mirror of
https://git.code.sf.net/p/fldigi/flamp
synced 2026-08-13 17:30:16 -04:00
font browser
* update font browser class to use std::list vice
computed array size to enumerate system fonts
This commit is contained in:
dave-w1hkj
parent
afb90bd6d5
commit
73db3b6b0a
2 changed files with 237 additions and 128 deletions
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@ -27,12 +27,16 @@
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#ifndef FONTBROWSER_H
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#define FONTBROWSER_H
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#include <string>
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#include <list>
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#include <FL/Enumerations.H>
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#include <FL/Fl_Window.H>
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#include <FL/Fl_Widget.H>
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#include <FL/Fl_Browser.H>
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#include <FL/Fl_Button.H>
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#include <FL/Fl_Return_Button.H>
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#include <FL/Fl_Check_Button.H>
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#include "flslider2.h"
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// Preview box for showing font
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@ -50,13 +54,35 @@ public:
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};
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// Font browser widget
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struct font_pair {
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int nbr;
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std::string name;
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font_pair() {
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nbr = 0;
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name.clear();
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}
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~font_pair() {
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}
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};
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class Font_Browser : public Fl_Window
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{
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public:
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friend void *find_fixed_fonts(void *);
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enum filter_t { FIXED_WIDTH, VARIABLE_WIDTH, ALL_TYPES };
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// these are shared by all instances of Font_Browser
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// created for instance 1 and deleted for instance 0
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static int *fixed;
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static std::list<font_pair> font_list;
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font_pair nufont;
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static int instance;
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static int numfonts;
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private:
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int numfonts;
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Fl_Font fontnbr;
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int fontsize;
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Fl_Color fontcolor;
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@ -69,13 +95,15 @@ private:
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Fl_Return_Button *btn_OK;
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Fl_Button *btn_Cancel;
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Fl_Button *btn_Color;
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Fl_Check_Button *btn_fixed;
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Preview_Box *box_Example;
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void FontSort();
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Fl_Callback* callback_;
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public:
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Font_Browser(int x = 100, int y = 100, int w = 430, int h = 225, const char *lbl = "Font Browser");
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~Font_Browser();
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void callback(Fl_Callback* cb, void *d = 0) { callback_ = cb; data_ = d; }
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static void fb_callback(Fl_Widget* w, void* arg);
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void FontNameSelect();
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@ -92,7 +120,8 @@ public:
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const char *fontName() { return lst_Font->text(lst_Font->value()); }
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void fontName(const char* n);
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static bool fixed_width(Fl_Font f);
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static bool fixed_width(Fl_Font f);
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void fontFilter(filter_t filter);
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};
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@ -29,7 +29,13 @@
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#include <cstdlib>
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#include <cstring>
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#include <cstdio>
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#include <cassert>
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#include <iostream>
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#include <list>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <FL/Fl.H>
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#include <FL/Fl_Color_Chooser.H>
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@ -37,12 +43,34 @@
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#include "font_browser.h"
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#include "flslider2.h"
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#include "util.h"
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#include "gettext.h"
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#include "threads.h"
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#include "debug.h"
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void find_fonts();
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Font_Browser* font_browser;
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//======================================================================
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// static members
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int Font_Browser::instance = 0;
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int *Font_Browser::fixed = 0;
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int Font_Browser::numfonts = 100;
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std::list<font_pair> Font_Browser::font_list;
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//======================================================================
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static inline std::string uucase(std::string s) {
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for (size_t n = 0; n < s.length(); n++) s[n] = toupper(s[n]);
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return s;
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}
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static bool font_compare(font_pair &p1, font_pair &p2)
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{
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if (uucase(p1.name) > uucase(p2.name)) return false;
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return true;
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}
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// Font Color selected
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void Font_Browser::ColorSelect()
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@ -53,22 +81,35 @@ void Font_Browser::ColorSelect()
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return;
