X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=src%2Fsplittest.c;h=7448437e15e40a124ca87ecbead7c29c2c412b3d;hb=02174ac95fb840d3155567507c4686af8c4789a8;hp=58ed6f698b346fe70746a9b7520c2fbcd5f1e2da;hpb=5b7840544b25551ffa0da10e5f0abfe9fd4fa6b9;p=projects%2Fchimara%2Fchimara.git

diff --git a/src/splittest.c b/src/splittest.c
index 58ed6f6..7448437 100644
--- a/src/splittest.c
+++ b/src/splittest.c
@@ -1,34 +1,331 @@
-#include "stdio.h"
+#include <stdio.h>
+#include <string.h>
 #include "glk.h"
 
-void glk_main(void)
+#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;
-    winid_t mainwin = glk_window_open(0, 0, 0, wintype_TextBuffer, 0);
-    if(!mainwin)
-        return;
-    
-	winid_t subwin = glk_window_open(mainwin, winmethod_Right | winmethod_Proportional, 50, wintype_TextBuffer, 1);
-	printf("created new window\n");
-    glk_set_window(mainwin);
-    glk_put_string("Philip en Marijn zijn vet goed.\n");
-    glk_set_window(subwin);
-    glk_put_string("A veeeeeeeeeeeeeeeeeeeeeeeeeeeery looooooooooooooooooooooooong striiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiing.\n");
+	glk_request_char_event(win);
+	do
+		glk_select(&ev);
+    while(ev.type != evtype_CharInput);
+}
 
-    
-    guint32 width, height;
-    glk_window_get_size(mainwin, &width, &height);
-	printf("got window size\n");
-    fprintf(stderr, "\nWidth: %d\nHeight: %d\n", width, height);
-    
-    glk_request_char_event(mainwin);
-    //while(1) {
-        glk_select(&ev);
-        if(ev.type == evtype_CharInput) {
-            glk_window_get_size(mainwin, &width, &height);
-            fprintf(stderr, "\nWidth: %d\nHeight: %d\n", width, height);
-        }
-    //}
-	glk_window_close(subwin, NULL);
-	printf("closed window\n");
+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...");
 }