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grid widget development

This commit is contained in:
Vadim Lopatin 2014-05-26 15:58:30 +04:00
parent 1b9933447b
commit a6a7d91eac
4 changed files with 121 additions and 15 deletions
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5
examples/example1/src/main.d
View File

@ -513,6 +513,11 @@ extern (C) int UIAppMain(string[] args) {
//==========================================================================
StringGridWidget grid = new StringGridWidget("GRID1");
grid.layoutWidth(FILL_PARENT).layoutHeight(FILL_PARENT);
tabs.addTab(grid, "Grid"d);
contentLayout.addChild(tabs);
window.mainWidget = contentLayout;

1
src/dlangui/all.d
View File

@ -57,5 +57,6 @@ public import dlangui.widgets.lists;
public import dlangui.widgets.tabs;
public import dlangui.widgets.menu;
public import dlangui.widgets.editors;
public import dlangui.widgets.grid;
public import dlangui.graphics.fonts;
public import dlangui.core.i18n;

12
src/dlangui/widgets/controls.d
View File

@ -617,9 +617,15 @@ class ScrollBar : AbstractSlider, OnClickHandler {
_pageDown.measure(parentWidth, parentHeight);
_btnSize = _btnBack.measuredWidth;
_minIndicatorSize = _orientation == Orientation.Vertical ? _indicator.measuredHeight : _indicator.measuredWidth;
if (_btnSize < _btnBack.measuredHeight)
_btnSize = _btnBack.measuredHeight;
if (_btnSize < 16)
if (_btnSize < _minIndicatorSize)
_btnSize = _minIndicatorSize;
if (_btnSize < _btnForward.measuredWidth)
_btnSize = _btnForward.measuredWidth;
if (_btnSize < _btnForward.measuredHeight)
_btnSize = _btnForward.measuredHeight;
if (_btnSize < _btnBack.measuredHeight)
_btnSize = _btnBack.measuredHeight;
if (_btnSize < 16)
_btnSize = 16;
if (_orientation == Orientation.Vertical) {
// vertical