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fontcolor = fl_rgb_color(r, g, b);
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btn_Color->color(fontcolor);
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btn_Color->labelcolor( fl_contrast(FL_BLACK, fontcolor));
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}
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void Font_Browser::fb_callback(Fl_Widget* w, void* arg)
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{
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Font_Browser* fb = reinterpret_cast<Font_Browser*>(arg);
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if (w == fb->btn_fixed) {
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if (fb->btn_fixed->value())
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fb->fontFilter(FIXED_WIDTH);
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else
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fb->fontFilter(ALL_TYPES);
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return;
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}
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if (w == fb->btn_Cancel)
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fb->hide();
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fb->hide();
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else if (w == fb->btn_OK) {
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if (fb->callback_)
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(*fb->callback_)(fb, fb->data_);
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}
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else if (w == fb->btn_Color)
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fb->ColorSelect();
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fb->ColorSelect();
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else if (w == fb->lst_Font)
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fb->FontNameSelect();
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fb->FontNameSelect();
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else {
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if (w == fb->lst_Size)
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fb->txt_Size->value(strtol(fb->lst_Size->text(fb->lst_Size->value()), NULL, 10));
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@ -77,16 +118,6 @@ void Font_Browser::fb_callback(Fl_Widget* w, void* arg)
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fb->box_Example->SetFont(fb->fontnbr, fb->fontsize, fb->fontcolor);
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}
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// Sort the font list
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void Font_Browser::FontSort()
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{
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int size = lst_Font->size();
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for ( int t = 1; t <= size - 1; t++ )
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for ( int r = t+1; r <= size; r++ )
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if ( strcasecmp(lst_Font->text(t), lst_Font->text(r)) > 0 )
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lst_Font->swap(t,r);
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}
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// Font Name changed callback
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void Font_Browser::FontNameSelect()
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{
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@ -99,29 +130,25 @@ void Font_Browser::FontNameSelect()
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// get sizes and fill browser; skip first element if it is zero
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lst_Size->clear();
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int nsizes, *sizes;
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size_t szt;
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char buf[4];
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nsizes = Fl::get_font_sizes(fontnbr, sizes);
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//
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for (int i = !*sizes; i < nsizes; i++)
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if ((size_t)snprintf(buf, sizeof(buf), "%d", sizes[i]) < sizeof(buf)) {
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szt = sizes[i];
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lst_Size->add(buf, (void*)szt);//sizes[i]);
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}
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if ((size_t)snprintf(buf, sizeof(buf), "%d", sizes[i]) < sizeof(buf))
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lst_Size->add(buf, reinterpret_cast<void*>(sizes[i]));
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// scalable font with no suggested sizes
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if (!lst_Size->size()) {
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for (int i = 1; i <= 48; i++) {
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snprintf(buf, sizeof(buf), "%d", i);
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szt = i;
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lst_Size->add(buf, (void*)szt);
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}
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for (int i = 1; i <= 48; i++) {
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snprintf(buf, sizeof(buf), "%d", i);
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lst_Size->add(buf, reinterpret_cast<void*>(i));
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}
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}
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fontSize(fontsize);
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}
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Font_Browser::Font_Browser(int x, int y, int w, int h, const char *lbl )
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: Fl_Window(x, y, w, h, lbl)
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: Fl_Window(x, y, w, h, lbl)
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{
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lst_Font = new Fl_Browser(5, 15, 280, 125, _("Font:"));
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lst_Font->align(FL_ALIGN_TOP_LEFT);
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@ -138,6 +165,10 @@ Font_Browser::Font_Browser(int x, int y, int w, int h, const char *lbl )
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lst_Size->type(FL_HOLD_BROWSER);
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lst_Size->callback(fb_callback, this);
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btn_fixed = new Fl_Check_Button(345, 15, 18, 18, _("Fixed"));
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btn_fixed->callback(fb_callback, this);
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btn_fixed->value(0);
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btn_OK = new Fl_Return_Button(345, 40, 80, 25, _("&OK"));
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btn_OK->shortcut(0x8006f);
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btn_OK->callback(fb_callback, this);
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@ -149,11 +180,15 @@ Font_Browser::Font_Browser(int x, int y, int w, int h, const char *lbl )
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btn_Color = new Fl_Button(345, 100, 80, 25, _("Color"));
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btn_Color->down_box(FL_BORDER_BOX);
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btn_Color->color(FL_FOREGROUND_COLOR);
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btn_Color->labelcolor( fl_contrast(FL_BLACK, FL_FOREGROUND_COLOR));
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btn_Color->callback(fb_callback, this);
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box_Example = new Preview_Box(5, 145, 420, 75, _("That crazy fox jumped over the dog again!\n"
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789\n"
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"!\"#$%&'()*+,-./:;<=>?@@[\\]^_`{|}~"));
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box_Example = new Preview_Box(5, 145, 420, 75,
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_("\
