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| author | mbkma <[email protected]> | 2020-02-13 22:24:23 +0100 |
|---|---|---|
| committer | lukefromdc <[email protected]> | 2020-02-27 05:50:08 +0000 |
| commit | 8de77e33ab168df33b2a4bc7a7fe45aed75e9040 (patch) | |
| tree | 379e6ad7924cd65ffad2f7d0a8a2464618772940 /src/math-history-entry.c | |
| parent | 432a684f6139ec0029eff6469e2873c11cb9adc4 (diff) | |
| download | mate-calc-8de77e33ab168df33b2a4bc7a7fe45aed75e9040.tar.bz2 mate-calc-8de77e33ab168df33b2a4bc7a7fe45aed75e9040.tar.xz | |
add history view to show recent calculations.
add option to enable/disable history (disabled by default).
add possibility to resize mate-calc if history is enabled.
Diffstat (limited to 'src/math-history-entry.c')
| -rw-r--r-- | src/math-history-entry.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/math-history-entry.c b/src/math-history-entry.c new file mode 100644 index 0000000..baf3a7c --- /dev/null +++ b/src/math-history-entry.c @@ -0,0 +1,129 @@ +/* + * Copyright (C) 2020 MATE developers + * + * This program is free software: you can redistribute it and/or modify it under + * the terms of the GNU General Public License as published by the Free Software + * Foundation, either version 2 of the License, or (at your option) any later + * version. See http://www.gnu.org/copyleft/gpl.html the full text of the + * license. + * + * + */ + +#include <string.h> +#include <glib/gi18n.h> +#include <gdk/gdkkeysyms.h> + +#include "math-history-entry.h" + +struct MathHistoryEntryPrivate +{ + MathEquation *equation; + + MPNumber *answer; /* Stores answer in MPNumber object */ + char *equation_string; /* Stores equation to be entered in history-entry */ + char *answer_string; /* Stores answer to be entered in history-entry */ + GtkWidget *equation_label; + GtkWidget *answer_label; + GtkWidget *equation_eventbox; + GtkWidget *answer_eventbox; +}; + +G_DEFINE_TYPE_WITH_PRIVATE (MathHistoryEntry, math_history_entry, GTK_TYPE_LIST_BOX_ROW); + +#define UI_HISTORY_ENTRY_RESOURCE_PATH "/org/mate/calculator/ui/history-entry.ui" +#define GET_WIDGET(ui, name) \ + GTK_WIDGET(gtk_builder_get_object(ui, name)) + +MathHistoryEntry * +math_history_entry_new(MathEquation *equation) +{ + MathHistoryEntry *history_entry = g_object_new(math_history_entry_get_type(), NULL); + history_entry->priv->equation = g_object_ref(equation); + return history_entry; +} + +void answer_clicked_cb(GtkWidget *widget, GdkEventButton *eventbutton, gpointer data); +G_MODULE_EXPORT +void +answer_clicked_cb (GtkWidget *widget, GdkEventButton *eventbutton, gpointer data) +{ /* Callback function for button-press-event on answer_eventbox */ + GtkEventBox *event = (GtkEventBox*) widget; + MathHistoryEntry *history_entry = MATH_HISTORY_ENTRY(data); + if (event != NULL) + { + if (GTK_IS_BIN(event)) + { + GtkWidget *answer_label = gtk_bin_get_child(GTK_BIN(event)); + char *answer = gtk_widget_get_tooltip_text(answer_label); + if (answer != NULL) + math_equation_insert(history_entry->priv->equation, answer); + } + } +} +void equation_clicked_cb(GtkWidget *widget, GdkEventButton *eventbutton, gpointer data); +G_MODULE_EXPORT +void +equation_clicked_cb (GtkWidget *widget, GdkEventButton *eventbutton, gpointer data) +{ /* Callback function for button-press-event on equation_eventbox */ + GtkEventBox *event = (GtkEventBox*) widget; + MathHistoryEntry *history_entry = MATH_HISTORY_ENTRY(data); + if (event != NULL) + { + if (GTK_IS_BIN(event)) + { + GtkLabel *equation_label = (GtkLabel*) gtk_bin_get_child(GTK_BIN(event)); + const char *equation = gtk_label_get_text(equation_label); + if (equation != NULL) + math_equation_set(history_entry->priv->equation, equation); + } + } +} + +void +math_history_entry_insert_entry(MathHistoryEntry *history_entry, char *equation, MPNumber *number, int number_base) +{ + GtkBuilder *builder = NULL; + GtkWidget *grid; + GError *error = NULL; + char *final_answer; + MpSerializer *serializer_nine = mp_serializer_new(MP_DISPLAY_FORMAT_AUTOMATIC, number_base, 9); + MpSerializer *serializer_four = mp_serializer_new(MP_DISPLAY_FORMAT_AUTOMATIC, number_base, 4); + + history_entry->priv->answer = number; + history_entry->priv->equation_string = equation; + history_entry->priv->answer_string = mp_serializer_to_string(serializer_nine, history_entry->priv->answer); + final_answer = mp_serializer_to_string(serializer_four, history_entry->priv->answer); + + builder = gtk_builder_new(); + if(gtk_builder_add_from_resource (builder, UI_HISTORY_ENTRY_RESOURCE_PATH, &error) == 0) + { + g_print("gtk_builder_add_from_resource FAILED\n"); + g_print("%s\n",error->message); + return; + } + grid = GET_WIDGET(builder, "grid"); + gtk_container_add(GTK_CONTAINER(history_entry), grid); + history_entry->priv->equation_label = GET_WIDGET(builder, "equation_label"); + history_entry->priv->answer_label = GET_WIDGET(builder, "answer_label"); + history_entry->priv->equation_eventbox = GET_WIDGET(builder, "equation_eventbox"); + history_entry->priv->answer_eventbox = GET_WIDGET(builder, "answer_eventbox"); + gtk_widget_set_tooltip_text(history_entry->priv->equation_label, history_entry->priv->equation_string); + gtk_widget_set_tooltip_text(history_entry->priv->answer_label, history_entry->priv->answer_string); + gtk_label_set_text(GTK_LABEL(history_entry->priv->equation_label), history_entry->priv->equation_string); + gtk_label_set_text(GTK_LABEL(history_entry->priv->answer_label), final_answer); + gtk_builder_connect_signals(builder, history_entry); +} + +static void +math_history_entry_class_init(MathHistoryEntryClass *klass) +{ +} + +static void +math_history_entry_init(MathHistoryEntry *history_entry) +{ + history_entry->priv = math_history_entry_get_instance_private(history_entry); + history_entry->priv->equation_string = ""; + history_entry->priv->answer_string = ""; +} |