kconfig/lxdialog: Add definitions for mininimum (re)size values

Commit c8dc68ad0fbd ("kconfig/lxdialog: support resize") added support
for resizing, but forgot to collect all hardcoded values at one single
place.

Also add a definition for the check for a minimum screen/window size
of 80x19.

[ ChangeLog v3:
  * Rename MENU_{HEIGTH,WIDTH}_MIN -> MENUBOX_{HEIGTH,WIDTH}_MIN
  ChangeLog v2:
  * Rename WIN_{HEIGTH,WIDTH}_MIN -> WINDOW_{HEIGTH,WIDTH}_MIN
  * Mention the check for a minimum screen/window size in the changelog
  * Add a comment above the block of new definitions ]

Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Acked-by: Wang YanQing <udknight@gmail.com>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

7 files changed, 23 insertions, 9 deletions

diff --git a/scripts/kconfig/lxdialog/checklist.c b/scripts/kconfig/lxdialog/checklist.c
index a2eb80fbc896..30340571190e 100644
--- a/scripts/kconfig/lxdialog/checklist.c
+++ b/scripts/kconfig/lxdialog/checklist.c
@@ -132,9 +132,9 @@ int dialog_checklist(const char *title, const char *prompt, int height,
         }
 
 do_resize:
-        if (getmaxy(stdscr) < (height + 6))
+        if (getmaxy(stdscr) < (height + CHECKLIST_HEIGTH_MIN))
                 return -ERRDISPLAYTOOSMALL;
-        if (getmaxx(stdscr) < (width + 6))
+        if (getmaxx(stdscr) < (width + CHECKLIST_WIDTH_MIN))
                 return -ERRDISPLAYTOOSMALL;
 
         max_choice = MIN(list_height, item_count());
diff --git a/scripts/kconfig/lxdialog/dialog.h b/scripts/kconfig/lxdialog/dialog.h
index 1099337079b6..b4343d384926 100644
--- a/scripts/kconfig/lxdialog/dialog.h
+++ b/scripts/kconfig/lxdialog/dialog.h
@@ -200,6 +200,20 @@ int item_is_tag(char tag);
 int on_key_esc(WINDOW *win);
 int on_key_resize(void);
 
+/* minimum (re)size values */
+#define CHECKLIST_HEIGTH_MIN 6  /* For dialog_checklist() */
+#define CHECKLIST_WIDTH_MIN 6
+#define INPUTBOX_HEIGTH_MIN 2   /* For dialog_inputbox() */
+#define INPUTBOX_WIDTH_MIN 2
+#define MENUBOX_HEIGTH_MIN 15   /* For dialog_menu() */
+#define MENUBOX_WIDTH_MIN 65
+#define TEXTBOX_HEIGTH_MIN 8    /* For dialog_textbox() */
+#define TEXTBOX_WIDTH_MIN 8
+#define YESNO_HEIGTH_MIN 4      /* For dialog_yesno() */
+#define YESNO_WIDTH_MIN 4
+#define WINDOW_HEIGTH_MIN 19    /* For init_dialog() */
+#define WINDOW_WIDTH_MIN 80
+
 int init_dialog(const char *backtitle);
 void set_dialog_backtitle(const char *backtitle);
 void set_dialog_subtitles(struct subtitle_list *subtitles);
diff --git a/scripts/kconfig/lxdialog/inputbox.c b/scripts/kconfig/lxdialog/inputbox.c
index 21404a04d7c3..7b01add415a8 100644
--- a/scripts/kconfig/lxdialog/inputbox.c
+++ b/scripts/kconfig/lxdialog/inputbox.c
@@ -56,9 +56,9 @@ int dialog_inputbox(const char *title, const char *prompt, int height, int width
                 strcpy(instr, init);
 
 do_resize:
-        if (getmaxy(stdscr) <= (height - 2))
+        if (getmaxy(stdscr) <= (height - INPUTBOX_HEIGTH_MIN))
                 return -ERRDISPLAYTOOSMALL;
-        if (getmaxx(stdscr) <= (width - 2))
+        if (getmaxx(stdscr) <= (width - INPUTBOX_WIDTH_MIN))
                 return -ERRDISPLAYTOOSMALL;
 
         /* center dialog box on screen */
diff --git a/scripts/kconfig/lxdialog/menubox.c b/scripts/kconfig/lxdialog/menubox.c
index 48d382e7e374..00d28410adc9 100644
--- a/scripts/kconfig/lxdialog/menubox.c
+++ b/scripts/kconfig/lxdialog/menubox.c
@@ -193,7 +193,7 @@ int dialog_menu(const char *title, const char *prompt,
 do_resize:
         height = getmaxy(stdscr);
         width = getmaxx(stdscr);
-        if (height < 15 || width < 65)
+        if (height < MENUBOX_HEIGTH_MIN || width < MENUBOX_WIDTH_MIN)
                 return -ERRDISPLAYTOOSMALL;
 
         height -= 4;
diff --git a/scripts/kconfig/lxdialog/textbox.c b/scripts/kconfig/lxdialog/textbox.c
index a48bb93e0907..907cdcb397c1 100644
--- a/scripts/kconfig/lxdialog/textbox.c
+++ b/scripts/kconfig/lxdialog/textbox.c
@@ -80,7 +80,7 @@ int dialog_textbox(const char *title, char *tbuf, int initial_height,
 
 do_resize:
         getmaxyx(stdscr, height, width);
-        if (height < 8 || width < 8)
+        if (height < TEXTBOX_HEIGTH_MIN || width < TEXTBOX_WIDTH_MIN)
                 return -ERRDISPLAYTOOSMALL;
         if (initial_height != 0)
                 height = initial_height;
diff --git a/scripts/kconfig/lxdialog/util.c b/scripts/kconfig/lxdialog/util.c
index a0e97c299410..78fe4e9d8778 100644
--- a/scripts/kconfig/lxdialog/util.c
+++ b/scripts/kconfig/lxdialog/util.c
@@ -317,7 +317,7 @@ int init_dialog(const char *backtitle)
         getyx(stdscr, saved_y, saved_x);
 
         getmaxyx(stdscr, height, width);
-        if (height < 19 || width < 80) {
+        if (height < WINDOW_HEIGTH_MIN || width < WINDOW_WIDTH_MIN) {
                 endwin();
                 return -ERRDISPLAYTOOSMALL;
         }
diff --git a/scripts/kconfig/lxdialog/yesno.c b/scripts/kconfig/lxdialog/yesno.c
index 4e6e8090c20b..abb0c392e01b 100644
--- a/scripts/kconfig/lxdialog/yesno.c
+++ b/scripts/kconfig/lxdialog/yesno.c
@@ -45,9 +45,9 @@ int dialog_yesno(const char *title, const char *prompt, int height, int width)
         WINDOW *dialog;
 
 do_resize:
-        if (getmaxy(stdscr) < (height + 4))
+        if (getmaxy(stdscr) < (height + YESNO_HEIGTH_MIN))
                 return -ERRDISPLAYTOOSMALL;
-        if (getmaxx(stdscr) < (width + 4))
+        if (getmaxx(stdscr) < (width + YESNO_WIDTH_MIN))
                 return -ERRDISPLAYTOOSMALL;
 
         /* center dialog box on screen */