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abcdefghijklmnopqrstuvwxyz\n\
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ABCDEFGHIJKLMNOPQRSTUVWXYZ\n\
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0123456789"
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) );
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box_Example->box(FL_DOWN_BOX);
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box_Example->align(FL_ALIGN_WRAP|FL_ALIGN_CLIP|FL_ALIGN_CENTER|FL_ALIGN_INSIDE);
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resizable(box_Example);
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@ -161,37 +196,90 @@ Font_Browser::Font_Browser(int x, int y, int w, int h, const char *lbl )
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set_modal();
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end();
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// Initializations
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// Initializations
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this->callback_ = 0; // Initialize Widgets callback
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this->data_ = 0; // And the data
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numfonts = Fl::set_fonts(0); // Nr of fonts available on the server
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std::string fntname;
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bool ok = true;
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const char* name;
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size_t szt;
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for(int i = 0; i < numfonts; i++) {
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name = Fl::get_font_name((Fl_Font)i);
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if (isalpha(*name)) {
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szt = i;
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lst_Font->add(name, (void *)szt);
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if (instance == 0) {
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++instance;
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numfonts = Fl::set_fonts("*"); // Nr of fonts available on the server
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font_list.clear();
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fixed = new int[numfonts];
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int j = 0;
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for (int i = 0; i < numfonts; i++) {
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fntname = Fl::get_font_name((Fl_Font)i);
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ok = true;
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for (size_t k = 0; k < fntname.length(); k++) {
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if (fntname[k] < ' ' || fntname[k] > 'z' ||
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fntname[k] == '\\' || fntname[k] == '@') { // disallowed chars in browser widget
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ok = false;
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break;
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}
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}
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if (fntname.empty()) ok = false;
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if (ok) {
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nufont.name = fntname;
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nufont.nbr = i;
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font_list.push_back(nufont);
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j++;
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}
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}
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numfonts = j;
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font_list.sort(font_compare);
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std::list<font_pair> temp_list = font_list;
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int i = 0;
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while (!temp_list.empty()) {
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nufont = temp_list.front();
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lst_Font->add( nufont.name.c_str(), reinterpret_cast<void *>(nufont.nbr) );
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temp_list.pop_front();
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fixed[i++] = 0;
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}
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find_fonts();
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} else {
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++instance;
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std::list<font_pair> temp_list = font_list;
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while (!temp_list.empty()) {
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nufont = temp_list.front();
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lst_Font->add( nufont.name.c_str(), reinterpret_cast<void *>(nufont.nbr) );
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temp_list.pop_front();
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}
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}
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FontSort();
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fontnbr = FL_HELVETICA;;
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fontsize = FL_NORMAL_SIZE; // Font Size to be used
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fontsize = FL_NORMAL_SIZE;
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fontcolor = FL_FOREGROUND_COLOR;
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filter = ALL_TYPES;
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lst_Font->value(1);
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FontNameSelect();
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//! Fl::focus(lst_Font);
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xclass(PACKAGE_NAME);
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}
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Font_Browser::~Font_Browser()
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{
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--instance;
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if (instance == 0) {
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delete [] fixed;
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fixed = 0;
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font_list.clear();
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}
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}
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void Font_Browser::fontNumber(Fl_Font n)
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{
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fontnbr = n;
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@ -211,10 +299,10 @@ void Font_Browser::fontSize(int s)
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fontsize = s;
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int n = lst_Size->size();
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for (int i = 1; i < n; i++) {
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if ((intptr_t)lst_Size->data(i) == fontsize) {
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lst_Size->value(i);
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break;
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}
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if ((intptr_t)lst_Size->data(i) == fontsize) {
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lst_Size->value(i);
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break;
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}
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}
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txt_Size->value(s);
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}
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@ -237,97 +325,89 @@ void Font_Browser::fontName(const char* n)
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}
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}
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bool Font_Browser::fixed_width(Fl_Font f)
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{
