mirrors
/
netsurf
mirror of https://github.com/netsurf-browser/netsurf
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[project @ 2005-02-27 16:03:02 by bursa] 

Fix the GTK build.

svn path=/import/netsurf/; revision=1527
This commit is contained in:
James Bursa 2005-02-27 16:03:02 +00:00
parent 10b27f45f8
commit 8550695710
4 changed files with 196 additions and 118 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

345
gtk/font_pango.c
View File

@ -2,9 +2,16 @@
* This file is part of NetSurf, http://netsurf.sourceforge.net/ * This file is part of NetSurf, http://netsurf.sourceforge.net/
* Licensed under the GNU General Public License, * Licensed under the GNU General Public License,
* http://www.opensource.org/licenses/gpl-license * http://www.opensource.org/licenses/gpl-license
* Copyright 2004 James Bursa <bursa@users.sourceforge.net> * Copyright 2005 James Bursa <bursa@users.sourceforge.net>
*/ */
/** \file
* Font handling (GTK implementation).
*
* Pango is used handle and render fonts.
*/
#include <assert.h> #include <assert.h>
#include <stdio.h> #include <stdio.h>
#include <gtk/gtk.h> #include <gtk/gtk.h>
@ -14,27 +21,224 @@
#include "netsurf/utils/log.h" #include "netsurf/utils/log.h"
struct font_set { extern GdkDrawable *current_drawable;
int x; extern GdkGC *current_gc;
};
struct font_set *nsfont_new_set() static PangoFontDescription *nsfont_style_to_description(
const struct css_style *style);
/**
* Measure the width of a string.
*
* \param style css_style for this text, with style->font_size.size ==
* CSS_FONT_SIZE_LENGTH
* \param string UTF-8 string to measure
* \param length length of string
* \param width updated to width of string[0..length)
* \return true on success, false on error and error reported
*/
bool nsfont_width(const struct css_style *style,
const char *string, size_t length,
int *width)
{ {
PangoFontDescription *desc;
PangoContext *context;
PangoLayout *layout;
if (length == 0)
return 0; return 0;
desc = nsfont_style_to_description(style);
context = gdk_pango_context_get();
layout = pango_layout_new(context);
pango_layout_set_font_description(layout, desc);
pango_layout_set_text(layout, string, length);
pango_layout_get_pixel_size(layout, width, 0);
g_object_unref(layout);
g_object_unref(context);
pango_font_description_free(desc);
return true;
} }
struct font_data *nsfont_open(struct font_set *set, struct css_style *style) /**
* Find the position in a string where an x coordinate falls.
*
* \param style css_style for this text, with style->font_size.size ==
* CSS_FONT_SIZE_LENGTH
* \param string UTF-8 string to measure
* \param length length of string
* \param x x coordinate to search for
* \param char_offset updated to offset in string of actual_x, [0..length]
* \param actual_x updated to x coordinate of character closest to x
* \return true on success, false on error and error reported
*/
bool nsfont_position_in_string(const struct css_style *style,
const char *string, size_t length,
int x, size_t *char_offset, int *actual_x)
{ {
struct font_data *data; int index;
unsigned int size = PANGO_SCALE * 11; PangoFontDescription *desc;
PangoFontDescription *fontdesc; PangoContext *context;
PangoLayout *layout;
PangoRectangle pos;
desc = nsfont_style_to_description(style);
context = gdk_pango_context_get();
layout = pango_layout_new(context);
pango_layout_set_font_description(layout, desc);
pango_layout_set_text(layout, string, length);
pango_layout_xy_to_index(layout, x * PANGO_SCALE, 0, &index, 0);
pango_layout_index_to_pos(layout, index, &pos);
g_object_unref(layout);
g_object_unref(context);
pango_font_description_free(desc);
*char_offset = index;
*actual_x = PANGO_PIXELS(pos.x);
return true;
}
/**
* Find where to split a string to make it fit a width.
*
* \param style css_style for this text, with style->font_size.size ==
* CSS_FONT_SIZE_LENGTH
* \param string UTF-8 string to measure
* \param length length of string
* \param x width available
* \param char_offset updated to offset in string of actual_x, [0..length]
* \param actual_x updated to x coordinate of character closest to x
* \return true on success, false on error and error reported
*
* On exit, [char_offset == 0 ||
* string[char_offset] == ' ' ||
* char_offset == length]
*/
bool nsfont_split(const struct css_style *style,
const char *string, size_t length,
int x, size_t *char_offset, int *actual_x)
{
int index = length;
int x_pos;
PangoFontDescription *desc;
PangoContext *context;
PangoLayout *layout;
PangoLayoutLine *line;
desc = nsfont_style_to_description(style);
context = gdk_pango_context_get();
layout = pango_layout_new(context);
pango_layout_set_font_description(layout, desc);
pango_layout_set_text(layout, string, length);
pango_layout_set_width(layout, x * PANGO_SCALE);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD);
line = pango_layout_get_line(layout, 1);
if (line)
index = line->start_index - 1;
pango_layout_line_index_to_x(pango_layout_get_line(layout, 0),
index, 0, &x_pos);
g_object_unref(layout);
g_object_unref(context);
pango_font_description_free(desc);
*char_offset = index;
