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@ -17,6 +17,7 @@
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#include "strings_func.h"
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#include "viewport_func.h"
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#include "window_gui.h"
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#include "window_func.h"
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#include "widgets/object_widget.h"
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@ -25,6 +26,8 @@
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static ObjectClassID _selected_object_class; ///< the currently visible object class
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static int _selected_object_index; ///< the index of the selected object in the current class or -1
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static uint8 _selected_object_view; ///< the view of the selected object
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static uint _matrix_col_count; ///< Number of columns of the object type matrix
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static uint _list_row_count; ///< Number of rows of the object class list
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/** The window used for building objects. */
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class BuildObjectWindow : public PickerWindowBase {
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@ -58,6 +61,16 @@ class BuildObjectWindow : public PickerWindowBase {
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return sel_objclass->GetSpec(_selected_object_index)->IsAvailable();
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}
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/**
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* Calculate the number of columns of the #WID_BO_SELECT_MATRIX widget.
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* @return Number of columns in the matrix.
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*/
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uint GetMatrixColumnCount()
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{
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const NWidgetBase *matrix = this->GetWidget<NWidgetBase>(WID_BO_SELECT_MATRIX);
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return 1 + (matrix->current_x - matrix->smallest_x) / matrix->resize_x;
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}
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public:
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BuildObjectWindow(const WindowDesc *desc, Window *w) : PickerWindowBase(w), info_height(1)
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{
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@ -82,11 +95,29 @@ public:
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NWidgetMatrix *matrix = this->GetWidget<NWidgetMatrix>(WID_BO_SELECT_MATRIX);
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matrix->SetScrollbar(this->GetScrollbar(WID_BO_SELECT_SCROLL));
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matrix->SetCount(ObjectClass::Get(_selected_object_class)->GetUISpecCount());
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/* If needed restore the window previous size with the stored values.*/
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uint default_num_cols = this->GetMatrixColumnCount();
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uint default_num_rows = this->vscroll->GetCapacity();
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int delta_x = (_matrix_col_count > default_num_cols) ? (_matrix_col_count - default_num_cols) * this->resize.step_width : 0;
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int delta_y = (_list_row_count > default_num_rows) ? (_list_row_count - default_num_rows) * this->resize.step_height : 0;
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if (delta_x > 0 || delta_y > 0) {
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ResizeWindow(this, delta_x, delta_y, false);
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/* The window may be linked to the toolbars, thus positioned at the left-bottom of the toolbars.
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* If the resized window is wider than the toolbars, its position need te be adjusted to ensure all
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* matrix columns are visible. */
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this->FindWindowPlacementAndResize(this->width, this->height);
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}
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if (_selected_object_index != -1) matrix->SetClicked(_selected_object_index);
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}
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virtual ~BuildObjectWindow()
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{
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/* Store the number of columns of the object type matrix and the number of rows of the object class list
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* to restore them on the next window invocation. */
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_matrix_col_count = this->GetMatrixColumnCount();
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_list_row_count = this->vscroll->GetCapacity();
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}
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virtual void SetStringParameters(int widget) const
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