#include <assert.h>
#include <stdlib.h>
#include <string.h>
+
#include <gtk/gtk.h>
#if !GTK_CHECK_VERSION(3,0,0)
#include <gdk/gdkkeysyms.h>
#endif
+
+#define MAY_REFER_TO_GTK_IN_HEADERS
+
+#include "putty.h"
+#include "gtkfont.h"
+#include "gtkcompat.h"
+#include "gtkmisc.h"
+#include "tree234.h"
+
#ifndef NOT_X_WINDOWS
#include <gdk/gdkx.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#endif
-#include "putty.h"
-#include "gtkfont.h"
-#include "gtkcompat.h"
-#include "tree234.h"
-
/*
* Future work:
*
void (*draw_text)(unifont_drawctx *ctx, unifont *font,
int x, int y, const wchar_t *string, int len,
int wide, int bold, int cellwidth);
+ void (*draw_combining)(unifont_drawctx *ctx, unifont *font,
+ int x, int y, const wchar_t *string, int len,
+ int wide, int bold, int cellwidth);
void (*enum_fonts)(GtkWidget *widget,
fontsel_add_entry callback, void *callback_ctx);
char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size,
static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
int x, int y, const wchar_t *string, int len,
int wide, int bold, int cellwidth);
+static void x11font_draw_combining(unifont_drawctx *ctx, unifont *font,
+ int x, int y, const wchar_t *string,
+ int len, int wide, int bold, int cellwidth);
static unifont *x11font_create(GtkWidget *widget, const char *name,
int wide, int bold,
int shadowoffset, int shadowalways);
x11font_destroy,
x11font_has_glyph,
x11font_draw_text,
+ x11font_draw_combining,
x11font_enum_fonts,
x11font_canonify_fontname,
x11font_scale_fontname,
}
}
-static int x11_font_has_glyph(XFontStruct *xfs, int byte1, int byte2)
+static const XCharStruct *x11_char_struct(XFontStruct *xfs,
+ int byte1, int byte2)
{
int index;
/*
- * Not to be confused with x11font_has_glyph, which is a method of
- * the x11font 'class' and hence takes a unifont as argument. This
- * is the low-level function which grubs about in an actual
- * XFontStruct to see if a given glyph exists.
- *
- * We must do this ourselves rather than letting Xlib's
- * XTextExtents16 do the job, because XTextExtents will helpfully
- * substitute the font's default_char for any missing glyph and
- * not tell us it did so, which precisely won't help us find out
- * which glyphs _are_ missing.
- *
* The man page for XQueryFont is rather confusing about how the
* per_char array in the XFontStruct is laid out, because it gives
* formulae for determining the two-byte X character code _from_
}
if (!xfs->per_char) /* per_char NULL => everything in range exists */
- return TRUE;
+ return &xfs->max_bounds;
- return (xfs->per_char[index].ascent + xfs->per_char[index].descent > 0 ||
- xfs->per_char[index].width > 0);
+ return &xfs->per_char[index];
+}
+
+static int x11_font_has_glyph(XFontStruct *xfs, int byte1, int byte2)
+{
+ /*
+ * Not to be confused with x11font_has_glyph, which is a method of
+ * the x11font 'class' and hence takes a unifont as argument. This
+ * is the low-level function which grubs about in an actual
+ * XFontStruct to see if a given glyph exists.
+ *
+ * We must do this ourselves rather than letting Xlib's
+ * XTextExtents16 do the job, because XTextExtents will helpfully
+ * substitute the font's default_char for any missing glyph and
+ * not tell us it did so, which precisely won't help us find out
+ * which glyphs _are_ missing.