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fl_font(f, FL_NORMAL_SIZE);
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return fl_width('X') == fl_width('i');
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}
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#include <vector>
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#include <FL/Fl_Double_Window.H>
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#include <FL/Fl_Progress.H>
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class Progress_Window : public Fl_Double_Window
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{
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public:
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Progress_Window(float min = 0.0f, float max = 100.0f, const char* l = 0)
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: Fl_Double_Window(200, 34), ps(5, 5, 190, 24, l)
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{
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end();
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range(min, max);
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ps.align(FL_ALIGN_CENTER | FL_ALIGN_INSIDE);
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ps.selection_color(FL_SELECTION_COLOR);
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set_modal();
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callback(nop);
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if (l && *l) {
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fl_font(FL_HELVETICA, FL_NORMAL_SIZE);
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int s = (int)(fl_width(l) + fl_width('W'));
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if (s > ps.w()) {
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ps.size(s, ps.h());
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size(ps.w() + 10, h());
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}
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}
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position(Fl::event_x_root() - w() / 2, Fl::event_y_root() - h());
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xclass(PACKAGE_TARNAME);
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show();
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}
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void range(float min, float max) { ps.minimum(min); ps.maximum(max); }
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void value(float val) { ps.value(val); }
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static void nop(Fl_Widget*, void*) { }
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private:
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Fl_Progress ps;
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};
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void Font_Browser::fontFilter(filter_t filter)
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{
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if (this->filter == filter)
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return;
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int s = lst_Font->size();
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static std::vector<bool> fixed;
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if (fixed.empty()) {
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Progress_Window pw(1, s, _("Reading fonts..."));
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fixed.resize(s);
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for (int i = 1; i < s; i++) {
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fixed[i] = fixed_width((Fl_Font)(intptr_t)(lst_Font->data(i)));
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pw.value(i);
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Fl::check();
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switch (filter) {
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case FIXED_WIDTH:
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for (int i = 0; i < s; i++) {
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if (fixed[i])
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lst_Font->show(i + 1);
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else
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lst_Font->hide(i + 1);
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}
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btn_fixed->value(1);
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break;
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case VARIABLE_WIDTH:
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for (int i = 0; i < s; i++) {
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if (!fixed[i])
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lst_Font->show(i + 1);
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else
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lst_Font->hide(i + 1);
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}
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btn_fixed->value(0);
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break;
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case ALL_TYPES:
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for (int i = 0; i < s; i++)
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lst_Font->show(i + 1);
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btn_fixed->value(0);
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break;
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}
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switch (this->filter = filter) {
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case FIXED_WIDTH:
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for (int i = 1; i < s; i++) {
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if (fixed[i])
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lst_Font->show(i);
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else
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lst_Font->hide(i);
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}
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break;
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case VARIABLE_WIDTH:
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for (int i = 1; i < s; i++) {
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if (!fixed[i])
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lst_Font->show(i);
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else
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lst_Font->hide(i);
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}
|
||||
break;
|
||||
case ALL_TYPES:
|
||||
for (int i = 1; i < s; i++)
|
||||
lst_Font->show(i);
|
||||
break;
|
||||
}
|
||||
lst_Font->redraw();
|
||||
lst_Font->topline(lst_Font->value());
|
||||
}
|
||||
|
||||
//////////////////////////////////////////////////////////////////////
|
||||
// separate thread used to evaluate fixed / proportional fonts
|
||||
// friend of Font_Browser
|
||||
// launched by Font_Browser instance 1
|
||||
|
||||
static pthread_t find_font_thread;
|
||||
|
||||
static int is_fixed;
|
||||
Fl_Font test_font;
|
||||
void font_test(void *)
|
||||
{
|
||||
fl_font(test_font, FL_NORMAL_SIZE);
|
||||
is_fixed = (fl_width(".") == fl_width("W"));
|
||||
}
|
||||
|
||||
void *find_fixed_fonts(void *)
|
||||
{
|
||||
std::list<font_pair> temp_list = Font_Browser::font_list;
|
||||
int i = 0;
|
||||
while (!temp_list.empty()) {
|
||||
test_font = temp_list.front().nbr;
|
||||
is_fixed = -1;
|
||||
Fl::awake(font_test);
|
||||
while (is_fixed == -1) {
|
||||
MilliSleep(1);
|
||||
}
|
||||
Font_Browser::fixed[i] = is_fixed;
|
||||
i++;
|
||||
temp_list.pop_front();
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void find_fonts()
|
||||
{
|
||||
if (pthread_create(&find_font_thread, NULL, find_fixed_fonts, NULL) < 0) {
|
||||
LOG_ERROR("%s", "pthread_create find_fixed_fonts failed");
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
bool Font_Browser::fixed_width(Fl_Font f)
|
||||
{
|
||||
fl_font(f, FL_NORMAL_SIZE);
|
||||
return fl_width(".") == fl_width("W");
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
|
||||
Preview_Box::Preview_Box(int x, int y, int w, int h, const char* l)
|
||||
: Fl_Widget(x, y, w, h, l)
|
||||
: Fl_Widget(x, y, w, h, l)
|
||||
{
|
||||
fontName = 1;
|
||||
fontSize = FL_NORMAL_SIZE;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue