From 28a4cda6fd60f9a821f89ee7d369f49b58fbd95b Mon Sep 17 00:00:00 2001
From: Steve <stephenjsweeney@battleforthesolarsystem.com>
Date: Sun, 6 Dec 2015 15:03:44 +0000
Subject: [PATCH] Set size of message box, based on amount of text.

---
 src/battle/messageBox.c | 20 ++++++++++++++++++--
 src/battle/messageBox.h |  1 +
 src/draw/text.c         | 32 ++++++++++++++++++++++++++++++++
 src/structs.h           |  1 +
 4 files changed, 52 insertions(+), 2 deletions(-)

diff --git a/src/battle/messageBox.c b/src/battle/messageBox.c
index c6f93d5..60de4e7 100644
--- a/src/battle/messageBox.c
+++ b/src/battle/messageBox.c
@@ -20,6 +20,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "messageBox.h"
 
+static void calculateMessageBoxHeight(MessageBox *msg);
+
 static MessageBox head;
 static MessageBox *tail;
 
@@ -79,6 +81,15 @@ void doMessageBox(void)
 	}
 }
 
+static void calculateMessageBoxHeight(MessageBox *msg)
+{
+	limitTextWidth(575);
+	
+	msg->height = getWrappedTextHeight(msg->body, 18);
+	
+	limitTextWidth(0);
+}
+
 int showingMessageBoxes(void)
 {
 	return head.next != NULL;
@@ -91,9 +102,14 @@ void drawMessageBox(void)
 	
 	if (msg && msg->time > 0)
 	{
+		if (!msg->height)
+		{
+			calculateMessageBoxHeight(msg);
+		}
+		
 		r.y = 50;
 		r.w = 650;
-		r.h = 110;
+		r.h = msg->height + 40;
 		r.x = (SCREEN_WIDTH - r.w) / 2;
 		
 		SDL_SetRenderDrawBlendMode(app.renderer, SDL_BLENDMODE_BLEND);
@@ -105,7 +121,7 @@ void drawMessageBox(void)
 		
 		drawText(r.x + 10, r.y + 5, 18, TA_LEFT, colors.cyan, msg->title);
 		
-		limitTextWidth(550);
+		limitTextWidth(575);
 		
 		drawText(r.x + 10, r.y + 30, 18, TA_LEFT, colors.white, msg->body);
 		
diff --git a/src/battle/messageBox.h b/src/battle/messageBox.h
index 08b0e4d..c863522 100644
--- a/src/battle/messageBox.h
+++ b/src/battle/messageBox.h
@@ -21,6 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../common.h"
 
 extern void drawText(int x, int y, int size, int align, SDL_Color c, const char *format, ...);
+extern int getWrappedTextHeight(char *text, int size);
 extern void limitTextWidth(int width);
 extern void playSound(int sound);
 
diff --git a/src/draw/text.c b/src/draw/text.c
index 8fa5bf5..c6ead8f 100644
--- a/src/draw/text.c
+++ b/src/draw/text.c
@@ -142,6 +142,38 @@ static void drawTextSplit(int x, int y, int size, int align, SDL_Color c, char *
 	drawTextNormal(x, y, size, align, c, drawTextBuffer);
 }
 
+int getWrappedTextHeight(char *text, int size)
+{
+	char textBuffer[MAX_DESCRIPTION_LENGTH];
+	char *token;
+	int w, h, currentWidth;
+	int y;
+	
+	STRNCPY(textBuffer, text, MAX_DESCRIPTION_LENGTH);
+	
+	token = strtok(textBuffer, " ");
+	
+	y = 0;
+	currentWidth = 0;
+	
+	while (token)
+	{
+		textSize(token, size, &w, &h);
+		
+		if (currentWidth + w > maxWidth)
+		{
+			currentWidth = 0;
+			y += h;
+		}
+		
+		currentWidth += w;
+		
+		token = strtok(NULL, " ");
+	}
+	
+	return y + h;
+}
+
 static void textSize(char *text, int size, int *w, int *h)
 {
 	if (!font[size])
diff --git a/src/structs.h b/src/structs.h
index ea7cdc6..499ecd9 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -296,6 +296,7 @@ struct MessageBox {
 	char title[MAX_NAME_LENGTH];
 	char body[MAX_DESCRIPTION_LENGTH];
 	int time;
+	int height;
 	MessageBox *next;
 };