1 files changed, 195 insertions, 0 deletions
diff --git a/src/text_window.c b/src/text_window.c
new file mode 100644
index 000000000..6a24fc67d
--- /dev/null
+++ b/src/text_window.c
@@ -0,0 +1,195 @@
+#include "global.h"
+#include "main.h"
+#include "text.h"
+
+u16 sub_8064EF4(u16);
+void sub_8064F08(struct Window *);
+void sub_8064F38(struct Window *, u8);
+void sub_8064F6C(struct Window *, u8);
+void AddTextPrinterParametrized(struct Window *win, u8 left, u8 top, u8 right, u8 bottom);
+const struct FrameGraphics *sub_8064FD4(u8 frameType);
+static void sub_8064FF8(u8, void *);
+static void sub_8065014(u8, u8);
+static void DrawWindowInternal(u16 *dest, u16 baseTileNum, u8 left, u8 top, u8 right, u8 bottom);
+u16 sub_80651C8(u16);
+void unref_sub_80651DC(struct Window *, u8 *);
+void copy_textbox_border_tile_patterns_to_vram(struct Window *);
+static u16 draw_win_3(u16 tilemapEntry, u8 x, u8 y, u8 width, u8 height);
+static void draw_win_2(struct Window *win, u8 left, u8 top, u8 width, u8 height);
+void draw_win(struct Window *win);
+void sub_8065348(struct Window *win);
+void sub_806536C(struct Window *win);
+
+static u16 sTextWindowBaseTileNum;
+static u16 sMessageBoxBaseTileNum;
+
+struct FrameGraphics
+{
+    u8 *tiles;
+    u16 *palette;
+};
+
+extern const struct FrameGraphics gUnknown_083761F0[20];
+
+extern const u16 gMessageBoxTilemap[5][7];
+extern const u8 gMessageBox_Gfx[];
+
+u16 sub_8064EF4(u16 baseTileNum)
+{
+    sTextWindowBaseTileNum = baseTileNum;
+    return baseTileNum + 9;
+}
+
+void sub_8064F08(struct Window *win)
+{
+    u8 *tileData = win->config->tileData + TILE_SIZE_4BPP * sTextWindowBaseTileNum;
+    sub_8064FF8(gSaveBlock2.optionsWindowFrameType, tileData);
+    sub_8065014(gSaveBlock2.optionsWindowFrameType, 0xE);
+}
+
+void sub_8064F38(struct Window *win, u8 a2)
+{
+    u8 *tileData = win->config->tileData + TILE_SIZE_4BPP * sTextWindowBaseTileNum;
+    sub_8064FF8(gSaveBlock2.optionsWindowFrameType, tileData);
+    sub_8065014(gSaveBlock2.optionsWindowFrameType, a2);
+}
+
+void sub_8064F6C(struct Window *win, u8 frameType)
+{
+    u8 *tileData = win->config->tileData + TILE_SIZE_4BPP * sTextWindowBaseTileNum;
+    sub_8064FF8(frameType, tileData);
+    sub_8065014(frameType, 0xE);
+}
+
+void AddTextPrinterParametrized(struct Window *win, u8 left, u8 top, u8 right, u8 bottom)
+{
+    DrawWindowInternal(win->config->tilemap, sTextWindowBaseTileNum, left, top, right, bottom);
+}
+
+const struct FrameGraphics *sub_8064FD4(u8 frameType)
+{
+    if (frameType > 19)
+        return &gUnknown_083761F0[0];
+    else
+        return &gUnknown_083761F0[frameType];
+}
+
+static void sub_8064FF8(u8 frameType, void *dest)
+{
+    const struct FrameGraphics *frameGraphics = sub_8064FD4(frameType);
+    CpuFastCopy(frameGraphics->tiles, dest, 9 * TILE_SIZE_4BPP);
+}
+
+static void sub_8065014(u8 frameType, u8 palSlot)
+{
