ref: 7768cfde84316dc1181a30eabce731d6089e3cfd
parent: 16c643057cef3a49a6713090ffa6e5f8aba2ad0a
author: Simon Howard <[email protected]>
date: Wed Sep 20 14:05:10 EDT 2006
Add spin control widget. Subversion-branch: /trunk/chocolate-doom Subversion-revision: 635
--- a/textscreen/Makefile.am
+++ b/textscreen/Makefile.am
@@ -20,6 +20,7 @@
txt_label.c txt_label.h \
txt_radiobutton.c txt_radiobutton.h \
txt_separator.c txt_separator.h \
+ txt_spinctrl.c txt_spinctrl.h \
txt_strut.c txt_strut.h \
txt_table.c txt_table.h \
txt_widget.c txt_widget.h \
--- a/textscreen/examples/guitest.c
+++ b/textscreen/examples/guitest.c
@@ -157,6 +157,8 @@
TXT_AddWidget(table, TXT_NewInputBox(&textbox_value, 30));
TXT_AddWidget(table, TXT_NewLabel("Int: "));TXT_AddWidget(table, TXT_NewIntInputBox(&numbox_value, 10));
+ TXT_AddWidget(table, TXT_NewLabel("Spin control:"));+ TXT_AddWidget(table, TXT_NewSpinControl(&numbox_value, 0, 15));
}
int main(int argc, char *argv[])
--- a/textscreen/textscreen.h
+++ b/textscreen/textscreen.h
@@ -33,6 +33,7 @@
#include "txt_label.h"
#include "txt_radiobutton.h"
#include "txt_separator.h"
+#include "txt_spinctrl.h"
#include "txt_strut.h"
#include "txt_table.h"
#include "txt_widget.h"
--- /dev/null
+++ b/textscreen/txt_spinctrl.c
@@ -1,0 +1,183 @@
+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// 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.
+//
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "doomkeys.h"
+
+#include "txt_spinctrl.h"
+#include "txt_gui.h"
+#include "txt_io.h"
+#include "txt_main.h"
+#include "txt_window.h"
+
+// Number of characters needed to represent a character
+
+static int IntWidth(int val)
+{+ if (val < 0)
+ {+ return ((int) log(-val)) + 2;
+ }
+ else
+ {+ return ((int) log(val)) + 1;
+ }
+}
+
+static void TXT_SpinControlSizeCalc(TXT_UNCAST_ARG(spincontrol))
+{+ TXT_CAST_ARG(txt_spincontrol_t, spincontrol);
+ int minw, maxw;
+ int w;
+
+ minw = IntWidth(spincontrol->min);
+ maxw = IntWidth(spincontrol->max);
+
+ if (minw > maxw)
+ {+ w = minw;
+ }
+ else
+ {+ w = maxw;
+ }
+
+ spincontrol->widget.w = w + 4;
+ spincontrol->widget.h = 1;
+}
+
+static void TXT_SpinControlDrawer(TXT_UNCAST_ARG(spincontrol), int selected)
+{+ TXT_CAST_ARG(txt_spincontrol_t, spincontrol);
+ char buf[20];
+ int i;
+
+ TXT_FGColor(TXT_COLOR_BRIGHT_WHITE);
+ TXT_BGColor(TXT_COLOR_BLUE, 0);
+
+ TXT_DrawString("< ");+
+ // Choose background color
+
+ if (selected)
+ {+ TXT_BGColor(TXT_COLOR_GREY, 0);
+ }
+ else
+ {+ TXT_BGColor(TXT_COLOR_BLUE, 0);
+ }
+
+ sprintf(buf, "%i", *spincontrol->value);
+
+ for (i=strlen(buf); i<spincontrol->widget.w - 4; ++i)
+ {+ TXT_DrawString(" ");+ }
+
+ TXT_DrawString(buf);
+
+ TXT_BGColor(TXT_COLOR_BLUE, 0);
+ TXT_DrawString(" >");+}
+
+static void TXT_SpinControlDestructor(TXT_UNCAST_ARG(spincontrol))
+{+}
+
+static int TXT_SpinControlKeyPress(TXT_UNCAST_ARG(spincontrol), int key)
+{+ TXT_CAST_ARG(txt_spincontrol_t, spincontrol);
+
+ if (key == KEY_LEFTARROW)
+ {+ --*spincontrol->value;
+
+ if (*spincontrol->value < spincontrol->min)
+ {+ *spincontrol->value = spincontrol->min;
+ }
+
+ return 1;
+ }
+
+ if (key == KEY_RIGHTARROW)
+ {+ ++*spincontrol->value;
+
+ if (*spincontrol->value > spincontrol->max)
+ {+ *spincontrol->value = spincontrol->max;
+ }
+
+ return 1;
+ }
+
+ return 0;
+}
+
+static void TXT_SpinControlMousePress(TXT_UNCAST_ARG(spincontrol),
+ int x, int y, int b)
+{+ TXT_CAST_ARG(txt_spincontrol_t, spincontrol);
+ int rel_x;
+
+ rel_x = x - spincontrol->widget.x;
+
+ if (rel_x < 2)
+ {+ TXT_SpinControlKeyPress(spincontrol, KEY_LEFTARROW);
+ }
+ else if (rel_x >= spincontrol->widget.w - 2)
+ {+ TXT_SpinControlKeyPress(spincontrol, KEY_RIGHTARROW);
+ }
+}
+
+txt_widget_class_t txt_spincontrol_class =
+{+ TXT_SpinControlSizeCalc,
+ TXT_SpinControlDrawer,
+ TXT_SpinControlKeyPress,
+ TXT_SpinControlDestructor,
+ TXT_SpinControlMousePress,
+};
+
+txt_spincontrol_t *TXT_NewSpinControl(int *value, int min, int max)
+{+ txt_spincontrol_t *spincontrol;
+
+ spincontrol = malloc(sizeof(txt_spincontrol_t));
+
+ TXT_InitWidget(spincontrol, &txt_spincontrol_class);
+ spincontrol->value = value;
+ spincontrol->min = min;
+ spincontrol->max = max;
+
+ return spincontrol;
+}
+
+
--- /dev/null
+++ b/textscreen/txt_spinctrl.h
@@ -1,0 +1,40 @@
+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// 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_SPINCONTROL_H
+#define TXT_SPINCONTROL_H
+
+typedef struct txt_spincontrol_s txt_spincontrol_t;
+
+#include "txt_widget.h"
+
+struct txt_spincontrol_s
+{+ txt_widget_t widget;
+ int min, max;
+ int *value;
+};
+
+txt_spincontrol_t *TXT_NewSpinControl(int *value, int min, int max);
+
+#endif /* #ifndef TXT_SPINCONTROL_H */
+
+