ref: 978ddf539803405ab8fed17e21014ee1ae69fac8
parent: ff6493e0efe1c7ea628d8a6b596f915d9c9764e1
author: Simon Howard <fraggle@gmail.com>
date: Thu May 18 14:48:24 EDT 2006
Initial working text-mode GUI framework. Subversion-branch: /trunk/chocolate-doom Subversion-revision: 480
--- a/textscreen/Makefile.am
+++ b/textscreen/Makefile.am
@@ -2,11 +2,18 @@
AM_CFLAGS = @SDL_CFLAGS@
noinst_LIBRARIES=libtextscreen.a
+bin_PROGRAMS=guitest
libtextscreen_a_SOURCES = \
txt_gui.c txt_gui.h \
txt_io.c txt_io.h \
txt_main.c txt_main.h \
+ txt_button.c txt_button.h \
+ txt_separator.c txt_separator.h\
+ txt_widget.c txt_widget.h \
+ txt_window.c txt_window.h \
txt_font.h
+guitest_LDADD = @SDL_LIBS@ libtextscreen.a
+guitest_SOURCES = guitest.c
--- /dev/null
+++ b/textscreen/guitest.c
@@ -1,0 +1,88 @@
+#include <stdlib.h>
+
+
+#include "txt_main.h"
+
+#include "txt_button.h"
+#include "txt_separator.h"
+#include "txt_window.h"
+
+txt_window_t *firstwin;
+
+void SetupWindow(void)
+{+ txt_window_t *window;
+ char buf[100];
+ int i;
+
+ window = TXT_NewWindow("Window test", 40, 12);+
+ strcpy(buf, "This is a button label: ");
+
+ {+ txt_separator_t *sep;
+ sep = TXT_NewSeparator("Main Section");+ TXT_AddWidget(window, &sep->widget);
+ }
+
+ for (i=0; i<8; ++i)
+ {+ txt_button_t *button;
+
+ button = TXT_NewButton(buf);
+ strcat(buf, "a");
+ TXT_AddWidget(window, &button->widget);
+
+ if (i == 4)
+ {+ txt_separator_t *sep;
+
+ sep = TXT_NewSeparator("Section");+ TXT_AddWidget(window, &sep->widget);
+ }
+
+ if (i == 6)
+ {+ txt_separator_t *sep;
+
+ sep = TXT_NewSeparator(NULL);
+ TXT_AddWidget(window, &sep->widget);
+ }
+ }
+
+ firstwin = window;
+}
+
+void Window2(void)
+{+ txt_window_t *window;
+ int i;
+
+ window = TXT_NewWindow("Another test", 30, 7);+
+ for (i=0; i<5; ++i)
+ {+ txt_button_t *button;
+
+ button = TXT_NewButton("hello there blah blah blah blah");+ TXT_AddWidget(window, &button->widget);
+ }
+}
+
+int main()
+{+ TXT_Init();
+
+ Window2();
+ SetupWindow();
+
+ for (;;)
+ {+ firstwin->selected = (firstwin->selected + 1) % firstwin->num_widgets;
+
+ TXT_DrawAllWindows();
+
+ }
+}
+
+
--- /dev/null
+++ b/textscreen/txt_button.c
@@ -1,0 +1,69 @@
+
+#include <string.h>
+
+#include "txt_button.h"
+#include "txt_io.h"
+#include "txt_main.h"
+#include "txt_widget.h"
+#include "txt_window.h"
+
+static int TXT_ButtonSizeCalc(txt_widget_t *widget)
+{+ txt_button_t *button = (txt_button_t *) widget;
+
+ // Minimum width is the string length + two spaces for padding
+
+ return strlen(button->label) + 2;
+}
+
+static void TXT_ButtonDrawer(txt_widget_t *widget, int w, int selected)
+{+ txt_button_t *button = (txt_button_t *) widget;
+ int i;
+
+ TXT_BGColor(TXT_COLOR_BLUE, 0);
+ TXT_FGColor(TXT_COLOR_BRIGHT_WHITE);
+ TXT_PutChar(' ');+
+ if (selected)
+ {+ TXT_BGColor(TXT_COLOR_GREY, 0);