+    const struct FrameGraphics *frameGraphics = sub_8064FD4(frameType);
+    LoadPalette(frameGraphics->palette, 16 * palSlot, 0x20);
+}
+
+static void DrawWindowInternal(u16 *dest, u16 baseTileNum, u8 left, u8 top, u8 right, u8 bottom)
+{
+    u8 x, y;
+    u8 startX, endX;
+    u8 startY, endY;
+
+    startX = (left < right) ? left : right;
+    endX = (right > left) ? right : left;
+
+    startY = (top < bottom) ? top : bottom;
+    endY = (bottom > top) ? bottom : top;
+
+    dest[32 * startY + startX] = baseTileNum | 0xE000;
+
+    for (x = startX + 1; x < endX; x++)
+        dest[32 * startY + x] = (baseTileNum + 1) | 0xE000;
+
+    dest[32 * startY + endX] = (baseTileNum + 2) | 0xE000;
+
+    for (y = startY + 1; y < endY; y++)
+    {
+        dest[32 * y + startX] = (baseTileNum + 3) | 0xE000;
+
+        for (x = startX + 1; x < endX; x++)
+            dest[32 * y + x] = (baseTileNum + 4) | 0xE000;
+
+        dest[32 * y + endX] = (baseTileNum + 5) | 0xE000;
+    }
+
+    dest[32 * endY + startX] = (baseTileNum + 6) | 0xE000;
+
+    for (x = startX + 1; x < endX; x++)
+        dest[32 * endY + x] = (baseTileNum + 7) | 0xE000;
+
+    dest[32 * endY + endX] = (baseTileNum + 8) | 0xE000;
+}
+
+u16 sub_80651C8(u16 a1)
+{
+    sMessageBoxBaseTileNum = a1;
+    return a1 + 14;
+}
+
+void unref_sub_80651DC(struct Window *win, u8 *text)
+{
+    sub_8002EB0(win, text, sMessageBoxBaseTileNum + 14, 2, 15);
+}
+
+void copy_textbox_border_tile_patterns_to_vram(struct Window *win)
+{
+    sub_8065348(win);
+    draw_win(win);
+}
+
+static u16 draw_win_3(u16 baseTilemapEntry, u8 x, u8 y, u8 width, u8 height)
+{
+    u16 tilemapEntry = 9;
+
+    if (y >= height)
+        y = y - height + 3;
+    else if (y > 1)
+        y = 2;
+
+    if (x >= width + 2)
+        x = x - (width + 2) + 4;
+    else if (x > 2)
+        x = 3;
+
+    if (x <= 6 && y <= 4)
+        tilemapEntry = gMessageBoxTilemap[y][x];
+
+    tilemapEntry += baseTilemapEntry;
+
+    return tilemapEntry;
+}
+
+static void draw_win_2(struct Window *win, u8 left, u8 top, u8 width, u8 height)
+{
+    u8 i, j;
+    u16 tilemapEntry = (win->paletteNum << 12) | sMessageBoxBaseTileNum;
+    u16 *tilemap = win->config->tilemap;
+
+    for (i = 0; i < height + 2; i++)
+        for (j = 0; j < width + 6; j++)
+            tilemap[(left + j) + 32 * (top + i)] = (win->paletteNum << 12) | draw_win_3(tilemapEntry, j, i, width, height);
+}
+
+void draw_win(struct Window *win)
+{
+    draw_win_2(win, 0, 14, 26, 4);
+}
+
+void sub_8065348(struct Window *win)
+{
+    u8 *tileData = win->config->tileData;
+    CpuFastCopy(gMessageBox_Gfx, tileData + 32 * sMessageBoxBaseTileNum, 14 * TILE_SIZE_4BPP);
+}
+
+void sub_806536C(struct Window *win)
+{
+    u8 i;
+    u16 *tilemap = win->config->tilemap + 0x1C0;
+    u16 tilemapEntry = win->paletteNum << 12;
+
+    for (i = 0; i < 0xC0; i++)
+        tilemap[i] = tilemapEntry;
+}