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Window title text centering tweaks, RenderTextClipped() now has different args for pos_max and clip_max #222

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docking
ocornut 10 years ago
parent 30552ecfd6
commit ad79db32c7
1 changed files with 30 additions and 27 deletions
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57
imgui.cpp
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@ -498,7 +498,7 @@ static void LogText(const ImVec2& ref_pos, const char* text, const char*
static void RenderText(ImVec2 pos, const char* text, const char* text_end = NULL, bool hide_text_after_hash = true);
static void RenderTextWrapped(ImVec2 pos, const char* text, const char* text_end, float wrap_width);
static void RenderTextClipped(ImVec2 pos, const char* text, const char* text_end, const ImVec2* text_size_if_known, const ImVec2& clip_max, ImGuiAlign align = ImGuiAlign_Default);
static void RenderTextClipped(ImVec2 pos, const char* text, const char* text_end, const ImVec2* text_size_if_known, const ImVec2& pos_max, const ImVec2* clip_max = NULL, ImGuiAlign align = ImGuiAlign_Default);
static void RenderFrame(ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, bool border = true, float rounding = 0.0f);
static void RenderCollapseTriangle(ImVec2 p_min, bool opened, float scale = 1.0f, bool shadow = false);
static void RenderCheckMark(ImVec2 pos, ImU32 col);
@ -2465,29 +2465,30 @@ static void RenderTextWrapped(ImVec2 pos, const char* text, const char* text_end
}
}
static void RenderTextClipped(ImVec2 pos, const char* text, const char* text_end, const ImVec2* text_size_if_known, const ImVec2& clip_max, ImGuiAlign align)
static void RenderTextClipped(ImVec2 pos, const char* text, const char* text_end, const ImVec2* text_size_if_known, const ImVec2& pos_max, const ImVec2* clip_max, ImGuiAlign align)
{
ImGuiState& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
// Hide anything after a '##' string
const char* text_display_end = FindTextDisplayEnd(text, text_end);
const int text_len = (int)(text_display_end - text);
if (text_len > 0)
{
// Perform CPU side clipping for single clipped element to avoid using scissor state
const ImVec2 text_size = text_size_if_known ? *text_size_if_known : ImGui::CalcTextSize(text, text_display_end, false, 0.0f);
const bool need_clipping = (pos.x + text_size.x >= clip_max.x) || (pos.y + text_size.y >= clip_max.y);
if (text_len == 0)
return;
// Align
if (align & ImGuiAlign_Center) pos.x = ImMax(pos.x, (pos.x + clip_max.x - text_size.x) * 0.5f);
else if (align & ImGuiAlign_Right) pos.x = ImMax(pos.x, clip_max.x - text_size.x);
ImGuiState& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow();
// Render
window->DrawList->AddText(g.Font, g.FontSize, pos, window->Color(ImGuiCol_Text), text, text_display_end, 0.0f, need_clipping ? &clip_max : NULL);
if (g.LogEnabled)
LogText(pos, text, text_display_end);
}
// Perform CPU side clipping for single clipped element to avoid using scissor state
const ImVec2 text_size = text_size_if_known ? *text_size_if_known : ImGui::CalcTextSize(text, text_display_end, false, 0.0f);
if (!clip_max) clip_max = &pos_max;
const bool need_clipping = (pos.x + text_size.x >= clip_max->x) || (pos.y + text_size.y >= clip_max->y);
// Align
if (align & ImGuiAlign_Center) pos.x = ImMax(pos.x, (pos.x + pos_max.x - text_size.x) * 0.5f);
else if (align & ImGuiAlign_Right) pos.x = ImMax(pos.x, pos_max.x - text_size.x);
// Render
window->DrawList->AddText(g.Font, g.FontSize, pos, window->Color(ImGuiCol_Text), text, text_display_end, 0.0f, need_clipping ? clip_max : NULL);
if (g.LogEnabled)
LogText(pos, text, text_display_end);
}
// Render a rectangle shaped with optional rounding and borders
@ -3538,17 +3539,19 @@ bool ImGui::Begin(const char* name, bool* p_opened, const ImVec2& size_on_first_
if (p_opened != NULL)
CloseWindowButton(p_opened);
ImVec2 text_min = window->Pos + style.FramePadding;
const ImVec2 text_size = CalcTextSize(name, NULL, true);
if (!(flags & ImGuiWindowFlags_NoCollapse))
{
RenderCollapseTriangle(window->Pos + style.FramePadding, !window->Collapsed, 1.0f, true);
text_min.x += g.FontSize + style.ItemInnerSpacing.x;
}
const ImVec2 text_size = CalcTextSize(name, NULL, true);
ImVec2 text_max = window->Pos + ImVec2(window->Size.x - (p_opened ? title_bar_rect.GetHeight()-3 : style.FramePadding.x), style.FramePadding.y*2 + text_size.y);
if (style.WindowTitleAlign & ImGuiAlign_Right) text_max.x -= style.FramePadding.x;
RenderTextClipped(text_min, name, NULL, &text_size, text_max, style.WindowTitleAlign);
ImVec2 text_min = window->Pos + style.FramePadding;
ImVec2 text_max = window->Pos + ImVec2(window->Size.x - style.FramePadding.x, style.FramePadding.y*2 + text_size.y);
ImVec2 clip_max = ImVec2(window->Pos.x + window->Size.x - (p_opened ? title_bar_rect.GetHeight() - 3 : style.FramePadding.x), text_max.y); // Match the size of CloseWindowButton()
bool pad_left = (flags & ImGuiWindowFlags_NoCollapse) == 0;
bool pad_right = (p_opened != NULL);
if (style.WindowTitleAlign & ImGuiAlign_Center) pad_right = pad_left;
if (pad_left) text_min.x += g.FontSize + style.ItemInnerSpacing.x;
if (pad_right) text_max.x -= g.FontSize + style.ItemInnerSpacing.x;
RenderTextClipped(text_min, name, NULL, &text_size, text_max, &clip_max, style.WindowTitleAlign);
}
if (flags & ImGuiWindowFlags_Popup)
{

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