+ */
+ const XCharStruct *xcs = x11_char_struct(xfs, byte1, byte2);
+ return xcs && (xcs->ascent + xcs->descent > 0 || xcs->width > 0);
}
static unifont *x11font_create(GtkWidget *widget, const char *name,
int x, y;
unsigned char *bitmap;
Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
+ const XCharStruct *xcs = x11_char_struct(xfi->xfs, glyphindex >> 8,
+ glyphindex & 0xFF);
bitmap = snewn(xfi->allsize, unsigned char);
memset(bitmap, 0, xfi->allsize);
image = XGetImage(disp, xfi->pixmap, 0, 0,
xfi->pixwidth, xfi->pixheight, AllPlanes, XYPixmap);
- for (y = 0; y < xfi->pixheight; y++) {
- for (x = 0; x < xfi->pixwidth; x++) {
+ for (y = xfi->pixoriginy - xcs->ascent;
+ y < xfi->pixoriginy + xcs->descent; y++) {
+ for (x = xfi->pixoriginx + xcs->lbearing;
+ x < xfi->pixoriginx + xcs->rbearing; x++) {
unsigned long pixel = XGetPixel(image, x, y);
if (pixel) {
int byteindex = y * xfi->rowsize + x/8;
}
}
+static void x11font_draw_combining(unifont_drawctx *ctx, unifont *font,
+ int x, int y, const wchar_t *string,
+ int len, int wide, int bold, int cellwidth)
+{
+ /*
+ * For server-side fonts, there's no sophisticated system for
+ * combining characters intelligently, so the best we can do is to
+ * overprint them on each other in the obvious way.
+ */
+ int i;
+ for (i = 0; i < len; i++)
+ x11font_draw_text(ctx, font, x, y, string+i, 1, wide, bold, cellwidth);
+}
+
static void x11font_enum_fonts(GtkWidget *widget,
fontsel_add_entry callback, void *callback_ctx)
{
static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
int x, int y, const wchar_t *string, int len,
int wide, int bold, int cellwidth);
+static void pangofont_draw_combining(unifont_drawctx *ctx, unifont *font,
+ int x, int y, const wchar_t *string,
+ int len, int wide, int bold,
+ int cellwidth);
static unifont *pangofont_create(GtkWidget *widget, const char *name,
int wide, int bold,
int shadowoffset, int shadowalways);
pangofont_destroy,
pangofont_has_glyph,
pangofont_draw_text,
+ pangofont_draw_combining,
pangofont_enum_fonts,
pangofont_canonify_fontname,
pangofont_scale_fontname,
/*
* Here we check whether a character has the same width as the
* character cell it'll be drawn in. Because profiling showed that
- * pango_layout_get_pixel_extents() was a huge bottleneck when we
- * were calling it every time we needed to know this, we instead
- * call it only on characters we don't already know about, and
- * cache the results.
+ * asking Pango for text sizes was a huge bottleneck when we were
+ * calling it every time we needed to know this, we instead call
+ * it only on characters we don't already know about, and cache
+ * the results.
*/
if ((unsigned)uchr >= pfont->nwidthcache) {
if (pfont->widthcache[uchr] < 0) {
PangoRectangle rect;
pango_layout_set_text(layout, utfchr, utflen);
- pango_layout_get_pixel_extents(layout, NULL, &rect);
+ pango_layout_get_extents(layout, NULL, &rect);
pfont->widthcache[uchr] = rect.width;
}
}
#endif
-static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
- int x, int y, const wchar_t *string, int len,
- int wide, int bold, int cellwidth)
+static void pangofont_draw_internal(unifont_drawctx *ctx, unifont *font,
+ int x, int y, const wchar_t *string,
+ int len, int wide, int bold, int cellwidth,
+ int combining)
{
struct pangofont *pfont = (struct pangofont *)font;
PangoLayout *layout;
utfptr = utfstring;
while (utflen > 0) {
int clen, n;
+ int desired = cellwidth * PANGO_SCALE;
/*
* We want to display every character from this string in
* them to do that.
*/
- /*
- * Start by extracting a single UTF-8 character from the
- * string.
- */
- clen = 1;
- while (clen < utflen &&
- (unsigned char)utfptr[clen] >= 0x80 &&
- (unsigned char)utfptr[clen] < 0xC0)
- clen++;
- n = 1;
-
- if (is_rtl(string[0]) ||
- pangofont_char_width(layout, pfont, string[n-1],
- utfptr, clen) != cellwidth) {
+ if (combining) {
/*
- * If this character is a right-to-left one, or has an
- * unusual width, then we must display it on its own.
