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| author | mbkma <[email protected]> | 2019-04-23 21:07:07 +0200 |
|---|---|---|
| committer | raveit65 <[email protected]> | 2019-05-07 21:13:40 +0200 |
| commit | 3d27093a45116cc0ecbf1b568b9cc5efed98e2a3 (patch) | |
| tree | 0f9be9bc8c240ef8c43976da1e3ded73a74abcb1 /src/math-buttons.c | |
| parent | 47c3325358011aba0e1db6d2ee430237d51d13db (diff) | |
| download | mate-calc-3d27093a45116cc0ecbf1b568b9cc5efed98e2a3.tar.bz2 mate-calc-3d27093a45116cc0ecbf1b568b9cc5efed98e2a3.tar.xz | |
mp-equation: add pre-defined physical constants
This adds some fundamental physical constants:
- Velocity of Light "c₀", 299,792,458 m/s
- Magnetic constant, "μ₀", 1.2566370614×10⁻ N/A²
- Electric constant, "ε₀", 8.85418782×10⁻¹² s⁴A²/m³kg
- Newtonian constant of gravitation, "G", 6.67408×10⁻¹¹ m³/(s²kg)
- Planck constant, "h", 6.62607004×10⁻³⁴ m²kg/s
- Elementary charge, "ｅ", 1.6021766208(98)×10⁻¹⁹ C
- Electron mass, "mₑ", 9.10938356×10⁻³¹ kg
- Proton mass, "mₚ", 1.672621898(21)×10⁻²⁷ kg
- Avogrado constant, "Nₐ", 6.02214086×10²³ mol⁻¹
They are taken from https://en.wikipedia.org/wiki/Physical_constant#Universal_constants
To insert them one would enter the corresponding symbol or use the gui.
They are set to a MPNumber from string.
Diffstat (limited to 'src/math-buttons.c')
| -rw-r--r-- | src/math-buttons.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/math-buttons.c b/src/math-buttons.c index 50b15a7..22d8570 100644 --- a/src/math-buttons.c +++ b/src/math-buttons.c @@ -45,6 +45,7 @@ struct MathButtonsPrivate GtkWidget *shift_left_menu, *shift_right_menu; GtkWidget *function_menu; + GtkWidget *const_menu; GList *superscript_toggles; GList *subscript_toggles; @@ -125,6 +126,9 @@ static ButtonData button_data[] = { {"function", NULL, FUNCTION, /* Tooltip for the additional functions button */ N_("Additional Functions")}, + {"const", NULL, FUNCTION, + /* Tooltip for the additional constant button */ + N_("Additional constants")}, {"x_pow_y", "^", FUNCTION, /* Tooltip for the exponent button */ N_("Exponent [^ or **]")}, @@ -1021,6 +1025,63 @@ function_cb(GtkWidget *widget, MathButtons *buttons) popup_button_menu(widget, GTK_MENU(buttons->priv->function_menu)); } +static void +insert_const_cb(GtkWidget *widget, MathButtons *buttons) +{ + math_equation_insert(buttons->priv->equation, g_object_get_data(G_OBJECT(widget), "const")); +} + + +void const_cb(GtkWidget *widget, MathButtons *buttons); +G_MODULE_EXPORT +void +const_cb(GtkWidget *widget, MathButtons *buttons) +{ + if (!buttons->priv->const_menu) { + gint i; + GtkWidget *menu; + struct + { + gchar *name, *constant; + } constants[] = + { + { /* Tooltip for the c₀ component button */ + N_("Velocity of Light"), "c₀" }, + { /* Tooltip for the μ₀ component button */ + N_("Magnetic constant"), "μ₀" }, + { /* Tooltip for the ε₀ button */ + N_("Electric constant"), "ε₀" }, + { /* Tooltip for the G button */ + N_("Newtonian constant of gravitation"), "G" }, + { /* Tooltip for the h button */ + N_("Planck constant"), "h" }, + { /* Tooltip for the ｅ button */ + N_("Elementary charge"), "ｅ" }, + { /* Tooltip for the mₑ button */ + N_("Electron mass"), "mₑ" }, + { /* Tooltip for the mₚ button */ + N_("Proton mass"), "mₚ" }, + { /* Tooltip for the Nₐ button */ + N_("Avogrado constant"), "Nₐ" }, + { NULL, NULL } + }; + + menu = buttons->priv->const_menu = gtk_menu_new(); + gtk_menu_set_reserve_toggle_size(GTK_MENU(menu), FALSE); + + for (i = 0; constants[i].name != NULL; i++) { + GtkWidget *item; + + item = gtk_menu_item_new_with_label(_(constants[i].name)); + g_object_set_data(G_OBJECT(item), "const", g_strdup(constants[i].constant)); + gtk_menu_shell_append(GTK_MENU_SHELL(menu), item); + g_signal_connect(item, "activate", G_CALLBACK(insert_const_cb), buttons); + gtk_widget_show(item); + } + } + + popup_button_menu(widget, GTK_MENU(buttons->priv->const_menu)); +} void factorize_cb(GtkWidget *widget, MathButtons *buttons); G_MODULE_EXPORT |