+++ /dev/null
-#include <stdio.h>
-#include <string.h>
-#include "glk.h"
-
-#define SPACE_FACTOR 1.8
-
-void center_text(winid_t win, char *text)
-{
- glui32 width, height;
- glk_window_get_size(win, &width, &height);
-
- glk_set_window(win);
- glk_window_clear(win);
-
- if(glk_window_get_type(win) == wintype_TextGrid) {
- glk_window_move_cursor(win, width / 2 - strlen(text) / 2, height / 2);
- glk_put_string(text);
- } else if(glk_window_get_type(win) == wintype_TextBuffer) {
- int count;
- for(count = 0; count < height / 2; count++)
- glk_put_char('\n');
- for(count = 0;
- count < (int)(SPACE_FACTOR * (width / 2 - strlen(text) / 2));
- count++)
- glk_put_char(' ');
- glk_put_string(text);
- }
-}
-
-void print_two_rows(winid_t win)
-{
- glui32 width, height;
- glk_window_get_size(win, &width, &height);
-
- glk_set_window(win);
- glk_window_clear(win);
-
- glui32 x = width / 2 - 3;
- glui32 y = (height - 1) / 2;
- if(x < 0)
- x = 0;
- if(y < 0)
- y = 0;
-
- glk_window_move_cursor(win, x, y);
- glk_put_string("C: 2");
- glk_window_move_cursor(win, x + 3, y + 1);
- glk_put_string("rows");
-}
-
-void wait_for_key(winid_t win)
-{
- event_t ev;
- glk_request_char_event(win);
- do
- glk_select(&ev);
- while(ev.type != evtype_CharInput);
-}
-
-void glk_main(void)
-{
- winid_t win_a = NULL, win_b = NULL, win_c = NULL, win_d = NULL;
-
- fprintf(stderr, "TEST CASES FROM GLK SPEC\n\n"
- "(Press a key in window A to continue each time)\n\n"
- "Say you do two splits, each a 50-50 percentage split. You start\n"
- "with the original window A, and split that into A and B; then\n"
- "you split B into B and C.\n\n");
-
- win_a = glk_window_open(0, 0, 0, wintype_TextBuffer, 0);
- win_b = glk_window_open(win_a, winmethod_Proportional | winmethod_Below,
- 50, wintype_TextBuffer, 0);
- win_c = glk_window_open(win_b, winmethod_Proportional | winmethod_Below,
- 50, wintype_TextBuffer, 0);
- if(!win_a || !win_b || !win_c)
- return;
- center_text(win_a, "A");
- center_text(win_b, "B");
- center_text(win_c, "C");
-
- wait_for_key(win_a);
- glk_window_close(glk_window_get_root(), NULL);
-
- fprintf(stderr, "Or, you could split A into A and B, and then split A\n"
- "again into A and C.\n\n");
-
- win_a = glk_window_open(0, 0, 0, wintype_TextBuffer, 0);
- win_b = glk_window_open(win_a, winmethod_Proportional | winmethod_Below,
- 50, wintype_TextBuffer, 0);
- win_c = glk_window_open(win_a, winmethod_Proportional | winmethod_Below,
- 50, wintype_TextBuffer, 0);
- if(!win_a || !win_b || !win_c)
- return;
- center_text(win_a, "A");
- center_text(win_b, "B");
- center_text(win_c, "C");
-
- wait_for_key(win_a);
- glk_window_close(glk_window_get_root(), NULL);
-
- fprintf(stderr, "Here are more ways to perform the first example; all of\n"
- "them have the same tree structure, but look different on the\n"
- "screen. Here, we turn the second split (B into B/C) upside down;\n"
- "we put the new window (C) above the old window (B).\n\n");
-
- win_a = glk_window_open(0, 0, 0, wintype_TextBuffer, 0);
- win_b = glk_window_open(win_a, winmethod_Proportional | winmethod_Below,
- 50, wintype_TextBuffer, 0);
- win_c = glk_window_open(win_b, winmethod_Proportional | winmethod_Above,
- 50, wintype_TextBuffer, 0);
- if(!win_a || !win_b || !win_c)
- return;
- center_text(win_a, "A");
- center_text(win_b, "B");
- center_text(win_c, "C");
-
- wait_for_key(win_a);
- glk_window_close(glk_window_get_root(), NULL);
-
- fprintf(stderr, "Here, we mess with the percentages. The first split (A\n"
- "into A/B) is a 25-75 split, which makes B three times the size\n"
- "of A. The second (B into B/C) is a 33-66 split, which makes C\n"