118
src/dlangui/widgets/grid.d
View File

@ -1,6 +1,7 @@
module src.dlangui.widgets.grid;
module dlangui.widgets.grid;
import dlangui.widgets.widget;
import dlangui.widgets.controls;
/**
* Data provider for GridWidget.
@ -93,7 +94,7 @@ class GridWidgetBase : WidgetGroup {
/// flag to enable row headers
@property abstract bool showRowHeaders();
@property abstract GridWidgetBase showRowHeaders(bool show);
this(string ID) {
this(string ID = null) {
super(ID);
}
}
@ -102,6 +103,8 @@ class GridWidgetBase : WidgetGroup {
* Grid view with string data shown. All rows are of the same height.
*/
class StringGridWidget : GridWidgetBase {
protected ScrollBar _vscrollbar;
protected ScrollBar _hscrollbar;
protected int _cols;
protected int _rows;
protected dstring[][] _data;
@ -109,8 +112,17 @@ class StringGridWidget : GridWidgetBase {
protected dstring[] _colTitles;
protected bool _showColHeaders;
protected bool _showRowHeaders;
this(string ID) {
protected int[] _colWidths;
protected int[] _rowHeights;
this(string ID = null) {
super(ID);
_showColHeaders = true;
_showRowHeaders = true;
_vscrollbar = new ScrollBar("vscrollbar", Orientation.Vertical);
_hscrollbar = new ScrollBar("hscrollbar", Orientation.Horizontal);
addChild(_vscrollbar);
addChild(_hscrollbar);
styleId = "EDIT_BOX";
}
@property override int cols() {
return _cols;
@ -126,10 +138,6 @@ class StringGridWidget : GridWidgetBase {
resize(_cols, r);
return this;
}
/// get cell text
dstring cellText(int col, int row) {
return _data[row][col];
}
/// flag to enable column headers
@property override bool showColHeaders() {
return _showColHeaders;
@ -146,6 +154,10 @@ class StringGridWidget : GridWidgetBase {
_showRowHeaders = show;
return this;
}
/// get cell text
dstring cellText(int col, int row) {
return _data[row][col];
}
/// set cell text
GridWidgetBase setCellText(int col, int row, dstring text) {
_data[row][col] = text;
@ -157,11 +169,13 @@ class StringGridWidget : GridWidgetBase {
return;
_cols = cols;
_rows = rows;
_data.length = _rows;
for (int y = 0; y < _rows; y++)
_data[y].length = _cols;
_colTitles.length = _cols;
_rowTitles.length = _rows;
_data.length = rows;
for (int y = 0; y < rows; y++)
_data[y].length = cols;
_colTitles.length = cols;
_rowTitles.length = rows;
_colWidths.length = cols;
_rowHeights.length = rows;
}
/// returns row header title
dstring rowTitle(int row) {
@ -181,6 +195,86 @@ class StringGridWidget : GridWidgetBase {
_colTitles[col] = title;
return this;
}
/// draw column header
void drawColHeader(DrawBuf buf, Rect rc, int index) {
FontRef fnt = font;
buf.fillRect(rc, 0xE0E0E0);
buf.drawFrame(rc, 0x808080, Rect(1,1,1,1));
fnt.drawText(buf, rc.left, rc.top, "col"d, 0x000000);
}
/// draw row header
void drawRowHeader(DrawBuf buf, Rect rc, int index) {
FontRef fnt = font;
buf.fillRect(rc, 0xE0E0E0);
buf.drawFrame(rc, 0x808080, Rect(1,1,1,1));
fnt.drawText(buf, rc.left, rc.top, "row"d, 0x000000);
}
/// draw cell header
void drawCell(DrawBuf buf, Rect rc, int col, int row) {
FontRef fnt = font;
fnt.drawText(buf, rc.left, rc.top, "sample"d, 0x000000);
}
/// Measure widget according to desired width and height constraints. (Step 1 of two phase layout).
override void measure(int parentWidth, int parentHeight) {
Rect m = margins;
Rect p = padding;
// calc size constraints for children
int pwidth = parentWidth;
int pheight = parentHeight;
if (parentWidth != SIZE_UNSPECIFIED)
pwidth -= m.left + m.right + p.left + p.right;
if (parentHeight != SIZE_UNSPECIFIED)
pheight -= m.top + m.bottom + p.top + p.bottom;
_hscrollbar.measure(pwidth, pheight);
_vscrollbar.measure(pwidth, pheight);
measuredContent(parentWidth, parentHeight, 100, 100);
}
protected Rect _clientRect;
/// Set widget rectangle to specified value and layout widget contents. (Step 2 of two phase layout).
override void layout(Rect rc) {
if (visibility == Visibility.Gone) {
return;
}
_pos = rc;
_needLayout = false;
applyMargins(rc);
applyPadding(rc);
// scrollbars
Rect vsbrc = rc;
vsbrc.left = vsbrc.right - _vscrollbar.measuredWidth;
vsbrc.bottom = vsbrc.bottom - _hscrollbar.measuredHeight;
Rect hsbrc = rc;
hsbrc.right = hsbrc.right - _vscrollbar.measuredWidth;
hsbrc.top = hsbrc.bottom - _hscrollbar.measuredHeight;
_vscrollbar.layout(vsbrc);
_hscrollbar.layout(hsbrc);
// client area
_clientRect = rc;
_clientRect.right = vsbrc.left;
_clientRect.bottom = hsbrc.top;
}
void drawClient(DrawBuf buf) {
buf.fillRect(_clientRect, 0x80A08080);
}
/// Draw widget at its position to buffer
override void onDraw(DrawBuf buf) {
if (visibility != Visibility.Visible)
return;
Rect rc = _pos;
applyMargins(rc);
auto saver = ClipRectSaver(buf, rc, alpha);
DrawableRef bg = backgroundDrawable;
if (!bg.isNull) {
bg.drawTo(buf, rc, state);
}
applyPadding(rc);
_hscrollbar.onDraw(buf);
_vscrollbar.onDraw(buf);
drawClient(buf);
_needDraw = false;
}
}
/**