+ }
+
+ for (i=0; i<strlen(button->label); ++i)
+ {+ TXT_PutChar(button->label[i]);
+ }
+
+ for (i=strlen(button->label); i < w-2; ++i)
+ {+ TXT_PutChar(' ');+ }
+}
+
+static void TXT_ButtonDestructor(txt_widget_t *widget)
+{+ txt_button_t *button = (txt_button_t *) widget;
+
+ free(button->label);
+}
+
+txt_widget_class_t txt_button_class =
+{+ TXT_ButtonSizeCalc,
+ TXT_ButtonDrawer,
+ TXT_ButtonDestructor,
+};
+
+txt_button_t *TXT_NewButton(char *label)
+{+ txt_button_t *button;
+
+ button = malloc(sizeof(txt_button_t));
+
+ button->widget.widget_class = &txt_button_class;
+ button->label = strdup(label);
+
+ return button;
+}
+
--- /dev/null
+++ b/textscreen/txt_button.h
@@ -1,0 +1,42 @@
+// 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_BUTTON_H
+#define TXT_BUTTON_H
+
+typedef struct txt_button_s txt_button_t;
+
+#include "txt_widget.h"
+
+struct txt_button_s
+{+ txt_widget_t widget;
+ char *label;
+};
+
+txt_button_t *TXT_NewButton(char *label);
+
+#endif /* #ifndef TXT_BUTTON_H */
+
+
--- a/textscreen/txt_io.c
+++ b/textscreen/txt_io.c
@@ -1,7 +1,7 @@
// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
-// $Id: txt_io.c 292 2006-01-14 00:10:54Z fraggle $
+// $Id: txt_io.c 480 2006-05-18 18:48:24Z fraggle $
//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 2005 Simon Howard
@@ -230,6 +230,12 @@
{cur_x = x;
cur_y = y;
+}
+
+void TXT_GetXY(int *x, int *y)
+{+ *x = cur_x;
+ *y = cur_y;
}
void TXT_FGColor(txt_color_t color)
--- a/textscreen/txt_io.h
+++ b/textscreen/txt_io.h
@@ -1,7 +1,7 @@
// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
-// $Id: txt_io.h 291 2006-01-13 23:56:00Z fraggle $
+// $Id: txt_io.h 480 2006-05-18 18:48:24Z fraggle $
//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 2005 Simon Howard
@@ -47,6 +47,7 @@
void TXT_PutChar(int c);
void TXT_Puts(char *s);
void TXT_GotoXY(int x, int y);
+void TXT_GetXY(int *x, int *y);
void TXT_FGColor(txt_color_t color);
void TXT_BGColor(int color, int blinking);
void TXT_ClearScreen(void);
--- /dev/null
+++ b/textscreen/txt_separator.c
@@ -1,0 +1,89 @@
+
+#include <string.h>
+
+#include "txt_separator.h"
+#include "txt_io.h"
+#include "txt_main.h"
+#include "txt_widget.h"
+#include "txt_window.h"
+
+static int TXT_SeparatorSizeCalc(txt_widget_t *widget)
+{+ txt_separator_t *separator = (txt_separator_t *) widget;
+
+ if (separator->label != NULL)
+ {+ // Minimum width is the string length + two spaces for padding
+
+ return strlen(separator->label) + 2;
+ }
+ else
+ {+ return 0;
+ }
+}
+
+static void TXT_SeparatorDrawer(txt_widget_t *widget, int w, int selected)
+{+ txt_separator_t *separator = (txt_separator_t *) widget;
+ int i;
+ int x, y;
+
+ TXT_GetXY(&x, &y);
+
+ // Draw separator. Go back one character and draw two extra
+ // to overlap the window borders.