- "twice the size of B. This looks rather like the second example,\n"
- "but has a different internal structure.\n\n");
-
- win_a = glk_window_open(0, 0, 0, wintype_TextBuffer, 0);
- win_b = glk_window_open(win_a, winmethod_Proportional | winmethod_Below,
- 75, wintype_TextBuffer, 0);
- win_c = glk_window_open(win_b, winmethod_Proportional | winmethod_Below,
- 67, wintype_TextBuffer, 0);
- if(!win_a || !win_b || !win_c)
- return;
- center_text(win_a, "A");
- center_text(win_b, "B");
- center_text(win_c, "C");
-
- wait_for_key(win_a);
- glk_window_close(glk_window_get_root(), NULL);
-
- fprintf(stderr, "Here, the second split (B into B/C) is vertical instead\n"
- "of horizontal, with the new window (C) on the left of the old\n"
- "one.\n\n");
-
- win_a = glk_window_open(0, 0, 0, wintype_TextBuffer, 0);
- win_b = glk_window_open(win_a, winmethod_Proportional | winmethod_Below,
- 50, wintype_TextBuffer, 0);
- win_c = glk_window_open(win_b, winmethod_Proportional | winmethod_Left,
- 50, wintype_TextBuffer, 0);
- if(!win_a || !win_b || !win_c)
- return;
- center_text(win_a, "A");
- center_text(win_b, "B");
- center_text(win_c, "C");
-
- wait_for_key(win_a);
- glk_window_close(glk_window_get_root(), NULL);
-
- fprintf(stderr, "In the following two-split process, you can see that\n"
- "when a window is split, it is replaced by a new pair window, and\n"
- "moves down to become one of its two children.\n\n");
-
- if(!(win_a = glk_window_open(0, 0, 0, wintype_TextBuffer, 0)))
- return;
- center_text(win_a, "A");
- wait_for_key(win_a);
-
- if(!(win_b = glk_window_open(win_a,
- winmethod_Proportional | winmethod_Below,
- 50, wintype_TextBuffer, 0)))
- return;
- center_text(win_a, "A");
- center_text(win_b, "B");
- wait_for_key(win_a);
-
- if(!(win_c = glk_window_open(win_b, winmethod_Proportional | winmethod_Left,
- 50, wintype_TextBuffer, 0)))
- return;
- center_text(win_a, "A");
- center_text(win_b, "B");
- center_text(win_c, "C");
- wait_for_key(win_a);
-
- glk_window_close(glk_window_get_root(), NULL);
-
- fprintf(stderr, "What happens when there is a conflict? The rules are\n"
- "simple. Size control always flows down the tree, and the player\n"
- "is at the top. Let's bring out an example: first we split A into\n"
- "A and B, with a 50%% proportional split. Then we split A into A\n"
- "and C, with C above, being a text grid window, and C gets a\n"
- "fixed size of two rows (as measured in its own font size). A\n"
- "gets whatever remains of the 50%% it had before.\n\n");
-
- win_a = glk_window_open(0, 0, 0, wintype_TextBuffer, 0);
- win_b = glk_window_open(win_a, winmethod_Proportional | winmethod_Below,
- 50, wintype_TextBuffer, 0);
- win_c = glk_window_open(win_a, winmethod_Fixed | winmethod_Above,
- 2, wintype_TextGrid, 0);
- if(!win_a || !win_b || !win_c)
- return;
- center_text(win_a, "A");
- center_text(win_b, "B: 50%");
- print_two_rows(win_c);
- wait_for_key(win_a);
-
- fprintf(stderr, "(Stage 1) Now the player stretches the window\n"
- "vertically.\n\n");
-
- wait_for_key(win_a);
-
- fprintf(stderr, "(Stage 2) Then the user maliciously starts squeezing the\n"
- "window down, in stages.\n\n");
-
- center_text(win_a, "A");
- center_text(win_b, "B: 50%");
- print_two_rows(win_c);
- wait_for_key(win_a);
-
- fprintf(stderr, "(Stage 3) The logic remains the same. At stage 3,\n"
- "there's no room left for A, so it winds up with zero height.\n"
- "Nothing displayed in A will be visible.\n\n");
-
- center_text(win_a, "A");
- center_text(win_b, "B");
- center_text(win_c, "C");
- wait_for_key(win_a);
-
- fprintf(stderr, "(Stage 4) At stage 4, there isn't even room in the upper\n"
