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Tables: Angled headers: added TableAngledHeadersTextAlign, ImGuiStyleVar_TableAngledHeadersTextAlign. (#6917)

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thedmd 2024-04-30 16:08:48 +02:00 committed by ocornut
parent 4bb7567141
commit fc4d818e17
5 changed files with 43 additions and 9 deletions
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3
docs/CHANGELOG.txt
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@ -67,6 +67,9 @@ Other changes:
- ProgressBar: Added support for indeterminate progress bar by passing an animated
negative fraction, e.g. ProgressBar(-1.0f * GetTime()). (#5316, #5370, #1901)[@gan74]
- Tables: Angled headers: fixed multi-line label display when angle is flipped. (#6917)
- Tables: Angled headers: added style.TableAngledHeadersTextAlign and corresponding
ImGuiStyleVar_TableAngledHeadersTextAlign variable. Default to horizontal center. (#6917)
[@thedmd, @ocornut]
- Text, DrawList: Improved handling of long single-line wrapped text. Faster and
mitigitate issues with reading vertex indexing limits with 16-bit indices. (#7496, #5720)
- Backends: OpenGL: Detect ES3 contexts on desktop based on version string,

2
imgui.cpp
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@ -1226,6 +1226,7 @@ ImGuiStyle::ImGuiStyle()
TabMinWidthForCloseButton = 0.0f; // Minimum width for close button to appear on an unselected tab when hovered. Set to 0.0f to always show when hovering, set to FLT_MAX to never show close button unless selected.
TabBarBorderSize = 1.0f; // Thickness of tab-bar separator, which takes on the tab active color to denote focus.
TableAngledHeadersAngle = 35.0f * (IM_PI / 180.0f); // Angle of angled headers (supported values range from -50 degrees to +50 degrees).
TableAngledHeadersTextAlign = ImVec2(0.5f,0.0f); // Alignment of angled headers within the cell
ColorButtonPosition = ImGuiDir_Right; // Side of the color button in the ColorEdit4 widget (left/right). Defaults to ImGuiDir_Right.
ButtonTextAlign = ImVec2(0.5f,0.5f);// Alignment of button text when button is larger than text.
SelectableTextAlign = ImVec2(0.0f,0.0f);// Alignment of selectable text. Defaults to (0.0f, 0.0f) (top-left aligned). It's generally important to keep this left-aligned if you want to lay multiple items on a same line.
@ -3156,6 +3157,7 @@ static const ImGuiDataVarInfo GStyleVarInfo[] =
{ ImGuiDataType_Float, 1, (ImU32)offsetof(ImGuiStyle, TabBorderSize) }, // ImGuiStyleVar_TabBorderSize
{ ImGuiDataType_Float, 1, (ImU32)offsetof(ImGuiStyle, TabBarBorderSize) }, // ImGuiStyleVar_TabBarBorderSize
{ ImGuiDataType_Float, 1, (ImU32)offsetof(ImGuiStyle, TableAngledHeadersAngle)},// ImGuiStyleVar_TableAngledHeadersAngle
{ ImGuiDataType_Float, 2, (ImU32)offsetof(ImGuiStyle, TableAngledHeadersTextAlign)},//ImGuiStyleVar_TableAngledHeadersTextAlign
{ ImGuiDataType_Float, 2, (ImU32)offsetof(ImGuiStyle, ButtonTextAlign) }, // ImGuiStyleVar_ButtonTextAlign
{ ImGuiDataType_Float, 2, (ImU32)offsetof(ImGuiStyle, SelectableTextAlign) }, // ImGuiStyleVar_SelectableTextAlign
{ ImGuiDataType_Float, 1, (ImU32)offsetof(ImGuiStyle, SeparatorTextBorderSize)},// ImGuiStyleVar_SeparatorTextBorderSize