+ * For a character with combining stuff, we just dump the
+ * whole lot in one go, and expect it to take up just one
+ * character cell.
*/
+ clen = utflen;
+ n = 1;
} else {
/*
- * Try to amalgamate a contiguous string of characters
- * with the expected sensible width, for the common case
- * in which we're using a monospaced font and everything
- * works as expected.
+ * Start by extracting a single UTF-8 character from the
+ * string.
*/
- while (clen < utflen) {
- int oldclen = clen;
- clen++; /* skip UTF-8 introducer byte */
- while (clen < utflen &&
- (unsigned char)utfptr[clen] >= 0x80 &&
- (unsigned char)utfptr[clen] < 0xC0)
- clen++;
- n++;
- if (pangofont_char_width(layout, pfont,
- string[n-1], utfptr + oldclen,
- clen - oldclen) != cellwidth) {
- clen = oldclen;
- n--;
- break;
+ clen = 1;
+ while (clen < utflen &&
+ (unsigned char)utfptr[clen] >= 0x80 &&
+ (unsigned char)utfptr[clen] < 0xC0)
+ clen++;
+ n = 1;
+
+ if (is_rtl(string[0]) ||
+ pangofont_char_width(layout, pfont, string[n-1],
+ utfptr, clen) != desired) {
+ /*
+ * If this character is a right-to-left one, or has an
+ * unusual width, then we must display it on its own.
+ */
+ } else {
+ /*
+ * Try to amalgamate a contiguous string of characters
+ * with the expected sensible width, for the common case
+ * in which we're using a monospaced font and everything
+ * works as expected.
+ */
+ while (clen < utflen) {
+ int oldclen = clen;
+ clen++; /* skip UTF-8 introducer byte */
+ while (clen < utflen &&
+ (unsigned char)utfptr[clen] >= 0x80 &&
+ (unsigned char)utfptr[clen] < 0xC0)
+ clen++;
+ n++;
+ if (is_rtl(string[n-1]) ||
+ pangofont_char_width(layout, pfont,
+ string[n-1], utfptr + oldclen,
+ clen - oldclen) != desired) {
+ clen = oldclen;
+ n--;
+ break;
+ }
}
}
}
g_object_unref(layout);
}
+static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
+ int x, int y, const wchar_t *string, int len,
+ int wide, int bold, int cellwidth)
+{
+ pangofont_draw_internal(ctx, font, x, y, string, len, wide, bold,
+ cellwidth, FALSE);
+}
+
+static void pangofont_draw_combining(unifont_drawctx *ctx, unifont *font,
+ int x, int y, const wchar_t *string,
+ int len, int wide, int bold,
+ int cellwidth)
+{
+ wchar_t *tmpstring = NULL;
+ if (mk_wcwidth(string[0]) == 0) {
+ /*
+ * If we've been told to draw a sequence of _only_ combining
+ * characters, prefix a space so that they have something to
+ * combine with.
+ */
+ tmpstring = snewn(len+1, wchar_t);
+ memcpy(tmpstring+1, string, len * sizeof(wchar_t));
+ tmpstring[0] = L' ';
+ string = tmpstring;
+ len++;
+ }
+ pangofont_draw_internal(ctx, font, x, y, string, len, wide, bold,
+ cellwidth, TRUE);
+ sfree(tmpstring);
+}
+
/*
* Dummy size value to be used when converting a
* PangoFontDescription of a scalable font to a string for
font->vt->draw_text(ctx, font, x, y, string, len, wide, bold, cellwidth);
}
+void unifont_draw_combining(unifont_drawctx *ctx, unifont *font,
+ int x, int y, const wchar_t *string, int len,
+ int wide, int bold, int cellwidth)
+{
+ font->vt->draw_combining(ctx, font, x, y, string, len, wide, bold,
+ cellwidth);
+}
+
/* ----------------------------------------------------------------------
* Multiple-font wrapper. This is a type of unifont which encapsulates
* up to two other unifonts, permitting missing glyphs in the main
static void multifont_draw_text(unifont_drawctx *ctx, unifont *font,
int x, int y, const wchar_t *string, int len,
int wide, int bold, int cellwidth);
+static void multifont_draw_combining(unifont_drawctx *ctx, unifont *font,
+ int x, int y, const wchar_t *string,
+ int len, int wide, int bold,
+ int cellwidth);
static void multifont_destroy(unifont *font);
struct multifont {
multifont_destroy,
NULL,
multifont_draw_text,
+ multifont_draw_combining,
NULL,
NULL,
NULL,
sfree(font);
}
-static void multifont_draw_text(unifont_drawctx *ctx, unifont *font, int x,
+typedef void (*unifont_draw_func_t)(unifont_drawctx *ctx, unifont *font,
+ int x, int y, const wchar_t *string,
+ int len, int wide, int bold,
+ int cellwidth);
+
+static void multifont_draw_main(unifont_drawctx *ctx, unifont *font, int x,
int y, const wchar_t *string, int len,
- int wide, int bold, int cellwidth)
+ int wide, int bold, int cellwidth,
+ int cellinc, unifont_draw_func_t draw)
{
struct multifont *mfont = (struct multifont *)font;
unifont *f;
*/
f = ok ? mfont->main : mfont->fallback;
if (f)
- unifont_draw_text(ctx, f, x, y, string, i, wide, bold, cellwidth);
+ draw(ctx, f, x, y, string, i, wide, bold, cellwidth);
string += i;
len -= i;
- x += i * cellwidth;
+ x += i * cellinc;
}
}
+static void multifont_draw_text(unifont_drawctx *ctx, unifont *font, int x,
+ int y, const wchar_t *string, int len,
+ int wide, int bold, int cellwidth)
+{
+ multifont_draw_main(ctx, font, x, y, string, len, wide, bold,
+ cellwidth, cellwidth, unifont_draw_text);
+}
+
+static void multifont_draw_combining(unifont_drawctx *ctx, unifont *font,
+ int x, int y, const wchar_t *string,
+ int len, int wide, int bold,
+ int cellwidth)
+{
+ multifont_draw_main(ctx, font, x, y, string, len, wide, bold,
+ cellwidth, 0, unifont_draw_combining);
+}
+
#if GTK_CHECK_VERSION(2,0,0)
/* ----------------------------------------------------------------------
gtk_list_store_append(fs->style_model, &iter);
gtk_list_store_set(fs->style_model, &iter,
0, currstyle, 1, minpos, 2, maxpos+1,
- 3, TRUE, -1);
+ 3, TRUE, 4, PANGO_WEIGHT_NORMAL, -1);
listindex++;
}
if (info) {
gtk_list_store_append(fs->style_model, &iter);
gtk_list_store_set(fs->style_model, &iter,
0, info->charset, 1, -1, 2, -1,
- 3, FALSE, -1);
+ 3, FALSE, 4, PANGO_WEIGHT_BOLD, -1);
listindex++;
}
currcs = info->charset;
return TRUE;
}
-void get_label_text_dimensions(const char *text, int *width, int *height)
-{
- /*
- * Determine the dimensions of a piece of text in the standard
- * font used in GTK interface elements like labels. We do this by
- * instantiating an actual GtkLabel, and then querying its size.
- *
- * But GTK2 and GTK3 require us to query the size completely
- * differently. I'm sure there ought to be an easier approach than
- * the way I'm doing this in GTK3, too!
