ref: 6ea4e1e25cfe2f55e02a371654c1dd7814276398
parent: 3fbef9d2788184c491c120d00e6d5bccecc4310c
author: Simon Howard <fraggle@gmail.com>
date: Tue May 23 18:52:01 EDT 2006
Add input box widget, and include in guitest. Subversion-branch: /trunk/chocolate-doom Subversion-revision: 520
--- a/textscreen/Makefile.am
+++ b/textscreen/Makefile.am
@@ -8,6 +8,7 @@
txt_checkbox.c txt_checkbox.h \
txt_desktop.c txt_desktop.h \
txt_gui.c txt_gui.h \
+ txt_inputbox.c txt_inputbox.h \
txt_io.c txt_io.h \
txt_main.c txt_main.h \
txt_button.c txt_button.h \
--- a/textscreen/guitest.c
+++ b/textscreen/guitest.c
@@ -9,6 +9,7 @@
#include "txt_checkbox.h"
#include "txt_button.h"
#include "txt_desktop.h"
+#include "txt_inputbox.h"
#include "txt_label.h"
#include "txt_radiobutton.h"
#include "txt_separator.h"
@@ -22,6 +23,8 @@
RADIO_VALUE_SNAKE,
};
char *radio_values[] = { "Badger", "Mushroom", "Snake" };+char *textbox_value = NULL;
+int numbox_value = 0;
int radiobutton_value;
txt_label_t *value_label;
txt_window_t *firstwin;
@@ -141,6 +144,7 @@
void Window2(void)
{txt_window_t *window;
+ txt_table_t *table;
int i;
window = TXT_NewWindow("Another test");@@ -153,6 +157,14 @@
{ TXT_AddWidget(window, TXT_NewButton("hello there blah blah blah blah"));}
+
+ TXT_AddWidget(window, TXT_NewSeparator("Input boxes"));+ table = TXT_NewTable(2);
+ TXT_AddWidget(window, table);
+ TXT_AddWidget(table, TXT_NewLabel(" String: "));+ TXT_AddWidget(table, TXT_NewInputBox(&textbox_value, 30));
+ TXT_AddWidget(table, TXT_NewLabel(" Int: "));+ TXT_AddWidget(table, TXT_NewIntInputBox(&numbox_value, 10));
}
void DrawASCIIChart()
--- /dev/null
+++ b/textscreen/txt_inputbox.c
@@ -1,0 +1,254 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "doomkeys.h"
+
+#include "txt_inputbox.h"
+#include "txt_io.h"
+#include "txt_main.h"
+#include "txt_window.h"
+
+static void SetBufferFromValue(txt_inputbox_t *inputbox);
+
+static void TXT_InputBoxSizeCalc(TXT_UNCAST_ARG(inputbox), int *w, int *h)
+{+ TXT_CAST_ARG(txt_inputbox_t, inputbox);
+
+ // Enough space for the box + cursor
+
+ *w = inputbox->size + 1;
+ *h = 1;
+}
+
+static void TXT_InputBoxDrawer(TXT_UNCAST_ARG(inputbox), int w, int selected)
+{+ TXT_CAST_ARG(txt_inputbox_t, inputbox);
+ int i;
+ int chars;
+
+ // Select the background colour based on whether we are currently
+ // editing, and if not, whether the widget is selected.
+
+ if (inputbox->editing && selected)
+ {+ TXT_BGColor(TXT_COLOR_BLACK, 0);
+ }
+ else if (selected)
+ {+ TXT_BGColor(TXT_COLOR_GREY, 0);
+ }
+ else
+ {+ // Not even selected
+
+ TXT_BGColor(TXT_COLOR_BLUE, 0);
+ }
+
+ TXT_FGColor(TXT_COLOR_BRIGHT_WHITE);
+
+ if (!inputbox->editing)
+ {+ // If not editing, use the current value from inputbox->value.
