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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "ags/shared/ac/keycode.h"
#include "ags/shared/font/fonts.h"
#include "ags/shared/gui/gui_main.h"
#include "ags/shared/gui/gui_textbox.h"
#include "ags/shared/util/stream.h"
#include "ags/shared/util/string_utils.h"
namespace AGS3 {
#define GUITEXTBOX_LEGACY_TEXTLEN 200
namespace AGS {
namespace Shared {
GUITextBox::GUITextBox() {
Font = 0;
TextColor = 0;
TextBoxFlags = kTextBox_DefFlags;
_scEventCount = 1;
_scEventNames[0] = "Activate";
_scEventArgs[0] = "GUIControl *control";
}
bool GUITextBox::HasAlphaChannel() const {
return is_font_antialiased(Font);
}
bool GUITextBox::IsBorderShown() const {
return (TextBoxFlags & kTextBox_ShowBorder) != 0;
}
Rect GUITextBox::CalcGraphicRect(bool clipped) {
if (clipped)
return RectWH(0, 0, _width, _height);
// TODO: need to find a way to cache text position, or there'll be some repetition
Rect rc = RectWH(0, 0, _width, _height);
Point text_at(1 + get_fixed_pixel_size(1), 1 + get_fixed_pixel_size(1));
Rect text_rc = GUI::CalcTextGraphicalRect(Text.GetCStr(), Font, text_at);
if (IsGUIEnabled(this)) {
// add a cursor
Rect cur_rc = RectWH(
text_rc.Right + 3,
1 + get_font_height(Font),
get_fixed_pixel_size(5),
get_fixed_pixel_size(1) - 1);
text_rc = SumRects(text_rc, cur_rc);
}
return SumRects(rc, text_rc);
}
void GUITextBox::Draw(Bitmap *ds, int x, int y) {
color_t text_color = ds->GetCompatibleColor(TextColor);
color_t draw_color = ds->GetCompatibleColor(TextColor);
if (IsBorderShown()) {
ds->DrawRect(RectWH(x, y, _width, _height), draw_color);
if (get_fixed_pixel_size(1) > 1) {
ds->DrawRect(Rect(x + 1, y + 1, x + _width - get_fixed_pixel_size(1), y + _height - get_fixed_pixel_size(1)), draw_color);
}
}
DrawTextBoxContents(ds, x, y, text_color);
}
// TODO: a shared utility function
static void Backspace(String &text) {
if (get_uformat() == U_UTF8) {// Find where the last utf8 char begins
const char *ptr_end = text.GetCStr() + text.GetLength();
const char *ptr = ptr_end - 1;
for (; ptr > text.GetCStr() && ((*ptr & 0xC0) == 0x80); --ptr);
text.ClipRight(ptr_end - ptr);
} else {
text.ClipRight(1);
}
}
void GUITextBox::OnKeyPress(const KeyInput &ki) {
switch (ki.Key) {
case eAGSKeyCodeReturn:
IsActivated = true;
return;
case eAGSKeyCodeBackspace:
Backspace(Text);
MarkChanged();
return;
default: break;
}
if (ki.UChar == 0)
return; // not a textual event
if (get_uformat() == U_UTF8)
Text.Append(ki.Text); // proper unicode char
else if (ki.UChar < 256)
Text.AppendChar(static_cast<uint8_t>(ki.UChar)); // ascii/ansi-range char in ascii mode
else
return; // char from an unsupported range, don't print but still report as handled
// if the new string is too long, remove the new character
if (get_text_width(Text.GetCStr(), Font) > (_width - (6 + get_fixed_pixel_size(5))))
Backspace(Text);
MarkChanged();
}
void GUITextBox::SetShowBorder(bool on) {
if (on)
TextBoxFlags |= kTextBox_ShowBorder;
else
TextBoxFlags &= ~kTextBox_ShowBorder;
}
// TODO: replace string serialization with StrUtil::ReadString and WriteString
// methods in the future, to keep this organized.
void GUITextBox::WriteToFile(Stream *out) const {
GUIObject::WriteToFile(out);
StrUtil::WriteString(Text, out);
out->WriteInt32(Font);
out->WriteInt32(TextColor);
out->WriteInt32(TextBoxFlags);
}
void GUITextBox::ReadFromFile(Stream *in, GuiVersion gui_version) {
GUIObject::ReadFromFile(in, gui_version);
if (gui_version < kGuiVersion_350)
Text.ReadCount(in, GUITEXTBOX_LEGACY_TEXTLEN);
else
Text = StrUtil::ReadString(in);
Font = in->ReadInt32();
TextColor = in->ReadInt32();
TextBoxFlags = in->ReadInt32();
// reverse particular flags from older format
if (gui_version < kGuiVersion_350)
TextBoxFlags ^= kTextBox_OldFmtXorMask;
if (TextColor == 0)
TextColor = 16;
}
void GUITextBox::ReadFromSavegame(Stream *in, GuiSvgVersion svg_ver) {
GUIObject::ReadFromSavegame(in, svg_ver);
Font = in->ReadInt32();
TextColor = in->ReadInt32();
Text = StrUtil::ReadString(in);
if (svg_ver >= kGuiSvgVersion_350)
TextBoxFlags = in->ReadInt32();
}
void GUITextBox::WriteToSavegame(Stream *out) const {
GUIObject::WriteToSavegame(out);
out->WriteInt32(Font);
out->WriteInt32(TextColor);
StrUtil::WriteString(Text, out);
out->WriteInt32(TextBoxFlags);
}
} // namespace Shared
} // namespace AGS
} // namespace AGS3
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