- */
- GtkWidget *label = gtk_label_new(text);
-
-#if GTK_CHECK_VERSION(3,0,0)
- PangoLayout *layout = gtk_label_get_layout(GTK_LABEL(label));
- PangoRectangle logrect;
- pango_layout_get_extents(layout, NULL, &logrect);
- if (width)
- *width = logrect.width / PANGO_SCALE;
- if (height)
- *height = logrect.height / PANGO_SCALE;
-#else
- GtkRequisition req;
- gtk_widget_size_request(label, &req);
- if (width)
- *width = req.width;
- if (height)
- *height = req.height;
-#endif
-
- g_object_ref_sink(G_OBJECT(label));
-#if GTK_CHECK_VERSION(2,10,0)
- g_object_unref(label);
-#endif
-}
-
unifontsel *unifontsel_new(const char *wintitle)
{
unifontsel_internal *fs = snew(unifontsel_internal);
gtk_table_set_col_spacings(GTK_TABLE(table), 8);
#endif
gtk_widget_show(table);
-#if GTK_CHECK_VERSION(2,4,0)
+
+#if GTK_CHECK_VERSION(3,0,0)
+ /* GtkAlignment has become deprecated and we use the "margin"
+ * property */
+ w = table;
+ g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
+#elif GTK_CHECK_VERSION(2,4,0)
/* GtkAlignment seems to be the simplest way to put padding round things */
w = gtk_alignment_new(0, 0, 1, 1);
gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
gtk_container_add(GTK_CONTAINER(w), table);
gtk_widget_show(w);
#else
+ /* In GTK < 2.4, even that isn't available */
w = table;
#endif
+
gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area
(GTK_DIALOG(fs->u.window))),
w, TRUE, TRUE, 0);
label = gtk_label_new_with_mnemonic("_Font:");
gtk_widget_show(label);
- gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
+ align_label_left(GTK_LABEL(label));
#if GTK_CHECK_VERSION(3,0,0)
gtk_grid_attach(GTK_GRID(table), label, 0, 0, 1, 1);
g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
label = gtk_label_new_with_mnemonic("_Style:");
gtk_widget_show(label);
- gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
+ align_label_left(GTK_LABEL(label));
#if GTK_CHECK_VERSION(3,0,0)
gtk_grid_attach(GTK_GRID(table), label, 1, 0, 1, 1);
g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
#endif
/*
- * The Style list box can contain insensitive elements
- * (character set headings for server-side fonts), so we add
- * an extra column to the list store to hold that information.
+ * The Style list box can contain insensitive elements (character
+ * set headings for server-side fonts), so we add an extra column
+ * to the list store to hold that information. Also, since GTK3 at
+ * least doesn't seem to display insensitive elements differently
+ * by default, we add a further column to change their style.
*/
- model = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
- G_TYPE_BOOLEAN);
+ model = gtk_list_store_new(5, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
+ G_TYPE_BOOLEAN, G_TYPE_INT);
w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
gtk_widget_show(w);
column = gtk_tree_view_column_new_with_attributes
("Style", gtk_cell_renderer_text_new(),
- "text", 0, "sensitive", 3, (char *)NULL);
+ "text", 0, "sensitive", 3, "weight", 4, (char *)NULL);
gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
label = gtk_label_new_with_mnemonic("Si_ze:");
gtk_widget_show(label);
- gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
+ align_label_left(GTK_LABEL(label));
#if GTK_CHECK_VERSION(3,0,0)
gtk_grid_attach(GTK_GRID(table), label, 2, 0, 1, 1);
g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
w = gtk_frame_new(NULL);
gtk_container_add(GTK_CONTAINER(w), ww);
gtk_widget_show(w);
-#if GTK_CHECK_VERSION(2,4,0)
+
+#if GTK_CHECK_VERSION(3,0,0)
+ /* GtkAlignment has become deprecated and we use the "margin"
+ * property */
+ g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
+#elif GTK_CHECK_VERSION(2,4,0)
ww = w;
/* GtkAlignment seems to be the simplest way to put padding round things */
w = gtk_alignment_new(0, 0, 1, 1);
gtk_container_add(GTK_CONTAINER(w), ww);
gtk_widget_show(w);
#endif
+
ww = w;
w = gtk_frame_new("Preview of font");
gtk_container_add(GTK_CONTAINER(w), ww);
* Provide a default if given an empty or null font name.
*/
if (!fontname || !*fontname)
- fontname = "server:fixed";
+ fontname = DEFAULT_GTK_FONT;
/*
* Call the canonify_fontname function.
projects / PuTTY.git / blobdiff