RIGHT:
case CD_NORTH_EAST:
case CD_EAST:
case CD_SOUTH_EAST:
x = x - w;
break;
case CD_BASE_CENTER:
case CD_CENTER:
case CD_NORTH:
case CD_SOUTH:
x = x - w/2;
break;
case CD_BASE_LEFT:
case CD_NORTH_WEST:
case CD_WEST:
case CD_SOUTH_WEST:
x = x;
break;
}
if (ctxcanvas->canvas->invert_yaxis)
dir = 1;
switch (ctxcanvas->canvas->text_alignment)
{
case CD_BASE_LEFT:
case CD_BASE_CENTER:
case CD_BASE_RIGHT:
y = y - (dir*h - desc);
break;
case CD_SOUTH_EAST:
case CD_SOUTH_WEST:
case CD_SOUTH:
y = y - (dir*h);
break;
case CD_NORTH_EAST:
case CD_NORTH:
case CD_NORTH_WEST:
y = y;
break;
case CD_CENTER:
case CD_EAST:
case CD_WEST:
y = y - (dir*(h/2));
break;
}
if(!ctxcanvas->canvas->use_matrix)
{
ctxcanvas->fontmatrix.xx = 1; ctxcanvas->fontmatrix.xy = 0;
ctxcanvas->fontmatrix.yx = 0; ctxcanvas->fontmatrix.yy = 1;
ctxcanvas->fontmatrix.x0 = 0; ctxcanvas->fontmatrix.y0 = 0;
}
if (ctxcanvas->canvas->use_matrix || ctxcanvas->canvas->text_orientation)
{
PangoRectangle rect;
double angle = ctxcanvas->canvas->text_orientation;
if (ctxcanvas->canvas->text_orientation)
pango_matrix_rotate(&ctxcanvas->fontmatrix, angle);
pango_context_set_matrix (ctxcanvas->fontcontext, &ctxcanvas->fontmatrix);
pango_layout_context_changed (ctxcanvas->fontlayout);
pango_layout_get_pixel_extents(ctxcanvas->fontlayout, NULL, &rect);
#if PANGO_VERSION_CHECK(1,16,0)
pango_matrix_transform_pixel_rectangle(&ctxcanvas->fontmatrix, &rect);
#endif
if (ctxcanvas->canvas->text_orientation)
{
double cos_angle = cos(angle*CD_DEG2RAD);
double sin_angle = sin(angle*CD_DEG2RAD);
cdRotatePoint(ctxcanvas->canvas, x, y, ox, oy, &x, &y, sin_angle, cos_angle);
}
if (ctxcanvas->canvas->use_matrix)
cdMatrixTransformPoint(ctxcanvas->xmatrix, x, y, &x, &y);
/* Defines the new position (X,Y), considering the Pango rectangle transformed */
x += (int)rect.x;
y += (int)rect.y;
}
cdgdkCheckSolidStyle(ctxcanvas, 1);
if (ctxcanvas->canvas->new_region)
{
GdkRegion *rgn;
gint *idx;
gint range;
pango_layout_line_get_x_ranges(pango_layout_get_line(ctxcanvas->fontlayout, 0), 0, len, &idx, &range);
/* TODO: this is only the bounding box of the layout, not the text itself,
must transform the text into a polygon. */
rgn = gdk_pango_layout_get_clip_region(ctxcanvas->fontlayout, x, y, idx, range);
sCombineRegion(ctxcanvas, rgn);
}
else
gdk_draw_layout(ctxcanvas->wnd, ctxcanvas->gc, x, y, ctxcanvas->fontlayout);
pango_context_set_matrix(ctxcanvas->fontcontext, NULL);
cdgdkCheckSolidStyle(ctxcanvas, 0);
pango_font_metrics_unref(metrics);
}
void iupdrvDrawText(IdrawCanvas* dc, const char* text, int len, int x, int y, int w, int h, long color, const char* font, int flags, double text_orientation)
{
PangoLayout* fontlayout = (PangoLayout*)iupgtkGetPangoLayout(font);
PangoAlignment alignment = PANGO_ALIGN_LEFT;
GdkColor c;
PangoContext* fontcontext = NULL;
int layout_w = w, layout_h = h;
int layout_center = flags & IUP_DRAW_LAYOUTCENTER;
if (text_orientation && layout_center)
iupDrawGetTextInnerBounds(w, h, text_orientation, &layout_w, &layout_h);
iupgdkColorSet(&c, color);
gdk_gc_set_rgb_fg_color(dc->pixmap_gc, &c);
text = iupgtkStrConvertToSystemLen(text, &len);
pango_layout_set_text(fontlayout, text, len);
if (flags & IUP_DRAW_RIGHT)
alignment = PANGO_ALIGN_RIGHT;
else if (flags & IUP_DRAW_CENTER)
alignment = PANGO_ALIGN_CENTER;
if (flags & IUP_DRAW_WRAP)
{
pango_layout_set_width(fontlayout, iupGTK_PIXELS2PANGOUNITS(layout_w));
#ifdef PANGO_VERSION_CHECK
#if PANGO_VERSION_CHECK(1,2,0)
pango_layout_set_height(fontlayout, iupGTK_PIXELS2PANGOUNITS(layout_h));
#endif
#endif
}
else if (flags & IUP_DRAW_ELLIPSIS)
{
pango_layout_set_width(fontlayout, iupGTK_PIXELS2PANGOUNITS(layout_w));
#ifdef PANGO_VERSION_CHECK
#if PANGO_VERSION_CHECK(1,2,0)
pango_layout_set_height(fontlayout, iupGTK_PIXELS2PANGOUNITS(layout_h));
#endif
#endif
pango_layout_set_ellipsize(fontlayout, PANGO_ELLIPSIZE_END);
}
pango_layout_set_alignment(fontlayout, alignment);
if (flags & IUP_DRAW_CLIP)
{
GdkRectangle rect;
rect.x = x;
rect.y = y;
rect.width = w;
rect.height = h;
gdk_gc_set_clip_rectangle(dc->pixmap_gc, &rect);
}
if (text_orientation)
{
PangoRectangle rect;
PangoMatrix fontmatrix = PANGO_MATRIX_INIT;
fontcontext = pango_layout_get_context(fontlayout);
pango_matrix_rotate(&fontmatrix, text_orientation);
pango_context_set_matrix(fontcontext, &fontmatrix);
pango_layout_context_changed(fontlayout);
pango_layout_get_pixel_extents(fontlayout, NULL, &rect);
#ifdef PANGO_VERSION_CHECK
#if PANGO_VERSION_CHECK(1,16,0)
pango_matrix_transform_pixel_rectangle(&fontmatrix, &rect);
#endif
#endif
/* Adjust the position considering the Pango rectangle transformed */
if (layout_center)
{
x += (w - rect.width) / 2;
y += (h - rect.height) / 2;
}
else
{
x += (int)rect.x;
y += (int)rect.y;
}
}
gdk_draw_layout(dc->pixmap, dc->pixmap_gc, x, y, fontlayout);
/* restore settings */
if ((flags & IUP_DRAW_WRAP) || (flags & IUP_DRAW_ELLIPSIS))
{
pango_layout_set_width(fontlayout, -1);
#ifdef PANGO_VERSION_CHECK
#if PANGO_VERSION_CHECK(1,2,0)
pango_layout_set_height(fontlayout, -1);
#endif
#endif
}
if (flags & IUP_DRAW_ELLIPSIS)
pango_layout_set_ellipsize(fontlayout, PANGO_ELLIPSIZE_NONE);
if (flags & IUP_DRAW_CLIP)
gdk_gc_set_clip_region(dc->pixmap_gc, NULL);
if (text_orientation)
pango_context_set_matrix(fontcontext, NULL);
}
void render_text(GdkDrawable *da, GdkGC *gc, int x, int y, double angle,
const char *s, const char *font, double xalign, double yalign,
int xmax, int ymax)
{
GdkScreen *screen;
PangoRenderer *renderer;
PangoContext *context;
PangoLayout *layout;
PangoFontDescription *desc;
int width, height;
PangoMatrix m = PANGO_MATRIX_INIT;
double f_min, f;
/* set up the renderer */
screen = gdk_drawable_get_screen(da);
renderer = gdk_pango_renderer_get_default(screen);
gdk_pango_renderer_set_drawable(GDK_PANGO_RENDERER(renderer), da);
gdk_pango_renderer_set_gc(GDK_PANGO_RENDERER(renderer), gc);
/* start preparing the layout */
context = gdk_pango_context_get_for_screen(screen);
layout = pango_layout_new(context);
pango_layout_set_text(layout, s, -1);
/* apply the font */
desc = pango_font_description_from_string(font);
pango_layout_set_font_description(layout, desc);
pango_font_description_free(desc);
/* align and position the text */
pango_layout_get_size(layout, &width, &height);
f_min = 1.0;
if (xmax) {
f = xmax/((double) width/PANGO_SCALE);
if (f < f_min)
f_min = f;
}
if (ymax) {
f = ymax/((double) height/PANGO_SCALE);
if (f < f_min)
f_min = f;
}
