/**
* @brief Create a top-down flow layout with child of the node.
* Child position is automatically set, child height don't change
* and child width is set according to node width and padding
* @param[in,out] node The panel node to render the children for
* @param[in] margin The margin between all children nodes in their y-position of the panel
* @note test only
*/
static void UI_TopDownFlowLayout (uiNode_t *node, int margin)
{
const int width = node->size[0] - node->padding - node->padding;
int positionY = node->padding;
uiNode_t *child = node->firstChild;
vec2_t newSize = {width, 0};
while (child) {
newSize[1] = child->size[1];
UI_NodeSetSize(child, newSize);
child->pos[0] = node->padding;
child->pos[1] = positionY;
positionY += child->size[1] + margin;
child = child->next;
}
/* fix scroll */
{
qboolean updated;
updated = UI_SetScroll(&EXTRADATA(node).super.scrollX, -1, node->size[0], node->size[0]);
updated = UI_SetScroll(&EXTRADATA(node).super.scrollY, -1, node->size[1], positionY + node->padding) || updated;
if (updated && EXTRADATA(node).super.onViewChange)
UI_ExecuteEventActions(node, EXTRADATA(node).super.onViewChange);
}
}
/**
* @brief Handle mouse wheel scrolling
* @param[in, out] node UI node to scroll
* @param[in] deltaX horizontal scrolling value (not used)
* @param[in] deltaX vertical scrolling value
*/
static qboolean UI_PanelNodeMouseWheel (uiNode_t *node, int deltaX, int deltaY)
{
qboolean down = deltaY > 0;
qboolean updated;
/* @todo remove wheelScrollable after 2.4 release */
if (!EXTRADATA(node).wheelScrollable || deltaY == 0)
return qfalse;
updated = UI_SetScroll(&EXTRADATA(node).super.scrollY, EXTRADATA(node).super.scrollY.viewPos + deltaY * 50, -1, -1);
if (EXTRADATA(node).super.onViewChange && updated)
UI_ExecuteEventActions(node, EXTRADATA(node).super.onViewChange);
/* @todo use super behaviour */
if (node->onWheelUp && !down) {
UI_ExecuteEventActions(node, node->onWheelUp);
updated = qtrue;
}
if (node->onWheelDown && down) {
UI_ExecuteEventActions(node, node->onWheelDown);
updated = qtrue;
}
if (node->onWheel) {
UI_ExecuteEventActions(node, node->onWheel);
updated = qtrue;
}
return updated;
}
/**
* @brief Auto scroll the list
*/
static qboolean UI_OptionListNodeMouseWheel (uiNode_t *node, int deltaX, int deltaY)
{
qboolean down = deltaY > 0;
qboolean updated;
if (deltaY == 0)
return qfalse;
updated = UI_SetScroll(&EXTRADATA(node).scrollY, EXTRADATA(node).scrollY.viewPos + (down ? 1 : -1), -1, -1);
if (EXTRADATA(node).onViewChange && updated)
UI_ExecuteEventActions(node, EXTRADATA(node).onViewChange);
/* @todo use super behaviour */
if (node->onWheelUp && !down) {
UI_ExecuteEventActions(node, node->onWheelUp);
updated = qtrue;
}
if (node->onWheelDown && down) {
UI_ExecuteEventActions(node, node->onWheelDown);
updated = qtrue;
}
if (node->onWheel) {
UI_ExecuteEventActions(node, node->onWheel);
updated = qtrue;
}
return updated;
}
/**
* @brief Set the Y scroll to a position, and call event if need
* @param[in] node Context node
* @param[in] viewPos New position to set, else -1 if no change
* @param[in] viewSize New view size to set, else -1 if no change
* @param[in] fullSize New full size to set, else -1 if no change
* @return True, if something have change
*/