*actual_x = PANGO_PIXELS(x_pos);
return true;
}
/**
* Render a string.
*
* \param style css_style for this text, with style->font_size.size ==
* CSS_FONT_SIZE_LENGTH
* \param string UTF-8 string to measure
* \param length length of string
* \param x x coordinate
* \param y y coordinate
* \param c colour for text
* \return true on success, false on error and error reported
*/
bool nsfont_paint(const struct css_style *style,
const char *string, size_t length,
int x, int y, colour c)
{
PangoFontDescription *desc;
PangoContext *context;
PangoLayout *layout;
PangoLayoutLine *line;
GdkColor colour = { 0,
((c & 0xff) << 8) | (c & 0xff),
(c & 0xff00) | (c & 0xff00 >> 8),
((c & 0xff0000) >> 8) | (c & 0xff0000 >> 16) };
if (length == 0)
return 0;
desc = nsfont_style_to_description(style);
context = gdk_pango_context_get();
layout = pango_layout_new(context);
pango_layout_set_font_description(layout, desc);
pango_layout_set_text(layout, string, length);
line = pango_layout_get_line(layout, 0);
gdk_draw_layout_line_with_colors(current_drawable, current_gc,
x, y, line, &colour, 0);
g_object_unref(layout);
g_object_unref(context);
pango_font_description_free(desc);
return true;
}
/**
* Convert a css_style to a PangoFontDescription.
*
* \param style css_style for this text, with style->font_size.size ==
* CSS_FONT_SIZE_LENGTH
* \return a new Pango font description
*/
PangoFontDescription *nsfont_style_to_description(
const struct css_style *style)
{
unsigned int size;
PangoFontDescription *desc;
PangoWeight weight = PANGO_WEIGHT_NORMAL; PangoWeight weight = PANGO_WEIGHT_NORMAL;
PangoStyle styl = PANGO_STYLE_NORMAL; PangoStyle styl = PANGO_STYLE_NORMAL;
if (style->font_size.size == CSS_FONT_SIZE_LENGTH) assert(style->font_size.size == CSS_FONT_SIZE_LENGTH);
size = style->font_size.value.length.value * PANGO_SCALE; size = css_len2px(&style->font_size.value.length, style) * PANGO_SCALE;
switch (style->font_style) {
case CSS_FONT_STYLE_ITALIC:
styl = PANGO_STYLE_ITALIC;
break;
case CSS_FONT_STYLE_OBLIQUE:
styl = PANGO_STYLE_OBLIQUE;
break;
default:
break;
}
switch (style->font_weight) { switch (style->font_weight) {
case CSS_FONT_WEIGHT_NORMAL: case CSS_FONT_WEIGHT_NORMAL:
@ -53,116 +257,11 @@ struct font_data *nsfont_open(struct font_set *set, struct css_style *style)
default: break; default: break;
} }
switch (style->font_style) { desc = pango_font_description_new();
case CSS_FONT_STYLE_ITALIC: styl = PANGO_STYLE_ITALIC; break; pango_font_description_set_size(desc, size);
case CSS_FONT_STYLE_OBLIQUE: styl = PANGO_STYLE_OBLIQUE; break; pango_font_description_set_family_static(desc, "Sans");
default: break; pango_font_description_set_weight(desc, weight);
} pango_font_description_set_style(desc, styl);
fontdesc = pango_font_description_new(); return desc;
pango_font_description_set_size(fontdesc, size);
pango_font_description_set_family_static(fontdesc, "Sans");
pango_font_description_set_weight(fontdesc, weight);
pango_font_description_set_style(fontdesc, styl);
data = malloc(sizeof *data);
assert(data);
data->id = fontdesc;
data->size = size;
data->space_width = nsfont_width(data, " ", sizeof(" ")-1);
return data;
}
void nsfont_free_set(struct font_set *set)
{
}
unsigned long nsfont_width(struct font_data *font, const char *text,
size_t length)
{
int width;
PangoContext *context;
PangoLayout *layout;
assert(font && text);
if (length == 0)
return 0;
context = gdk_pango_context_get();
layout = pango_layout_new(context);
pango_layout_set_font_description(layout, font->id);
pango_layout_set_text(layout, text, length);
pango_layout_get_pixel_size(layout, &width, 0);
g_object_unref(layout);
g_object_unref(context);
return width;
}
bool nsfont_position_in_string(struct font_data *font, const char *text,
size_t length, unsigned long x, int *char_offset,
int *pixel_offset)
{
int index;
PangoContext *context;
PangoLayout *layout;
PangoRectangle pos;
assert(font && text);
context = gdk_pango_context_get();
layout = pango_layout_new(context);
pango_layout_set_font_description(layout, font->id);
pango_layout_set_text(layout, text, length);
pango_layout_xy_to_index(layout, x * PANGO_SCALE, 0, &index, 0);
pango_layout_index_to_pos(layout, index, &pos);
g_object_unref(layout);
g_object_unref(context);
*char_offset = index;
*pixel_offset = PANGO_PIXELS(pos.x);
return true;
}
char *nsfont_split(struct font_data *font, const char *text,
size_t length, unsigned int width, unsigned int *used_width)
{
int index = length;
int x_pos;
PangoContext *context;
PangoLayout *layout;
PangoLayoutLine *line;
assert(font && text);
context = gdk_pango_context_get();
layout = pango_layout_new(context);
pango_layout_set_font_description(layout, font->id);
pango_layout_set_text(layout, text, length);
pango_layout_set_width(layout, width * PANGO_SCALE);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD);
line = pango_layout_get_line(layout, 1);
if (line)
index = line->start_index - 1;
pango_layout_line_index_to_x(pango_layout_get_line(layout, 0),
index, 0, &x_pos);
g_object_unref(layout);
g_object_unref(context);
*used_width = PANGO_PIXELS(x_pos);
return text + index;
} }