2
imgui.h
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@ -1584,6 +1584,7 @@ enum ImGuiStyleVar_
ImGuiStyleVar_TabBorderSize, // float TabBorderSize
ImGuiStyleVar_TabBarBorderSize, // float TabBarBorderSize
ImGuiStyleVar_TableAngledHeadersAngle,// float TableAngledHeadersAngle
ImGuiStyleVar_TableAngledHeadersTextAlign,// ImVec2 TableAngledHeadersTextAlign
ImGuiStyleVar_ButtonTextAlign, // ImVec2 ButtonTextAlign
ImGuiStyleVar_SelectableTextAlign, // ImVec2 SelectableTextAlign
ImGuiStyleVar_SeparatorTextBorderSize,// float SeparatorTextBorderSize
@ -2017,6 +2018,7 @@ struct ImGuiStyle
float TabMinWidthForCloseButton; // Minimum width for close button to appear on an unselected tab when hovered. Set to 0.0f to always show when hovering, set to FLT_MAX to never show close button unless selected.
float TabBarBorderSize; // Thickness of tab-bar separator, which takes on the tab active color to denote focus.
float TableAngledHeadersAngle; // Angle of angled headers (supported values range from -50.0f degrees to +50.0f degrees).
ImVec2 TableAngledHeadersTextAlign;// Alignment of angled headers within the cell
ImGuiDir ColorButtonPosition; // Side of the color button in the ColorEdit4 widget (left/right). Defaults to ImGuiDir_Right.
ImVec2 ButtonTextAlign; // Alignment of button text when button is larger than text. Defaults to (0.5f, 0.5f) (centered).
ImVec2 SelectableTextAlign; // Alignment of selectable text. Defaults to (0.0f, 0.0f) (top-left aligned). It's generally important to keep this left-aligned if you want to lay multiple items on a same line.

12
imgui_demo.cpp
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@ -5353,6 +5353,17 @@ static void ShowDemoWindowTables()
ImGui::SliderInt("Frozen rows", &frozen_rows, 0, 2);
ImGui::CheckboxFlags("Disable header contributing to column width", &column_flags, ImGuiTableColumnFlags_NoHeaderWidth);
if (ImGui::TreeNode("Style settings"))
{
ImGui::SameLine();
HelpMarker("Giving access to some ImGuiStyle value in this demo for convenience.");
ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
ImGui::SliderAngle("style.TableAngledHeadersAngle", &ImGui::GetStyle().TableAngledHeadersAngle, -50.0f, +50.0f);
ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
ImGui::SliderFloat2("style.TableAngledHeadersTextAlign", (float*)&ImGui::GetStyle().TableAngledHeadersTextAlign, 0.0f, 1.0f, "%.2f");
ImGui::TreePop();
}
if (ImGui::BeginTable("table_angled_headers", columns_count, table_flags, ImVec2(0.0f, TEXT_BASE_HEIGHT * 12)))
{
ImGui::TableSetupColumn(column_names[0], ImGuiTableColumnFlags_NoHide | ImGuiTableColumnFlags_NoReorder);
@ -6642,6 +6653,7 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
ImGui::SeparatorText("Tables");
ImGui::SliderFloat2("CellPadding", (float*)&style.CellPadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderAngle("TableAngledHeadersAngle", &style.TableAngledHeadersAngle, -50.0f, +50.0f);
ImGui::SliderFloat2("TableAngledHeadersTextAlign", (float*)&style.TableAngledHeadersTextAlign, 0.0f, 1.0f, "%.2f");
ImGui::SeparatorText("Widgets");
ImGui::SliderFloat2("WindowTitleAlign", (float*)&style.WindowTitleAlign, 0.0f, 1.0f, "%.2f");