qboolean UI_AbstractScrollableNodeSetY (uiNode_t *node, int viewPos, int viewSize, int fullSize)
{
qboolean updated;
assert(UI_NodeInstanceOf(node, "abstractscrollable"));
updated = UI_SetScroll(&EXTRADATA(node).scrollY, viewPos, viewSize, fullSize);
if (updated && EXTRADATA(node).onViewChange)
UI_ExecuteEventActions(node, EXTRADATA(node).onViewChange);
return updated;
}
static void UI_OptionTreeSetSelectedValue (uiNode_t *node, const uiCallContext_t *context)
{
uiOptionIterator_t iterator;
uiNode_t *option;
uiNode_t *firstOption;
const char* value;
int pos, i;
if (UI_GetParamNumber(context) != 1) {
Com_Printf("UI_OptionTreeSetSelectedValue: Invalide number of param\n");
return;
}
value = UI_GetParam(context, 1);
/* is the option exists */
firstOption = UI_OptionTreeNodeGetFirstOption(node);
UI_InitOptionIteratorAtIndex(0, firstOption, &iterator);
/** @todo merge that into the Init iterator function */
iterator.skipCollapsed = qfalse;
option = UI_FindOptionByValue(&iterator, value);
/* update the selection */
if (option) {
UI_AbstractOptionSetCurrentValue(node, OPTIONEXTRADATA(option).value);
} else {
Com_Printf("UI_OptionTreeSetSelectedValue: Option value \"%s\" not found\n", value);
return;
}
/* expend parents */
for (i = 0; i < iterator.depthPos; i++)
OPTIONEXTRADATA(iterator.depthCache[i]).collapsed = qfalse;
UI_OptionTreeNodeUpdateCache(node);
UI_OptionTreeNodeUpdateScroll(node);
/* fix scroll bar */
firstOption = UI_OptionTreeNodeGetFirstOption(node);
UI_InitOptionIteratorAtIndex(0, firstOption, &iterator);
pos = UI_FindOptionPosition(&iterator, option);
if (pos == -1)
return;
if (pos < EXTRADATA(node).scrollY.viewPos || pos >= EXTRADATA(node).scrollY.viewPos + EXTRADATA(node).scrollY.viewSize) {
qboolean updated;
updated = UI_SetScroll(&EXTRADATA(node).scrollY, pos, -1, -1);
if (updated && EXTRADATA(node).onViewChange)
UI_ExecuteEventActions(node, EXTRADATA(node).onViewChange);
}
}
/**
* Update the client zone
*/
static void UI_ClientLayout (uiNode_t *node)
{
int width = 0;
int height = 0;
uiNode_t *child;
qboolean updated;
for (child = node->firstChild; child; child = child->next) {
int value;
value = child->pos[0] + child->size[0];
if (value > width)
width = value;
value = child->pos[1] + child->size[1];
if (value > height)
height = value;
}
width += node->padding;
height += node->padding;
updated = UI_SetScroll(&EXTRADATA(node).super.scrollX, -1, node->size[0], width);
updated = UI_SetScroll(&EXTRADATA(node).super.scrollY, -1, node->size[1], height) || updated;
if (updated && EXTRADATA(node).super.onViewChange)
UI_ExecuteEventActions(node, EXTRADATA(node).super.onViewChange);
}
/**
* @brief Update the scroll according to the number
* of items and the size of the node
*/
static void UI_OptionTreeNodeUpdateScroll (uiNode_t *node)
{
const char *font;
int fontHeight;
qboolean updated;
int elements;
font = UI_GetFontFromNode(node);
fontHeight = EXTRADATA(node).lineHeight;
if (fontHeight == 0)
fontHeight = UI_FontGetHeight(font);
elements = (node->size[1] - node->padding - node->padding) / fontHeight;
updated = UI_SetScroll(&EXTRADATA(node).scrollY, -1, elements, EXTRADATA(node).count);
if (updated && EXTRADATA(node).onViewChange)
UI_ExecuteEventActions(node, EXTRADATA(node).onViewChange);
}
/**
* @brief Auto scroll the list
