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Tables: Reworked padding/spacing/width.

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All widths are stored without padding.
Decorelate padding from presence of border.
Added ImGuiTableFlags_Pad/NoPad flags.
Added demo.
Merge StartXHeaders and StartXRows into StartX.
Distinguish CellSpacingX1 and CellSpacingX2 for clarity and to avoid loss of width on non-even spacing values.
This commit is contained in:
ocornut
2020-10-07 22:44:02 +02:00
parent 75c5f534e8
commit 1731ae5a09
4 changed files with 231 additions and 141 deletions
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106
imgui_demo.cpp
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@ -3405,9 +3405,8 @@ static void ShowDemoWindowTables()
{
// Expose a few Borders related flags interactively
enum ContentsType { CT_Text, CT_FillButton };
static ImGuiTableFlags flags = ImGuiTableFlags_BordersOuter | ImGuiTableFlags_RowBg;
static ImGuiTableFlags flags = ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg;
static bool display_headers = false;
static bool display_width = false;
static int contents_type = CT_Text;
PushStyleCompact();
@ -3438,7 +3437,6 @@ static void ShowDemoWindowTables()
ImGui::SameLine(); ImGui::RadioButton("Text", &contents_type, CT_Text);
ImGui::SameLine(); ImGui::RadioButton("FillButton", &contents_type, CT_FillButton);
ImGui::Checkbox("Display headers", &display_headers);
ImGui::Checkbox("Display debug width", &display_width);
PopStyleCompact();
if (ImGui::BeginTable("##table1", 3, flags))
@ -3458,28 +3456,11 @@ static void ShowDemoWindowTables()
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
char buf[32];
if (display_width)
{
// [DEBUG] Draw limits FIXME-TABLE: Move to Advanced section
ImVec2 p = ImGui::GetCursorScreenPos();
float contents_x1 = p.x;
float contents_x2 = ImGui::GetWindowPos().x + ImGui::GetContentRegionMax().x;
float cliprect_x1 = ImGui::GetWindowDrawList()->GetClipRectMin().x;
float cliprect_x2 = ImGui::GetWindowDrawList()->GetClipRectMax().x;
float y1 = p.y;
float y2 = p.y + ImGui::GetTextLineHeight() + 2.0f;
ImDrawList* fg_draw_list = ImGui::GetForegroundDrawList();
fg_draw_list->AddRect(ImVec2(contents_x1, y1 + 0.0f), ImVec2(contents_x2, y2 + 0.0f), IM_COL32(255, 0, 0, 255)); // Contents limit (e.g. Cell + Padding)
fg_draw_list->AddLine(ImVec2(cliprect_x1, y2 + 1.0f), ImVec2(cliprect_x2, y2 + 1.0f), IM_COL32(255, 255, 0, 255)); // Hard clipping limit
sprintf(buf, "w=%.2f", contents_x2 - contents_x1);
}
else
{
sprintf(buf, "Hello %d,%d", row, column);
}
if (!ImGui::TableSetColumnIndex(column))
continue;
char buf[32];
sprintf(buf, "Hello %d,%d", row, column);
if (contents_type == CT_Text)
ImGui::TextUnformatted(buf);
else if (contents_type)
@ -3650,25 +3631,82 @@ static void ShowDemoWindowTables()
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Explicit widths"))
if (ImGui::TreeNode("Padding"))
{
static ImGuiTableFlags flags = ImGuiTableFlags_None;
static ImGuiTableFlags flags = ImGuiTableFlags_BordersV;
HelpMarker(
"We often want outer padding activated when any using features which makes the edges of a column visible:\n"
"e.g.:\n"
"- BorderOuterV\n"
"- any form of row selection\n"
"Because of this, activating BorderOuterV sets the default to PadOuterX. Using PadOuterX or NoPadOuterX you can override the default.\n");
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", (unsigned int*)&flags, ImGuiTableFlags_NoKeepColumnsVisible);
ImGui::CheckboxFlags("ImGuiTableFlags_PadOuterX", (unsigned int*)&flags, ImGuiTableFlags_PadOuterX);
ImGui::SameLine(); HelpMarker("Enable outer-most padding (default if ImGuiTableFlags_BordersOuterV is set)");
ImGui::CheckboxFlags("ImGuiTableFlags_NoPadOuterX", (unsigned int*)&flags, ImGuiTableFlags_NoPadOuterX);
ImGui::SameLine(); HelpMarker("Disable outer-most padding (default if ImGuiTableFlags_BordersOuterV is not set)");
ImGui::CheckboxFlags("ImGuiTableFlags_NoPadInnerX", (unsigned int*)&flags, ImGuiTableFlags_NoPadInnerX);
ImGui::SameLine(); HelpMarker("Disable inner padding between columns (double inner padding if BordersOuterV is on, single inner padding if BordersOuterV is off)");
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", (unsigned int*)&flags, ImGuiTableFlags_BordersOuterV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", (unsigned int*)&flags, ImGuiTableFlags_BordersInnerV);
PopStyleCompact();
if (ImGui::BeginTable("##table1", 3, flags))
{
// We could also set ImGuiTableFlags_SizingPolicyFixedX on the table and all columns will default to ImGuiTableColumnFlags_WidthFixed.