33
imgui_tables.cpp
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@ -3252,9 +3252,13 @@ void ImGui::TableAngledHeadersRowEx(ImGuiID row_id, float angle, float max_label
ButtonBehavior(row_r, row_id, NULL, NULL);
KeepAliveID(row_id);
const float ascent_scaled = g.Font->Ascent * (g.FontSize / g.Font->FontSize); // FIXME: Standardize those scaling factors better
const float line_off_for_ascent_x = (ImMax((g.FontSize - ascent_scaled) * 0.5f, 0.0f) / -sin_a) * (flip_label ? -1.0f : 1.0f);
const ImVec2 padding = g.Style.CellPadding; // We will always use swapped component
const ImVec2 align = g.Style.TableAngledHeadersTextAlign;
// Draw background and labels in first pass, then all borders.
float max_x = 0.0f;
ImVec2 padding = g.Style.CellPadding; // We will always use swapped component
for (int pass = 0; pass < 2; pass++)
for (int order_n = 0; order_n < data_count; order_n++)
{
@ -3279,8 +3283,17 @@ void ImGui::TableAngledHeadersRowEx(ImGuiID row_id, float angle, float max_label
// - Handle multiple lines manually, as we want each lines to follow on the horizontal border, rather than see a whole block rotated.
const char* label_name = TableGetColumnName(table, column_n);
const char* label_name_end = FindRenderedTextEnd(label_name);
const float line_off_step_x = (g.FontSize / -sin_a) * (flip_label ? -1.0f : 1.0f);
float line_off_curr_x = flip_label ? (ImTextCountLines(label_name, label_name_end) - 1) * -line_off_step_x : 0.0f;
const float line_off_step_x = (g.FontSize / -sin_a);
const int label_lines = ImTextCountLines(label_name, label_name_end);
// Left<>Right alignment
float line_off_curr_x = flip_label ? (label_lines - 1) * line_off_step_x : 0.0f;
float line_off_for_align_x = ImMax((((column->MaxX - column->MinX) - padding.x * 2.0f) - (label_lines * line_off_step_x)), 0.0f) * align.x;
line_off_curr_x += line_off_for_align_x - line_off_for_ascent_x;
// Register header width
column->ContentMaxXHeadersUsed = column->ContentMaxXHeadersIdeal = column->WorkMinX + ImCeil(label_lines * line_off_step_x - line_off_for_align_x);
while (label_name < label_name_end)
{
const char* label_name_eol = strchr(label_name, '\n');
@ -3298,19 +3311,21 @@ void ImGui::TableAngledHeadersRowEx(ImGuiID row_id, float angle, float max_label
PopStyleColor();
int vtx_idx_end = draw_list->_VtxCurrentIdx;
// Up<>Down alignment
const float available_space = ImMax(clip_width - label_size.x + ImAbs(padding.x * cos_a) * 2.0f - ImAbs(padding.y * sin_a) * 2.0f, 0.0f);
const float vertical_offset = available_space * align.y * (flip_label ? -1.0f : 1.0f);
// Rotate and offset label
ImVec2 pivot_in = ImVec2(window->ClipRect.Min.x, window->ClipRect.Min.y + label_size.y);
ImVec2 pivot_in = ImVec2(window->ClipRect.Min.x - vertical_offset, window->ClipRect.Min.y + label_size.y);
ImVec2 pivot_out = ImVec2(column->WorkMinX, row_r.Max.y);
line_off_curr_x += line_off_step_x;
line_off_curr_x += flip_label ? -line_off_step_x : line_off_step_x;
pivot_out += unit_right * padding.y;
if (flip_label)
pivot_out += unit_right * (clip_width - ImMax(0.0f, clip_width - label_size.x));
pivot_out.x += flip_label ? line_off_curr_x - line_off_step_x : line_off_curr_x;
pivot_out.x += flip_label ? line_off_curr_x + line_off_step_x : line_off_curr_x;
ShadeVertsTransformPos(draw_list, vtx_idx_begin, vtx_idx_end, pivot_in, label_cos_a, label_sin_a, pivot_out); // Rotate and offset
//if (g.IO.KeyShift) { ImDrawList* fg_dl = GetForegroundDrawList(); vtx_idx_begin = fg_dl->_VtxCurrentIdx; fg_dl->AddRect(clip_r.Min, clip_r.Max, IM_COL32(0, 255, 0, 255), 0.0f, 0, 2.0f); ShadeVertsTransformPos(fg_dl, vtx_idx_begin, fg_dl->_VtxCurrentIdx, pivot_in, label_cos_a, label_sin_a, pivot_out); }
//if (g.IO.KeyShift) { ImDrawList* fg_dl = GetForegroundDrawList(); vtx_idx_begin = fg_dl->_VtxCurrentIdx; fg_dl->AddRect(clip_r.Min, clip_r.Max, IM_COL32(0, 255, 0, 255), 0.0f, 0, 1.0f); ShadeVertsTransformPos(fg_dl, vtx_idx_begin, fg_dl->_VtxCurrentIdx, pivot_in, label_cos_a, label_sin_a, pivot_out); }
// Register header width
column->ContentMaxXHeadersUsed = column->ContentMaxXHeadersIdeal = column->WorkMinX + ImCeil(line_off_curr_x);
label_name = label_name_eol + 1;
}
}