*/
static void UI_OptionTreeNodeMouseWheel (uiNode_t *node, int deltaX, int deltaY)
{
qboolean down = deltaY > 0;
qboolean updated;
if (deltaY == 0)
return;
updated = UI_SetScroll(&EXTRADATA(node).scrollY, EXTRADATA(node).scrollY.viewPos + (down ? 1 : -1), -1, -1);
if (EXTRADATA(node).onViewChange && updated)
UI_ExecuteEventActions(node, EXTRADATA(node).onViewChange);
if (node->onWheelUp && !down)
UI_ExecuteEventActions(node, node->onWheelUp);
if (node->onWheelDown && down)
UI_ExecuteEventActions(node, node->onWheelDown);
if (node->onWheel)
UI_ExecuteEventActions(node, node->onWheel);
}
static void UI_OptionListNodeCapturedMouseMove (uiNode_t *node, int x, int y)
{
const int lineHeight = node->behaviour->getCellHeight(node);
const int deltaY = (mouseScrollY - y) / lineHeight;
/* We're doing only vertical scroll, that's enough for the most instances */
if (deltaY != 0) {
qboolean updated;
updated = UI_SetScroll(&EXTRADATA(node).scrollY, EXTRADATA(node).scrollY.viewPos + deltaY, -1, -1);
if (EXTRADATA(node).onViewChange && updated)
UI_ExecuteEventActions(node, EXTRADATA(node).onViewChange);
/* @todo not accurate */
mouseScrollX = x;
mouseScrollY = y;
}
if (node->behaviour->mouseMove)
node->behaviour->mouseMove(node, x, y);
}
/**
* @brief Do column layout. A grid layout according to a fixed number of column.
* Check to first row to see the needed size of columns, and the height. All rows
* will use the same row.
* @todo Use child\@align to align each nodes inside respective cell.
* @image html http://ufoai.org/wiki/images/Layout_column.png
*/
static void UI_ColumnLayout (uiNode_t *node)
{
int columnPos[EXTRADATA(node).layoutColumns];
int columnSize[EXTRADATA(node).layoutColumns];
int rowHeight = 0;
int i;
int y;
uiNode_t *child;
if (EXTRADATA(node).layoutColumns <= 0) {
Com_Printf("UI_ColumnLayout: Column number must be positive (%s). Layout ignored.", UI_GetPath(node));
return;
}
/* check the first row */
child = node->firstChild;
for (i = 0; i < EXTRADATA(node).layoutColumns; i++) {
if (child == NULL)
break;
columnSize[i] = child->size[0];
if (child->size[1] > rowHeight) {
rowHeight = child->size[1];
}
child = child->next;
}
/* compute column position */
columnPos[0] = node->padding;
for (i = 1; i < EXTRADATA(node).layoutColumns; i++) {
columnPos[i] = columnPos[i - 1] + columnSize[i - 1] + EXTRADATA(node).layoutMargin;
}
/* fix child position */
i = 0;
y = -1;
for (child = node->firstChild; child; child = child->next) {
const int column = i % EXTRADATA(node).layoutColumns;
if (column == 0) {
if (y < 0) {
y = node->padding;
} else {
y += rowHeight + EXTRADATA(node).layoutMargin;
}
}
child->pos[0] = columnPos[column];
child->pos[1] = y;
/*UI_NodeSetSize(child, node->size);*/
child->behaviour->doLayout(child);
i++;
}
/* fix scroll */
{
const int column = EXTRADATA(node).layoutColumns;
int width = columnPos[column - 1] + columnSize[column - 1] + node->padding;
int height = y + rowHeight + node->padding;
qboolean updated;
updated = UI_SetScroll(&EXTRADATA(node).super.scrollX, -1, node->size[0], width);
updated = UI_SetScroll(&EXTRADATA(node).super.scrollY, -1, node->size[1], height) || updated;
if (updated && EXTRADATA(node).super.onViewChange)
UI_ExecuteEventActions(node, EXTRADATA(node).super.onViewChange);
}
}