2
gtk/gtk_gui.c
View File

@ -151,3 +151,5 @@ void gui_401login_open(struct browser_window *bw, struct content *c,
void schedule(int t, void (*callback)(void *p), void *p) {} void schedule(int t, void (*callback)(void *p), void *p) {}
void schedule_remove(void (*callback)(void *p), void *p) {} void schedule_remove(void (*callback)(void *p), void *p) {}
void schedule_run(void) {} void schedule_run(void) {}
void global_history_add(struct gui_window *g) {}

27
gtk/gtk_plotters.c
View File

@ -30,7 +30,7 @@ static bool nsgtk_plot_polygon(int *p, unsigned int n, colour fill);
static bool nsgtk_plot_fill(int x0, int y0, int x1, int y1, colour c); static bool nsgtk_plot_fill(int x0, int y0, int x1, int y1, colour c);
static bool nsgtk_plot_clip(int clip_x0, int clip_y0, static bool nsgtk_plot_clip(int clip_x0, int clip_y0,
int clip_x1, int clip_y1); int clip_x1, int clip_y1);
static bool nsgtk_plot_text(int x, int y, struct font_data *font, static bool nsgtk_plot_text(int x, int y, struct css_style *style,
const char *text, size_t length, colour bg, colour c); const char *text, size_t length, colour bg, colour c);
static bool nsgtk_plot_disc(int x, int y, int radius, colour colour); static bool nsgtk_plot_disc(int x, int y, int radius, colour colour);
static bool nsgtk_plot_bitmap(int x, int y, int width, int height, static bool nsgtk_plot_bitmap(int x, int y, int width, int height,
@ -122,31 +122,10 @@ bool nsgtk_plot_clip(int clip_x0, int clip_y0,
} }
bool nsgtk_plot_text(int x, int y, struct font_data *font, bool nsgtk_plot_text(int x, int y, struct css_style *style,
const char *text, size_t length, colour bg, colour c) const char *text, size_t length, colour bg, colour c)
{ {
PangoContext *context; return nsfont_paint(style, text, length, x, y, c);
PangoLayout *layout;
PangoLayoutLine *line;
GdkColor colour = { 0,
((c & 0xff) << 8) | (c & 0xff),
(c & 0xff00) | (c & 0xff00 >> 8),
((c & 0xff0000) >> 8) | (c & 0xff0000 >> 16) };
context = gtk_widget_get_pango_context(current_widget);
layout = pango_layout_new(context);
pango_layout_set_font_description(layout,
(const PangoFontDescription *) font->id);
pango_layout_set_text(layout, text, length);
line = pango_layout_get_line(layout, 0);
gdk_draw_layout_line_with_colors(current_drawable, current_gc,
x, y, line, &colour, 0);
g_object_unref(layout);
return true;
} }

2
gtk/gtk_window.c
View File

@ -50,8 +50,6 @@ static gboolean gui_window_motion_notify_event(GtkWidget *widget,
GdkEventMotion *event, gpointer data); GdkEventMotion *event, gpointer data);
static gboolean gui_window_button_press_event(GtkWidget *widget, static gboolean gui_window_button_press_event(GtkWidget *widget,
GdkEventButton *event, gpointer data); GdkEventButton *event, gpointer data);
static void html_redraw_box(struct content *content, struct box *box,
int x, int y);
struct gui_window *gui_create_browser_window(struct browser_window *bw, struct gui_window *gui_create_browser_window(struct browser_window *bw,