+
+ TXT_DrawSeparator(x-1, y, w + 2);
+
+ if (separator->label != NULL)
+ {+ TXT_GotoXY(x, y);
+
+ TXT_BGColor(TXT_COLOR_BLUE, 0);
+ TXT_FGColor(TXT_COLOR_BRIGHT_GREEN);
+ TXT_PutChar(' ');+
+ for (i=0; i<strlen(separator->label); ++i)
+ {+ TXT_PutChar(separator->label[i]);
+ }
+
+ TXT_PutChar(' ');+ }
+}
+
+static void TXT_SeparatorDestructor(txt_widget_t *widget)
+{+ txt_separator_t *separator = (txt_separator_t *) widget;
+
+ free(separator->label);
+}
+
+txt_widget_class_t txt_separator_class =
+{+ TXT_SeparatorSizeCalc,
+ TXT_SeparatorDrawer,
+ TXT_SeparatorDestructor,
+};
+
+txt_separator_t *TXT_NewSeparator(char *label)
+{+ txt_separator_t *separator;
+
+ separator = malloc(sizeof(txt_separator_t));
+
+ separator->widget.widget_class = &txt_separator_class;
+
+ if (label != NULL)
+ {+ separator->label = strdup(label);
+ }
+ else
+ {+ separator->label = NULL;
+ }
+
+ return separator;
+}
+
--- /dev/null
+++ b/textscreen/txt_separator.h
@@ -1,0 +1,44 @@
+// 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_SEPARATOR_H
+#define TXT_SEPARATOR_H
+
+typedef struct txt_separator_s txt_separator_t;
+
+#include "txt_widget.h"
+
+struct txt_separator_s
+{+ txt_widget_t widget;
+ char *label;
+};
+
+extern txt_widget_class_t txt_separator_class;
+
+txt_separator_t *TXT_NewSeparator(char *label);
+
+#endif /* #ifndef TXT_SEPARATOR_H */
+
+
--- /dev/null
+++ b/textscreen/txt_widget.c
@@ -1,0 +1,19 @@
+
+#include "txt_widget.h"
+
+int TXT_WidgetWidth(txt_widget_t *widget)
+{+ return widget->widget_class->size_calc(widget);
+}
+
+void TXT_DrawWidget(txt_widget_t *widget, int w, int selected)
+{+ widget->widget_class->drawer(widget, w, selected);
+}
+
+void TXT_DestroyWidget(txt_widget_t *widget)
+{+ widget->widget_class->destructor(widget);
+}
+
+
--- /dev/null
+++ b/textscreen/txt_widget.h
@@ -1,0 +1,55 @@
+// 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.
+//
+
+// Base GUI "widget" class that all widgets inherit from.
+
+#ifndef TXT_WIDGET_H
+#define TXT_WIDGET_H
+
+typedef struct txt_widget_class_s txt_widget_class_t;
+typedef struct txt_widget_s txt_widget_t;
+
+typedef int (*TxtWidgetSizeCalc)(txt_widget_t *widget);
+typedef void (*TxtWidgetDrawer)(txt_widget_t *widget, int w, int selected);
+typedef void (*TxtWidgetDestroy)(txt_widget_t *widget);
+
+struct txt_widget_class_s
+{+ TxtWidgetSizeCalc size_calc;
+ TxtWidgetDrawer drawer;
+ TxtWidgetDestroy destructor;
+};
+
+struct txt_widget_s
+{+ txt_widget_class_t *widget_class;
+};
+
+int TXT_WidgetWidth(txt_widget_t *widget);
+void TXT_DrawWidget(txt_widget_t *widget, int w, int selected);
+void TXT_DestroyWidget(txt_widget_t *widget);
+
+#endif /* #ifndef TXT_WIDGET_H */
+
+
--- /dev/null
+++ b/textscreen/txt_window.c
@@ -1,0 +1,195 @@
+// 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.
