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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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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;
}
}