if (f_min < MIN_FONT_SCALE)
f_min = MIN_FONT_SCALE;
pango_matrix_translate(&m, x, y);
pango_matrix_rotate(&m, angle);
pango_matrix_translate(&m,
-xalign*f_min*width/PANGO_SCALE,
(yalign-1)*f_min*height/PANGO_SCALE);
pango_matrix_scale(&m, f_min, f_min);
pango_context_set_matrix(context, &m);
pango_layout_context_changed(layout);
pango_renderer_draw_layout(renderer, layout, 0, 0);
/* clean up renderer */
gdk_pango_renderer_set_drawable(GDK_PANGO_RENDERER(renderer), NULL);
gdk_pango_renderer_set_gc(GDK_PANGO_RENDERER(renderer), NULL);
/* free objects */
g_object_unref(layout);
g_object_unref(context);
}
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;
}
static VALUE
rg_rotate_bang(VALUE self, VALUE degrees)
{
pango_matrix_rotate(_SELF(self), NUM2DBL(degrees));
return self;
}
//-----------------------------------------------------------------------------
void t_display_rysuj_siatke_czas (T_Display *w)
{
int wys ;
char ctmp [20] ;
wys = w->canvas->allocation.height ;
// kolor siatki i opisow
GdkGC *gc = gdk_gc_new (GTK_LAYOUT(w->canvas)->bin_window);
GdkColor color ;
color.red = 0;
color.green = 40000;
color.blue = 0;
gdk_gc_set_rgb_fg_color(gc,&color) ;
time_t hours = w->last_time - w->last_time % w->time_step ;
int dzialka_godz = w->time_step / 3600 ;
//printf ("%d %d %d\n",hours, dzialka_godz, w->last_time % w->time_step) ;
if (w->time_step > 60*60) { // dla dzialki powyzej godziny utrzymac polnoc :)
hours = full_hour(w->last_time) ;
while ( ((get_hour(hours) % dzialka_godz) != 0) &&
(hours > (w->last_time - w->time_range)) )
{
hours -= 3600 ; // czasami nie pokazuje najpozniejszej godziny dla dzialki 3h
// pewnie przez jakies dziwne zjawiska z czasem (lata przestepne ?)
} ;
} ;
//printf ("%d\n",hours) ;
int x_hours ;
PangoLayout *etykieta ;
int et_szer, et_wys ;
int label_x, label_y ;
while (hours > (w->last_time - w->time_range))
{
x_hours = time_to_pixel_x(hours, w) ;
//snprintf (&(ctmp[0]), 20, "%.2d:%.2d", get_hour(hours), get_minute(hours)) ;
gen_time_label_string(&(ctmp[0]), 20, hours, w) ;
etykieta = gtk_widget_create_pango_layout (w->canvas,ctmp);
pango_layout_get_pixel_size (etykieta, &et_szer, &et_wys) ;
label_x = x_hours-et_szer/2 ;
label_y = et_wys+LABEL_MARGIN/2 ;
PangoMatrix matrix = PANGO_MATRIX_INIT;
if (w->x_labels_vert == TRUE)
{
pango_matrix_rotate (&matrix, 90.);
label_x = x_hours - (et_wys)/2 ;
label_y = et_szer + LABEL_MARGIN ;
} ;
pango_context_set_matrix (pango_layout_get_context(etykieta), &matrix);
pango_layout_context_changed(etykieta) ;
// rysowanie dzialek i etykiet
gdk_draw_layout (GTK_LAYOUT(w->canvas)->bin_window,
//w->canvas->style->fg_gc[GTK_WIDGET_STATE (w->canvas)],
gc,
label_x, wys-label_y - w->legend_height, etykieta) ;
gdk_draw_line (GTK_LAYOUT(w->canvas)->bin_window,
//w->canvas->style->fg_gc[GTK_WIDGET_STATE (w->canvas)],
gc,
x_hours,wys-w->y_pixel_offset,x_hours,wys-wys) ;
// pogrubienie wybranych dzialek
if ((get_seconds(hours) == 0) &&
(get_minute(hours) == 0) &&
(get_hour(hours) == 0) )
{
gdk_draw_line (GTK_LAYOUT(w->canvas)->bin_window,
//w->canvas->style->fg_gc[GTK_WIDGET_STATE (w->canvas)],
gc,
x_hours+1,wys-w->y_pixel_offset,x_hours+1,wys-wys) ;
} ;
g_object_unref(etykieta) ;
hours -= w->time_step ;
} ;
g_object_unref(gc) ;
} ;
