Initial commit

engines/ags/shared/gui/gui_inv.cpp

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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/game_version.h"
+#include "ags/shared/gui/gui_inv.h"
+#include "ags/shared/gui/gui_main.h"
+#include "ags/shared/util/stream.h"
+
+namespace AGS3 {
+namespace AGS {
+namespace Shared {
+
+GUIInvWindow::GUIInvWindow() {
+	IsMouseOver = false;
+	CharId = -1;
+	ItemWidth = 40;
+	ItemHeight = 22;
+	ColCount = 0;
+	RowCount = 0;
+	TopItem = 0;
+	CalculateNumCells();
+
+	_scEventCount = 0;
+}
+
+void GUIInvWindow::OnMouseEnter() {
+	IsMouseOver = true;
+}
+
+void GUIInvWindow::OnMouseLeave() {
+	IsMouseOver = false;
+}
+
+void GUIInvWindow::OnMouseUp() {
+	if (IsMouseOver)
+		IsActivated = true;
+}
+
+void GUIInvWindow::OnResized() {
+	CalculateNumCells();
+	MarkChanged();
+}
+
+void GUIInvWindow::WriteToFile(Stream *out) const {
+	GUIObject::WriteToFile(out);
+	out->WriteInt32(CharId);
+	out->WriteInt32(ItemWidth);
+	out->WriteInt32(ItemHeight);
+}
+
+void GUIInvWindow::ReadFromFile(Stream *in, GuiVersion gui_version) {
+	GUIObject::ReadFromFile(in, gui_version);
+	if (gui_version >= kGuiVersion_unkn_109) {
+		CharId = in->ReadInt32();
+		ItemWidth = in->ReadInt32();
+		ItemHeight = in->ReadInt32();
+		if (gui_version < kGuiVersion_350) { // NOTE: reading into actual variables only for old savegame support
+			TopItem = in->ReadInt32();
+		}
+	} else {
+		CharId = -1;
+		ItemWidth = 40;
+		ItemHeight = 22;
+		TopItem = 0;
+	}
+
+	if (_G(loaded_game_file_version) >= kGameVersion_270) {
+		// ensure that some items are visible
+		if (ItemWidth > _width)
+			ItemWidth = _width;
+		if (ItemHeight > _height)
+			ItemHeight = _height;
+	}
+
+	CalculateNumCells();
+}
+
+void GUIInvWindow::ReadFromSavegame(Stream *in, GuiSvgVersion svg_ver) {
+	GUIObject::ReadFromSavegame(in, svg_ver);
+	ItemWidth = in->ReadInt32();
+	ItemHeight = in->ReadInt32();
+	CharId = in->ReadInt32();
+	TopItem = in->ReadInt32();
+	CalculateNumCells();
+}
+
+void GUIInvWindow::WriteToSavegame(Stream *out) const {
+	GUIObject::WriteToSavegame(out);
+	out->WriteInt32(ItemWidth);
+	out->WriteInt32(ItemHeight);
+	out->WriteInt32(CharId);
+	out->WriteInt32(TopItem);
+}
+
+void GUIInvWindow::CalculateNumCells() {
+	if (ItemWidth <= 0 || ItemHeight <= 0) {
+		ColCount = 0;
+		RowCount = 0;
+	} else if (_G(loaded_game_file_version) >= kGameVersion_270) {
+		ColCount = _width / data_to_game_coord(ItemWidth);
+		RowCount = _height / data_to_game_coord(ItemHeight);
+	} else {
+		ColCount = floor((float)_width / (float)data_to_game_coord(ItemWidth) + 0.5f);
+		RowCount = floor((float)_height / (float)data_to_game_coord(ItemHeight) + 0.5f);
+	}
+}
+
+} // namespace Shared
+} // namespace AGS
+} // namespace AGS3