+
+ SetBufferFromValue(inputbox);
+ }
+
+ TXT_DrawString(inputbox->buffer);
+
+ chars = strlen(inputbox->buffer);
+
+ if (chars < w && inputbox->editing && selected)
+ {+ TXT_BGColor(TXT_COLOR_BLACK, 1);
+ TXT_DrawString("_");+ ++chars;
+ }
+
+ for (i=chars; i < w; ++i)
+ {+ TXT_DrawString(" ");+ }
+}
+
+static void TXT_InputBoxDestructor(TXT_UNCAST_ARG(inputbox))
+{+ TXT_CAST_ARG(txt_inputbox_t, inputbox);
+
+ free(inputbox->buffer);
+}
+
+static void Backspace(txt_inputbox_t *inputbox)
+{+ if (strlen(inputbox->buffer) > 0)
+ {+ inputbox->buffer[strlen(inputbox->buffer) - 1] = '\0';
+ }
+}
+
+static void AddCharacter(txt_inputbox_t *inputbox, int key)
+{+ if (strlen(inputbox->buffer) < inputbox->size)
+ {+ // Add character to the buffer
+
+ inputbox->buffer[strlen(inputbox->buffer) + 1] = '\0';
+ inputbox->buffer[strlen(inputbox->buffer)] = key;
+ }
+}
+
+static int TXT_InputBoxKeyPress(TXT_UNCAST_ARG(inputbox), int key)
+{+ TXT_CAST_ARG(txt_inputbox_t, inputbox);
+
+ if (!inputbox->editing)
+ {+ if (key == KEY_ENTER)
+ {+ SetBufferFromValue(inputbox);
+ inputbox->editing = 1;
+ return 1;
+ }
+
+ return 0;
+ }
+
+ if (key == KEY_ENTER)
+ {+ free(*((char **)inputbox->value));
+ *((char **) inputbox->value) = strdup(inputbox->buffer);
+
+ inputbox->editing = 0;
+ }
+
+ if (key == KEY_ESCAPE)
+ {+ inputbox->editing = 0;
+ }
+
+ if (isprint(key))
+ {+ // Add character to the buffer
+
+ AddCharacter(inputbox, key);
+ }
+
+ if (key == KEY_BACKSPACE)
+ {+ Backspace(inputbox);
+ }
+
+ return 1;
+}
+
+static int TXT_IntInputBoxKeyPress(TXT_UNCAST_ARG(inputbox), int key)
+{+ TXT_CAST_ARG(txt_inputbox_t, inputbox);
+
+ if (!inputbox->editing)
+ {+ if (key == KEY_ENTER)
+ {+ SetBufferFromValue(inputbox);
+ inputbox->editing = 1;
+ return 1;
+ }
+
+ return 0;
+ }
+
+ if (key == KEY_ENTER)
+ {+ *((int *) inputbox->value) = atoi(inputbox->buffer);
+
+ inputbox->editing = 0;
+ }
+
+ if (key == KEY_ESCAPE)
+ {+ inputbox->editing = 0;
+ }
+
+ if (isprint(key))
+ {+ // Add character to the buffer
+
+ AddCharacter(inputbox, key);
+ }
+
+ if (key == KEY_BACKSPACE)
+ {+ Backspace(inputbox);
+ }
+
+ return 1;
+}
+
+txt_widget_class_t txt_inputbox_class =
+{+ TXT_InputBoxSizeCalc,
+ TXT_InputBoxDrawer,
+ TXT_InputBoxKeyPress,
+ TXT_InputBoxDestructor,
+};
+
+txt_widget_class_t txt_int_inputbox_class =
+{+ TXT_InputBoxSizeCalc,
+ TXT_InputBoxDrawer,
+ TXT_IntInputBoxKeyPress,
+ TXT_InputBoxDestructor,
+};
+
+static void SetBufferFromValue(txt_inputbox_t *inputbox)
+{+ if (inputbox->widget.widget_class == &txt_inputbox_class)
+ {+ char **value = (char **) inputbox->value;
+
+ if (*value != NULL)
+ {+ strncpy(inputbox->buffer, *value, inputbox->size);
+ inputbox->buffer[inputbox->size] = '\0';
+ }
+ else
+ {+ strcpy(inputbox->buffer, "");
+ }
+ }
+ else if (inputbox->widget.widget_class == &txt_int_inputbox_class)
+ {+ int *value = (int *) inputbox->value;
+ sprintf(inputbox->buffer, "%i", *value);
+ }
+}
+
+txt_inputbox_t *TXT_NewInputBox(char **value, int size)
+{+ txt_inputbox_t *inputbox;
+
+ inputbox = malloc(sizeof(txt_inputbox_t));
+
+ TXT_InitWidget(inputbox, &txt_inputbox_class);
+ inputbox->value = value;
+ inputbox->size = size;
+ inputbox->buffer = malloc(size + 1);
+
+ return inputbox;
+}
+
+txt_inputbox_t *TXT_NewIntInputBox(int *value, int size)
+{+ txt_inputbox_t *inputbox;
+
+ inputbox = malloc(sizeof(txt_inputbox_t));
+
+ TXT_InitWidget(inputbox, &txt_int_inputbox_class);
+ inputbox->value = value;
+ inputbox->size = size;
+ inputbox->buffer = malloc(15);
+ inputbox->editing = 0;
+ return inputbox;
+}
+
--- /dev/null
+++ b/textscreen/txt_inputbox.h
@@ -1,0 +1,46 @@
+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// $Id$
+//
+// Copyright(C) 1993-1996 Id Software, Inc.
+// Copyright(C) 2006 Simon Howard
+//
+// 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.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+// 02111-1307, USA.
+//
+
+#ifndef TXT_INPUTBOX_H
+#define TXT_INPUTBOX_H
+
+typedef struct txt_inputbox_s txt_inputbox_t;
+
+#include "txt_widget.h"
+
+struct txt_inputbox_s
+{+ txt_widget_t widget;
+ char *buffer;
+ int size;
+ int editing;
+ void *value;
+};
+
+txt_inputbox_t *TXT_NewInputBox(char **value, int size);
+txt_inputbox_t *TXT_NewIntInputBox(int *value, int size);
+
+#endif /* #ifndef TXT_INPUTBOX_H */
+
+