- "50%% to give C its two rows; so it only gets one.\n\n");
-
- center_text(win_a, "A");
- center_text(win_b, "B");
- center_text(win_c, "C");
- wait_for_key(win_a);
-
- fprintf(stderr, "(Stage 5) Finally, C is squashed out of existence as\n"
- "well.\n\n");
-
- center_text(win_a, "A");
- center_text(win_b, "B");
- wait_for_key(win_a);
-
- glk_window_close(glk_window_get_root(), NULL);
-
- fprintf(stderr, "What happens when you split a fixed-size window? The\n"
- "resulting pair window retains the same size constraint as the\n"
- "original window that was split. The key window for the original\n"
- "split is still the key window for that split, even though it's\n"
- "now a grandchild instead of a child.\n\n");
-
- if(!(win_a = glk_window_open(0, 0, 0, wintype_TextBuffer, 0)))
- return;
- center_text(win_a, "A");
- wait_for_key(win_a);
-
- fprintf(stderr, "After the first split, the new pair window (O1, which\n"
- "covers the whole screen) knows that its first child (A) is above\n"
- "the second, and gets 50%% of its own area. (A is the key window\n"
- "for this split, but a proportional split doesn't care about key\n"
- "windows.)\n\n");
-
- if(!(win_b = glk_window_open(win_a,
- winmethod_Proportional | winmethod_Below,
- 50, wintype_TextBuffer, 0)))
- return;
- center_text(win_a, "A: 50%");
- center_text(win_b, "B");
- wait_for_key(win_a);
-
- fprintf(stderr, "After the second split, all this remains true; O1 knows\n"
- "that its first child gets 50%% of its space, and A is O1's key\n"
- "window. But now O1's first child is O2 instead of A. The newer\n"
- "pair window (O2) knows that its first child (C) is above the\n"
- "second, and gets a fixed size of two rows. (As measured in C's\n"
- "font, because C is O2's key window.)\n\n");
-
- if(!(win_c = glk_window_open(win_a, winmethod_Fixed | winmethod_Above, 2,
- wintype_TextGrid, 0)))
- return;
- center_text(win_a, "A");
- center_text(win_b, "B");
- print_two_rows(win_c);
- wait_for_key(win_a);
-
- fprintf(stderr, "If we split C, now, the resulting pair will still be two\n"
- "C-font rows high -- that is, tall enough for two lines of\n"
- "whatever font C displays. For the sake of example, we'll do this\n"
- "vertically.\n\n");
-
- if(!(win_d = glk_window_open(win_c,
- winmethod_Proportional | winmethod_Right,
- 50, wintype_TextBuffer, 0)))
- return;
- center_text(win_a, "A");
- center_text(win_b, "B");
- center_text(win_c, "C");
- center_text(win_d, "D");
- wait_for_key(win_a);
-
- fprintf(stderr, "When you close a window (and it is not the root window),\n"
- "the other window in its pair takes over all the freed-up area.\n"
- "Let's close D, in the current example:\n\n");
-
- glk_window_close(win_d, NULL);
- center_text(win_a, "A");
- center_text(win_b, "B");
- center_text(win_c, "C");
- wait_for_key(win_a);
-
- fprintf(stderr, "But what if we had closed C instead of D? We would have\n"
- "gotten this:\n\n");
-
- glk_window_close(glk_window_get_root(), NULL);
- win_a = glk_window_open(0, 0, 0, wintype_TextBuffer, 0);
- win_b = glk_window_open(win_a, winmethod_Proportional | winmethod_Below, 50,
- wintype_TextBuffer, 0);
- win_c = glk_window_open(win_a, winmethod_Fixed | winmethod_Above, 2,
- wintype_TextGrid, 0);
- win_d = glk_window_open(win_c, winmethod_Proportional | winmethod_Right, 50,
- wintype_TextBuffer, 0);
- glk_window_close(win_c, NULL);
- center_text(win_a, "A");
- center_text(win_b, "B");
- center_text(win_d, "D");
- wait_for_key(win_a);
-
- glk_window_close(win_d, NULL);
- glk_window_close(win_b, NULL);
- glk_window_clear(win_a);
- glk_set_window(win_a);
- glk_put_string("That's all, folks...");
-}
projects / rodin / chimara.git / blobdiff