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 30.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
ImGui::TableSetColumnIndex(column);
if (row == 0)
{
ImGui::Text("Avail %.2f", ImGui::GetContentRegionAvail().x);
}
else
{
char buf[32];
sprintf(buf, "Hello %d,%d", row, column);
ImGui::Button(buf, ImVec2(-FLT_MIN, 0.0f));
}
if (ImGui::TableGetHoveredColumn() == column)
ImGui::TableSetBgColor(ImGuiTableBgTarget_CellBg, IM_COL32(0, 100, 0, 255));
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Explicit widths"))
{
static ImGuiTableFlags flags = ImGuiTableFlags_None;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", (unsigned int*)&flags, ImGuiTableFlags_NoKeepColumnsVisible);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", (unsigned int*)&flags, ImGuiTableFlags_BordersInnerV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", (unsigned int*)&flags, ImGuiTableFlags_BordersOuterV);
PopStyleCompact();
if (ImGui::BeginTable("##table1", 4, flags))
{
// We could also set ImGuiTableFlags_SizingPolicyFixedX on the table and all columns will default to ImGuiTableColumnFlags_WidthFixed.
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, 100.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 30.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 4; column++)
{
ImGui::TableSetColumnIndex(column);
if (row == 0)
ImGui::Text("(%.2f)", ImGui::GetContentRegionAvail().x);
ImGui::Text("Hello %d,%d", row, column);
}
}
@ -3679,7 +3717,7 @@ static void ShowDemoWindowTables()
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Vertical scrolling, with clipping"))
if (ImGui::TreeNode("Vertical scrolling"))
{
HelpMarker("Here we activate ScrollY, which will create a child window container to allow hosting scrollable contents.\n\nWe also demonstrate using ImGuiListClipper to virtualize the submission of many items.");
static ImGuiTableFlags flags = ImGuiTableFlags_ScrollY | ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable;
@ -4356,6 +4394,7 @@ static void ShowDemoWindowTables()
ImGui::TreePop();
}
//ImGui::SetNextItemOpen(true, ImGuiCond_Once); // [DEBUG]
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Advanced"))
@ -4415,6 +4454,9 @@ static void ShowDemoWindowTables()
if (ImGui::TreeNodeEx("Sizing, Padding:", ImGuiTreeNodeFlags_DefaultOpen))
{
ImGui::CheckboxFlags("ImGuiTableFlags_PadOuterX", (unsigned int*)&flags, ImGuiTableFlags_PadOuterX);
ImGui::CheckboxFlags("ImGuiTableFlags_NoPadOuterX", (unsigned int*)&flags, ImGuiTableFlags_NoPadOuterX);
ImGui::CheckboxFlags("ImGuiTableFlags_NoPadInnerX", (unsigned int*)&flags, ImGuiTableFlags_NoPadInnerX);
if (ImGui::CheckboxFlags("ImGuiTableFlags_SizingPolicyStretchX", (unsigned int*)&flags, ImGuiTableFlags_SizingPolicyStretchX))
flags &= ~(ImGuiTableFlags_SizingPolicyMaskX_ ^ ImGuiTableFlags_SizingPolicyStretchX); // Can't specify both sizing polices so we clear the other
ImGui::SameLine(); HelpMarker("[Default if ScrollX is off]\nFit all columns within available width (or specified inner_width). Fixed and Stretch columns allowed.");