+//
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "txt_gui.h"
+#include "txt_separator.h"
+#include "txt_window.h"
+
+#define MAXWINDOWS 128
+
+static txt_window_t *all_windows[MAXWINDOWS];
+static int num_windows = 0;
+
+static void AddWindow(txt_window_t *win)
+{+ all_windows[num_windows] = win;
+ ++num_windows;
+}
+
+static void RemoveWindow(txt_window_t *win)
+{+ int from, to;
+
+ for (from=0, to=0; from<num_windows; ++from)
+ {+ if (all_windows[from] != win)
+ {+ all_windows[to] = all_windows[from];
+ ++to;
+ }
+ }
+
+ num_windows = to;
+}
+
+txt_window_t *TXT_NewWindow(char *title, int x, int y)
+{+ txt_window_t *win;
+
+ win = malloc(sizeof(txt_window_t));
+
+ win->title = strdup(title);
+ win->x = x;
+ win->y = y;
+ win->widgets = NULL;
+ win->num_widgets = 0;
+ win->selected = 0;
+
+ AddWindow(win);
+
+ return win;
+}
+
+void TXT_CloseWindow(txt_window_t *window)
+{+ int i;
+
+ // Free all widgets
+
+ for (i=0; i<window->num_widgets; ++i)
+ {+ TXT_DestroyWidget(window->widgets[i]);
+ }
+
+ // Free window resources
+
+ free(window->widgets);
+ free(window->title);
+ free(window);
+
+ RemoveWindow(window);
+}
+
+static void TXT_WindowSize(txt_window_t *window, int *w, int *h)
+{+ int max_width;
+ int i;
+ int ww;
+
+ max_width = 10;
+
+ for (i=0; i<window->num_widgets; ++i)
+ {+ ww = TXT_WidgetWidth(window->widgets[i]);
+
+ if (ww > max_width)
+ max_width = ww;
+ }
+
+ *w = max_width;
+ *h = window->num_widgets;
+}
+
+static void DrawWindow(txt_window_t *window)
+{+ int widgets_w, widgets_h;
+ int window_w, window_h;
+ int x, y;
+ int window_x, window_y;
+ int i;
+
+ TXT_WindowSize(window, &widgets_w, &widgets_h);
+
+ // Actual window size after padding
+
+ window_w = widgets_w + 2;
+ window_h = widgets_h + 5;
+
+ // Use the x,y position as the centerpoint and find the location to
+ // draw the window.
+
+ window_x = window->x - (window_w / 2);
+ window_y = window->y - (window_h / 2);
+
+ // Draw the window
+
+ TXT_DrawWindow(window->title, window_x, window_y, window_w, window_h);
+
+ // Draw all widgets
+
+ for (i=0; i<window->num_widgets; ++i)
+ {+ TXT_GotoXY(window_x + 1, window_y + 2 + i);
+ TXT_DrawWidget(window->widgets[i], widgets_w, i == window->selected);
+ }
+
+ // Separator for action area
+
+ TXT_DrawSeparator(window_x, window_y + 2 + window->num_widgets, window_w);
+}
+
+void TXT_DrawAllWindows(void)
+{+ int i;
+
+ TXT_DrawDesktop("Not Chocolate Doom setup");+
+ for (i=0; i<num_windows; ++i)
+ {+ DrawWindow(all_windows[i]);
+ }
+
+ TXT_UpdateScreen();
+}
+
+void TXT_AddWidget(txt_window_t *window, txt_widget_t *widget)
+{+ if (window->num_widgets == 0)
+ {+ // This is the first widget added.
+ //
+ // The first widget in a window should always be a separator.
+ // If we are not adding a separator now, add one in first.
+
+ if (widget->widget_class != &txt_separator_class)
+ {+ txt_separator_t *separator;
+
+ separator = TXT_NewSeparator(NULL);
+
+ window->widgets = malloc(sizeof(txt_widget_t *));
+ window->widgets[0] = &separator->widget;
+ window->num_widgets = 1;
+ }
+ }
+
+ window->widgets = realloc(window->widgets,
+ sizeof(txt_widget_t *) * (window->num_widgets + 1));
+ window->widgets[window->num_widgets] = widget;
+ ++window->num_widgets;
+}
+
--- /dev/null
+++ b/textscreen/txt_window.h
@@ -1,0 +1,60 @@
+// 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_WINDOW_H
+#define TXT_WINDOW_H
+
+typedef struct txt_window_s txt_window_t;
+
+#include "txt_widget.h"
+
+struct txt_window_s
+{+ // Window title
+
+ char *title;
+
+ // Screen coordinates of the centerpoint of the window
+
+ int x, y;
+
+ // Widgets in this window
+
+ txt_widget_t **widgets;
+ int num_widgets;
+
+ // Index of the current selected widget.
+
+ int selected;
+};
+
+txt_window_t *TXT_NewWindow(char *title, int x, int y);
+void TXT_CloseWindow(txt_window_t *window);
+void TXT_AddWidget(txt_window_t *window, txt_widget_t *widget);
+
+void TXT_DrawAllWindows(void);
+
+#endif /* #ifndef TXT_WINDOW_T */
+
+